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Updated: Aug 29, 2025

Utilizing Functional Genomics Screening to Identify Potentially Novel Drug Targets in Cancer Cell Spheroid Cultures
Published on: December 26, 2016
Targeting the key cholesterol biosynthesis enzyme squalene monooxygenasefor cancer therapy
Yuheng Zou1, Hongying Zhang2, Feng Bi1
1Department of Medical Oncology, Cancer Center and Laboratory of Molecular Targeted Therapy in Oncology, West China Hospital, Sichuan University, Chengdu, China.
Abstract:
Cholesterol metabolism is often dysregulated in cancer. Squalene monooxygenase (SQLE) is the second rate-limiting enzyme involved in cholesterol synthesis. Since the discovery of SQLE dysregulation in cancer, compelling evidence has indicated that SQLE plays a vital role in cancer initiation and progression and is a promising therapeutic target for cancer treatment. In this review, we provide an overview of the role and regulation of SQLE in cancer and summarize the updates of antitumor therapy targeting SQLE.
Insights
Cholesterol metabolism is frequently altered in cancer. Squalene monooxygenase (SQLE), a key enzyme in cholesterol synthesis, is a promising therapeutic target for novel antitumor strategies.
Area of Science:
- Biochemistry
- Oncology
- Molecular Biology
Background:
- Cholesterol metabolism plays a critical role in cellular processes, and its dysregulation is a hallmark of cancer.
- Squalene monooxygenase (SQLE) is identified as the second rate-limiting enzyme in the cholesterol biosynthesis pathway.
- Aberrant SQLE expression and activity are increasingly recognized in various cancer types, influencing tumor development.
Purpose of the Study:
- To provide a comprehensive overview of the multifaceted role of SQLE in cancer initiation and progression.
- To elucidate the regulatory mechanisms governing SQLE expression and function within the context of oncogenesis.
- To summarize recent advancements in the development of SQLE-targeting antitumor therapies.
Main Methods:
- Literature review of preclinical and clinical studies on SQLE in cancer.
- Analysis of genetic and molecular data linking SQLE to cancer phenotypes.
- Synthesis of information on emerging therapeutic strategies targeting SQLE.
Main Results:
- SQLE dysregulation is a significant driver of cancer initiation and progression across multiple tumor types.
- Evidence supports SQLE's involvement in key oncogenic pathways, including proliferation and survival.
- Several therapeutic approaches targeting SQLE are under investigation, showing promising preclinical antitumor activity.
Conclusions:
- SQLE is a critical regulator of cholesterol metabolism in cancer and represents a viable therapeutic target.
- Targeting SQLE offers a promising strategy for the development of novel anticancer treatments.
- Further research into SQLE regulation and targeted therapies is warranted to combat cancer effectively.
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