Related Experiment Video
Updated: Nov 1, 2025

Facile Preparation and Photoactivation of Prodrug-Dye Nanoassemblies
Published on: February 17, 2023
Key genes and drug delivery systems to improve the efficiency of chemotherapy
Zally Torres-Martinez1, Yamixa Delgado2, Yancy Ferrer-Acosta3
1Chemistry Department, University of Puerto Rico- Rio Piedras campus, San Juan, PR 00936, USA.
Abstract:
Cancer cells can develop resistance to anticancer drugs, thereby becoming tolerant to treatment through different mechanisms. The biological mechanisms leading to the generation of anticancer treatment resistance include alterations in transmembrane proteins, DNA damage and repair mechanisms, alterations in target molecules, and genetic responses, among others. The most common anti-cancer drugs reported to develop resistance to cancer cells include cisplatin, doxorubicin, paclitaxel, and fluorouracil. These anticancer drugs have different mechanisms of action, and specific cancer types can be affected by different genes. The development of drug resistance is a cellular response which uses differential gene expression, to enable adaptation and survival of the cell to diverse threatening environmental agents. In this review, we briefly look at the key regulatory genes, their expression, as well as the responses and regulation of cancer cells when exposed to anticancer drugs, along with the incorporation of alternative nanocarriers as treatments to overcome anticancer drug resistance.
Insights
Cancer cells develop drug resistance through various mechanisms, impacting treatments like cisplatin and doxorubicin. Understanding gene expression and exploring nanocarriers can help overcome this resistance.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- Cancer cells can develop resistance to anticancer drugs through diverse biological mechanisms.
- Mechanisms include altered transmembrane proteins, DNA repair, target molecule changes, and genetic responses.
- Commonly resistant drugs include cisplatin, doxorubicin, paclitaxel, and fluorouracil.
Purpose of the Study:
- To review key regulatory genes and their expression in cancer drug resistance.
- To examine cancer cell responses and regulation when exposed to anticancer drugs.
- To discuss nanocarriers as a strategy to overcome anticancer drug resistance.
Main Methods:
- Review of literature on cancer drug resistance mechanisms.
- Analysis of gene expression patterns in resistant cancer cells.
- Exploration of nanocarrier applications in overcoming drug resistance.
Main Results:
- Drug resistance involves differential gene expression for cell adaptation and survival.
- Specific genes and cancer types exhibit distinct resistance profiles.
- Nanocarriers show potential for enhancing drug delivery and efficacy.
Conclusions:
- Understanding gene regulation is crucial for combating cancer drug resistance.
- Alternative therapeutic strategies, such as nanocarriers, are vital for treatment success.
- Further research into nanocarrier-based therapies is warranted.
More Related Videos
09:56Preparation and Characterization of Lipophilic Doxorubicin Pro-drug Micelles
Published on: August 2, 2016
08:57Sample Extraction and Simultaneous Chromatographic Quantitation of Doxorubicin and Mitomycin C Following Drug Combination Delivery in Nanoparticles to Tumor-bearing Mice
Published on: October 5, 2017
Related Concept Videos
Combination Therapies and Personalized Medicine
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
Targeted Cancer Therapies
There are several types of targeted therapies against...
Treatment Resistant Cancers
Drug Delivery: Overview
Enteral delivery involves administering drugs directly through swallowing, sublingual placement, or buccal application. Orally administered drugs predominantly navigate the...
Cancer Therapies
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
Cancer