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Differential expression and localization of ADAM10 and ADAM17 during rat spermatogenesis suggest a role in germ cell differentiation 48
Urriola-Muñoz,Paulina; Lizama,Carlos; Lagos-Cabré,Raúl; Reyes,Juan G; Moreno,Ricardo D.
BACKGROUND: Extracellular metolloproteases have been implied in different process such as cell death, differentiation and migration. Membrane-bound metalloproteases of the ADAM family shed the extracellular domain of many cytokines and receptor controlling auto and para/juxtacrine cell signaling in different tissues. ADAM17 and ADAM10 are two members of this family surface metalloproteases involved in germ cell apoptosis during the first wave of spermatogenesis in the rat, but they have other signaling functions in somatic tissues. RESULTS: In an attempt to further study these two enzymes, we describe the presence and localization in adult male rats. Results showed that both enzymes are detected in germ and Sertoli cells during all the stages of...
Tipo: Journal article Palavras-chave: Testis; Spermatogenesis; Apoptosis; Paracrine; Metalloproteinase.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100031
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Measuring b-Galactosidase activity at pH 6 with a differential pH sensor 69
Acevedo,Cristian; Stach,Matthias H; Amtmann,Anette; Young,Manuel E; Reyes,Juan G; Huebner,Holger; Buchholz,Rainer.
The b-Galactosidase activity at pH 6 is used as a cellular marker to identify senescent cell cultures. The classic method to identify this enzymatic activity is using cytochemical staining with X-Gal after 16 hrs. In this work, a differential pH sensor was used to measure b-Galactosidase activity at pH 6. The measurement is easy and only takes 3 min.
Tipo: Journal article Palavras-chave: B-Galactosidase; Delta milli pH; Differential pH.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582009000200012
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