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Potential role of N-myristoyltransferase in cancer
Ponniah Selvakumar1, Ashakumary Lakshmikuttyamma, Anuraag Shrivastav
1Department of Pathology and Laboratory Medicine, College of Medicine, and Health Research Division, Saskatchewan Cancer Agency, University of Saskatchewan, 20 Campus Drive, Saskatoon, Sask., Canada S7N 4H4.
Abstract:
Colorectal cancer is the second leading cause of malignant death, and better preventive strategies are needed. The treatment of colonic cancer remains difficult because of the lack of effective chemotherapeutic agents; therefore it is important to continue to search for cellular functions that can be disrupted by chemotherapeutic drugs resulting in the inhibition of the development and progression of cancer. The current knowledge of the modification of proteins by myristoylation involving myristoyl-CoA: protein N-myristoyltransferase (NMT) is in its infancy. This process is involved in the pathogenesis of cancer. We have reported for the first time that NMT activity and protein expression were higher in human colorectal cancer, gallbladder carcinoma and brain tumors. In addition, an increase in NMT activity appeared at an early stage in colonic carcinogenesis. It is conceivable therefore that NMT can be used as a potential marker for the early detection of cancer. These observations lead to the possibility of developing NMT specific inhibitors, which may be therapeutically useful. We proposed that HSC70 and/or enolase could be used as an anticancer therapeutic target. This review summarized the status of NMT in cancer which has been carried in our laboratory.
Insights
N-myristoyltransferase (NMT) activity and expression are elevated in colorectal cancer, suggesting its potential as an early detection marker. NMT inhibitors may offer new therapeutic strategies for cancer treatment.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Colorectal cancer is a leading cause of cancer death, necessitating improved preventive and therapeutic strategies.
- Effective chemotherapeutic agents for colon cancer are limited, driving the search for novel cellular targets.
- The role of protein myristoylation, mediated by N-myristoyltransferase (NMT), in cancer pathogenesis is not well understood.
Purpose of the Study:
- To investigate the role and potential of N-myristoyltransferase (NMT) in colorectal cancer and other malignancies.
- To explore NMT as a potential biomarker for early cancer detection.
- To evaluate NMT as a therapeutic target for anticancer drug development.
Main Methods:
- Analysis of NMT activity and protein expression in human colorectal cancer, gallbladder carcinoma, and brain tumors.
- Assessment of NMT activity during early stages of colonic carcinogenesis.
- Review of laboratory findings on NMT in cancer.
Main Results:
- NMT activity and protein expression were found to be significantly higher in human colorectal cancer, gallbladder carcinoma, and brain tumors.
- Increased NMT activity was observed at an early stage of colonic carcinogenesis.
- HSC70 and enolase are proposed as potential anticancer therapeutic targets.
Conclusions:
- NMT is upregulated in various human cancers, indicating its involvement in cancer pathogenesis.
- NMT may serve as a valuable biomarker for the early detection of cancer.
- Targeting NMT with specific inhibitors presents a promising avenue for developing novel anticancer therapies.
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