A qualitative 3D pharmacophore model (a common feature based model or Catalyst HipHop algorithm) was developed for well-known natural product androgen receptor down-regulating agents (ARDAs). The four common chemical features identified included: one hydrophobic group, one ring aromatic group, and two hydrogen bond acceptors. This model served as a template in virtual screening of the Maybridge and NCI databases that resulted in identification of six new ARDAs (EC(50) values 17.5-212 microM). Five of these molecules strongly inhibited the growth of human prostate LNCaP cells. These novel compounds may be used as leads to develop other novel anti-prostate cancer agents.
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http://dx.doi.org/10.1016/j.bmc.2007.03.019 | DOI Listing |
HCA Healthc J Med
December 2024
Michigan State University College of Medicine, East Lansing, MI.
Introduction: While male breast carcinoma is a relatively uncommon occurrence, its incidence is on the rise, potentially attributed to sporadic pathophysiological mechanisms, primarily involving hormonal imbalances. Invasive apocrine carcinoma represents a small fraction of global breast malignancies, with limited instances reported among male patients in the literature. The clinical presentation of an apocrine breast carcinoma closely resembles that of other breast cancer subtypes, as it is most often described as a solitary ulcerative nodular lesion occupying a retro-areolar region of the breast.
View Article and Find Full Text PDFClin Cancer Res
January 2025
Institute of Cancer Research, Sutton, Surrey, United Kingdom.
Purpose: Advanced prostate cancer (PCa) is invariably fatal with the androgen receptor (AR) being a major therapeutic target. AR signaling inhibitors have improved overall survival for men with advanced PCa, but treatment resistance is inevitable and includes reactivation of AR signaling. Novel therapeutic approaches targeting these mechanisms to block tumor growth is an urgent unmet clinical need.
View Article and Find Full Text PDFPharm Res
January 2025
Penn State Cancer Institute, Pennsylvania State University, Hershey, PA, 17033, USA.
Angelica gigas Nakai (AGN) root is a medicinal herbal widely used in traditional medicine in Korea. AGN root ethanolic extracts have been marketed as dietary supplements in the United States for memory health and pain management. We have recently reviewed the pharmacokinetics (PK) and first-pass hepatic metabolism of ingested AGN supplements in humans for the signature pyranocoumarins decursin (D, C 1x), decursinol angelate (DA, C ~ 10x) and their common botanical precursor and hepatic metabolite decursinol (DOH, C ~ 1000x).
View Article and Find Full Text PDFKorean J Clin Oncol
December 2024
Department of Pathology, Safdarjung Hospital, Vardhman Mahavir Medical College, New Delhi, India.
Purpose: Breast cancer subtypes are delineated by human epidermal growth factor receptor 2 (HER2) expression, pivotal in treatment selection. HER2-positive tumors typically respond to targeted therapies, whereas HER2-negative tumors lack HER2 overexpression. However, a subset exhibits low HER2 expression without amplification, termed HER2 low breast cancer.
View Article and Find Full Text PDFProstate
January 2025
Department of Urology, Teikyo University Chiba Medical Center, Chiba, Japan.
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