[Advances in molecular mechanisms of meiotic arrest and luteinizing hormone-induced meiotic resumption in oocytes].
Sheng Li Xue Bao
; 72(4): 513-522, 2020 Aug 25.
Article
en Zh
| MEDLINE
| ID: mdl-32820314
ABSTRACT
Mammalian oocytes within Graafian follicles are arrested at prophase I of meiosis. C-type natriuretic peptide (NPPC), secreted by mural granulosa cells (MGCs), maintains oocyte meiotic arrest via binding to its cognate receptor natriuretic peptide receptor 2 (NPR2) and producing cyclic guanosine monophosphate (cGMP). NPR2 is most concentrated in the cumulus cells. In addition, cAMP, gap junction, inosine monophosphate dehydrogenase (IMPDH) and other important regulatory factors are also involved in meiotic arrest. Luteinizing hormone (LH) then rapidly decreases cGMP and induces oocyte meiotic resumption. In this paper, advances in the molecular mechanisms of meiotic arrest and LH-induced meiotic resumption were reviewed. This paper may provide new ideas for the prevention, diagnosis and treatment of related reproductive diseases.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Oocitos
/
Hormona Luteinizante
Límite:
Animals
Idioma:
Zh
Revista:
Sheng Li Xue Bao
Año:
2020
Tipo del documento:
Article
País de afiliación:
China