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The metastatic spread of tumor cells to distant anatomical locations is a critical cause for disease progression and leads to more than 90 % of cancer-related deaths. IQ motif-containing GTPase-activating protein 1 (IQGAP1), a prominent regulator in the cancer metastasis process, is a scaffold protein that interacts with components of the cytoskeleton. As a critical node within the small GTPase network, IQGAP1 acts as a binding partner of several small GTPases, which in turn function as molecular switches to control most cellular processes, including cell migration and invasion. Given the significant interaction between IQGAP1 and small GTPases in cancer metastasis, we briefly elucidate the role of IQGAP1 in regulating cancer metastasis and the varied interactions existing between IQGAP1 and small GTPases. In addition, the potential regulators for IQGAP1 activity and its interaction with small GTPases are also incorporated in this review. Overall, we comprehensively summarize the role of IQGAP1 in cancer tumorigenicity and metastasis, which may be a potential anti-tumor target to restrain cancer progression. Copyright © 2021 The Authors. Published by Elsevier Masson SAS.. All rights reserved.


Xiafeng Peng, Tiejun Wang, Han Gao, Xin Yue, Weiqi Bian, Jie Mei, Yan Zhang. The interplay between IQGAP1 and small GTPases in cancer metastasis. Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie. 2021 Mar;135:111243

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PMID: 33434854

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