Preparation of Mitochondria from Ovarian Cancer Tissues and Control Ovarian Tissues for Quantitative Proteomics Analysis

作者： Xianquan Zhan1,2,3,4, Huanni Li5, Shehua Qian1,2,3, Xiaohan Zhan1,2,3, Na Li1,2,3 1Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital,Central South University, 2Hunan Engineering Laboratory for Structural Biology and Drug Design, Xiangya Hospital,Central South University, 3State Local Joint Engineering Laboratory for Anticancer Drugs, Xiangya Hospital,Central South University, 4National Clinical Research Center for Geriatric Disorders, Xiangya Hospital,Central South University, 5Department of Obstetrics and Gynecology, Xiangya Hospital,Central South University

简介：

Overview

This article presents a protocol for isolating and purifying mitochondria from human ovarian cancer and control tissues using differential-speed centrifugation combined with density gradient centrifugation. This method facilitates high-quality mitochondrial samples for quantitative proteomics analysis, enhancing our understanding of mitochondrial changes in ovarian cancers.

Key Study Components

Area of Science

• Neuroscience
• Proteomics
• Cancer Research

Background

• Mitochondria play crucial roles in energy metabolism and cell signaling.
• Understanding mitochondrial proteome changes can reveal molecular mechanisms in ovarian cancers.
• This study aims to discover effective biomarkers and therapeutic targets.
• Isolating mitochondria from cancer tissues can be more challenging than from control tissues.

Purpose of Study

• To establish a reliable protocol for mitochondrial isolation from ovarian tissues.
• To enable large-scale proteomics analysis of mitochondrial samples.
• To enhance insights into the role of mitochondria in ovarian cancer.

Methods Used

• Differential-speed centrifugation
• Density gradient centrifugation
• iTRAQ quantitative proteomics
• Analysis of human ovarian cancer tissue

Main Results

• High-quality mitochondrial samples were obtained for analysis.
• The protocol demonstrated high throughput and reproducibility.
• Insights gained can be translated to other tissues for mitochondrial proteomics.
• Challenges in isolating mitochondria from control tissues were noted.

Conclusions

• The established protocol is effective for mitochondrial isolation.
• It provides a platform for understanding mitochondrial roles in ovarian cancer.
• The findings may lead to the identification of biomarkers and therapeutic targets.

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