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167 results about "Mitochondrial targeting" patented technology

Non-viral delivery of compounds to mitochondria

A conjugate comprises: (a) a mitochondrial membrane-permeant peptide; (b) an active agent or compound of interest such as a detectable group or mitochondrial protein or peptide; and (c) a mitochondrial targeting sequence linking said mitochondrial membrane-permeant peptide and said active mitochondrial protein or peptide. The targeting sequence is one which is cleaved within the mitochondrial matrix, and not cleaved within the cellular cytoplasm, of a target cell into which said compound is delivered. Methods of use of such compounds are also described.
Owner:WAKE FOREST UNIV

Hydrogen sulfide molecule fluorescent probe with mitochondrial targeting and two-photon property as well as preparation method and application of hydrogen sulfide molecule fluorescent probe

The invention discloses a hydrogen sulfide molecule fluorescent probe with mitochondrial targeting and a two-photon property as well as a preparation method and application of the hydrogen sulfide molecule fluorescent probe, and belongs to the technical field of analytical chemistry. A molecular formula of the probe is C35H29N5O3PBr, and a structural formula of the probe is shown in a formula I (shown in the description). The hydrogen sulfide molecule fluorescent probe prepared by the preparation method disclosed by the invention is simple in preparation and matured in synthetic route, can be used for quickly and accurately detecting hydrogen sulfide of mitochondria in cells, can perform fluorescence imaging, and is applied to sensing detection of hydrogen sulfide in a water environment and a biological cell system. Besides, the probe has the characteristics of good selectivity, high response speed, high capability of resisting jamming of other molecules, and the like.
Owner:UNIV OF JINAN

Two-photon fluorescent probe capable of targeting mitochondria and preparation method and application of probe

ActiveCN109970630AIntense two-photon excited fluorescenceGood aggregation-induced luminescence effectOrganic chemistryPhotodynamic therapyO-Phosphoric AcidFluorescence
The invention discloses a two-photon fluorescent probe capable of targeting mitochondria and a preparation method and application of the probe. The structure of the two-photon fluorescent probe is shown as a formula I, wherein R represents a conjugated structure, R' represents alkyl or aryl, R'' represents hydrogen, methyl or methoxy, X represents halogen anions or bi-trifluoromethane sulfonimideanions or hexafluoro-phosphoric acid anions or tetra-fluoroboric acid anions or trifluoromethanesulfonic acid anions. The compound has stronger two-photon excitation fluorescence, a good aggregation-induced luminescence effect, a great mitochondrial targeting function and excellent photoinduced singlet oxygen generation capability.
Owner:SICHUAN UNIV

Mitochondrial targeting and therapeutic use thereof

The present invention provides, among other things, compositions and methods for treatment of Friedrich's Ataxia based on effective targeting of a therapeutic moiety to mitochondria that can substitute for natural FXN protein activity or rescue one or more phenotypes or symptoms associated with frataxin-deficiency. In some embodiments, the present invention provides a targeted therapeutic comprising a therapeutic moiety, which is a polypeptide having an N-terminus and a C-terminus, a mitochondrial targeting sequence associated with the therapeutic moiety at the N-terminus, and a mitochondrial membrane-penetrating peptide associated with the therapeutic moiety at the C-terminus, wherein the therapeutic moiety is targeted to mitochondria upon cellular entry.
Owner:TAKEDA PHARMA CO LTD

Medical application of berberine derivative

The invention provides application of a compound shown in the formula (I) or a salt thereof in the aspects of preparing of medicines for treating malignant glioma or a mitochondrial targeting drug delivery system, and in the formula (I), R is C10-C18 alkyl, or R is benzyl. The experiments find that compared with a control, a berberine derivative not only can more effectively inhibit glioma cell proliferation, and can also effectively inhibit the migration and invasion ability of cells. In addition, the compounds can be well positioned to mitochondria, so that the compounds can be used as the mitochondrial targeting drug delivery system.
Owner:SUN YAT SEN UNIV

Near infrared laser-driven mitochondrial targeting fluorescent polymer and preparation method and application thereof

ActiveCN107033283ALow optical damageGood optical damagePhotodynamic therapyPharmaceutical non-active ingredientsMethacrylateAcrylonitrile
Disclosed is a near infrared laser-driven mitochondrial targeting fluorescent polymer and a preparation method and application thereof. A nano-scale photosensitizer, which is prepared from a polymer of poly-(2Z, 2'Z)-3,3'-(2, 5-bis(diphenylamino)-1, 4-phenyl) bis(2-(3, 5-bis(trifluoromethyl) phenyl) acrylonitrile-copolymer (N-(2-hydroxypropyl) methacrylamide)-copolymer (2-dimethylamino ethyl methacrylate) and an inorganic upconversion nano-scale particle of ytterbium and thulium codoped sodium yttrium fluoride in aqueous solution; when irradiated by laser of a wavelength of 980 nm, the nano-scale photosensitizer can produce reactive oxygen to effectively kill cells. The invention provides a novel and effective nano-scale photosensitive material for research and application of photodynamic therapy of tumor cells in the future.
Owner:深圳市丰用实业集团有限公司

Water soluble mitochondrial targeting imaging probe and preparation method thereof

The invention discloses a water soluble mitochondrial targeting imaging probe and a preparation method thereof. The structural formula of compounds that form the water soluble mitochondrial targeting imaging probe can be formula (I), (II), (III), (IV), (V), or (VI). The water soluble mitochondrial targeting imaging probe has the characteristics of good water solubility, high resistance to photo-bleaching, high thermal stability, low toxicity, and high sensitivity. Hela, MCF-7, and NIH-3T3 cells are taken as the models to observe the distribution situation of the fluorescent probe in cells through a laser con-focal microscopy technology; the results show that the probe is mainly distributed in mitochondrial, and the targeting property is good. The test results show that the provided probe has the characteristic of strong mitochondrial targeting imaging performance on cancer cells and non-cancer cells; thus an effective means is provided for quantitatively research superoxide radicals in cells in time and space, and thus the pathologic and physiological mechanisms of active oxygen radicals can be researched.
Owner:INST OF CHEM CHINESE ACAD OF SCI

Fluorescent viscosity probes with aggregation-induced luminescence properties

The present invention relates to fluorescent viscosity probes with aggregation-induced luminescence properties, applications of the probes in solution viscosity detection, glucose concentration determination, viscosity (free volume) change monitoring during polymerization, and viscosity measurement in cells or mitochondria, and an application method. The probes may consist of one or more aggregation-induced luminescence fluorophores. Compared with commercial DCVJ, the probes have higher viscosity sensitivity. The probes are two-photon-excitable and have specific mitochondrial targeting properties so that the probes can be applied in biological research. In addition, the probes can be used for indicating mitochondrial membrane potentials, quantitatively measuring low-concentration proteins,bacterial imaging, mechanical force-induced fluorescence discoloration materials, and other applications.
Owner:THE HONG KONG UNIV OF SCI & TECH

Cyclometalated iridium (III) complex and preparation method and application thereof in living cell mitochondria dyeing

The invention discloses a novel cyclometalated iridium (III) complex and a preparation method and an application thereof in living cell mitochondria dyeing. A cationic portion of the novel cyclometalated iridium (III) complex has the structural formula represented by the formula I. The synthesized cyclometalated iridium (III) complex is stable in structure, good in photophysical and photochemical properties and low in cytotoxicity, exhibits a good mitochondrial targeting function, and is a novel living cell mitochondria two-photon fluorescent probe. A study indicates that the complex has the optical stability and the two-photon absorption cross section which are obviously superior to those of commercial mitochondrial dyes, and is a potential excellent two-photon mitochondrial dye.
Owner:SUN YAT SEN UNIV

Cell oncosis induction iridium complexes, and preparation method and antitumor application thereof

The invention discloses cell oncosis induction cyclometallated iridium complexes, and a preparation method and an antitumor application thereof. The structural formula of the cyclometallated iridium complexes is shown in the description. The cyclometallated iridium complexes have very strong growth inhibition ability to various human cancer cells comprising drug-resistant strains, and the action mechanism is based on a new mechanism for inducing cell oncosis not apoptosis based on mitochondrial targeting not traditional nuclear targeting. The complexes overcome the defect of the drug resistance of tumor cells during tumor therapy, and have very good application prospect in the development of high-efficiency antitumor drugs.
Owner:SUN YAT SEN UNIV

Phosphorescent iridium complex probe having mitochondrial targeting function as well as preparation and application thereof

The invention relates to a phosphorescent iridium complex probe having a mitochondrial targeting function as well as a preparation method and an application thereof, in particular to a phosphorescent iridium complex probe containing a mitochondrial targeting group and a ClO<-> recognition group as well as an application of the probe, and belongs to the technical field of organic photoelectric functional materials. The complex material comprises an oxime group-containing cyclometalated ligand, a metal center and an N^N ligand of the mitochondrial targeting group containing triphenylphosphine and has the general structural formula shown in the specification. Material synthesis steps are simple, material synthesis conditions are mild, and the probe has very good application prospect in ClO<-> detection, mitochondrial targeting imaging and biological marking.
Owner:NANJING UNIV OF POSTS & TELECOMM

Preparation and application of mitochondrial-targeting self-assembled protein nanoparticles

The invention relates to mitochondrial-targeting protein nanoparticles, and relates to an amino acid sequence, a coding nucleic acid sequence, a vector of the coding nucleic acid, host expression bacteria and other related information. Under the induction of metal ions, the self-assembled protein nanoparticles can be obtained by an escherichia coli expression system. The protein nanoparticles canbe applied in cancer diagnosis and treatment. Compared with conventional mitochondrial-targeting small molecules (TPP, MPP and the like), the protein nanoparticles can achieve properties of tumor enrichment, mitochondrial targeting, causing of increase of the ROS content in cells, induction of cell apoptosis, inhibition of tumor growth and the like.
Owner:PEKING UNIV

Preparation method and application of phosphorescence iridium complexes with mitochondrial targeting function

The invention discloses phosphorescence iridium complexes with a mitochondrial targeting function, and a preparation method thereof, and an application thereof in biological imaging and oxygen detection. The complexes are composed of a cyclic metal ligand, a metal center and an auxiliary ligand containing a mitochondrial targeting function group, and the structure of the complexes is represented by a general formula shown in the description; the luminous intensity and the emission life of the complexes reduce with the increase of the oxygen concentration; mitochondria of living cells are marked; the change of the concentration of oxygen in the mitochondria of living cells is detected through a confocal imaging and life imaging technology; and the phosphorescence iridium complexes have important application prospect in biological imaging and sensing fields.
Owner:NANJING UNIV OF POSTS & TELECOMM

Organic AIE photosensitive probe with mitochondrial targeting and preparation method and application thereof

The invention provides an organic AIE photosensitive probe with mitochondrial targeting and a preparation method and application thereof, and belongs to the technical field of antitumor drugs. The organic AIE photosensitive probe with mitochondrial targeting has a structure as shown in the following formula I in the specification. According to the organic AIE photosensitive probe, mitochondrial ROS oxidative stress is triggered, a large amount of calreticulin translocation is induced to be generated, the immunogenicity of tumor cells is effectively improved, and lasting anti-tumor immune response of an organism is triggered. Therefore, the organic AIE photosensitive probe is applied to preparation of drugs for tumor cell immune response or preparation of reagents for triggering the mitochondrial ROS oxidative stress and inducing generation of calreticulin transposition.
Owner:浙江义氪生物科技有限公司

Self-oxygen-supply hollow Prussian blue nanoparticle as well as preparation method and application thereof

The invention discloses a self-oxygen-supply hollow Prussian blue nanoparticle and a preparation method and application thereof. The self-oxygen-supply hollow Prussian blue nanoparticle is provided with a hollow Prussian blue nanoparticle body, hemoglobin and IR783 are loaded on a mesoporous shell layer and an internal hollow structure of the hollow Prussian blue nanoparticle body, the drug loading capacity of the hemoglobin is 61.5%-63.5%, and the drug loading capacity of the IR783 is 24.2%-27.5%. The self-oxygen-supply hollow Prussian blue nanoparticle loaded with hemoglobin and IR783 prepared by the invention can improve the condition of insufficient oxygen supply in photodynamic therapy; in addition, since the half-life period of active oxygen generated by the photodynamic therapy is very short and the active oxygen is effective only in a relatively short distance, loading of IR783 with a mitochondrial targeting function is conducted in the invention, the self-oxygen-supply hollow Prussian blue nanoparticle body loaded with hemoglobin and IR783 is conveyed to mitochondria, so a mitochondrial function is destroyed, photodynamic therapy effect is remarkably improved, and tumor cell apoptosis is promoted.
Owner:HUAQIAO UNIVERSITY

IR-780 iodide-chitosan stearic acid grafted substance as well as preparation and application thereof

The invention provides an IR-780 iodide-chitosan stearic acid grafted substance. Triethylamine is used as an acid-binding agent, IR-780 iodide is grafted to the chitosan stearic acid grafted substance, and the IR-780 iodide-chitosan stearic acid grafted substance with a mitochondrial targeting function is obtained. An antitumor drug adriamycin is encapsulated through a dialysis method, and a mitochondrial targeting IR-780 iodide-chitosan stearic acid grafted substance drug-carrying micelle is obtained. The drug-carrying micelle provided by the invention has a mitochondrial high-efficiency targeting function, the encapsulated drug adriamycin can be rapidly released in a tumor cell mitochondria after being subjected to near infrared laser radiation, leakage of adriamycin in a normal tissue and a non-targeting part is reduced, the toxic and side effects of adriamycin are decreased, the concentration of adriamycin in the tumor cell mitochondria is increased, a tumor cell is induced to be apoptotic, and thus the anti-tumor efficacy is improved.
Owner:ZHEJIANG UNIV

Curcumin micelle eye drop and preparation method thereof

The invention discloses a curcumin micelle eye drop. The eye drop comprises curcumin as a main drug, an antiseptic, an isotonic regulator, and also comprises a polyethylene caprolactam-polyvinyl acetate-polyethylene glycol copolymer as a drug adjuvant, and dequalinium chloride as a mitochondrial targeting modifier and a stabilizer, a mass ratio of the curcumin main drug to the polyethylene caprolactam-polyvinyl acetate-polyethylene glycol block copolymer drug adjuvant is 1:12-1:20, and a mass ratio of dequalinium chloride to the polyethylene caprolactam-polyvinyl acetate-polyethylene glycol copolymer drug adjuvant is 1:20-1:40. The administration concentration of the curcumin micelle eye drop prepared in the invention can reach 5mg / ml, and the eye drop has the advantages of small micelle particle size, uniform distribution range, good drug stability, reduction of the administration irritation, improvement of the drug absorption of cornea, reduction of the administration concentration, prolongation of the action time of the drug, reduction of the administration frequency, improvement of the patient compliance, and very good economy.
Owner:SHANDONG EYE INST

Preparation method of fluorescence resonance system for rapid detection of ATP in mitochondria

The invention provides a preparation method of a fluorescence resonance system for rapid detection of ATP in mitochondria. The method comprises the following steps: step 1, providing a Cy3 fluorescence-labeled ATP-aptamer and an MTS sequence; step 2, performing a coupling reaction for QDs with a complementary strand of the ATP-aptamer and the MTS to obtain QDs molecular probes, wherein QDs is water-soluble quantum dots on carboxyl surface (COOH-QDs) and has a concentration of 1 [mu]M; and step 3, reacting the QDs molecular probes obtained in step 2 with the Cy3 fluorescence-labeled ATP-aptamer to obtain the fluorescence resonance system after interaction of the ATP aptamer and the complementary strand. According to the invention, the method utilizes characteristics of specific binding of the ATP and the aptamer thereof as well as a resonance energy transfer technology, and thus realizes rapid detection of the ATP and also realizes real-time monitoring for changes of ATP concentration in mitochondrial through specific transmembrane peptides-mitochondrial targeting fusion sequence (MTS), thereby providing a novel method for detection and monitoring of the ATP in vitro and in vivo.
Owner:XI AN JIAOTONG UNIV

Tumor mitochondrial targeting magnetic nanoprobe, and preparation method and application thereof

The invention provides a tumor mitochondrial targeting magnetic nanoprobe, and a preparation method and an application thereof. In the preparation method of the tumor mitochondrial targeting magneticnanoprobe provided by the invention, cyanine dye molecules are compounded on the surface of Fe3O4 nanoparticles by covalent crosslinking, so that the prepared nanoprobe has good stability, monodispersity and good biocompatibility and targeting effect, and can be used not only in biological in-vivo imaging, but also as tumor diagnostic and therapeutic preparations, carriers and magnetic separationmaterials. At the same time, the preparation method is simple in process and suitable for promotion and large-scale production.
Owner:SHENZHEN INST OF ADVANCED TECH

Berberine derivative and use thereof

The invention provides a compound shown in the formula (I) or a salt thereof and use of the compound and the salt, and R is C10-C18 alkyl or benzyl. The growth inhibition, growth inhibition, and invasion inhibition of the compound and the salt on malignant glioma cells are surprisingly better than that of a berberine derivative and berberine self. In addition, the compounds can be well positioned to mitochondria, so that the compounds can be used as a mitochondrial targeting drug delivery system.
Owner:SUN YAT SEN UNIV

Triphenylphosphine modification-based mitochondrion targeted melatonin as well as preparation method and application thereof

The invention belongs to the field of biological medicines, and relates to mitochondrial targeting melatonin as well as a preparation method and application thereof, in particular to triphenylphosphine modification-based mitochondrial targeting melatonin as well as a preparation method and application thereof. The triphenylphosphine-melatonin synthesized by the preparation method provided by the technical schemes of the invention is a drug which takes mitochondria as a target and has an antioxidant effect, and can relieve and treat mitochondrial dysfunction, so as to regulate mitochondria-mediated cell damage. The compound in the technical schemes can be used as a mitochondrial targeted antioxidant drug, can be used for preventing and treating mitochondrial toxicity caused by environmentalor occupational harmful factors such as heavy metals, and can also be used for treating and relieving cell damage caused by mitochondrial oxidative stress.
Owner:重庆医药高等专科学校附属第一医院 +1

Stimuli-responsive astaxanthin nanoparticles, preparation method thereof and application of stimuli-responsive astaxanthin nanoparticles to directions of mitochondrial targeting and colitis relieving

PendingCN112587503AProtects from the extreme environment of gastric acid escapeEnhanced set release rateOrganic active ingredientsFood freezingAstaxanthinMouse Colon
The invention discloses astaxanthin nanoparticles as well as a preparation method and application thereof. The astaxanthin nanoparticles comprise 58%-68% w/w of casein, 7%-11% w/w of a chitosan-TPP compound, 24%-28% w/w of sodium alginate and 0.5%-7% w/w of astaxanthin. According to the astaxanthin nanoparticles, casein I is used for primary embedding of the astaxanthin, the chitosan-TPP compoundand the sodium alginate are further subjected to layer-by-layer self-assembly through electrostatic interaction, and pH response type and mitochondrial targeting type nanoparticles are constructed andformed. According to the method, gastric acid escape can be achieved, the release rate of the astaxanthin in intestinal tract is increased, compared with the mode that free astaxanthin can be concentrated and enriched in the colons of mice, the colitis of the mice is relieved, and the targeting effect on cell mitochondria is achieved, the embedding protection mode of the method constructs a functional characteristic nanometer carrying system, and the absorption and utilization degree of nutrients is fully improved.
Owner:DALIAN POLYTECHNIC UNIVERSITY

Research on preparation and application of graphene quantum dots used for nuclear imaging and mitochondrial imaging

The invention discloses graphene quantum dots used for targeting nuclear imaging and mitochondrial imaging. According to the invention, polyethyleneimine (PEI) and 1,3,6-trinitropyrene are subjected to a reaction under hydrothermal reaction conditions so as to form PEI-modified graphene quantum dots (GQDs-PEI) used for nuclear targeting imaging. Based on the constructed GQDs-PEI, 4-carboxybutyltriphenylphosphonium bromide (TPP) is grafted onto the surfaces of GQDs-PEI by an amidation reaction so as to construct GQDs-TPP used for mitochondrial targeting imaging. The invention provides preparation methods and application of GQDs-PEI and GQDs-TPP. The invention has the following beneficial effects: nanotechnology is used for preparing the GQDs-PEI and the GQDs-TPP which are respectively usedfor nuclear targeting imaging and mitochondrial targeting imaging; the preparation methods are simple in process, free of special equipment requirements, friendly to environment, low in cost and capable of realizing large-scale preparation; and the GQDs-PEI and GQDs-TPP of the invention have good biocompatibility and optical properties, and can realize specific targeting imaging of cell nucleusesand mitochondria.
Owner:LANZHOU UNIVERSITY

Mitochondrial function protecting agent, preparation method therefor and application thereof

The present invention relates to a mitochondrial function protecting agent shown in formula (I), a preparation method therefor and applications thereof to the treatment of Parkinson disease and Alzheimer disease, wherein R1, R2, R3, R4 are independently selected from -NO2, -OH, -F, -CL, -Br, -H, -OCH3 and -CH3; and n=1-9. The mitochondrial function protecting agent provided by the present invention uses triphenyl phosphine cationic as a structural unit, is bound to an antioxidant component (nitroxyl radical unit) by covalent bonds, and drives an entire molecule to be rapidly enriched in the mitochondrion in a potential-dependent manner under the driving of cell membrane potential and mitochondrial membrane potential, thereby realizing mitochondrial targeting of new drug molecules .
Owner:FOURTH MILITARY MEDICAL UNIVERSITY

Cross-linkable mitochondrial targeting pegylated phospholipid medicinal material and preparation method and application thereof

The invention discloses a cross-linkable mitochondrial targeting pegylated phospholipid medicinal material. Please see the structural formula of the cross-linkable mitochondrial targeting pegylated phospholipid medicinal material in the specification, wherein n is equal to 10, 12, 14 and 16. The preparation method includes the steps that fatty acid acyl phosphatidylethanolamine-polyethylene glycol(peg)-maleimide, polypeptide D- (KLAKLAK)2-C5 and organic base serve as raw materials, and the molecular ratio of the polypeptide to the organic base to the fatty acid acyl phosphatidylethanolamine-polyethylene glycol(peg)-maleimide is (1-3): (1-3):1; under protection of nitrogen, the fatty acid acyl phosphatidylethanolamine-polyethylene glycol(peg)-maleimide, the organic base and a first solvent are mixed so that a first solution can be obtained, the polypeptide is dissolves in a second solvent so that a second solution can be obtained, the first solution and the second solution are mixed, and a mixed solution is stirred to react for 12-8 h at the temperature of 20-40 DEG C. Medicine carrying liposome prepared from the medicinal material can further improve the tumor treatment effect, the toxic and side effects are reduced, and long-time preservation is facilitated.
Owner:SICHUAN UNIV

Viscosity fluorescent probe with mitochondrial targeting function as well as preparation method and application thereof

The invention discloses a viscosity fluorescent probe with a mitochondrial targeting function as well as a preparation method and application thereof. The structural formula of the fluorescent probe is shown in the specification. The preparation method comprises the following steps: dissolving 5-methyl-3-(2'-benzothiazolyl)-4-hydroxybenzaldehyde and 2-pyridylacetonitrile onium iodide into absoluteethyl alcohol, adding piperidine, heating and refluxing the mixture for 6 hours, cooling, filtering, precipitating, and recrystallizing the solid with ethanol to obtain a yellow solid, namely the probe (Z)-2-(2-(3-(2-benzothiazolyl)-4-hydroxy-5-methylphenyl)-1-cyanovinyl)-1-methylpyridine-1-iodide. The fluorescent probe has the advantages of excellent viscosity detection performance, excellent anti-interference capability and good mitochondria targeting positioning function, can be used for monitoring the viscosity change of mitochondria, cells, animal tissues and organs and mouse living bodies, and has a wide application prospect in the field of organism viscosity detection.
Owner:BOHAI UNIV
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