LAR Receptor Tyrosine Phosphatase Family in Healthy and Diseased Brain

Francisca Cornejo, Bastián I. Cortés, Greg M. Findlay, Gonzalo I. Cancino (Lead / Corresponding author)

Research output: Contribution to journalReview articlepeer-review

1 Citation (Scopus)
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Abstract

Protein phosphatases are major regulators of signal transduction and they are involved in key cellular mechanisms such as proliferation, differentiation, and cell survival. Here we focus on one class of protein phosphatases, the type IIA Receptor-type Protein Tyrosine Phosphatases (RPTPs), or LAR-RPTP subfamily. In the last decade, LAR-RPTPs have been demonstrated to have great importance in neurobiology, from neurodevelopment to brain disorders. In vertebrates, the LAR-RPTP subfamily is composed of three members: PTPRF (LAR), PTPRD (PTPδ) and PTPRS (PTPσ), and all participate in several brain functions. In this review we describe the structure and proteolytic processing of the LAR-RPTP subfamily, their alternative splicing and enzymatic regulation. Also, we review the role of the LAR-RPTP subfamily in neural function such as dendrite and axon growth and guidance, synapse formation and differentiation, their participation in synaptic activity, and in brain development, discussing controversial findings and commenting on the most recent studies in the field. Finally, we discuss the clinical outcomes of LAR-RPTP mutations, which are associated with several brain disorders.

Original languageEnglish
Article number659951
Number of pages21
JournalFrontiers in Cell and Developmental Biology
Volume9
DOIs
Publication statusPublished - 13 Dec 2021

Keywords

  • brain disorders
  • protein phosphatase
  • PTPdelta
  • PTPsigma
  • receptor protein tyrosine phosphatase (RPTP)

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