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Updated: Jun 14, 2025

Spatiotemporal Control of Protein Activity through Optogenetic Allosteric Regulation
Published on: October 4, 2024
PAQR4: From spatial regulation of cell signaling to physiological homeostasis and diseases
1Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, China; Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310018, China; Postgraduate Training base Alliance of Wenzhou Medical University (Zhejiang Cancer Hospital), Hangzhou, Zhejiang 310022, China.
Abstract:
Progestin and adipoQ receptor family member 4 (PAQR4) gene is a recently discovered seven-transmembrane protein-coding gene that belongs to the PAQR family. An increasing amount of evidence suggests that PAQR4 is upregulated in multiple tumors and participates in tumor progression and chemotherapy resistance via different signaling pathways; PAQR4 regulates cellular ceramide homeostasis by influencing sphingolipid metabolism and glycerol metabolism, and plays a significant role in adipose tissue remodeling. Meanwhile, it is known that the differential expression of PAQR4 is associated with the occurrence of various diseases and is a potential biomarker and therapeutic target. This article conducts a systematic review of the subcellular localization of PAQR4, its topological structure characteristics, and its functions in cancer occurrence, metabolic diseases, and fertility, and provides clues for the future research and translational application of PAQR4.
Insights
Progestin and adipoQ receptor family member 4 (PAQR4) is linked to cancer progression and metabolic diseases. This review explores PAQR4
Area of Science:
- Molecular biology and oncology
- Cellular and metabolic pathways
Background:
- Progestin and adipoQ receptor family member 4 (PAQR4) is a seven-transmembrane protein.
- PAQR4 is increasingly recognized for its role in tumor progression and chemotherapy resistance.
- Its dysregulation is associated with various diseases, highlighting its potential as a biomarker.
Purpose of the Study:
- To systematically review the subcellular localization and structural characteristics of PAQR4.
- To elucidate the functions of PAQR4 in cancer, metabolic diseases, and fertility.
- To provide insights for future research and translational applications of PAQR4.
Main Methods:
- Systematic literature review.
- Analysis of existing data on PAQR4's localization, structure, and function.
- Integration of findings related to cancer, metabolism, and fertility.
Main Results:
- PAQR4 influences sphingolipid and glycerol metabolism, affecting cellular ceramide homeostasis.
- PAQR4 plays a role in adipose tissue remodeling.
- Evidence suggests PAQR4's involvement in multiple tumor types and its impact on treatment outcomes.
Conclusions:
- PAQR4 is a significant factor in cancer development, metabolic regulation, and potentially fertility.
- Understanding PAQR4's structure and function is crucial for developing novel therapeutic strategies.
- PAQR4 represents a promising target for future clinical applications in oncology and metabolic disorders.
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