用于获得猪多能干细胞的培养基以及猪多能干细胞的诱导培养方法

By using LACID medium and iCD3 medium combined with mechanical separation, the induction culture process of porcine pluripotent stem cells was optimized, solving the problems of long induction cycle and low efficiency in existing technologies, and achieving efficient acquisition of porcine pluripotent stem cells with pluripotency and developmental potential.

CN120464577BActive Publication Date: 2026-07-17WESTLAKE UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WESTLAKE UNIV
Filing Date
2025-04-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing porcine pluripotent stem cell (piPSC) culture processes, the induction period is relatively long, the efficiency of induced cell clone formation in the induction medium is low, and the maintenance of pluripotency of piPSCs needs to be improved.

Method used

LACID medium, which is based on Knockout DMEM medium and supplemented with fetal bovine serum, Knockout serum substitute, GlutaMAX, non-essential amino acids, β-mercaptoethanol, human leukemia inhibitory factor, activin A, GSK-3 inhibitor, Wnt signaling pathway inhibitor, and L-ascorbic acid-2-phosphate trisodium salt, was used to induce porcine pluripotent stem cell culture in combination with iCD3 medium and mechanical separation method.

Benefits of technology

The induction time of porcine pluripotent stem cells was shortened to a minimum of 14 days, improving the induction efficiency. The obtained piPSCs exhibited pluripotency and developmental potential, and were able to differentiate into cardiomyocytes and teratomas. When cultured under feeder-free conditions, they showed rapid proliferation and good developmental ability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120464577B_ABST
    Figure CN120464577B_ABST
Patent Text Reader

Abstract

本发明涉及一种用于获得猪多能干细胞的培养基以及猪多能干细胞的诱导培养方法。在猪的胎儿成纤维细胞中转入诱导重编程的转录因子,然后,将所得细胞接种在培养板的饲养层细胞上,培养1天后,将细胞换用iCD3培养基继续培养9~14天,且每隔一天或者两天使用iCD3培养基进行换液,细胞在培养5‑7天出现致密的上皮样细胞形态;将步骤1获得的细胞换用LACID培养基培养至出现干细胞样克隆;使用机械分离法将原始细胞克隆传代培养,建立piPSCs细胞;获得的piPSCs细胞系进行传代,传代后再进行培养。本发明具有较快的增殖能力,每17.1小时即可扩增一代,有利于快速进行基因编辑实验,且培养的piPSCs具有良好的发育和分化能力。
Need to check novelty before this filing date? Find Prior Art