期刊
CURRENT OPINION IN HEMATOLOGY
卷 9, 期 4, 页码 294-302出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/00062752-200207000-00006
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- NCI NIH HHS [CA16672, R01 CA89346, P01 CA55164] Funding Source: Medline
Members of the nuclear receptor superfamily, including retinoic acid receptors (RARs), retinoid X receptors (RXRs), and vitamin D receptors (VDRs), are transcription factors that control many important cellular functions, and their ligands are widely used in several clinical indications. The latest family member is the peroxisome proliferator-activated receptor-gamma (PPARgamma), which is highly expressed in normal monocytes, different leukemias, and epithelial malignancies. PPARgamma ligands have been developed and signal differentiation, growth arrest, and apoptosis. PPARgamma forms heterodimers with RXR, and ligation of both receptors is required for maximal signaling. PPARgamma signaling, its expression in hematologic malignancies, and role in differentiation are discussed. Interactions of PPARgamma with X-RARalpha, protein kinase R (PKR), PTEN, and mitogen-activated protein kinase (MAPK) have been described. PPARgamma ligands have been developed for the management of diabetes, but new and more potent ligands, including triterpenoids, are being investigated as therapeutic agents for epithelial and hematologic malignancies. (C) 2002 Lippincott Williams Wilkins, Inc.
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