Zobrazeno 1 - 10
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pro vyhledávání: '"Benjamin S. Leung"'
Autor:
Benjamin S. Leung
The concept that hormones influence tumor growth originated in 1889 with the proposal of Albert Schinzinger who suggested that breast cancer is related to the ovaries. Several years later, Sir George Beatson observed that remission of disseminated br
Publikováno v:
Journal of Cellular Biochemistry. 59:409-417
Although there is a growing body of evidence that 17β-hydroxysteroid oxidoteductase plays a role the regulation of steroid levels in epithelial tumors of the endometrium and breast, out knowledge of its role in other gynecologic tumors is limited. I
Publikováno v:
Journal of Cellular Biochemistry. 46:125-133
To elucidate the relationship between epidermal growth factor (EGF)/transforming growth factor (TGF-alpha) and estradiol-17 beta (E) in cell proliferation, we examined their effects on the breast cancer cell line, CAMA-1. While E was able to consiste
Autor:
Kamalini Das, George E. Tagatz, Hugh C. Hensleigh, Laurence E. Stout, William R. Phipps, Benjamin S. Leung
Publikováno v:
Fertility and Sterility. 55:1000-1004
Objective Immature mammalian oocytes cultured in vitro undergo inadequate cytoplasmic maturation and hence have a limited potential for fertilization. Our primary objective was to determine if the addition of epidermal growth factor (EGF) to the in v
Publikováno v:
Biochemical and Biophysical Research Communications. 170:569-575
To elucidate the possible roles of proto-oncogenes and growth factors in estrogen-regulated cell proliferation of human breast and gynecologic cancers, we have determined the gene expressions of c-myc, transforming growth factor-alpha and beta 1 (TGF
Publikováno v:
Gynecologic oncology. 85(1)
Objectives. The aim of this study was to determine cervical cancer cell sensitivity to chemotherapy-induced apoptosis based on human papillomavirus (HPV) status. Methods. CaSki (HPV-positive) and C33A (HPV-negative) cells were treated with camptothec
Publikováno v:
Biochemical and biophysical research communications. 263(1)
Our objective is to test the hypothesis that inhibition of mitogen-activated protein (MAP) kinase kinase (MEK) with PD98059 in human luteinized granulosa cells will block epidermal growth (EGF)-stimulated MAP kinase activity and induce apoptosis. Lut
Publikováno v:
Fertility and sterility. 71(6)
Objective: To assess the expression of messenger RNA (mRNA) for estrogen receptors α and β in the vaginal walls and uterosacral ligaments of premenopausal and postmenopausal women. Design: In vitro experiment. Setting: Academic research environment
Autor:
Benjamin S. Leung, Qingqing Zhang, Helen T. Leung, Hongjun Ji, Ruoping Zhang, Laurence E. Stout
Publikováno v:
Journal of cellular biochemistry. 54(3)
Tamoxifen has been an effective antiestrogen in suppressing breast cancer growth which is estrogen-responsive or dependent. Early studies have provided circumstantial evidence that transforming growth factor-beta (TGF-beta) may be an autocrine mediat
Autor:
Li Zhou, Benjamin S. Leung
Publikováno v:
Biochimica et biophysica acta. 1180(2)
Regulation of ovarian cancer growth is poorly understood. In this study, the effects of EGF, TGF alpha and TGF beta 1 on two ovarian cancer cell lines (OVCAR-3 and CAOV-3) were investigated. The results showed that EGF/TGF alpha stimulated cell growt