Single‐cell profiling of transcriptomic changes during in vitro maturation of human oocytes

Abstract Purpose In vitro maturation (IVM) of human oocytes offers an invaluable opportunity for infertility treatment. However, in vitro matured oocytes often show lower developmental abilities than their in vivo counterparts, and molecular mechanisms underlying successful maturation remain unclear...

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Main Authors: Hiroki Takeuchi, Mari Yamamoto, Megumi Fukui, Akihiro Inoue, Tadashi Maezawa, Mikiko Nishioka, Eiji Kondo, Tomoaki Ikeda, Kazuya Matsumoto, Kei Miyamoto
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Reproductive Medicine and Biology
Subjects:
Online Access:https://doi.org/10.1002/rmb2.12464
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author Hiroki Takeuchi
Mari Yamamoto
Megumi Fukui
Akihiro Inoue
Tadashi Maezawa
Mikiko Nishioka
Eiji Kondo
Tomoaki Ikeda
Kazuya Matsumoto
Kei Miyamoto
author_facet Hiroki Takeuchi
Mari Yamamoto
Megumi Fukui
Akihiro Inoue
Tadashi Maezawa
Mikiko Nishioka
Eiji Kondo
Tomoaki Ikeda
Kazuya Matsumoto
Kei Miyamoto
author_sort Hiroki Takeuchi
collection DOAJ
description Abstract Purpose In vitro maturation (IVM) of human oocytes offers an invaluable opportunity for infertility treatment. However, in vitro matured oocytes often show lower developmental abilities than their in vivo counterparts, and molecular mechanisms underlying successful maturation remain unclear. In this study, we investigated gene expression profiles of in vitro matured oocytes at the single‐cell level to gain mechanistic insight into IVM of human oocytes. Methods Human oocytes were retrieved by follicular puncture and in vitro matured. In total, 19 oocytes from 11 patients were collected and subjected to single‐cell RNA‐seq analyses. Results Global gene expression profiles were similar among oocytes at the same maturation stage, while a small number of oocytes showed distinct transcriptomes from those at the corresponding maturation stage. Differential gene expression analysis identified hundreds of transcripts that dynamically altered their expression during IVM, and we revealed molecular pathways and upstream regulators that may govern oocyte maturation. Furthermore, oocytes that were delayed in their maturation showed distinct transcriptomes. Finally, we identified genes whose transcripts were enriched in each stage of oocyte maturation. Conclusions Our work uncovers transcriptomic changes during human oocyte IVM and the differential gene expression profile of each oocyte.
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spelling doaj.art-6c17ed69beb34dbea0cdd8fbc91fcc792022-12-27T13:54:58ZengWileyReproductive Medicine and Biology1445-57811447-05782022-01-01211n/an/a10.1002/rmb2.12464Single‐cell profiling of transcriptomic changes during in vitro maturation of human oocytesHiroki Takeuchi0Mari Yamamoto1Megumi Fukui2Akihiro Inoue3Tadashi Maezawa4Mikiko Nishioka5Eiji Kondo6Tomoaki Ikeda7Kazuya Matsumoto8Kei Miyamoto9Department of Obstetrics and Gynecology Graduate School of Medicine Mie University Mie JapanGraduate School of Biology‐Oriented Science and Technology Kindai University Wakayama JapanDepartment of Obstetrics and Gynecology Graduate School of Medicine Mie University Mie JapanGraduate School of Biology‐Oriented Science and Technology Kindai University Wakayama JapanDepartment of Obstetrics and Gynecology Graduate School of Medicine Mie University Mie JapanDepartment of Obstetrics and Gynecology Graduate School of Medicine Mie University Mie JapanDepartment of Obstetrics and Gynecology Graduate School of Medicine Mie University Mie JapanDepartment of Obstetrics and Gynecology Graduate School of Medicine Mie University Mie JapanGraduate School of Biology‐Oriented Science and Technology Kindai University Wakayama JapanGraduate School of Biology‐Oriented Science and Technology Kindai University Wakayama JapanAbstract Purpose In vitro maturation (IVM) of human oocytes offers an invaluable opportunity for infertility treatment. However, in vitro matured oocytes often show lower developmental abilities than their in vivo counterparts, and molecular mechanisms underlying successful maturation remain unclear. In this study, we investigated gene expression profiles of in vitro matured oocytes at the single‐cell level to gain mechanistic insight into IVM of human oocytes. Methods Human oocytes were retrieved by follicular puncture and in vitro matured. In total, 19 oocytes from 11 patients were collected and subjected to single‐cell RNA‐seq analyses. Results Global gene expression profiles were similar among oocytes at the same maturation stage, while a small number of oocytes showed distinct transcriptomes from those at the corresponding maturation stage. Differential gene expression analysis identified hundreds of transcripts that dynamically altered their expression during IVM, and we revealed molecular pathways and upstream regulators that may govern oocyte maturation. Furthermore, oocytes that were delayed in their maturation showed distinct transcriptomes. Finally, we identified genes whose transcripts were enriched in each stage of oocyte maturation. Conclusions Our work uncovers transcriptomic changes during human oocyte IVM and the differential gene expression profile of each oocyte.https://doi.org/10.1002/rmb2.12464delay in oocyte maturationhuman oocyteoocyte maturationsingle‐cell RNA‐sequencingtranscriptome
spellingShingle Hiroki Takeuchi
Mari Yamamoto
Megumi Fukui
Akihiro Inoue
Tadashi Maezawa
Mikiko Nishioka
Eiji Kondo
Tomoaki Ikeda
Kazuya Matsumoto
Kei Miyamoto
Single‐cell profiling of transcriptomic changes during in vitro maturation of human oocytes
Reproductive Medicine and Biology
delay in oocyte maturation
human oocyte
oocyte maturation
single‐cell RNA‐sequencing
transcriptome
title Single‐cell profiling of transcriptomic changes during in vitro maturation of human oocytes
title_full Single‐cell profiling of transcriptomic changes during in vitro maturation of human oocytes
title_fullStr Single‐cell profiling of transcriptomic changes during in vitro maturation of human oocytes
title_full_unstemmed Single‐cell profiling of transcriptomic changes during in vitro maturation of human oocytes
title_short Single‐cell profiling of transcriptomic changes during in vitro maturation of human oocytes
title_sort single cell profiling of transcriptomic changes during in vitro maturation of human oocytes
topic delay in oocyte maturation
human oocyte
oocyte maturation
single‐cell RNA‐sequencing
transcriptome
url https://doi.org/10.1002/rmb2.12464
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