نتایج جستجو برای: murine mammary adenocarcinoma
تعداد نتایج: 273249 فیلتر نتایج به سال:
BACKGROUND Tamoxifen and the citrus flavonoid tangeretin exhibit similar inhibitory effects on the growth and invasive properties of human mammary cancer cells in vitro; furthermore, the two agents have displayed additive effects in vitro. In this study, we examined whether tangeretin would enhance tamoxifen's therapeutic benefit in vivo. METHODS Female nude mice (n = 80) were inoculated subc...
BACKGROUND Mammary gland tumors are the most common tumors in sexually intact female dogs; however, they are rare in male dogs. This study was conducted to investigate the relationship between sexual hormones and mammary gland tumors in a male dog. CASE PRESENTATION A 13-year-old, intact male Cocker Spaniel presented to the Veterinary Teaching Hospital of Kangwon National University, Republic...
To investigate the role of membrane-type matrix metalloproteinase-1 (MT1-MMP) in mammary gland development and tumorigenesis, transgenic mice overexpressing MT1-MMP in mammary gland under the control of the mouse mammary tumor virus long terminal repeat-promoter were generated. The mouse mammary tumor virus/MT1-MMP transgenic mice displayed abnormalities in 82% of female mammary glands. The abn...
The expression of metalioproteinases, such as type IV collagenase/ gelatinase, enables tumor cells to degrade type IV collagen present in the basement membrane and correlates with metastatic potential of several tumor types. We found that increased levels of rat serum type IV collagenolytic activity are associated with increased 13762NF mammary adenocarcinoma metastases in lungs and lymph nodes...
The present electron microscopic study of a spontaneous mammary tumor (diagnosed histologically as adenocarcinoma) of collared lemming was undertaken in search for the possible presence of particles resembling oncogenic RNA virus particles. The study has demonstrated the presence of a large number of characteristic virus-like particles. The virus-like particles were similar to the ham ster type...
During pregnancy the mammary epithelium and its supporting vasculature rapidly expand to prepare for lactation, resulting in dramatic changes in the micro-environment. In order to investigate the role of oxygenation and metabolism in these processes, the oxygen-responsive component of the hypoxia-inducible factor (HIF) 1 complex, HIF1alpha, was deleted in the murine mammary gland. Although vasc...
The role of the pineal as an oncostatic gland has been studied in animal models of tumorigenesis, especially on those concerning the mammary gland. The general conclusion is that experimental manipulations activating pineal gland, or the administration of melatonin, reduce the incidence and growth rate of chemically-induced murine mammary tumors, while pinealectomy or situations which implicate...
The protein tyrosine phosphatase receptor J, PTPRJ, is a tumor suppressor gene that has been implicated in a range of cancers, including breast cancer, yet little is known about its role in normal breast physiology or in mammary gland tumorigenesis. In this paper we show that PTPRJ mRNA is expressed in normal breast tissue and reduced in corresponding tumors. Meta-analysis revealed that the gen...
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