The role of Lin28A and Lin28B in cancer beyond Let‐7

Author:

Cotino‐Nájera Sandra1,García‐Villa Enrique1,Cruz‐Rosales Samantha1,Gariglio Patricio1,Díaz‐Chávez José234ORCID

Affiliation:

1. Departamento de Genética y Biología Molecular Centro de Investigación y de Estudios Avanzados (CINVESTAV) Mexico City Mexico

2. Departamento de Biología Celular, Facultad de Ciencias UNAM Mexico City Mexico

3. Unidad de Investigación Biomédica en Cáncer, Instituto de Investigaciones Biomédicas UNAM/Instituto Nacional de Cancerología Mexico City Mexico

4. Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud Mexico

Abstract

Lin28A and Lin28B are paralogous RNA‐binding proteins that play fundamental roles in development and cancer by regulating the microRNA family of tumor suppressor Let‐7. Although Lin28A and Lin28B share some functional similarities with Let‐7 inhibitors, they also have distinct expression patterns and biological functions. Increasing evidence indicates that Lin28A and Lin28B differentially impact cancer stem cell properties, epithelial‐mesenchymal transition, metabolic reprogramming, and other hallmarks of cancer. Therefore, it is important to understand the overexpression of Lin28A and Lin28B paralogs in specific cancer contexts. In this review, we summarize the main similarities and differences between Lin28A and Lin28B, their implications in different cellular processes, and their role in different types of cancer. In addition, we provide evidence of other specific targets of each lin28 paralog, as well as the lncRNAs and miRNAs that promote or inhibit its expression, and how this impacts cancer development and progression.

Publisher

Wiley

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