Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2006-3-14
pubmed:abstractText
Recently we have identified a novel gene mina53 (mina), which is a direct transcriptional target of oncoprotein Myc. Mina53 protein was shown to be highly expressed in tumour cells and to play a role in cell proliferation. Here we report the expression of Mina53 in mouse testis, which contains proliferating cells and expresses many cancer-related genes. Immunohistochemical studies by using newly produced monoclonal antibody to Mina53 showed that Mina53 was expressed in the nuclei of spermatogonia. Mina53 was also expressed in meiotic prophase cells such as preleptotene, leptotene and zygotene, and weakly in early pachytene spermatocytes, but was absent in late pachytene spermatocytes, spermatids and mature sperm. The expression pattern of Mina53 was quite similar to that of proliferation cell nuclear antigen (PCNA). Using experimental cryptorchid testis, it was found that Mina53 was highly expressed in undifferentiated spermatogonia, which were PCNA-positive. These results suggest that Mina53 is prominently expressed in proliferating, undifferentiated spermatogonia, and plays a role in cell proliferation from the spermatogonial stage to the meiotic prophase in spermatogenesis, but not in meiotic divisions per se.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0105-6263
pubmed:author
pubmed:issnType
Print
pubmed:volume
29
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
323-30
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Expression of Mina53, a product of a Myc target gene in mouse testis.
pubmed:affiliation
Division of Human Genetics, Department of Forensic Medicine, Kurume University School of Medicine, Kurume, Japan. tsuneoka@med.kurume-u.ac.jp
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't