Acknowledgement
This work was supported by grants from the National Natural Science Foundation of China (No. 31872350 and No. 31460601) and the Guangxi Science Foundation Program (No. 2018JJA130158 and No. 2018JJD130047).
References
- Lu Y, Zhang M, Lu S, Xu D, Huang W, Meng B, Xu H, Lu KLuY. Sex-preselected buffalo (Bubalus bubalis) calves derived from artificial insemination with sexed sperm. Anim Reprod Sci 2010;119:169-171. https://doi.org/10.1016/j.anireprosci.2010.01.001
- Lu Y, Liao Y, Zhang M, Yang B, Liang X, Yang X, Lu S, Wu Z, Xu H, Liang Y, Lu K. A field study on artificial insemination of swamp and crossbred buffaloes with sexed semen from river buffaloes. Theriogenology 2015;84:862-867. https://doi.org/10.1016/j.theriogenology.2015.05.022
- Liang YY, Phermthai T, Nagai T, Somfai T, Parnpai R. In vitro development of vitrified buffalo oocytes following parthenogenetic activation and intracytoplasmic sperm injection. Theriogenology 2011;75:1652-1660. https://doi.org/10.1016/j.theriogenology.2010.12.028
- Totey SM, Singh G, Taneja M, Pawshe CH, Talwar GP. In vitro maturation, fertilization and development of follicular oocytes from buffalo (Bubalus bubalis). J Reprod Fertil 1992;95:597-607. https://doi.org/10.1530/jrf.0.0950597
- Kanatsu-Shinohara M, Shinohara T. Spermatogonial stem cell self-renewal and development. Annu Rev Cell Dev Biol 2013;29:163-187. https://doi.org/10.1146/annurev-cellbio-101512-122353
- Kubota H, Avarbock MR, Brinster RL. Growth factors essential for self-renewal and expansion of mouse spermatogonial stem cells. Proc Natl Acad Sci U S A 2004;101:16489-16494. https://doi.org/10.1073/pnas.0407063101
- Garbuzov A, Pech MF, Hasegawa K, Sukhwani M, Zhang RJ, Orwig KE, Artandi SE. Purification of GFRα1+ and GFRα1- spermatogonial stem cells reveals a niche-dependent mechanism for fate determination. Stem Cell Reports 2018;10:553-567. https://doi.org/10.1016/j.stemcr.2017.12.009
- Sato T, Katagiri K, Yokonishi T, Kubota Y, Inoue K, Ogonuki N, Matoba S, Ogura A, Ogawa T. In vitro production of fertile sperm from murine spermatogonial stem cell lines. Nat Commun 2011;2:472. https://doi.org/10.1038/ncomms1478
- Kanatsu-Shinohara M, Miki H, Inoue K, Ogonuki N, Toyokuni S, Ogura A, Shinohara T. Long-term culture of mouse male germline stem cells under serum-or feeder-free conditions. Biol Reprod 2005;72:985-991. https://doi.org/10.1095/biolreprod.104.036400
- Kanatsu-Shinohara M, Ogonuki N, Inoue K, Miki H, Ogura A, Toyokuni S, Shinohara T. Long-term proliferation in culture and germline transmission of mouse male germline stem cells. Biol Reprod 2003;69:612-616. https://doi.org/10.1095/biolreprod.103.017012
- Brinster RL. Germline stem cell transplantation and transgenesis. Science 2002;296:2174-2176. https://doi.org/10.1126/science.1071607
- Sada A, Hasegawa K, Pin PH, Saga Y. NANOS2 acts downstream of glial cell line-derived neurotrophic factor signaling to suppress differentiation of spermatogonial stem cells. Stem Cells 2012;30:280-291. https://doi.org/10.1002/stem.790
- Hamra FK, Chapman KM, Nguyen DM, Williams-Stephens AA, Hammer RE, Garbers DL. Self renewal, expansion, and transfection of rat spermatogonial stem cells in culture. Proc Natl Acad Sci U S A 2005;102:17430-17435. https://doi.org/10.1073/pnas.0508780102
- Kanatsu-Shinohara M, Inoue K, Ogonuki N, Morimoto H, Ogura A, Shinohara T. Serum- and feeder-free culture of mouse germline stem cells. Biol Reprod 2011;84:97-105. https://doi.org/10.1095/biolreprod.110.086462
- Petkov SG, Anderson GB. Culture of porcine embryonic germ cells in serum-supplemented and serumfree conditions: the effects of serum and growth factors on primary and long-term culture. Cloning Stem Cells 2008;10:263-276. https://doi.org/10.1089/clo.2007.0085
- Hogg K, Western PS. Differentiation of fetal male germline and gonadal progenitor cells is disrupted in organ cultures containing KnockOut Serum Replacement. Stem Cells Dev 2015;24:2899-2911. https://doi.org/10.1089/scd.2015.0196
- Liu F, Cai C, Wu X, Cheng Y, Lin T, Wei G, He D. Effect of KnockOut Serum Replacement on germ cell development of immature testis tissue culture. Theriogenology 2016;85:193-199. https://doi.org/10.1016/j.theriogenology.2015.09.012
- Okada M, Oka M, Yoneda Y. Effective culture conditions for the induction of pluripotent stem cells. Biochim Biophys Acta 2010;1800:956-963. https://doi.org/10.1016/j.bbagen.2010.04.004
- Youssefi R, Tajik P, Movahedin M, Akbarinejad V. Enhancement in colonization of bovine spermatogonial stem cells following addition of Knock-Out Serum Replacement to culture medium. Vet Res Forum 2016;7:275-280.
- Cheng J, Dutra A, Takesono A, Garrett-Beal L, Schwartzberg PL. Improved generation of C57BL/6J mouse embryonic stem cells in a defined serum-free media. Genesis 2004;39:100-104. https://doi.org/10.1002/gene.20031
- Kishi Y, Inoue M, Tanaka Y, Shibata H, Masuda S, Ikeda T, Hasegawa M, Hanazono Y. KnockOut Serum Replacement (KSR) has a suppressive effect on Sendai virus-mediated transduction of cynomolgus ES cells. Cloning Stem Cells 2008;10:307-312. https://doi.org/10.1089/clo.2007.0080
- Liu K, Wang F, Ye X, Wang L, Yang J, Zhang J, Liu L. KSR-based medium improves the generation of high-quality mouse iPS cells. PLoS One 2014;9:e105309. https://doi.org/10.1371/journal.pone.0105309
- Kadam PH, Kala S, Agrawal H, Singh KP, Singh MK, Chauhan MS, Palta P, Singla SK, Manik RS. Effects of glial cell line-derived neurotrophic factor, fibroblast growth factor 2 and epidermal growth factor on proliferation and the expression of some genes in buffalo (Bubalus bubalis) spermatogonial cells. Reprod Fertil Dev 2013;25:1149-1157. https://doi.org/10.1071/RD12330
- Kala S, Kaushik R, Singh KP, Kadam PH, Singh MK, Manik RS, Singla SK, Palta P, Chauhan MS. In vitro culture and morphological characterization of prepubertal buffalo (Bubalus bubalis) putative spermatogonial stem cell. J Assist Reprod Genet 2012;29:1335-1342. https://doi.org/10.1007/s10815-012-9883-y
- Yu X, Riaz H, Dong P, Chong Z, Luo X, Liang A, Yang L. Identification and IVC of spermatogonial stem cells in prepubertal buffaloes. Theriogenology 2014;81:1312-1322. https://doi.org/10.1016/j.theriogenology.2014.03.002
- Goel S, Reddy N, Mandal S, Fujihara M, Kim SM, Imai H. Spermatogonia-specific proteins expressed in prepubertal buffalo (Bubalus bubalis) testis and their utilization for isolation and in vitro cultivation of spermatogonia. Theriogenology 2010;74:1221-1232. https://doi.org/10.1016/j.theriogenology.2010.05.025
- Saba R, Kato Y, Saga Y. NANOS2 promotes male germ cell development independent of meiosis suppression. Dev Biol 2014;385:32-40. https://doi.org/10.1016/j.ydbio.2013.10.018
- Oatley MJ, Kaucher AV, Yang QE, Waqas MS, Oatley JM. Conditions for long-term culture of cattle undifferentiated spermatogonia. Biol Reprod 2016;95:14. https://doi.org/10.1095/biolreprod.116.139832
- Shah SM, Singla SK, Palta P, Manik RS, Chauhan MS. Retinoic acid induces differentiation of buffalo (Bubalus bubalis) embryonic stem cells into germ cells. Gene 2017;626:358-366. https://doi.org/10.1016/j.gene.2017.05.037
- Rafeeqi T, Kaul G. Isolation and enrichment of type A spermatogonia from pre-pubertal buffalo (Bubalus bubalis) testis. Andrologia 2013;45:195-203. https://doi.org/10.1111/j.1439-0272.2012.01331.x
- Shinohara T, Avarbock MR, Brinster RL. β1- and α6-integrin are surface markers on mouse spermatogonial stem cells. Proc Natl Acad Sci U S A 1999;96:5504-5509. https://doi.org/10.1073/pnas.96.10.5504
- Heidari B, Gifani M, Shirazi A, Zarnani AH, Baradaran B, Naderi MM, Behzadi B, Borjian-Boroujeni S, Sarvari A, Lakpour N, Akhondi MM. Enrichment of undifferentiated type A spermatogonia from goat testis using discontinuous percoll density gradient and differential plating. Avicenna J Med Biotechnol 2013;6:94-103.
- Giassetti MI, Goissis MD, de Barros F, Bruno AH, Assumpcao M, Visintin JA. Comparison of diverse differential plating methods to enrich bovine spermatogonial cells. Reprod Domest Anim 2016;51:26-32. https://doi.org/10.1111/rda.12641
- Mahla RS, Reddy N, Goel S. Spermatogonial stem cells (SSCs) in buffalo (Bubalus bubalis) testis. PLoS One 2012;7:e36020. https://doi.org/10.1371/journal.pone.0036020
- Su H, Luo F, Bao J, Wu S, Zhang X, Zhang Y, Duo S, Wu Y. Long-term culture and analysis of cashmere goat Sertoli cells. In Vitro Cell Dev Biol Anim 2014;50:918-925. https://doi.org/10.1007/s11626-013-9648-7
- Feng W, Chen S, Do D, Liu Q, Deng Y, Lei X, Luo C, Huang B, Shi D. Isolation and identification of prepubertal buffalo (Bubalus bubalis) spermatogonial stem cells. Asian-Australas J Anim Sci 2016;29:1407-1415. https://doi.org/10.5713/ajas.15.0592
- Zhang P, Chen X, Zheng Y, Zhu J, Qin Y, Lv Y, Zeng W. Long-term propagation of porcine undifferentiated spermatogonia. Stem Cells Dev 2017;26:1121-1131. https://doi.org/10.1089/scd.2017.0018
- Garcia-Gonzalo FR, Izpisua Belmonte JC. Albumin-associated lipids regulate human embryonic stem cell self-renewal. PLoS One 2008;3:e1384. https://doi.org/10.1371/journal.pone.0001384
- Kanatsu-Shinohara M, Ogonuki N, Matoba S, Morimoto H, Ogura A, Shinohara T. Improved serum- and feeder-free culture of mouse germline stem cells. Biol Reprod 2014;91:88.
- Western P. Foetal germ cells: striking the balance between pluripotency and differentiation. Int J Dev Biol 2009;53:393-409. https://doi.org/10.1387/ijdb.082671pw