Targeting oncogene and non-oncogene addiction to inflame the tumour microenvironment

Giulia Petroni1, Aitziber Buqué1, Lisa M Coussens2

  • 1Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA.

Insights

Immune checkpoint inhibitors (ICIs) show limited patient response due to resistance mechanisms. Targeting oncogene and non-oncogene addiction may enhance ICI efficacy by making tumors more responsive to immunotherapy.

Area of Science:

  • Oncology
  • Immunology
  • Cancer Biology

Background:

  • Immune checkpoint inhibitors (ICIs) have transformed cancer treatment but benefit only a subset of patients.
  • Tumor resistance to ICIs is a significant clinical challenge, necessitating research into underlying mechanisms.
  • Oncogenic and non-oncogene addiction pathways contribute to tumor progression and immune evasion.

Purpose of the Study:

  • To investigate how oncogene and non-oncogene addiction pathways influence tumor microenvironments (TMEs) and ICI response.
  • To identify novel therapeutic strategies for overcoming ICI resistance.

Main Methods:

  • Analysis of oncogenic and stress response pathways in tumor cells.
  • Assessment of their impact on the immune cell composition within the TME.
  • Correlation of pathway activity with clinical response to ICIs.

Main Results:

  • Both oncogene and non-oncogene addiction pathways promote tumor survival and proliferation.
  • These pathways create immunologically 'cold' TMEs, characterized by limited immune cell infiltration.
  • Blocking these addiction pathways may reverse immune suppression within the TME.

Conclusions:

  • Oncogene and non-oncogene addiction are key mechanisms of ICI resistance.
  • Targeting these pathways offers a promising strategy to sensitize tumors to ICIs.
  • Modulating the TME by targeting addiction pathways could improve patient outcomes in cancer immunotherapy.

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
Cancer-Critical Genes I: Proto-oncogenes01:33

Cancer-Critical Genes I: Proto-oncogenes

Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
9.2K
mTOR Signaling and Cancer Progression03:03

mTOR Signaling and Cancer Progression

The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
3.9K
The Tumor Microenvironment02:17

The Tumor Microenvironment

Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
6.8K
Adaptive Mechanisms in Cancer Cells02:53

Adaptive Mechanisms in Cancer Cells

Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
6.0K