Mitochondria isolated from normal mammary glands taken from lactating and nonlactating C3H mice were compared with those isolated from mammary adenocarcinomas. Functional mitochondria could be obtained from the normal mammary glands only when milk was not present in the tissue prior to homogenization and when bovine serum albumin was added to the isolation medium. Albumin also protected tumor m...

The role of the PEA3 subfamily of Ets transcription factors in breast neoplasia is controversial. Although overexpression of PEA3 (E1AF/ETV4), and of the related factors ERM (ETV5) and ER81 (ETV1), have been observed in human and mouse breast tumors, PEA3 factors have also been ascribed a tumor suppressor function. Here, we utilized the MMTV/Wnt1 mouse strain to further interrogate the role of ...

Mitochondria isolated from normal mammary glands taken from lactating and nonlactating C3H mice were compared with those isolated from mammary adenocarcinomas. Functional mitochondria could be obtained from the normal mammary glands only when milk was not present in the tissue prior to homogenization and when bovine serum albumin was added to the isolation medium. Albumin also protected tumor m...

Treatment of mouse mammary glands with a high concentration of 7,12-dimethylbenzo(a)anthracene in whole organ culture was reported by Banerjee et al. to transform foci of lobuloalveoli to a hormone-independent state, and to give rise to mammary hyperplastic outgrowths and adenocarcinomas in vivo. In the present study using the identical system, mammary glands of BALB/c mice were exposed to 7,12...

despite of the fact that the vulva contains a high density of apocrine and anogenital mammary glands in addition to eccrine glands and folliculosebaceous units, the benign vulvar adnexal tumours are rare. though the varied clinical presentation and diverse histopathological spectrum of vulvar neoplasms has amazed the pathologists, only few studies have been reported in literature. the present f...

The hormonal stimulation of mammary gland morphogenesis is believed to occur through growth factor receptor signaling pathways. To determine the importance of the epidermal growth factor receptor (EGFR) pathway, we examined extracts of inguinal mammary glands from prepubertal and pubertal mice for tyrosine-phosphorylated EGFR and other erbB receptors. Tyrosine phosphorylation of both EGFR and e...

  Fibroadenoma of the vulva is an uncommon lesion. It has been suggested that they originate from vulvar mammary like other glands. A few examples of benign and malignant vulvar tumors arising from such glands have been reported. A 32-year-old woman was referred with a subcutaneous mass at the vulva. The patient treated by simple excisional surgery with adequate peripheral margin. Histologic...

STAT3 is the key mediator of apoptosis in mammary gland. We demonstrate here that LIF is the physiological activator of STAT3, because in involuting mammary glands of Lif(-/-) mice, pSTAT3 is absent and the STAT3 target, C/EBPdelta, is not upregulated. Similar to Stat3 knockouts, Lif(-/-) mammary glands exhibit delayed involution, reduced apoptosis and elevated levels of p53. Significantly, Lif...

Antitumour activity is an effect attributed to probiotics and fermented foods. Here, the immune cells in mammary glands and cytokine concentration in serum were analyzed using mice fed with milk fermented by Lactobacillus helveticus R389 or L89 (proteolytic-deficient variant), injected or not with breast tumour cells. Mice were fed 7 days with fermented milk, injected with breast tumour cells a...

A case of revealing a rare pathology for the mammary glands in men - intraductal papilloma is presented. There features clinical course, mammography and ultrasound visualization results histology. The final diagnosis «intraductal papilloma» established only on basis pathomorphological immunohistochemical studies obtained during excisional biopsy.