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Cytoskeletal dynamics and spermatogenesis
Pearl P. Y. Lie, Dolores D. Mruk, Will M. Lee and C. Yan Cheng
Philosophical Transactions: Biological Sciences
Vol. 365, No. 1546, The biology and regulation of spermatogenesis (27 May 2010), pp. 1581-1592
Published by: Royal Society
Stable URL: http://www.jstor.org/stable/20789162
Page Count: 12
You can always find the topics here!Topics: Actins, Sertoli cells, Spermatids, Testes, Spermatogenesis, Germ cells, Physiological regulation, Microtubules, Seminiferous epithelium, Focal adhesions
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Different cellular events occur during spermatogenesis, and these include (i) mitosis for self-renewal of spermatogonia, (ii) differentiation of type A spermatogonia into type B and commitment of type B spermatogonia to develop into preleptotene primary spermatocytes, (iii) transit of preleptotene/leptotene spermatocytes across the blood—testis barrier in coordination with germ cell cycle progression and meiosis, (iv) spermiogenesis and spermiation. These events also associate with extensive changes in cell shape and size, and germ cell movement. The cytoskeleton, which comprises actin, microtubules and intermediate filaments, is believed to function in these cellular events. However, few studies have been conducted by investigators in the past decades to unfold the role of the cytoskeleton during spermatogenesis. This review summarizes recent advances in the field relating to cytoskeletal dynamics in the testis, and highlights areas of research that require additional emphasis so that new approaches for male contraception, as well as therapeutic approaches to alleviate environmental toxicant-induced reproductive dysfunction in men, can possibly be developed.
Philosophical Transactions: Biological Sciences © 2010 Royal Society