68 results about "Cynomolgus macaque" patented technology

This invention relates to anti-CD40 antibodies or antigen-binding fragments thereof that specifically recognize and weakly activate CD40 molecules in humans, cynomolgus monkeys, and mice, as well as immunoconjugates, pharmaceutical compositions, and combination products comprising said anti-CD40 antibodies or antigen-binding fragments thereof. The invention also relates to nucleic acids encoding said anti-CD40 antibodies or antigen-binding fragments thereof and host cells comprising said nucleic acids, and methods for preparing said anti-CD40 antibodies or antigen-binding fragments thereof. Furthermore, the invention relates to the use of said anti-CD40 antibodies or antigen-binding fragments thereof in the prevention or treatment of tumors or infectious diseases in subjects.

The invention belongs to the field of immunotoxicology, and particularly relates to a method for immunotyping bone marrow cells by flow cytometry. The flow cytometry immune typing method for bone marrow cells comprises the following steps: collecting macaca fascicularis bone marrow fluid, and preparing the macaca fascicularis bone marrow fluid into single-cell suspension; dyeing the obtained cells by using an antibody combination containing a plurality of fluorescent labels; then, a flow cytometer is used for collecting cell fluorescence signals, a standardized gate setting strategy is executed, and based on collected data, the percentage of each cell subset in CD45 + living white blood cells is calculated to complete immune typing. According to the flow cytometry immune typing method for the bone marrow cells, the problems of low efficiency, low repeatability, low sensitivity and poor specificity of related technologies are solved, and more accurate and reliable data support is provided for early discovery, risk assessment and mechanism research of drug immunotoxicity.

The present invention relates to an isolated antibody or antigen-binding fragment thereof that binds to human A2AP. The isolated antibody or antigen-binding fragment according to the present invention i) cross-reacts with rabbit and / or cynomolgus A2AP, ii) does not inhibit human plasmin activity, and iii) increases plasmin mediated clot lysis in the presence of A2AP.

The invention belongs to the technical field of biological medicine and immunology, and particularly relates to a single-domain antibody targeting PD-L1 cross binding of human and cynomolgus monkeys and application of the single-domain antibody. The single-domain antibody disclosed by the invention has the specificity of resisting PD-L1 of human and cynomolgus monkeys, and shows relatively strong binding efficacy in the binding detection of PD-L1 target protein or PD-L1 overexpression cells; in the detection of blocking PD-1 / PD-L1 functions, a part of the single-domain antibodies even show a blocking effect which is obviously superior to that of Atezolizumab, so that the single-domain antibodies prepared by the invention can be used for diagnosis, treatment and prognosis detection of PD-L1 positive tumors. Meanwhile, the single-domain antibody disclosed by the invention has cross-species cross binding capacity, can be directly used for preclinical pharmacodynamics and safety evaluation, does not need to develop a species-specific substitution antibody, and realizes'one target and double effects'.

The present invention is directed to selected anti-PD-1 antibodies capable of binding to both cynomolgus monkey PD-1 and to human PD-1: PD-1 mAb 1, PD-1 mAb 2, PD-1 mAb 3, PD-1 mAb 4, PD-1 mAb 5, PD-1 mAb 6, PD-1 mAb 7, PD-1 mAb 8, PD-1 mAb 9, PD-1 mAb 10, PD-1 mAb 11, PD-1 mAb 12, PD-1 mAb 13, PD-1 mAb 14, or PD-1 mAb 15, and to humanized and chimeric versions of such antibodies. The invention additionally pertains to PD-1-binding molecules that comprise PD-1 binding fragments of such anti-PD-1 antibodies, immunocongugates, and to bispecific molecules, including diabodies, BiTEs, bispecific antibodies, etc., that comprise (i) such PD-1-binding fragments, and (ii) a domain capable of binding an epitope of a molecule involved in regulating an immune check point present on the surface of an immune cells. The present invention also pertains to methods of using molecules that bind PD-1 for stimulating immune responses, as well as methods of detecting PD-1.

The invention belongs to the field of biological medicine, and relates to an anti-IL-31 antibody, and a pharmaceutical composition and application thereof. Specifically, the invention relates to an anti-IL-31 monoclonal antibody or an antigen binding fragment thereof. The antibody has high affinity with human IL-31 and cynomolgus monkey IL-31, can effectively block the combination of IL-31 and its receptor IL-31RA, reduces or eliminates downstream STAT3 phosphorylation signals in cells, significantly inhibits pruritus caused by IL-31, and has good application prospects.

Provided herein are antibodies or antigen-binding portions thereof that bind to STEAP1 and uses thereof. The antibody provided by the invention can be combined with STEAP1 of human, cynomolgus monkeys or mice, and the antibody provided by the invention has good affinity and internalization effect, and has the potential of preparing anti-tumor ADC drugs.

This invention relates to the field of molecular marker screening technology, specifically to a SNP combination and method for paternity testing in cynomolgus monkeys. The method provided by this invention utilizes 100 selected specific SNP combinations (SNP1~SNP100) combined with low-depth sequencing for paternity testing in cynomolgus monkeys. The cost per sample is only 1 / 5 to 1 / 10 of existing high-depth sequencing and 1 / 2 of SNP chips. For large-scale experimental monkey populations (such as populations of thousands), this can save hundreds of thousands of yuan in testing costs annually, significantly reducing the economic burden of breeding and management of experimental monkeys, demonstrating extremely high economic efficiency. The method provided by this invention is applicable to cynomolgus monkey population pedigree management, kinship tracing, breeding pair optimization, and genetic quality control, and can be widely applied in experimental monkey breeding farms, primate research centers, and biomedical research institutions.

The utility model relates to the technical field of machin fixing instruments, in particular to a machin cage inner head fixing tool which comprises a rod body, a pipe sleeve used for connection is integrally constructed on the surface of the bottom end of the rod body, a stud is installed in the pipe sleeve in a screwed mode, and a ring body used for fixing the head of a machin is integrally constructed at the end, away from the pipe sleeve, of the stud. When the cynomolgus monkey is examined and treated, firstly, the cynomolgus monkey cage can be used for fixing the cynomolgus monkey, the rod body is taken through the handle, the ring body at the bottom of the rod body can correspond to the head of the cynomolgus monkey, and the ring body is similar to a circle, so that the contact area with the head of the cynomolgus monkey can be increased, and fixing is firmer; the body and the head of the cynomolgus monkey can be fixed at the same time in cooperation with the animal limiting and fixing function of the animal cage, meanwhile, the stud on the outer side of the ring body is screwed with the pipe sleeve at the bottom of the rod body, the ring body can be conveniently disassembled and assembled, and the ring body of the corresponding specification can be conveniently replaced for use according to the specification of the cynomolgus monkey.

Antibodies are provided which bind human and Macaca fascicularis CEACAM5 proteins, as well as isolated nucleic acids, vectors and host cells comprising a sequence encoding the antibodies. Also provided are immunoconjugates comprising the antibodies conjugated or linked to a growth-inhibitory agent, and to pharmaceutical compositions comprising the antibodies, or immunoconjugates. The antibodies or immunoconjugates are used for the treatment of cancer or for diagnostic purposes.

The present invention belongs to the field of biomedicine, and relates to an anti-IL-31 antibody, a pharmaceutical composition thereof and the use thereof. Specifically, the present invention relates to an anti-IL-31 monoclonal antibody or an antigen-binding fragment thereof. The antibody of the present invention has a high affinity for human IL-31 and cynomolgus monkey IL-31, can effectively block the binding of IL-31 to the IL-31RA receptor thereof, can reduce or eliminate intracellular downstream STAT3 phosphorylation signals and significantly inhibit pruritus caused by IL-31, and has good application prospects.

The application provides a non-pH-dependent long-acting anti-serum albumin nanobody and an application thereof. Specifically, the application provides amino acid sequences of VHH chain framework regions FR and complementarity determining regions CDR of the non-pH-dependent long-acting anti-serum albumin nanobody. The application also provides nucleotide sequences encoding the nanobody. The anti-serum albumin nanobody provided by the application can bind to human, mouse, rat and cynomolgus serum albumin under different pH conditions, and can significantly prolong the half-life of a protein drug, thereby providing a research basis for long-acting protein drug development.

The present disclosure relates to an antibody or antigen-binding portion thereof that binds to TSLP protein, and methods of making and using the same. The antibody can bind to human TSLP and / or cynomolgus monkey TSLP with high affinity, can block the binding of TSLP to TSLPR, and can inhibit the transduction of TSLP-stimulated signals through the STAT5 pathway.

The invention provides a method for detecting subtype pSTAT4 and Ki67 signals of peripheral blood T lymphocytes of machin through flow cytometry, and belongs to the technical field of biological detection. According to the method, the integrated analysis of the multi-dimensional functional state of the cynomolgus monkey T lymphocyte is realized, key signal channel activation and proliferation information of different subgroup cells can be synchronously obtained through a single experiment, and the detection comprehensiveness and efficiency are greatly improved. According to the method, an accurate tool capable of directly evaluating the response intensity and proliferation potential of T cells is provided for immune mechanism research based on a machin model, particularly immune therapy or disease research related to regulation and control of pathways such as IL-12 / STAT4 and the like, and the data dimension and reliability of preclinical immunological evaluation are remarkably enhanced.

The application discloses a CD3 antibody and application thereof, and relates to the technical field of biological medicine.The antibody provided by the application is a full human antibody, which fundamentally reduces immunogenicity risk, and lays a material foundation for developing safer T cell redirection therapy.The antibody has cross-reactivity with cynomolgus monkey CD3, can be directly used for a cynomolgus monkey model to perform systematic pharmacodynamics, pharmacokinetics and safety evaluation, greatly improves the prediction value of preclinical data, and accelerates the conversion process of a candidate molecule to clinical research.

The invention belongs to the technical field of molecular genetics and biology, and particularly relates to a cynomolgus monkey specific SNP site combination, a liquid chip and application of the cynomolgus monkey specific SNP site combination in individual recognition and paternity identification. The invention provides a combination of 1508 specific SNP (Single Nucleotide Polymorphism) sites of cynomolgus monkeys with high polymorphism. By utilizing the site combination, the invention further develops a high-throughput liquid phase chip which is suitable for efficient genetic analysis of cynomolgus monkeys. Experiments prove that when the liquid chip is used for detecting 383 cynomolgus monkey samples from three different groups, the average site detection rate reaches 99.47%, the recorded parent-child relationship can be accurately restored, and it is proved that the site combination and the liquid chip have extremely high accuracy and reliability in paternity identification. According to the technical scheme provided by the invention, the genetic detection efficiency and identification accuracy of the cynomolgus monkeys can be remarkably improved, and a powerful technical tool is provided for scientific breeding management, population genetic structure optimization and genetic resource protection of the cynomolgus monkeys.

The present disclosure relates to the development and application of a novel tumor adapter therapeutic drug. The therapeutic drug comprises a bispecific antibody binding to GPC3 and CD3, which comprises a first binding domain binding to GPC3 on the surface of target cells and a second binding domain binding to CD3 on the surface of T cells. The bispecific antibody can effectively inhibit the growth of transplanted tumors in immune-reconstituted mice at an extremely low dose, i.e. can inhibit tumor growth; the toxicology study in cynomolgus monkeys also shows that the animals are well tolerated to the bispecific antibody, and the bispecific antibody is superior to the same antibody in terms of efficacy and safety.

The invention provides a method for detecting a double-target agonist drug neutralizing antibody in cynomolgus monkey serum, and belongs to the technical field of biological detection. The invention establishes and verifies a stable, reliable and efficient detection method which can sensitively and specifically detect the neutralizing antibody activity of the cynomolgus monkey serum to the double-target agonist drug. The method has good precision, accuracy and reproducibility, effectively overcomes the interference of complex components in a serum sample, and ensures the accuracy and reliability of a detection result. The successful application of the method can provide key technical support for immunogenicity evaluation of double-target agonist drugs before clinical application and in clinical research, and the method has important practical significance for guaranteeing smooth drug research and development and medication safety.

The cynomolgus monkey feed feeding device comprises a supporting plate and further comprises a base, the base is arranged at the bottom of the supporting plate, a cavity is formed in the supporting plate, a balancing weight is connected between the base and the supporting plate in an inserted mode, the balancing weight is arranged in the cavity, inserting grooves A are vertically formed in the four corners of the bottom of the supporting plate, and the inserting grooves A are communicated with the supporting plate. When the supporting plate moves to a proper position, the supporting plate is pulled upwards, a gap is formed between the supporting plate and the base, the balancing weight is inserted to the top of the base along the gap position, the supporting plate is loosened after being inserted in place, the supporting plate falls to be attached to the base under the action of gravity, meanwhile, the balancing weight is just inserted into the cavity, and the self weight of the supporting plate structure is increased through the balancing weight; in the process that the cynomolgus monkeys eat food, the cynomolgus monkeys cannot pull the supporting plate, so that the supporting plate is prevented from moving and overturning, and food is prevented from being spilled and wasted.

The invention provides a PVRIG binding molecule and application thereof, and relates to the technical field of biology. The PVRIG binding molecule can specifically bind PVRIG, such as human and / or cynomolgus monkey PVRIG, and provides new possibility for treatment and / or prevention of tumors.

This invention specifically provides antibodies or antigen-binding fragments thereof that are specific to CD45. The antibodies include monospecific antibodies to CD45 and antibodies with dual complementary sites to CD45. The antibodies are typically capable of binding to both human and cynomolgus monkey CD45. The antibodies of this invention have various uses, including targeting, exhausting, and killing cells expressing CD45, particularly for the treatment of cancers or autoimmune diseases mediated by CD45-positive cells, or prior to cell transplantation.

Described herein are CLDN6 (human or human and cynomolgus monkey) specific single domain antibodies and binding molecules comprising such single domain antibodies, as well as nucleic acids encoding the same. Also provided are nucleic acids (e.g., mRNA) encoding such single domain antibodies and binding molecules and delivery vehicles (e.g., lipid nanoparticles) formulated with said nucleic acids. The disclosure also features methods of using such antibodies, binding molecules, nucleic acids, and delivery vehicles formulated with said nucleic acids to treat various diseases such as cancer (e.g., CLDN6 expressing solid tumors).

The present disclosure provides an antibody or an antigen-binding fragment thereof, which specifically binds to PVRIG, has high binding affinity to human PVRIG protein and cynomolgus PVRIG protein, and has strong activity in both reporter gene level and CD8 T cell activation. Compared with known SRF813 and COM701, the antibodies of the present application exhibit more optimal in vitro activity, and some of the antibodies combined with PD-1 antibodies have obvious anti-tumor effect, making them excellent candidate drug molecules for therapeutic and diagnostic use.

The present application relates to the technical field of hyperuricemia modeling, and particularly relates to a method for inducing and constructing a cynomolgus monkey hyperuricemia model and application thereof, comprising the following steps: S1: selecting male cynomolgus monkeys as model animals; S2: administering an inducing agent to the experimental animals, wherein the inducing agent is composed of hydrochlorothiazide, potassium oxonate and adenine. The inducing agent is added to ordinary monkey feed for normal feeding of the experimental animals, the intake dose of hydrochlorothiazide is 0.1 g / kg / day, the intake dose of potassium oxonate is 0.2 g / kg / day, the intake dose of adenine is 0.1 g / kg / day, and 10% fructose water is used to replace ordinary drinking water at the same time. The present application can induce a stable hyperuricemia state in the cynomolgus monkey body by means of dietary induction, combined use of hydrochlorothiazide, potassium oxonate and adenine, compared with a traditional model induced by a single intraperitoneal injection of a drug, the present application better simulates the pathogenic cause of human hyperuricemia, and is easier to operate.

The present application belongs to the technical field of biological medicine and immunology, and particularly relates to a single-domain antibody targeting human and cynomolgus monkey PD-L1 cross-binding and application thereof. The single-domain antibody has specificity against human and cynomolgus monkey PD-L1, and shows strong binding efficiency in the binding detection with a PD-L1 target protein or a PD-L1 overexpression cell. In the detection of blocking PD-1 / PD-L1 function, part of the single-domain antibodies even show a blocking effect significantly better than Atezolizumab, which confirms that the single-domain antibody prepared by the present application can be used for the diagnosis, treatment and prognosis detection of PD-L1 positive tumors. Meanwhile, the single-domain antibody has cross-binding ability across species, and can be directly used for preclinical pharmacodynamics and safety evaluation, without the need to develop species-specific alternative antibodies, so as to achieve "one target with double effect".

The invention provides a prevention and control method for cynomolgus monkeys based on SRV virus detection, and belongs to the technical field of cynomolgus monkey SRV virus detection, the cynomolgus monkeys after birth are subjected to intensive SRV antigen PCR and SRV antibody ELISA detection and are fed and managed in groups, negative animals after 9 months are subjected to annual quarantine, positive animals stop quarantine and are subjected to positive management by default, and the cynomolgus monkeys after birth are subjected to SRV antigen PCR detection and SRV antibody ELISA detection by default. The antibody positive and / or antigen positive belongs to the positive category. According to the method, SRV antigen PCR and SRV antibody ELISA detection are densely carried out on the cynomolgus monkeys after birth, grouping feeding management is carried out, early prevention and control can cut off a transmission chain, recessive infection can be effectively recognized, partially-infected monkeys are low in antibody reaction and even cannot be detected, but long-term detoxification can be achieved, recessive infection sources can be accurately removed by combining PCR and serological detection in the baby monkey period, and the method has the advantages of high specificity, high sensitivity, high sensitivity and the like. Although the detection cost is invested in the early stage, huge losses such as treatment, animal elimination and experiment repetition caused by disease outbreak in the future can be avoided.

The disclosure provides the first natural occurring proteases capable of cleaving human and cynomolgus antibodies of type IgM and IgG. They are from the genus of Lachnospiraceae and are only distantly related to all other known specific Ig cleaving proteases. In other aspects, there are provided nucleic acids encoding these proteases, vectors comprising these nucleic acids, and host cells expressing these proteases. Further there are provided in vitro and in vivo uses of said proteases, expression vectors or compositions related to said proteases, including but not limited to organ transplantation, treatment of autoimmune diseases, and treatments with cell and gene therapies.

The invention provides a PD-L1 binding molecule and application thereof, and relates to the technical field of biology. The PD-L1 binding molecule can be specifically bound with PD-L1, for example, the PD-L1 binding molecule can be bound with PD-L1 of human and / or cynomolgus monkeys, and new possibility is provided for treatment and / or prevention of tumors.

Provided in the present disclosure are a TIGIT-binding molecule and use thereof, relating to the field of biotechnology. The TIGIT-binding molecule is capable of specifically binding to TIGIT, such as human and / or cynomolgus monkey TIGIT, thereby providing a new possibility for the treatment and / or prevention of tumors.

The invention provides a method for detecting cynomolgus monkey activated memory T cells and tissue resident memory T cells through flow cytometry, and belongs to the technical field of biological detection. According to the invention, a stable and reliable flow cytometry detection method is established by optimizing a specific fluorescent antibody combination and a detection process. The method has the direct effects that a plurality of key T cell subgroups including activated memory T cells and tissue resident memory T cells can be clearly identified at one time from peripheral blood and nasal mucosa samples of cynomolgus monkeys, the detection result is accurate, and the repeatability is good. The establishment of the method provides key technical support for comprehensive and deep evaluation of immune response, especially local immune memory of mucous membrane parts in preclinical drug safety and immune efficacy evaluation, and has important application value for research and development of biological medicine products such as vaccines and immunomodulators.