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38 results about "Normal cartilage" patented technology

Biosynthetic composite for osteochondral defect repair

ActiveUS20060195188A1Easy to integrateBone implantLigamentsOsseointegrationOsteochondral grafting
A composite for osteochondral defect repair includes a porous scaffold and a periosteal graft secured to a surface of the scaffold. The composite provides cartilage growth from autologous periosteum chondrogenesis. Biological resurfacing of large osteochondral defects, or a complete joint is feasible using the porous scaffold / autologous periosteal composite. The use of this composite eliminates the necessity of using normal cartilage surface as a donor site and its respective associated morbidity. In one form, the strong bone integration capacity of a porous metal (e.g., tantalum) scaffold and the high grade of integration observed from periosteal chondrogenesis into the normal cartilage eliminates the lack of chondral-chondral integration observed in the autologous osteochondral graft technique.
Owner:MAYO FOUND FOR MEDICAL EDUCATION & RES

Articular cartilage graft and preparation method thereof

An articular cartilage graft and a preparation method thereof are provided. The prepared articular cartilage graft is composed of a superficial layer, a middle layer and a deep layer from outside to inside; the thickness, shape and size of each layer are all matched with a cartilage injury part, and thus preoperative shaping is not required; after grafting, the articular cartilage graft has layer distribution corresponding to distribution of each layer of surrounding normal cartilages, is conducive to intercellular signal transmission, transduction and regulation, and can be better integrated with surrounding normal cartilage tissues; the articular cartilage graft has structure characteristics consistent with those of the natural cartilages, the collagen type II content is gradually decreased from the superficial layer to the deep layer, the GAG content is increased gradually from the superficial layer to the deep layer, and compression resistance and wear resistance are good; and chondrocytes in the cartilage graft are wrapped with an extracellular matrix, have low immunogenicity, allow generation of immunologic rejection to be avoided after grafting, can survive for a long term and exert functions, and improve cartilage repair long-term curative effects.
Owner:西安博鸿生物技术有限公司

Bionic cartilage based on 3D printing and manufacturing method thereof

The invention belongs to the technical field of biomedical engineering, especially relates to the technical field of bionic material preparation, discloses bionic cartilage based on 3D printing and amanufacturing method thereof, and includes bionic cartilage based on 3D printing and a method for manufacturing 3D printed bionic cartilage. The bionic cartilage based on 3D printing has a multilayerstructure, modified II type collagen, modified hyaluronic acid, nanometer nano-hydroxyapatite and cartilage cells are prepared by gradient bionic 3D printing. The bionic cartilage has good biologicalcompatibility, has mechanical properties equivalent to normal cartilage tissue, and is good for repairing defect parts of cartilage.
Owner:GUANGDONG TAIBAO MEDICAL DEVICE TECH RES INST CO LTD

Manufacturing method of gradient tissue engineering scaffold

The invention provides a manufacturing method of a gradient tissue engineering scaffold. The manufacturing method comprises the following steps: printing a biological high molecular material and hydrogel into three types of grids by utilizing a low-temperature deposition 3D (Three Dimensional) printer, so as to obtain a hierarchical structure which comprises a tangential grid corresponding to superficial-layer tangential fibers, a uniform grid corresponding to middle-layer transition fibers and a normal grid corresponding to bottom-layer normal fibers; forming a grid bracket, wherein the grid bracket has the mechanical strength characteristics that a compression resisting force is gradually increased from shallow to deep and an anti-shearing force is gradually reduced from shallow to deep; after printing, carrying out freeze drying on the grid bracket for a first time; adding a dECM (decellularized Extracellular Matrix) solution into pores of the formed grid bracket; carrying out freeze drying for a second time and removing a solvent component in the dECM solution, so as to obtain the composite gradient tissue engineering scaffold which is close to a normal cartilage directional micro-tissue. According to the manufacturing method, one-step molding of the gradient composite scaffold can be realized and a bionic effect is remarkably optimized; quantitative mechanical strength optimization can be carried out very well.
Owner:SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV

Preparation of multilayer cartilage complex containing cytokine microspheres through electrospinning 3D printing

The invention belongs to the technical field of cartilage complexes, in particular to preparation of multilayer cartilage complex containing cytokine microspheres through electrospinning 3D printing,which comprises the following steps of: S1, culturing seed cells; S2, preparing a three-phase integrated scaffold; S3, planting cells. According to the method, an electrostatic spinning 3D printing technology is adopted, the fiber diameter and the printing path can be accurately controlled, the diameter of a monofilament can be as fine as 10 micrometers, corresponding loaded cytokine microspheresare mixed in a printing material to be loaded on a printed bracket, by controlling the types and contents of the cytokines, the corresponding seed cells can be induced to differentiate to the corresponding cells on the scaffold layer by layer so as to finally form a component hierarchical structure similar to a normal cartilage tissue, the complex has a layered structure similar to the normal articular cartilage tissue, and has high structural precision; and the loaded cytokine is favorable for promoting cell proliferation and differentiation, and is favorable for repairing cartilage damage.
Owner:SHANGHAI NINTH PEOPLES HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE

Pharmaceutical composition containing sodium alginate and preparation method of pharmaceutical composition

The invention provides a pharmaceutical composition containing sodium alginate for cartilage tissue repairing. As an active ingredient of the composition, bone morphogenetic protein-4 transfected fat is derived from stem cells, sodium alginate and calcium chloride; by virtue of the composition, gaps filled between cartilage rods as well as between the cartilage rods and peripheral cartilages and subchondral bones are completely filled by regenerated tissues and mechanical properties similar to that of normal cartilage are guaranteed; full fusion of mosaic bones and cartilages with peripheral cartilages and subchondral bones is achieved, and joint function improvement and level recovery in postoperative patients are significantly improved; in addition, the invention also provides a preparation method of the pharmaceutical composition.
Owner:PEKING UNIV THIRD HOSPITAL +1

Constructing method of bracket-free engineering cartilaginous tissue and product thereof

InactiveCN101543644AWith normal chondrocytesUniform planting densityBone implantBiocompatibility ProblemCell type
The invention discloses a constructing method of a bracket-free engineering cartilaginous tissue and a product therefrom. The constructing method comprises the following steps: inducing and differentiating human umbilical mesenchymal stem cells into cartilaginous cells and then carrying out aggregation inducing culture so that the cartilaginous cells excrete stroma towards the outside of cells and form membranoid substance; continuously inducing and culturing the membranoid substance in a cell culture box and then transferring the membranoid substance into a centrifugal tube for inducing culture to form loose cartilaginous tissue agglomerate; and continuously inducing and culturing the loose cartilaginous tissue agglomerate in a rotating wall type bioreactor to obtain dense cartilaginous-like tissue. The cytology, the histology or the immunohistochemistry dyeing shows that the constructed engineering tissue has a normal cartilaginous cell type. The constructed bracket-free engineering cartilaginous tissue does not relate to the composite problem of the cells and an exogenous bracket, is absent from the biocompatibility problem between the cells and the bracket, is safe to human body, has even cell planting density and simple clinical application operation and can be applied to the treatment or the repair of cartilage loss.
Owner:GENERAL HOSPITAL OF PLA

Preparation method and application of composite hydrogel, composite hydrogel repair material and preparation method of composite hydrogel repair material

The invention provides a preparation method of a composite hydrogel. The preparation method comprises the following steps: S1) carrying out a reaction between chondroitin sulfate and a first acrylate monomer in a phosphate buffer solution to obtain a chondroitin sulfate acrylate hydrogel monomer; oxidizing the chondroitin sulfate acrylate hydrogel monomer to obtain an oxidized chondroitin sulfate acrylate hydrogel monomer; S2) under an ultraviolet radiation condition, carrying out a polymerization reaction between the oxidized chondroitin sulfate acrylate hydrogel monomer and a degradable hydrogel monomer through initiation of a photoinitiator so as to obtain the composite hydrogel. Compared with the prior art, a Schiff's base reaction of aldehyde groups contained in the oxidized chondroitin sulfate acrylate hydrogel monomer and amino groups existing in a tissue can be carried out, so that the adhesion of the tissue inside the body is more facilitated; moreover, the composite hydrogel contains normal cartilage tissue components, a novel cartilage tissue is easy to form quickly, and the composite hydrogel has potential application values in the aspect of clinical cartilage repair.
Owner:GUANGDONG UNIV OF TECH

Preparation of coaxial electrospun-containing multilayered cartilage complex by electrospinning 3D printing

The present invention belongs to the technical field of 3D printing and particularly discloses a preparation of a coaxial electrospun-containing multilayered cartilage complex by electrospinning 3D printing. The preparation comprises the following steps: S1, seed cell culturing; S2, three-phase integrated scaffold preparing; and S3, cell planting. The method uses the coaxial electrospinning 3D printing technology, can accurately control fiber diameter and printing path, and greatly improves printing precision compared with ordinary spray-type printing, diameter of monofilament can be as thin as 10 [mu]m, and besides, the coaxial spinning technology can obtain double-layer fibers containing cytokines in an inner layer, conducts layer-induction of corresponding seed cells to differentiate into cells in corresponding layers on the scaffold, and finally forms a layered structure similar to normal cartilage tissues. The complex obtained by the method has a layered structure similar to normal articular cartilage tissues and has high structural precision, and the loaded cytokines are favorable for promoting cell proliferation and differentiation, and beneficial to repair of cartilage damages.
Owner:SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE

Method for preparing hBMSCs/hyaline cartilage particle/calcium alginate gel compound and application thereof

The invention provides a method for preparing an hBMSCs / hyaline cartilage particle / calcium alginate gel compound. According to the method, the hBMSCs / hyaline cartilage particle / calcium alginate gel compound is prepared by using hyaline cartilage particles having a size of 0.125mm<3> after inducing culture is carried out on hBMSCs and is used for repairing defects on the cartilage surface, a strong subchondral bone support can be reconstructed, a complete and smooth articular cartilage surface can be recovered, the trabecular space of the subchondral bone can be filled, and seamless connection can be formed with adjacent defects. Due to the existence of the hyaline cartilage particles, partial normal-simulated cartilage extracellular matrix and partial normal cartilage cells can be formed in the repaired tissue, so that the reconstruction process can be accelerated, the repaired tissue strength on the surface can be enhanced, double effects can be achieved by adopting hBMSCs, and abrasion of the joint surface and regression near the joint surface can be retarded.
Owner:THE AFFILIATED HOSPITAL OF QINGDAO UNIV

Articular cartilage repairing material based on oxidized hyaluronic acid-type II collagen and autologous concentration bone marrow nucleated cells and preparation method

The invention relates to an articular cartilage repairing material based on oxidized hyaluronic acid-type II collagen and autologous concentration bone marrow nucleated cells and a preparation method.The articular cartilage repairing material is prepared from oxidized hyaluronic acid, type II collagen and autologous concentration bone marrow nucleated cells; the autologous concentration bone marrow nucleated cells in the material have potential in self-renewal and chondrogenic differentiation, participate in cartilage defect repairing, and thus realize a perfect cartilage defect repairing effect; the repaired tissue appears like hyaline cartilage and is obviously superior to the blank control group in surface flatness, integration degree with adjacent normal cartilage, content of type IIcollagen, GAG content, forms of calcified cartilage and subchondral bone and the like, and has potential in clinical transformation.
Owner:重庆市人民医院

Anatomical composite three-dimensional scaffold tissue engineering cartilage and preparation method thereof

InactiveCN104623735AUnique anisotropic alignment structureGood biomechanical propertiesProsthesisMicrosphereCartilage lesion
The invention relates to an anatomical composite three-dimensional scaffold tissue engineering cartilage and a preparation method thereof. According to the anatomical composite three-dimensional scaffold tissue engineering cartilage, a scaffold is made of polycaprolactone-hydroxyapatite composite material; IGF-1 PLGA microspheres are carried on the scaffold; and the adding amount of the IGF-1 PLGA microspheres is 0.1%-2% of the weigh of the scaffold. The novel three-dimensional porous scaffold prepared by the method has good biocompatibility and biodegradability and is free of cytotoxicity, can be gradually degraded along with regeneration of normal cartilage tissues after being implanted into a living body, and is finally replaced with regenerated cartilage, so that the target of thoroughly healing cartilage injuries is reached.
Owner:HANGZHOU CITY XIAOSHAN DISTRICT TRADITIONAL CHINESE MEDICAL HOSPITAL

Composition for regeneration of cartilage

A novel composition for regenerating a cartilage has been demanded, which can achieve a good effect of regenerating a hyaline cartilage that is a nearly normal cartilage without requiring the use of any transplanted cell. The present invention provides a composition for regenerating a cartilage, wherein (a) a monovalent metal salt of low endotoxin alginic acid and (b) SDF-1 are used in combination.
Owner:MOCHIDA PHARM CO LTD +1

Recombinant lentivirus for carrying out targeted induction on osteogenic differentiated cell apoptosis as well as preparation method and application thereof

The invention discloses recombinant lentivirus for carrying out targeted induction on the osteogenic differentiated cell apoptosis as well as a preparation method and application thereof. A recombinant lentivirus genome contains an Apoptin gene expression box which contains an Osterix gene promoter, an Apoptin gene and a terminator, and the Apoptin gene expression is regulated and controlled by the Osterix gene promoter; the recombinant lentivirus takes a pan-osteogenic cell peculiar expression gene Osterix promoter as a promoting element, expresses Apoptin for inducing the osteogenic differentiated cell apoptosis in osteogenic differentiated cells, does not play a role on chondrogenic differentiated cells and normal cartilage cells, can be prepared into medicines for inducing the osteogenic differentiated cell apoptosis, carries out the treatment on residual osteogenic differentiated cells in seed cells after the osteogenic induced differentiation treatment and ensures a single chondrogenic differentiation path of the seed cells, thereby providing a favorable seed cell for the establishment of tissue engineering cartilage; and the preparation method of the recombinant lentivirus is simple, convenient, rapid and low in cost.
Owner:ARMY MEDICAL UNIV

Constructing method of bracket-free engineering cartilaginous tissue and product thereof

InactiveCN101543644BUniform planting densityEasy to operateBone implantCartilage cellsStaining
The invention discloses a constructing method of a bracket-free engineering cartilaginous tissue and a product therefrom. The constructing method comprises the following steps: inducing and differentiating human umbilical mesenchymal stem cells into cartilaginous cells and then carrying out aggregation inducing culture so that the cartilaginous cells excrete stroma towards the outside of cells and form membranoid substance; continuously inducing and culturing the membranoid substance in a cell culture box and then transferring the membranoid substance into a centrifugal tube for inducing culture to form loose cartilaginous tissue agglomerate; and continuously inducing and culturing the loose cartilaginous tissue agglomerate in a rotating wall type bioreactor to obtain dense cartilaginous-like tissue. The cytology, the histology or the immunohistochemistry dyeing shows that the constructed engineering tissue has a normal cartilaginous cell type. The constructed bracket-free engineeringcartilaginous tissue does not relate to the composite problem of the cells and an exogenous bracket, is absent from the biocompatibility problem between the cells and the bracket, is safe to human body, has even cell planting density and simple clinical application operation and can be applied to the treatment or the repair of cartilage loss.
Owner:GENERAL HOSPITAL OF PLA

Composite structured tissue engineering cartilage graft and its preparation method

A tissue-engineered cartilage transplant with composite structure for treating the cartilage defect and surficial depressed defect is composed of the medically acceptable solid carrier with internal cavity, and the mixture of medically acceptable colloid and normal cartilage cells through filling said mixture in said cavity of biodegradable solid carrier.
Owner:北京市创伤骨科研究所

Repairing tool for articular cartilage injuries

The invention discloses a repairing tool for articular cartilage injuries. The repairing tool comprises a rod piece, the rod piece comprises a first section and a second section, the first section isused for receiving rotation driving, the end of the second section is provided with a spherical head, the repairing tool further comprises an annular elastic cover, and the end of the first section, the annular elastic cover and the end of the second section are sleeved in sequence; friction resistance between the annular elastic cover and the first section is set to be within a preset range, andwhen the resistance between the annular elastic cover and the first section is larger than the preset range, the portion between the annular elastic cover and the first section is idle. According to the repairing tool for the articular cartilage injuries, the two ends and middle of the rod piece are connected through the annular elastic cover, when the resistance is large, the annular elastic cover decouples transmission, in this way, through reasonable pressure selection, the spherical head can get rid of injured cartilages, and gets stuck when meeting normal cartilages, and thus the probability that normal cartilage tissue is gotten rid of is lowered.
Owner:NANJING GENERAL HOSPITAL NANJING MILLITARY COMMAND P L A

A kind of patella microfracture surgical device

ActiveCN108814675BEasy to fixAvoid iatrogenic injurySurgeryNormal cartilagePatellar cartilage
The invention discloses a patella microfracture surgery device. The patella microfracture surgery device comprises a first connecting rod, a second connecting rod and a hole puncher, wherein one end of the first connecting rod is provided with a first handle, the other end of the first connecting rod is provided with a patella bearing device attached to the upper part and / or side part of the patella, the second connecting rod is hinged to the first connecting rod, one end of the second connecting rod is provided with a second handle corresponding to the first handle, the hole puncher is arranged at the other end of the second connecting rod and comprises a hole driller and a spherical housing, the spherical housing is internally provided with a hole driller channel, and the hole driller channel is provided with an opening facing the patella bearing device and used for at least part of hole driller exposed and a punching drive mechanism for driving at least part of hole driller to be exposed out of the opening. The patella microfracture surgery device can stably and reliably fix the patella, can conveniently adjust the punching position and punching depth, can conduct microfracturepunching operation at any position of the cartilage face of the patella, is simple in operation and can avoid iatrogenic injury to the normal cartilage.
Owner:XIANGYA HOSPITAL CENT SOUTH UNIV

Cartilage defect repair module and method for forming same

ActiveCN111281608AMake up for the shortcomings of insufficient sourcesAchieve loadBone implantJoint implantsCartilage repairNormal cartilage
The invention discloses a cartilage defect repairing module and a forming method thereof. The forming method comprises the steps: obtaining mechanical parameters of normal cartilage; establishing a virtual model of a cartilage repair module according to the mechanical parameters of the normal cartilage; and forming a repairing module matched with the cartilage defect to be repaired by using a 3D printing method and the virtual model. The cartilage defect repair module formed by the method can be applied to the cartilage defect of a patient, can replace the cartilage of the patient, can achievethe effects of load bearing and intra-articular friction, can overcome the defect that cartilage repair grafts are insufficient in source, and is simple and convenient to transplant in an operation and reliable in effect.
Owner:PEKING UNIV FIRST HOSPITAL

Tissue engineering cartilage and preparation method thereof

The invention discloses a tissue engineering cartilage and a preparation method thereof. The tissue engineering cartilage is cytoactive, consists of sequentially laminated cell patches including a surface layer, a middle layer, a deep layer and a calcified layer, and takes collagen matrix as a main component; the layers are compounded by collagen and hyaluronic acid, and the bordering integration of various layers of cartilage structures is promoted through hydrostatic culture; and the tissue engineering cartilage is prepared by preparing various layers of cartilage cell patches and assembling multiple structural layers. The prepared tissue engineering cartilage is in a layering arrangement of a natural cartilage, has a very good tissue structure and very good mechanical properties (frictional coefficient is 75-85 percent that of a natural cartilage tissue, and the elastic modulus is 80-90 percent that of the natural cartilage tissue.); the integration between different layers is good; experiments prove that the prepared tissue engineering cartilage can form the tidal line same as that of a normal cartilage tissue and has the same layering structure; and the prepared tissue engineering cartilage is capable of promoting regeneration and function recovery of a cartilage and obviously shortening the cycle of cartilage damage treatment and is applicable to cartilage defect restoration for a load-bearing part of a articular cartilage.
Owner:SHAANXI BIO REGENERATIVE MEDICINE CO LTD

Application of psoralen to preparation of medicinal composition and medicinal composition

The invention provides a medicinal composition comprising psoralen as an active component, and the application of the psoralen to preparation of the medicinal composition for treating osteoarthritis.The medicinal composition comprises a therapeutically effective amount of psoralen and a pharmacologically acceptable excipient or carrier. The medicinal composition comprising the psoralen can promote secretion of a cartilage matrix, protect chondrocytes and maintain a normal cartilage tissue structure, so that the medicinal composition can effectively treat the osteoarthritis.
Owner:XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV

Preparation method and application of composite hydrogel, composite hydrogel repair material and preparation method thereof

The invention provides a preparation method of a composite hydrogel. The preparation method comprises the following steps: S1) carrying out a reaction between chondroitin sulfate and a first acrylate monomer in a phosphate buffer solution to obtain a chondroitin sulfate acrylate hydrogel monomer; oxidizing the chondroitin sulfate acrylate hydrogel monomer to obtain an oxidized chondroitin sulfate acrylate hydrogel monomer; S2) under an ultraviolet radiation condition, carrying out a polymerization reaction between the oxidized chondroitin sulfate acrylate hydrogel monomer and a degradable hydrogel monomer through initiation of a photoinitiator so as to obtain the composite hydrogel. Compared with the prior art, a Schiff's base reaction of aldehyde groups contained in the oxidized chondroitin sulfate acrylate hydrogel monomer and amino groups existing in a tissue can be carried out, so that the adhesion of the tissue inside the body is more facilitated; moreover, the composite hydrogel contains normal cartilage tissue components, a novel cartilage tissue is easy to form quickly, and the composite hydrogel has potential application values in the aspect of clinical cartilage repair.
Owner:GUANGDONG UNIV OF TECH

Application of circular RNA as osteoarthritis marker

ActiveCN113249464APlay a role in the prevention and treatment of OAMicrobiological testing/measurementSkeletal disorderDiseaseNucleotide
The invention belongs to the technical field of biomedicine and particularly relates to application of circular RNA as an osteoarthritis marker. The circular RNA is has_circ_0000423 and has a nucleotide sequence represented by SEQ ID NO: 1. According to the application, researches discover that compared with normal cartilage tissue, hsa_circ_0000423 is of high expression in cartilage tissue of an osteoarthritis sufferer, so that judgment on whether a testee has the high risk of suffering from osteoarthritis or not is contributed through detecting the content of the hsa_circ_0000423, and the significance in clinical auxiliary diagnosis and evaluation on the osteoarthritis is remarkable. Simultaneously, through further researching biological functions of cartilage cells, diagnosis and treatment values of the hsa_circ_0000423 during occurrence and development of OA are discovered, so that a critical theoretical basis and intervention target is provided for diagnosis and treatment on the disease, and thus, the circular RNA has an important potential value and a good application prospect.
Owner:GUANGDONG HOSPITAL OF TRADITIONAL CHINESE MEDICINE

A kind of bionic cartilage based on 3D printing and its manufacturing method

The invention belongs to the technical field of biomedical engineering, especially the technical field of bionic material preparation, and discloses a bionic cartilage based on 3D printing and a manufacturing method thereof, including a bionic cartilage based on 3D printing and a 3D printed bionic cartilage Manufacturing method. The 3D printing-based biomimetic cartilage is a multi-layer structure, which is prepared by gradient biomimetic 3D printing from modified type II collagen, modified hyaluronic acid, nano-hydroxyapatite and chondrocytes. The bionic cartilage has good biocompatibility and mechanical properties equivalent to normal cartilage tissue, and is beneficial to the repair of cartilage defect parts.
Owner:GUANGDONG TAIBAO MEDICAL DEVICE TECH RES INST CO LTD

A kind of preparation method of gradient tissue engineering scaffold

The invention provides a manufacturing method of a gradient tissue engineering scaffold. The manufacturing method comprises the following steps: printing a biological high molecular material and hydrogel into three types of grids by utilizing a low-temperature deposition 3D (Three Dimensional) printer, so as to obtain a hierarchical structure which comprises a tangential grid corresponding to superficial-layer tangential fibers, a uniform grid corresponding to middle-layer transition fibers and a normal grid corresponding to bottom-layer normal fibers; forming a grid bracket, wherein the grid bracket has the mechanical strength characteristics that a compression resisting force is gradually increased from shallow to deep and an anti-shearing force is gradually reduced from shallow to deep; after printing, carrying out freeze drying on the grid bracket for a first time; adding a dECM (decellularized Extracellular Matrix) solution into pores of the formed grid bracket; carrying out freeze drying for a second time and removing a solvent component in the dECM solution, so as to obtain the composite gradient tissue engineering scaffold which is close to a normal cartilage directional micro-tissue. According to the manufacturing method, one-step molding of the gradient composite scaffold can be realized and a bionic effect is remarkably optimized; quantitative mechanical strength optimization can be carried out very well.
Owner:SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV

Methods of treatment and diagnosis of tumours

PendingUS20220065865A1Organic active ingredientsAntineoplastic agentsBenign bone tumoursRUNX2
The invention relates to a method of treating a cartilage matrix-forming bone tumour and / or a metastatic cancer originating from a cartilage matrix-forming bone tumour, for example chondrosarcoma, in which one or more of an inhibitor of RUNX2 activity, an inhibitor of RUNX2 expression, an inhibitor of YBX1 activity and an inhibitor of YBX1 expression, is administered to a subject in need thereof. The invention also relates to an in vitro method for detecting the presence of a cartilage matrix-forming bone tumour in a subject or the risk of a subject developing a cartilage matrix-forming bone tumour, for example chondrosarcoma, in which the following steps are performed: (i) measuring the expression level of at least one of RUNX2 and YBX1 in a biological sample obtained from a subject, and (ii) comparing the expression level of RUNX2 and / or YBX1 in the biological sample obtained from the subject with the respective expression level of RUNX2 and / or YBX1 in normal cartilage or other biological material. A higher expression level of RUNX2 and / or YBX1 in the biological sample obtained from the subject compared to the respective expression level of RUNX2 and / or YBX1 in the normal cartilage or other biological material indicates the presence of or an increased risk of developing a cartilage matrix-forming bone tumour.
Owner:UEA ENTERPRISES

High-frequency rheology system

Rheology system. The system includes a first piezoelectric actuator assembly for providing microscale displacement of a sample and a second piezoelectric actuator assembly for oscillating the sample at a nano / micro scale displacement in a selected frequency range extended significantly as compared to the frequency range available on the commercial AFMs. A preferred sample is cartilage and the disclosed system can distinguish between normal cartilage and GAG-depleted cartilage.
Owner:MASSACHUSETTS INST OF TECH
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