Multi-faceted role of LRP1 in the immune system.

Front Immunol

Department of Hematopoietic Biology and Malignancy, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States.

Published: April 2023

AI Article Synopsis

  • GVHD is a major complication after allogeneic stem cell transplants, necessitating prophylactic and treatment strategies, but current therapies have significant limitations and mortality rates.
  • New research is focusing on LRP1, a receptor traditionally associated with lipoproteins, as a potential target for preventing and treating GVHD, based on preliminary findings that its deletion in donor T cells lowers GVHD-related mortality.
  • The review highlights the need for more studies on LRP1's role in T cell biology and its potential implications for anti-GVHD therapies, as there is a lack of research on this receptor in immune cells.

Article Abstract

Graft versus host disease (GVHD) represents the major complication after allogeneic hematopoietic stem cell transplantation (Allo-SCT). GVHD-prone patients rely on GVHD prophylaxis (e.g. methotrexate) and generalized anti-GVHD medical regimen (glucocorticoids). New anti-GVHD therapy strategies are being constantly explored, however there is an urgent need to improve current treatment, since GVHD-related mortality reaches 22% within 5 years in patients with chronic GVHD. This review is an attempt to describe a very well-known receptor in lipoprotein studies - the low-density lipoprotein receptor related protein 1 (LRP1) - in a new light, as a potential therapeutic target for GVHD prevention and treatment. Our preliminary studies demonstrated that LRP1 deletion in donor murine T cells results in significantly lower GVHD-related mortality in recipient mice with MHC (major histocompatibility complex) -mismatched HSCT. Given the importance of T cells in the development of GVHD, there is a significant gap in scientific literature regarding LRP1's role in T cell biology. Furthermore, there is limited research interest and publications on this classical receptor molecule in other immune cell types. Herein, we endeavor to summarize existing knowledge about LRP1's role in various immune cells to demonstrate the possibility of this receptor to serve as a novel target for anti-GVHD treatment.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10069629PMC
http://dx.doi.org/10.3389/fimmu.2023.1166189DOI Listing

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