Abstract
All organogenesis is triggered by various cellular behaviors, based on early embryonic patterning. At the onset of the formation of the ovary or testis, a subset of coelomic epithelial cells undergo (1) epithelial-to-mesenchymal transition (EMT) and subsequent ingression, (2) gonadal differentiation, (3) maintenance of stem-like state at outer layer, and (4) acquisition of the capability to retain primordial germ cells (PGCs), in early embryos. The specific embryonic patterning responsible for these cellular behaviors represents a long-standing question in developmental biology. We addressed this question using chicken embryo, a suitable model system for cell-labeling experiments and spatiotemporally restricted gene manipulation. We found that the ventral part of medial lateral plate mesoderm (M-LPM), a precursor of coelomic epithelium, initiates gonadogenesis by undergoing ingression. By contrast, dorsal M-LPM did not undergo ingression or form gonad. Sonic Hedgehog (SHH)-BMP4 signaling establishes this dorsoventral pattern in M-LPM and initiates gonadogenesis. SHH protein is secreted from the endoderm, which is located ventral to LPM, and reaches ventral but not dorsal M-LPM. As a result, Hedgehog (Hh) signaling triggers several cellular behaviors involved in initiation of gonadogenesis in ventral M-LPM. Downstream of Hh signaling, BMP4 dynamically changes its expression and functions. It is well known that BMP4 is expressed throughout the whole LPM and establishes the mediolateral axis in the early embryo. Thereafter, at the onset of gonadogenesis, its expression is restricted to the ventral part and thus forms a dorsoventral pattern in the M-LPM in a Hh-dependent manner. As a result, BMP4 causes multiple cellular behaviors involved in gonad formation in the ventral M-LPM. Furthermore, other recent studies imply that these cellular behaviors are regulated by several molecules, such as SNAIL2, NUMB, and SDF1, at the downstream of Hh-BMP4 signaling.
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References
Li R, Albertini DF. The road to maturation: somatic cell interaction and self-organization of the mammalian oocyte. Nat Rev Mol Cell Biol. 2013;14:141–52.
Young JM, McNeilly AS. Theca: the forgotten cell of the ovarian follicle. Reproduction (Cambridge, England). 2010;140:489–504.
Auersperg N, Wong AS, Choi KC, Kang SK, Leung PC. Ovarian surface epithelium: biology, endocrinology, and pathology. Endocr Rev. 2001;22:255–88.
Katabuchi H, Okamura H. Cell biology of human ovarian surface epithelial cells and ovarian carcinogenesis. Med Electr Microsc. 2003;36:74–86.
Koopman P. The curious world of gonadal development in mammals. Curr Top Dev Biol. 2016;116:537–45.
Suzuki H, Kanai-Azuma M, Kanai Y. From sex determination to initial folliculogenesis in mammalian ovaries: morphogenetic waves along the anteroposterior and dorsoventral axes. Sex Dev. 2015;9:190–204.
Biason-Lauber A, Chaboissier MC. Ovarian development and disease: the known and the unexpected. Semin Cell Dev Biol. 2015;45:59–67.
Harikae K, Miura K, Kanai Y. Early gonadogenesis in mammals: significance of long and narrow gonadal structure. Dev Dyn. 2013;242:330–8.
DeFalco T, Capel B. Gonad morphogenesis in vertebrates: divergent means to a convergent end. Annu Rev Cell Dev Biol. 2009;25:457–82.
Piprek RP, Kloc M, Kubiak JZ. Early development of the gonads: origin and differentiation of the somatic cells of the genital ridges. Results Probl Cell Differ. 2016;58:1–22.
Tanaka SS, Nishinakamura R. Regulation of male sex determination: genital ridge formation and Sry activation in mice. Cell Mol Life Sci. 2014;71:4781–802.
Lin YT, Barske L, DeFalco T, Capel B. Numb regulates somatic cell lineage commitment during early gonadogenesis in mice. Development (Cambridge, England). 2017;144:1607–18.
Richardson BE, Lehmann R. Mechanisms guiding primordial germ cell migration: strategies from different organisms. Nat Rev Mol Cell Biol. 2010;11:37–49.
Yoshino T, Murai H, Saito D. Hedgehog-BMP signalling establishes dorsoventral patterning in lateral plate mesoderm to trigger gonadogenesis in chicken embryos. Nat Commun. 2016;7:12561.
Atsuta Y, Takahashi Y. FGF8 coordinates tissue elongation and cell epithelialization during early kidney tubulogenesis. Development (Cambridge, England). 2015;142:2329–37.
Saito D, Takase Y, Murai H, Takahashi Y. The dorsal aorta initiates a molecular cascade that instructs sympatho-adrenal specification. Science (New York, NY). 2012;336:1578–81.
Pietila I, Vainio S. The embryonic aorta-gonad-mesonephros region as a generator of haematopoietic stem cells. APMIS. 2005;113:804–12.
de Bruijn MF, Speck NA, Peeters MC, Dzierzak E. Definitive hematopoietic stem cells first develop within the major arterial regions of the mouse embryo. EMBO J. 2000;19:2465–74.
Yoshino T, Saito D, Tadokoro R, Takahashi Y. In vivo gene manipulations of epithelial cell sheets: a novel model to study epithelial-to-mesenchymal transition. Develop Growth Differ. 2011;53:378–88.
Yoshino T, et al. Interepithelial signaling with nephric duct is required for the formation of overlying coelomic epithelial cell sheet. Proc Natl Acad Sci U S Am. 2014;111:6660–5.
Hen G, Friedman-Einat M, Sela-Donenfeld D. Primordial germ cells in the dorsal mesentery of the chicken embryo demonstrate left-right asymmetry and polarized distribution of the EMA1 epitope. J Anat. 2014;224:556–63.
Briscoe J, Small S. Morphogen rules: design principles of gradient-mediated embryo patterning. Development (Cambridge, England). 2015;142:3996–4009.
Ramsbottom SA, Pownall ME. Regulation of Hedgehog signalling inside and outside the cell. J Dev Biol. 2016;4:23.
Zhang XM, Ramalho-Santos M, McMahon AP. Smoothened mutants reveal redundant roles for Shh and Ihh signaling including regulation of L/R asymmetry by the mouse node. Cell. 2001;105:781–92.
Madison BB, et al. Epithelial hedgehog signals pattern the intestinal crypt-villus axis. Development (Cambridge, England). 2005;132:279–89.
Auersperg N. The stem-cell profile of ovarian surface epithelium is reproduced in the oviductal fimbriae, with increased stem-cell marker density in distal parts of the fimbriae. Int J Gynecol Pathol. 2013;32:444–53.
Oreal E, Mazaud S, Picard JY, Magre S, Carre-Eusebe D. Different patterns of anti-Mullerian hormone expression, as related to DMRT1, SF-1, WT1, GATA-4, Wnt-4, and Lhx9 expression, in the chick differentiating gonads. Dev Dyn. 2002;225:221–32.
Kallioniemi A. Bone morphogenetic protein 4-a fascinating regulator of cancer cell behavior. Cancer Genet. 2012;205:267–77.
De Robertis EM, Kuroda H. Dorsal-ventral patterning and neural induction in Xenopus embryos. Annu Rev Cell Dev Biol. 2004;20:285–308.
Stern CD. Neural induction: old problem, new findings, yet more questions. Development (Cambridge, England). 2005;132:2007–21.
Sukegawa A, et al. The concentric structure of the developing gut is regulated by Sonic hedgehog derived from endodermal epithelium. Development (Cambridge, England). 2000;127:1971–80.
Tonegawa A, Takahashi Y. Somitogenesis controlled by Noggin. Dev Biol. 1998;202:172–82.
Tonegawa A, Funayama N, Ueno N, Takahashi Y. Mesodermal subdivision along the mediolateral axis in chicken controlled by different concentrations of BMP-4. Development (Cambridge, England). 1997;124:1975–84.
Nieto MA, Huang RY, Jackson RA, Thiery JP. EMT: 2016. Cell. 2016;166:21–45.
Nakaya Y, Sheng G. An amicable separation: Chick’s way of doing EMT. Cell Adhes Migr. 2009;3:160–3.
Nieto MA. Epithelial plasticity: a common theme in embryonic and cancer cells. Science (New York, NY). 2013;342:1234850.
Arraf AA, Yelin R, Reshef I, Kispert A, Schultheiss TM. Establishment of the visceral embryonic midline is a dynamic process that requires bilaterally symmetric BMP signaling. Dev Cell. 2016;37:571–80.
Morohashi K. The ontogenesis of the steroidogenic tissues. Genes Cells. 1997;2:95–106.
Ozisik G, Achermann JC, Meeks JJ, Jameson JL. SF1 in the development of the adrenal gland and gonads. Horm Res. 2003;59:94–8.
Birk OS, et al. The LIM homeobox gene Lhx9 is essential for mouse gonad formation. Nature. 2000;403:909–13.
Hu YC, Okumura LM, Page DC. Gata4 is required for formation of the genital ridge in mice. PLoS Genet. 2013;9:e1003629.
Qi X, et al. Essential role of Smad4 in maintaining cardiomyocyte proliferation during murine embryonic heart development. Dev Biol. 2007;311:136–46.
Rojas A, et al. Gata4 expression in lateral mesoderm is downstream of BMP4 and is activated directly by Forkhead and GATA transcription factors through a distal enhancer element. Development (Cambridge, England). 2005;132:3405–17.
Si L, et al. Smad4 mediated BMP2 signal is essential for the regulation of GATA4 and Nkx2.5 by affecting the histone H3 acetylation in H9c2 cells. Biochem Biophys Res Commun. 2014;450:81–6.
Mamsen LS, Brochner CB, Byskov AG, Mollgard K. The migration and loss of human primordial germ stem cells from the hind gut epithelium towards the gonadal ridge. Int J Dev Biol. 2012;56:771–8.
Stebler J, et al. Primordial germ cell migration in the chick and mouse embryo: the role of the chemokine SDF-1/CXCL12. Dev Biol. 2004;272:351–61.
Dudley B, Palumbo C, Nalepka J, Molyneaux K. BMP signaling controls formation of a primordial germ cell niche within the early genital ridges. Dev Biol. 2010;343:84–93.
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Yoshino, T. (2018). The Role of Hedgehog-BMP4 Signaling in the Patterning of Coelomic Mesoderm and the Onset of Gonadogenesis. In: Katabuchi, H., Ohba, T., Motohara, T. (eds) Cell Biology of the Ovary. Springer, Singapore. https://doi.org/10.1007/978-981-10-7941-2_2
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