Atypical chemokine receptors: emerging therapeutic targets in cancer
Robert J Torphy1, Elliott J Yee1, Richard D Schulick1
1Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.
Abstract:
Atypical chemokine receptors (ACKRs) regulate the availability of chemokines via chemokine scavenging, while also having the capacity to elicit downstream function through β-arrestin coupling. This contrasts with conventional chemokine receptors that directly elicit immune cell migration through G protein-coupled signaling. The significance of ACKRs in cancer biology has previously been poorly understood, but recent findings have highlighted the multifaceted role of these receptors in tumorigenesis and immune response modulation within the tumor microenvironment (TME). Additionally, recent research has expanded our understanding of the function of several receptors including GPR182, CCRL2, GPR1, PITPNM3, and C5aR2 that share similarities with the ACKR family. In this review, we discuss these recent developments, and highlight the opportunities and challenges of pharmacologically targeting ACKRs in cancer.
Insights
Atypical chemokine receptors (ACKRs) scavenge chemokines and influence the tumor microenvironment. Targeting these receptors offers new cancer treatment strategies.
Area of Science:
- Oncology
- Immunology
- Molecular Biology
Background:
- Atypical chemokine receptors (ACKRs) regulate chemokine availability through scavenging and can signal via β-arrestin.
- Unlike conventional receptors, ACKRs do not primarily mediate immune cell migration via G protein signaling.
- The role of ACKRs in cancer biology and the tumor microenvironment (TME) is increasingly recognized.
Purpose of the Study:
- To review recent advancements in understanding the function of ACKRs in cancer.
- To discuss related receptors like GPR182, CCRL2, GPR1, PITPNM3, and C5aR2.
- To explore the therapeutic potential and challenges of targeting ACKRs in oncology.
Main Methods:
- Literature review of recent findings on ACKR function in cancer.
- Analysis of studies on related chemokine receptor families.
- Discussion of pharmacological targeting strategies.
Main Results:
- ACKRs play multifaceted roles in tumorigenesis and immune modulation within the TME.
- Several receptors (GPR182, CCRL2, GPR1, PITPNM3, C5aR2) show ACKR-like functions.
- Targeting ACKRs presents both opportunities and challenges for cancer therapy.
Conclusions:
- ACKRs are significant players in cancer development and immune response.
- Further research into ACKR-like receptors can uncover new therapeutic avenues.
- Pharmacological targeting of ACKRs holds promise for novel cancer treatments.
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