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The dipeptidyl peptidase IV family in cancer and cell biology
Denise M T Yu1, Tsun-Wen Yao, Sumaiya Chowdhury
1AW Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital, University of Sydney, Sydney, Australia.
Abstract:
Of the 600+ known proteases identified to date in mammals, a significant percentage is involved or implicated in pathogenic and cancer processes. The dipeptidyl peptidase IV (DPIV) gene family, comprising four enzyme members [DPIV (EC 3.4.14.5), fibroblast activation protein, DP8 and DP9] and two nonenzyme members [DP6 (DPL1) and DP10 (DPL2)], are interesting in this regard because of their multiple diverse functions, varying patterns of distribution/localization and subtle, but significant, differences in structure/substrate recognition. In addition, their engagement in cell biological processes involves both enzymatic and nonenzymatic capabilities. This article examines, in detail, our current understanding of the biological involvement of this unique enzyme family and their overall potential as therapeutic targets.
Insights
The dipeptidyl peptidase IV (DPIV) gene family, involved in disease and cancer, has diverse functions and therapeutic potential. Understanding their enzymatic and nonenzymatic roles is key.
Area of Science:
- Biochemistry
- Molecular Biology
- Enzymology
Background:
- Proteases play crucial roles in mammalian biology, with many implicated in pathogenic and cancer processes.
- The dipeptidyl peptidase IV (DPIV) gene family exhibits diverse functions, localization, and substrate specificities.
- This family includes both enzymatic and nonenzymatic members, highlighting complex biological involvement.
Purpose of the Study:
- To provide a detailed examination of the biological roles of the DPIV gene family.
- To explore the therapeutic potential of DPIV family members as drug targets.
Main Methods:
- Literature review and analysis of existing research on the DPIV gene family.
- Comparative analysis of enzyme structure, substrate recognition, and biological functions.
- Assessment of the involvement of DPIV family members in disease and cancer.
Main Results:
- The DPIV gene family comprises four enzymes and two nonenzymatic members with distinct characteristics.
- These enzymes and nonenzymes engage in cell biological processes through both enzymatic and nonenzymatic mechanisms.
- Significant differences in structure and substrate recognition exist within the family.
Conclusions:
- The DPIV gene family represents a unique group of proteins with multifaceted biological activities.
- Their involvement in disease pathogenesis and cancer suggests substantial potential as therapeutic targets.
- Further research into their complex roles could lead to novel treatment strategies.
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