Overcoming the challenges of cancer drug resistance through bacterial-mediated therapy

Amin Zargar1,2, Samantha Chang1, Ankita Kothari3

  • 1Joint BioEnergy Institute, Lawrence Berkeley National Laboratory, Emeryville, CA 94608, USA.

Insights

Cancer drug resistance hinders treatment success. This review explores resistance mechanisms and how engineered bacteria offer a novel therapeutic approach to overcome these challenges.

Area of Science:

  • Oncology
  • Biotechnology
  • Microbiology

Background:

  • Cancer remains a leading cause of death globally, despite advances in precision therapeutics.
  • Cancer drug resistance is a significant barrier to successful treatment outcomes.
  • Traditional therapies often fail due to complex resistance mechanisms.

Purpose of the Study:

  • To review the primary mechanisms of cancer drug resistance.
  • To explore the potential of bacterial-mediated cancer therapy as a novel treatment strategy.
  • To highlight how synthetic biology can engineer bacteria to overcome drug resistance.

Main Methods:

  • Literature review of cancer drug resistance mechanisms (pharmacokinetics, tumor microenvironment, intrinsic/acquired resistance).
  • Analysis of synthetic biology advancements in engineering bacteria for therapeutic applications.
  • Evaluation of bacterial properties relevant to cancer treatment (targeting, anti-tumor activity, safety).

Main Results:

  • Cancer resistance involves pharmacokinetic, tumor microenvironment, and intrinsic drug resistance mechanisms.
  • Bacterial-mediated cancer therapy, revitalized by synthetic biology, shows promise in overcoming these resistance mechanisms.
  • Genetically engineered bacteria possess tumor-targeting capabilities, anti-tumor activity, safety, and drug delivery potential.

Conclusions:

  • Bacterial-mediated cancer therapy presents a promising strategy to combat drug resistance in cancer treatment.
  • Synthetic biology enables the engineering of bacteria as potent and targeted anticancer agents.
  • Further research into engineered bacteria could lead to improved cancer therapeutic outcomes.

Related Concept Videos

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...
3.6K
Defense Against Bacterial Pathogens01:31

Defense Against Bacterial Pathogens

The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
2.5K
Development of Antibiotic Resistance01:30

Development of Antibiotic Resistance

Antibiotic resistance is a major public health concern that arises when bacteria evolve mechanisms to withstand the effects of antibiotic treatments. This resistance can be intrinsic, acquired through genetic mutations, or transferred between bacteria via horizontal gene transfer. The development of antibiotic resistance poses significant challenges in treating bacterial infections and necessitates ongoing research to develop new therapeutic strategies.Intrinsic resistance occurs when bacterial...
1.0K
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...
5.8K
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...
8.6K
Antibiotic Selection00:57

Antibiotic Selection

Overview
59.2K