Journal
JOURNAL OF CELLULAR PHYSIOLOGY
Volume 236, Issue 4, Pages 2443-2458Publisher
WILEY
DOI: 10.1002/jcp.30063
Keywords
cancer; cancer stem cells; NANOG; signaling pathways
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Cancer stem cells (CSCs) are a unique population in tumors, and the transcription factor NANOG plays a pivotal role in conferring CSCs with their characteristics and functions. Understanding and targeting NANOG may be key in diminishing CSCs, sensitizing tumors to chemotherapy, and eradicating cancer cells.
Cancer stem cells (CSCs) are a unique population in the tumor, but they only comprise 2%-5% of the tumor bulk. Although CSCs share several features with embryonic stem cells, CSCs can give rise to the tumor cells. CSCs overexpress embryonic transcription factorNANOG, which is downregulated in differentiated tissues. This transcription factor confers CSC's stemness, unlimited self-renewal, metastasis, invasiveness, angiogenesis, and drug-resistance with the assistance ofWNT, OCT4, SOX2, Hedgehog,BMI-1, and other complexes. NANOG facilitates CSCs development via multiple pathways, like angiogenesis and lessening E-cadherin expression levels, which paves the road for metastasis. Moreover, NANOG represses apoptosis and leads to drug-resistance. This review aims to highlight the pivotal role of NANOG and the pertained pathways in CSCs. Also, this current study intends to demonstrate that targeting NANOG can dimmish the CSCs, sensitize the tumor to chemotherapy, and eradicate the cancer cells.
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