title: Hedgehog signaling in prostate epithelial-mesenchymal growth regulation.
abstract: The prostate gland plays an important role in male reproduction, and is also an organ prone to diseases such as benign prostatic hyperplasia (BPH) and prostate cancer. The prostate consists of ducts with an inner layer of epithelium surrounded by stroma. Reciprocal signaling between these two cell compartments is instrumental to normal prostatic development, homeostasis, regeneration, as well as tumor formation. Hedgehog (HH) signaling is a master regulator in numerous developmental processes. In many organs, HH plays a key role in epithelial-mesenchymal signaling that regulates organ growth and tissue differentiation, and abnormal HH signaling has been implicated in the progression of various epithelial carcinomas. In this review, we focus on recent studies exploring the multipotency of endogenous postnatal and adult epithelial and stromal stem cells and studies addressing the role of HH in prostate development and cancer. We discuss the implications of the results for a new understanding of prostate development and disease. Insight into the cellular and molecular mechanisms underlying epithelial-mesenchymal growth regulation should provide a basis for devising innovative therapies to combat diseases of the prostate.
authors: Developmental Biology Program, Sloan Kettering Institute, New York, NY 10065, USA; Biochemistry, Cell and Molecular Biology Program, Weill Graduate School of Medical Sciences of Cornell University, New York, NY 10065, USA.
authors: Yu-Ching
authors: YC
authors: Peng
authors: Developmental Biology Program, Sloan Kettering Institute, New York, NY 10065, USA; Biochemistry, Cell and Molecular Biology Program, Weill Graduate School of Medical Sciences of Cornell University, New York, NY 10065, USA. Electronic address: joynera@mskcc.org.
authors: Alexandra L
authors: AL
authors: Joyner
mesh_terms: D053687:Adult Stem Cells / Q000378:metabolism*; D000818:Animals; D058750:Epithelial-Mesenchymal Transition / Q000502:physiology*; D018507:Gene Expression Regulation, Developmental / Q000502:physiology*; D053823:Hedgehog Proteins / Q000378:metabolism*; D006801:Humans; D008297:Male; D051379:Mice; D011467:Prostate / Q000196:embryology* / Q000254:growth & development* / Q000378:metabolism; D011471:Prostatic Neoplasms / Q000378:metabolism / Q000503:physiopathology*; D015398:Signal Transduction / Q000502:physiology*; D013045:Species Specificity
chemical_list: D053823:Hedgehog Proteins
keywords: Epithelial–mesenchymal interaction; Prostate; Prostate cancer; SHH; Stem cells; Stroma
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