Novel Therapeutic Approaches with DNA Damage Response Inhibitors for Melanoma Treatment

Luisa Maresca1, Barbara Stecca1, Laura Carrassa2

  • 1Tumor Cell Biology Unit, Core Research Laboratory, Institute for Cancer Research and Prevention (ISPRO), Viale Gaetano Pieraccini 6, 50139 Florence, Italy.

Cells
|May 14, 2022
PubMed

Insights

New melanoma treatments targeting DNA damage response (DDR) show promise for patients resistant to current therapies. Inhibitors of DDR pathways offer a potential new strategy to overcome treatment resistance and improve outcomes in melanoma.

Area of Science:

  • Oncology
  • Cancer Biology
  • Genetics

Background:

  • Melanoma treatments like targeted therapies (MAPK pathway) and immunotherapies offer clinical benefits but often face patient resistance and disease relapse.
  • Melanoma exhibits mutations in homologous recombination (HR) and DNA damage response (DDR) genes, alongside high replicative stress, leading to increased endogenous DNA damage and DDR activation.

Purpose of the Study:

  • To review the therapeutic potential of exploiting DNA damage response (DDR) pathways in melanoma.
  • To focus on specific DDR inhibitors (PARP, ATM, CHK1, WEE1, ATR) and their application in melanoma treatment.

Main Methods:

  • Review of current experimental evidence on DDR in melanoma.
  • Analysis of preclinical data for DDR inhibitors as single agents and in combination therapies.
  • Examination of synthetic lethal interactions involving DDR pathways.

Main Results:

  • Preclinical data demonstrate the growing efficacy of DDR inhibitors in melanoma, both as monotherapies and in combination with chemo-targeted-immunotherapy.
  • Synthetic lethal interactions are being explored to enhance the effectiveness of DDR inhibitors.

Conclusions:

  • Exploiting DDR pathways presents a promising therapeutic avenue for melanoma treatment.
  • DDR inhibitors, supported by preclinical and ongoing clinical data, may significantly impact the future of melanoma therapy, especially for resistant cases.

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...
7.9K
DNA Damage can Stall the Cell Cycle02:37

DNA Damage can Stall the Cell Cycle

In response to DNA damage, cells can pause the cell cycle to assess and repair the breaks. However, the cell must check the DNA at certain critical stages during the cell cycle. If the cell cycle pauses before DNA replication, the cells will contain twice the amount of DNA. On the other hand, if cells arrest after DNA replication but before mitosis, they will contain four times the normal amount of DNA. With a host of specialized proteins at their disposal,cells must use the right protein at...
9.4K
The Intrinsic Apoptotic Pathway01:31

The Intrinsic Apoptotic Pathway

Internal cellular stress, such as cellular injury or hypoxia, triggers intrinsic apoptosis. The B-cell lymphoma 2 (Bcl-2) family of proteins are the primary regulators of the intrinsic apoptotic pathway. For example, during DNA damage, checkpoint proteins, such as Ataxia Telangiectasia Mutated (ATM protein) and Checkpoints Factor-2 (Chk2) proteins, are activated. These proteins phosphorylate p53 which further activates pro-apoptotic proteins, such as Bax, Bak, PUMA, and Noxa, and inhibits...
6.9K
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...
5.1K