PMID- 23317821 OWN - NLM STAT- MEDLINE DCOM- 20130916 LR - 20211203 IS - 1937-6448 (Print) IS - 1937-6448 (Linking) VI - 301 DP - 2013 TI - Regulation of blood-testis barrier (BTB) dynamics during spermatogenesis via the "Yin" and "Yang" effects of mammalian target of rapamycin complex 1 (mTORC1) and mTORC2. PG - 291-358 LID - B978-0-12-407704-1.00006-3 [pii] LID - 10.1016/B978-0-12-407704-1.00006-3 [doi] AB - In mammalian testes, haploid spermatozoa are formed from diploid spermatogonia during spermatogenesis, which is a complicated cellular process. While these cellular events were reported in the 1960s and 1970s, the underlying molecular mechanism(s) that regulates these events remained unexplored until the past approximately 10 years. For instance, adhesion proteins were shown to be integrated components at the Sertoli cell-cell interface and/or the Sertoli-spermatid interface in the late 1980s. But only until recently, studies have demonstrated that some of the adhesion proteins serve as the platform for signal transduction that regulates cell adhesion. In this chapter, a brief summary and critical discussion are provided on the latest findings regarding these cell-adhesion proteins in the testis and their relationship to spermatogenesis. Moreover, antagonistic effects of two mammalian target of rapamycin (mTOR) complexes, known as mTORC1 and mTORC2, on cell-adhesion function in the testis are discussed. Finally, a hypothetic model is presented to depict how these two mTOR-signaling complexes having the "yin" and "yang" antagonistic effects on the Sertoli cell tight junction (TJ)-permeability barrier can maintain the blood-testis barrier (BTB) integrity during the epithelial cycle while preleptotene spermatocytes are crossing the BTB. CI - Copyright (c) 2013 Elsevier Inc. All rights reserved. FAU - Mok, Ka Wai AU - Mok KW AD - Mary M. Wohlford Laboratory for Male Contraceptive Research, Center for Biomedical Research, Population Council, New York, USA. FAU - Mruk, Dolores D AU - Mruk DD FAU - Cheng, C Yan AU - Cheng CY LA - eng GR - R01 HD056034/HD/NICHD NIH HHS/United States GR - U54 HD029990/HD/NICHD NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Review PL - Netherlands TA - Int Rev Cell Mol Biol JT - International review of cell and molecular biology JID - 101475846 RN - 0 (Actins) RN - 0 (Multiprotein Complexes) RN - EC 2.7.11.1 (Mechanistic Target of Rapamycin Complex 1) RN - EC 2.7.11.1 (Mechanistic Target of Rapamycin Complex 2) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) SB - IM MH - Actins/metabolism MH - Animals MH - Blood-Testis Barrier/*metabolism MH - Humans MH - Male MH - Mechanistic Target of Rapamycin Complex 1 MH - Mechanistic Target of Rapamycin Complex 2 MH - Models, Biological MH - Multiprotein Complexes/*metabolism MH - *Spermatogenesis MH - TOR Serine-Threonine Kinases/*metabolism PMC - PMC4086807 MID - NIHMS587940 EDAT- 2013/01/16 06:00 MHDA- 2013/09/17 06:00 PMCR- 2014/07/08 CRDT- 2013/01/16 06:00 PHST- 2013/01/16 06:00 [entrez] PHST- 2013/01/16 06:00 [pubmed] PHST- 2013/09/17 06:00 [medline] PHST- 2014/07/08 00:00 [pmc-release] AID - B978-0-12-407704-1.00006-3 [pii] AID - 10.1016/B978-0-12-407704-1.00006-3 [doi] PST - ppublish SO - Int Rev Cell Mol Biol. 2013;301:291-358. doi: 10.1016/B978-0-12-407704-1.00006-3.