The RELT Family of Proteins: An Increasing Awareness of Their Importance for Cancer, the Immune System, and Development

This review highlights Receptor Expressed in Lymphoid Tissues (RELT), a Tumor Necrosis Factor Superfamily member, and its two paralogs, RELL1 and RELL2. Collectively, these three proteins are referred to as RELTfms and have gained much interest in recent years due to their association with cancer an...

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Main Authors: John K. Cusick, Jessa Alcaide, Yihui Shi
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Series:Biomedicines
Subjects:
Online Access:https://www.mdpi.com/2227-9059/11/10/2695
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author John K. Cusick
Jessa Alcaide
Yihui Shi
author_facet John K. Cusick
Jessa Alcaide
Yihui Shi
author_sort John K. Cusick
collection DOAJ
description This review highlights Receptor Expressed in Lymphoid Tissues (RELT), a Tumor Necrosis Factor Superfamily member, and its two paralogs, RELL1 and RELL2. Collectively, these three proteins are referred to as RELTfms and have gained much interest in recent years due to their association with cancer and other human diseases. A thorough knowledge of their physiological functions, including the ligand for RELT, is lacking, yet emerging evidence implicates RELTfms in a variety of processes including cytokine signaling and pathways that either promote cell death or survival. T cells from mice lacking RELT exhibit increased responses against tumors and increased inflammatory cytokine production, and multiple lines of evidence indicate that RELT may promote an immunosuppressive environment for tumors. The relationship of individual RELTfms in different cancers is not universal however, as evidence indicates that individual RELTfms may be risk factors in certain cancers yet appear to be protective in other cancers. RELTfms are important for a variety of additional processes related to human health including microbial pathogenesis, inflammation, behavior, reproduction, and development. All three proteins have been strongly conserved in all vertebrates, and this review aims to provide a clearer understanding of the current knowledge regarding these interesting proteins.
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spelling doaj.art-ea749708e9e14bb9b4af25a335eec92a2023-11-19T15:45:46ZengMDPI AGBiomedicines2227-90592023-10-011110269510.3390/biomedicines11102695The RELT Family of Proteins: An Increasing Awareness of Their Importance for Cancer, the Immune System, and DevelopmentJohn K. Cusick0Jessa Alcaide1Yihui Shi2College of Medicine, California Northstate University, Elk Grove, CA 95757, USACollege of Medicine, California Northstate University, Elk Grove, CA 95757, USACollege of Medicine, California Northstate University, Elk Grove, CA 95757, USAThis review highlights Receptor Expressed in Lymphoid Tissues (RELT), a Tumor Necrosis Factor Superfamily member, and its two paralogs, RELL1 and RELL2. Collectively, these three proteins are referred to as RELTfms and have gained much interest in recent years due to their association with cancer and other human diseases. A thorough knowledge of their physiological functions, including the ligand for RELT, is lacking, yet emerging evidence implicates RELTfms in a variety of processes including cytokine signaling and pathways that either promote cell death or survival. T cells from mice lacking RELT exhibit increased responses against tumors and increased inflammatory cytokine production, and multiple lines of evidence indicate that RELT may promote an immunosuppressive environment for tumors. The relationship of individual RELTfms in different cancers is not universal however, as evidence indicates that individual RELTfms may be risk factors in certain cancers yet appear to be protective in other cancers. RELTfms are important for a variety of additional processes related to human health including microbial pathogenesis, inflammation, behavior, reproduction, and development. All three proteins have been strongly conserved in all vertebrates, and this review aims to provide a clearer understanding of the current knowledge regarding these interesting proteins.https://www.mdpi.com/2227-9059/11/10/2695RELTRELL1RELL2TNFRSFcancerapoptosis
spellingShingle John K. Cusick
Jessa Alcaide
Yihui Shi
The RELT Family of Proteins: An Increasing Awareness of Their Importance for Cancer, the Immune System, and Development
Biomedicines
RELT
RELL1
RELL2
TNFRSF
cancer
apoptosis
title The RELT Family of Proteins: An Increasing Awareness of Their Importance for Cancer, the Immune System, and Development
title_full The RELT Family of Proteins: An Increasing Awareness of Their Importance for Cancer, the Immune System, and Development
title_fullStr The RELT Family of Proteins: An Increasing Awareness of Their Importance for Cancer, the Immune System, and Development
title_full_unstemmed The RELT Family of Proteins: An Increasing Awareness of Their Importance for Cancer, the Immune System, and Development
title_short The RELT Family of Proteins: An Increasing Awareness of Their Importance for Cancer, the Immune System, and Development
title_sort relt family of proteins an increasing awareness of their importance for cancer the immune system and development
topic RELT
RELL1
RELL2
TNFRSF
cancer
apoptosis
url https://www.mdpi.com/2227-9059/11/10/2695
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