Creating a Semi-opened Micro-cavity Ovary Through Sacrificial Microspheres As an Model for Discovering the Potential Effect of Ovarian Toxic Agents

Overview

Journal Bioact Mater

Specialty Biomedical Engineering

Date 2023 Mar 20

PMID 36936809

Authors

Min Ye

Yiran Shan

Bingchuan Lu

Hao Luo

Binhan Li

Yanmei Zhang

Zixuan Wang

Yuzhi Guo

Liliang Ouyang

Jin Gu

Zhuo Xiong

Ting Zhang

Affiliations

Soon will be listed here.

Abstract

The bio-engineered ovary is an essential technology for treating female infertility. Especially the development of relevant models could be a critical step in a drug study. Herein, we develop a semi-opened culturing system (SOCS) strategy that maintains a 3D structure of follicles during the culture. Based on the SOCS, we further developed micro-cavity ovary (MCO) with mouse follicles by the microsphere-templated technique, where sacrificial gelatin microspheres were mixed with photo-crosslinkable gelatin methacryloyl (GelMA) to engineer a micro-cavity niche for follicle growth. The semi-opened MCO could support the follicle growing to the antral stage, secreting hormones, and ovulating cumulus-oocyte complex out of the MCO without extra manipulation. The MCO-ovulated oocyte exhibits a highly similar transcriptome to the counterpart (correlation of 0.97) and can be fertilized. Moreover, we found that a high ROS level could affect the cumulus expansion, which may result in anovulation disorder. The damage could be rescued by melatonin, but the end of cumulus expansion was 3h earlier than anticipation, validating that MCO has the potential for investigating ovarian toxic agents . We provide a novel approach for building an ovarian model to recapitulate ovarian functions and test chemical toxicity, suggesting it has the potential for clinical research in the future.

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