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1.
Cancer Sci ; 114(5): 2014-2028, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-36715549

RESUMEN

Increasing evidence indicates that angiogenesis plays a pivotal role in tumor progression. Formin-like 2 (FMNL2) is well-known for promoting metastasis; however, the molecular mechanisms by which FMNL2 promotes angiogenesis in colorectal cancer (CRC) remain unclear. Here, we found that FMNL2 promotes angiogenesis and metastasis of CRC in vitro and in vivo. The GDB/FH3 domain of FMNL2 directly interacts with epidermal growth factor-like protein 6 (EGFL6). Formin-like 2 promotes EGFL6 paracrine signaling by exosomes to regulate angiogenesis in CRC. Cytoskeleton associated protein 4 (CKAP4) is a downstream target of EGFL6 and is involved in CRC angiogenesis. Epidermal growth factor-like protein 6 binds to the N-terminus of CKAP4 to promote the migration of HUVECs by activating the ERK/MMP pathway. These findings suggest that FMNL2 promotes the migration of HUVECs and enhances angiogenesis and tumorigenesis in CRC by regulating the EGFL6/CKAP4/ERK axis. Therefore, the EGFL6/CKAP4/ERK axis could be a candidate therapeutic target for CRC treatment.


Asunto(s)
Neoplasias Colorrectales , Citoesqueleto , Humanos , Proteínas de Unión al Calcio/genética , Moléculas de Adhesión Celular/metabolismo , Línea Celular Tumoral , Neoplasias Colorrectales/patología , Citoesqueleto/metabolismo , Familia de Proteínas EGF/metabolismo , Forminas/metabolismo , Proteínas de la Membrana/metabolismo , Quinasas MAP Reguladas por Señal Extracelular/metabolismo
2.
Eur J Pharmacol ; 947: 175694, 2023 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-36967077

RESUMEN

Focal adhesion kinase (FAK), also known as protein tyrosine kinase 2 (PTK2), is a ubiquitously expressed non-receptor tyrosine kinase, that plays a pivotal role in integrin-mediated signal transduction. Endothelial FAK is upregulated in many types of cancer and promotes tumorigenesis and tumor progression. However, recent studies have shown that pericyte FAK has the opposite effect. This review article dissects the mechanisms, by which endothelial cells (ECs) and pericyte FAK regulate angiogenesis, with an emphasis on the Gas6/Axl pathway. In particular, this article discusses the role of pericyte FAK loss on angiogenesis during tumorigenesis and metastasis. In addition, the existing challenges and future application of drug-based anti-FAK targeted therapies will be discussed to provide a theoretical basis for further development and use of FAK inhibitors.


Asunto(s)
Células Endoteliales , Quinasa 1 de Adhesión Focal , Neovascularización Patológica , Humanos , Carcinogénesis/metabolismo , Células Endoteliales/metabolismo , Quinasa 1 de Adhesión Focal/metabolismo , Proteína-Tirosina Quinasas de Adhesión Focal/metabolismo , Neoplasias/patología , Neovascularización Patológica/metabolismo , Pericitos/metabolismo , Pericitos/patología
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