Targeting the molecular defect in BRCA-deficient tumors for cancer therapy

Ashok R Venkitaraman1

  • 1The Medical Research Council Cancer Cell Unit, Hutchison/MRC Research Centre, Cambridge, UK. arv22@cam.ac.uk

Cancer Cell
|August 4, 2009
PubMed

Insights

Targeted cancer therapies, like Olaparib, show promise for treating BRCA1/BRCA2-deficient cancers. This approach targets specific molecular defects, advancing anticancer drug development.

Area of Science:

  • Oncology
  • Molecular Biology
  • Pharmacology

Background:

  • Targeted therapies offer a promising strategy to overcome limitations in conventional anticancer drug development.
  • Exploiting specific molecular defects in cancer cells is a key focus in precision medicine.

Purpose of the Study:

  • To evaluate the early clinical efficacy of Olaparib.
  • To assess the potential of Olaparib in treating cancers with BRCA1 or BRCA2 gene deficiencies.

Main Methods:

  • Early-phase clinical trial.
  • Evaluation of Olaparib's safety and preliminary efficacy.
  • Patient selection based on BRCA1/BRCA2 mutation status.

Main Results:

  • Olaparib demonstrated early clinical activity in patients with BRCA1/BRCA2-deficient cancers.
  • The study exemplifies the potential of targeted therapies in specific cancer types.

Conclusions:

  • Targeted therapies like Olaparib represent a significant advancement in cancer treatment.
  • Exploiting genetic vulnerabilities, such as BRCA1/BRCA2 mutations, is a viable strategy for developing novel anticancer drugs.

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 specific...
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 specific...
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...
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...
Mitogens and the Cell Cycle02:38

Mitogens and the Cell Cycle

Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase01:11

Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase

Genetic polymorphisms in drug targets have emerged as critical determinants of interindividual variability in drug response and toxicity. Pharmacogenomic investigations increasingly focus on identifying these variations to personalize and optimize therapeutic interventions. A drug target may be a receptor, enzyme, or signaling protein involved in pharmacologic responses or disease-related pathways. While early pharmacogenetic studies focused primarily on drug metabolism, current research...