Proto-oncogenes c-jun and c-fos are down-regulated in human endometrium during pregnancy: relationship to oestrogen receptor status

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Proto-oncogenes c-jun and c-fos are down-regulated in human endometrium during pregnancy: relationship to oestrogen receptor status.

Oestrogen is the major stimulatory factor in endometrial cell proliferation. Animal and in-vitro studies have shown that proto-oncogenes c-fos and c-jun are regulated by oestrogen receptor (ER) complex. We have previously shown by Northern blot analysis that proto-oncogenes c-fos and c-jun are strongly expressed in human proliferative and early to mid-secretory endometrium. In this study, we ex...

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Expression of c-jun, jun B and jun D proto-oncogenes in human peripheral-blood granulocytes.

We have found that purified human peripheral-blood granulocytes express constitutively significant levels of proto-oncogenes c-jun, jun B and jun D mRNA. Upon functional activation of granulocytes by 4 beta-phorbol 12-myristate 13-acetate (PMA), the levels of c-jun, jun B and jun D transcripts were increased. The three jun genes showed a similar time course in their induction by PMA, maximal mR...

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Helicobacter pylori activates mitogen-activated protein kinase cascades and induces expression of the proto-oncogenes c-fos and c-jun.

Helicobacter pylori is an etiological agent in the development of mucosa-associated lymphoid tissue lymphoma and gastric adenocarcinoma. Patients infected with H. pylori carry a 3-6-fold increased risk of developing cancer compared with uninfected individuals. H. pylori strains expressing the cytotoxin-associated antigen A (CagA) are more frequently associated with the development of neoplasia ...

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Hexachlorobenzene-induced early changes in ornithine decarboxylase and protein tyrosine kinase activities, polyamines and c-Myc, c-Fos and c-Jun proto-oncogenes in rat liver.

Hexachlorobenzene (HCB) is a lipophilic chemical compound that is widely distributed in the environment. HCB is known to cause liver tumors in experimental animals. In the present study the in vivo effect of HCB treatment on ornithine decarboxylase (ODC) and protein tyrosine kinase (PTK) activities, free polyamine content, and c-Myc, c-Fos, and c-Jun protein levels in rat liver were investigate...

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Expressions of c-jun and jun-B proto-oncogenes in odontoblasts during development of bovine tooth germs.

c-jun and jun-B genes are among the nuclear proto-oncogenes induced by growth factors such as the TGF-beta superfamily and play important roles in cell differentiation. These gene products enhance expressions of proteins including osteocalcin, alkaline phosphatase, and collagens. On the other hand, it is well-known that the TGF-beta superfamily affects odontoblast differentiation, and that diff...

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ژورنال

عنوان ژورنال: Molecular Human Reproduction

سال: 1996

ISSN: 1360-9947,1460-2407

DOI: 10.1093/molehr/2.12.979