Panda oocyte in-vitro maturation culture solution and application thereof

By adding ARF6, CNTF, and HGF to the in vitro maturation culture medium of giant panda oocytes, the problems of uncoordinated oocyte maturation and insufficient in vitro culture system were solved, achieving efficient and safe multi-target synergistic regulation and improving the maturation rate and quality of giant panda oocytes.

CN122128224APending Publication Date: 2026-06-02CHENGDU RES BASE OF GIANT PANDA BREEDING
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Patent Information

Application Number
CN202610622251.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-08
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing in vitro oocyte maturation technologies suffer from incoordination and asynchronous maturation between nuclear and cytoplasmic maturation, making it difficult to simulate the in vivo microenvironment and lacking efficient and safe paracrine factor supplementation strategies. This results in low maturation rates, low embryo development rates, and poor quality, especially for rare and endangered species such as giant pandas, where there is a lack of effective culture systems.

Method used

By adding specific concentrations of paracrine factors ARF6, CNTF, and HGF to the basal culture medium, the maturation microenvironment of oocytes in vivo was simulated. Through multi-target synergistic regulation, the nuclear maturation rate and cytoplasmic maturation quality were improved, aging and apoptosis were reduced, and developmental potential was enhanced.

Benefits of technology

It significantly improves the maturation rate and quality of oocytes, enhances cumulus cell expansion, reduces aging and apoptosis, and improves developmental potential. It simplifies the operation and has high safety, making it suitable for in vitro maturation culture of giant panda oocytes.

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Abstract

The invention relates to a panda oocyte in-vitro maturation culture solution and application thereof, and belongs to the technical field of biology. According to the panda oocyte in-vitro maturation culture solution disclosed by the invention, the following three paracrine factors are simultaneously added into a basic culture solution: an adenosine diphosphate ribosylation factor 6, namely ARF6; a ciliary neurotrophic factor, namely: CNTF; a hepatocyte growth factor, i.e., HGF. The invention further provides application of the panda oocyte in-vitro maturation culture solution, and the panda oocyte in-vitro maturation culture solution is used for carrying out in-vitro maturation culture on panda oocytes. According to the method, the defects of the existing oocyte in-vitro maturation technology can be specifically solved, the oocyte maturation quality is remarkably improved, the operation is simple and convenient, the safety is high, and key technical reserve can be provided for aided reproduction of pandas.
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