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Updated: Jul 5, 2025

Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease
Published on: April 4, 2018
Genetic variants in the mTOR pathway with renal cancer risk and subtypes in East Indian population
Subhajit Malakar1, Srilagna Chatterjee2, Madhusudhan Das2
1Department of Urology, IPGME&R and SSKM Hospital, Kolkata, West Bengal, India.
Introduction:
Renal Cell Carcinoma (RCC), which accounts for 2%-3% of all adult malignant neoplasms with a male-to-female predominance of 1.9 to 1 with typical presentation between 55 and 75 years. The phosphoinositide-3-kinase-protein kinase B/Akt (PI3KPKB/Akt) pathway is a main pathway in control of cell growth. mTOR pathway plays a key role in the pathogenesis of RCC.
Material And Methods:
Its a prospective observational study. Tissue samples were collected and processed and DNA isolation and sequencing was done to see for any association and expression.
Results And Analysis:
Polymorphism analysis of the sequence of three genes MTOR, AKT1, and PIK3CA done and found an intronic variant of the MTOR gene (rs3737611) and AKT1 gene (rs2498797) to be significantly associated with clear cell Renal Cell Carcinoma tumor samples.
Discussion:
This study will help to understand the pathogenesis better and the information can be used to develop new drugs and personalized treatment strategies that are tailored to an individual's genetic makeup. The study identify individuals who are at heightened risk for developing renal cancer and could benefit from targeted screening or preventative measures. Some sample size and definite geographical sample pool remains the main limitation of the study which may not be externally validate the study results.
Insights
Genetic variants in the MTOR and AKT1 genes are linked to clear cell Renal Cell Carcinoma (RCC). This finding may lead to personalized treatments and targeted screening for kidney cancer.
Area of Science:
- Oncology
- Genetics
- Molecular Biology
Background:
- Renal Cell Carcinoma (RCC) is a significant malignancy with a male predominance.
- The phosphoinositide-3-kinase-protein kinase B/Akt (PI3K/Akt) and mTOR pathways are crucial in cell growth and RCC pathogenesis.
Purpose of the Study:
- To investigate the association between genetic polymorphisms in key pathway genes and clear cell RCC.
- To identify potential genetic markers for RCC risk and therapeutic targeting.
Main Methods:
- A prospective observational study design was employed.
- DNA isolation and sequencing were performed on tissue samples.
- Polymorphism analysis was conducted on the MTOR, AKT1, and PIK3CA genes.
Main Results:
- An intronic variant in the MTOR gene (rs3737611) was significantly associated with clear cell RCC.
- A specific variant in the AKT1 gene (rs2498797) also showed a significant association with clear cell RCC.
- No significant association was found for PIK3CA gene variants.
Conclusions:
- Genetic variations in MTOR and AKT1 are implicated in the pathogenesis of clear cell RCC.
- These findings could inform the development of personalized treatment strategies and targeted therapies.
- Identifying at-risk individuals for enhanced screening or preventative measures is a potential application.
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