Mammalia

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    Protocols in Current Issue
    Isolation of Primary Leydig Cells from Murine Testis
    Authors:  Jinlian Liang, Yan Tang, Hanhao Li, Jiaxin Mei, Zhen Cao, Huan Xia, Rufei Huang, Yan Yang and Yadong Huang, date: 11/20/2021, view: 998, Q&A: 0
    [Abstract]

    In males, Leydig cells are the primary source of testosterone, which is necessary for testis development, masculinization, and spermatogenesis. Leydig cells are a valuable cellular model for basic research; thus, it is important to develop an improved method for isolation and purification of Leydig cells from testes. The available methods for

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    Gamete Fusion Assay in Mice
    Author:  Naokazu Inoue, date: 11/20/2021, view: 1112, Q&A: 0
    [Abstract]

    Gamete fusion, which is the final event of fertilization, is a crucial physiological event in the creation of a new fetus. In mammals, sperm IZUMO1 and oocyte IZUMO1R (JUNO) recognition play a role in triggering this process. Gamete fusion occurs through a complex but steady and unfailing intermolecular reaction because fertilization must ensure

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    Quantification of Protein Kinase A (PKA) Activity by An in vitro Radioactive Assay Using the Mouse Sperm Derived Enzyme
    Authors:  Cintia Stival, Carolina Baro Graf, Pablo E. Visconti and Dario Krapf, date: 06/20/2020, view: 2992, Q&A: 0
    [Abstract] In order to acquire fertilizing potential, mammalian sperm must undergo a process known as capacitation, which relies on the early activation of Protein Kinase A (PKA). Frequently, PKA activity is assessed in whole-cell experiments by analyzing the phosphorylation status of its substrates in a western-blot. This technique ...
    Characterization of Mouse Adult Testicular Macrophage Populations by Immunofluorescence Imaging and Flow Cytometry
    Authors:  Noushin Mossadegh-Keller and Michael H. Sieweke, date: 03/05/2019, view: 4697, Q&A: 0
    [Abstract] Testicular macrophages (tMΦ) are the most abundant immune cells residing in the testis, an immune-privileged organ. TMΦ are known to exhibit different functions, such as protecting spermatozoa from auto-immune attack by producing immunosuppressive cytokines and trophic roles in supporting spermatogenesis and male sex hormone production. They also ...
    Teratoma Formation Assay for Assessing Pluripotency and Tumorigenicity of Pluripotent Stem Cells
    Authors:  Shingo Miyawaki, Yohei Okada, Hideyuki Okano and Kyoko Miura, date: 08/20/2017, view: 12932, Q&A: 0
    [Abstract] Pluripotent stem cells such as induced pluripotent stem cells (iPSCs) and embryonic stem cells (ESCs) form teratomas when transplanted into immunodeficient mice. As teratomas contain all three germ layers (endoderm, mesoderm, ectoderm), teratoma formation assay is widely used as an index of pluripotency (Evans and Kaufman, 1981; Hentze et al. ...
    Isolation of THY1+ Undifferentiated Spermatogonia from Mouse Postnatal Testes Using Magnetic-activated Cell Sorting (MACS)
    Authors:  Hung-Fu Liao, Joyce Kuo, Hsien-Hen Lin and Shau-Ping Lin, date: 12/20/2016, view: 9296, Q&A: 0
    [Abstract] In mammals, homeostasis of many tissues rely on a subpopulation of cells, referred to as stem cells, to sustain an appropriate number of undifferentiated and differentiated cells. Spermatogonial stem cells (SSCs) provide the fundamental cellular source for spermatogenesis and are responsible for the lifelong maintenance of the germline pool in ...



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