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Molecular basis of cisplatin resistance in human carcinomas: model systems and patients
K J Scanlon1, M Kashani-Sabet, H Miyachi
1Department of Medical Oncology, City of Hope National Medical Center, Duarte, CA 91010.
Abstract:
In this review, cisplatin resistance will be summarized. We will discuss characteristics of potential mechanisms of resistance in tissues from patients with ovarian, colon and breast carcinoma. Secondly, a new molecular biology assay will be discussed which detects changes in gene expression in cisplatin-resistant cells. Finally, based on the biochemical and molecular properties of cisplatin-resistant tumors, new strategies to exploit or circumvent cisplatin resistance in human tumors will be entertained.
Insights
This review summarizes cisplatin resistance mechanisms in ovarian, colon, and breast cancers. It also explores a new assay for gene expression changes and novel strategies to overcome drug resistance in tumors.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- Cisplatin is a cornerstone chemotherapy agent.
- Drug resistance remains a significant challenge in treating ovarian, colon, and breast carcinomas.
- Understanding resistance mechanisms is crucial for improving patient outcomes.
Purpose of the Study:
- To review the mechanisms of cisplatin resistance in specific cancer types.
- To introduce a novel molecular biology assay for detecting gene expression alterations in resistant cells.
- To propose new therapeutic strategies targeting cisplatin-resistant human tumors.
Main Methods:
- Literature review of cisplatin resistance mechanisms.
- Discussion of a new gene expression profiling assay.
- Analysis of biochemical and molecular properties of resistant tumors.
Main Results:
- Characterization of potential resistance mechanisms in ovarian, colon, and breast cancer tissues.
- Description of a molecular assay detecting changes in gene expression in cisplatin-resistant cells.
- Identification of potential strategies to overcome cisplatin resistance.
Conclusions:
- Cisplatin resistance is complex and multifactorial.
- A novel assay aids in understanding gene expression changes related to resistance.
- New therapeutic strategies are needed to effectively treat cisplatin-resistant cancers.