Targeted cancer therapy; nanotechnology approaches for overcoming drug resistance

Yan Gao, Jacson K Shen, Lara Milane

  • 1Massachusetts General Hospital and Harvard Medical School, 55 Fruit St, Jackson Building Room 1115, Boston, MA 02114, USA. zduan@mgh.harvard.edu.

Current Medicinal Chemistry
|February 11, 2015
PubMed

Insights

Targeted cancer therapy shows promise but faces drug resistance. Nanotechnology offers a strategy to overcome this resistance, enhancing treatment efficacy and reducing toxicity for improved cancer care.

Area of Science:

  • Oncology
  • Nanomedicine
  • Molecular Biology

Background:

  • Targeted cancer therapy offers improved efficacy and reduced toxicity compared to conventional chemotherapy.
  • Drug resistance remains a significant challenge for both conventional and targeted cancer therapies.
  • Mechanisms of resistance include efflux transporters, target alterations, apoptosis deregulation, and pharmacokinetic issues.

Purpose of the Study:

  • To review the mechanisms of targeted drug resistance in cancer.
  • To discuss nanotechnology-based approaches for overcoming targeted therapy resistance.

Main Methods:

  • Literature review of recent advances in cancer molecular biology and targeted therapy.
  • Analysis of mechanisms contributing to drug resistance in cancer.
  • Exploration of nanotechnology applications in overcoming cancer drug resistance.

Main Results:

  • Targeted therapy, while effective, is susceptible to various drug resistance mechanisms.
  • Nanotechnology-based strategies demonstrate efficacy in circumventing cancer drug resistance.
  • Combining targeted therapies with nanotechnology is a promising approach to enhance treatment outcomes.

Conclusions:

  • Understanding resistance mechanisms is crucial for developing effective cancer treatments.
  • Nanotechnology presents a viable strategy to overcome targeted therapy resistance.
  • Combination approaches integrating targeted therapy and nanotechnology hold significant potential for future cancer treatment.

Related Concept Videos

Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
9.2K
Targeted Cancer Therapies02:57

Targeted Cancer Therapies

1.8K
Combination Therapies and Personalized Medicine02:50

Combination Therapies and Personalized Medicine

Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
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...
6.4K
Treatment Resistant Cancers02:56

Treatment Resistant Cancers

Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
3.9K
Treatment Resistent Cancers02:56

Treatment Resistent Cancers

1.5K
Modified-Release Drug Delivery Systems: Site-Targeted01:24

Modified-Release Drug Delivery Systems: Site-Targeted

Site-targeted drug delivery systems enhance therapeutic efficacy while minimizing systemic toxicity and treatment costs. Unlike conventional methods, these systems ensure precise drug delivery, improving bioavailability and reducing side effects. Targeted drug delivery is classified into three levels. First-order targeting directs drugs to the capillary beds of specific organs or tissues. Second-order targets specific cell types, such as tumor cells, using receptor-mediated interactions.
144