Mechanisms of autophagy and relevant small-molecule compounds for targeted cancer therapy

Jin Zhang1, Guan Wang1, Yuxin Zhou1,2

  • 1State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China.

Insights

Autophagy, a cellular degradation process, plays a dual role in cancer, acting as both tumor-suppressive and tumor-promoting. This review explores its complex mechanisms and potential as a therapeutic target for cancer treatment.

Area of Science:

  • Cellular Biology
  • Oncology
  • Molecular Medicine

Background:

  • Autophagy is a fundamental cellular process involving lysosomal degradation of damaged components.
  • Emerging research highlights autophagy's complex and often contradictory involvement in various cancer types.
  • Understanding autophagy's dual role is crucial for developing effective cancer therapies.

Purpose of the Study:

  • To review the context-dependent functions of autophagy in different cancers.
  • To elucidate the intricate molecular mechanisms underlying autophagy's role in tumorigenesis.
  • To discuss small-molecule compounds targeting autophagy for potential cancer therapy.

Main Methods:

  • Literature review and synthesis of current research on autophagy and cancer.
  • Analysis of molecular pathways linking autophagy to tumor suppression and promotion.
  • Compilation of data on small-molecule modulators of autophagy for therapeutic applications.

Main Results:

  • Autophagy exhibits context-specific roles, acting as either a tumor suppressor or promoter depending on the cancer type and stage.
  • Key molecular players and signaling pathways governing autophagy's function in cancer have been identified.
  • Several small-molecule compounds targeting autophagy show promise for preclinical and clinical cancer therapy.

Conclusions:

  • Autophagy's intricate role in cancer necessitates a nuanced therapeutic approach.
  • Targeting autophagy pathways with small-molecule compounds offers a promising strategy for novel cancer treatments.
  • Further research into autophagy mechanisms can lead to improved targeted cancer therapies.

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...
9.0K
Molecules and Compounds02:38

Molecules and Compounds

Atoms and Molecules
69.7K
Ions, Molecules, and Compounds01:23

Ions, Molecules, and Compounds

Ions - When an atom participates in a chemical reaction that results in the donation or acceptance of one or more electrons, the atom becomes positively or negatively charged. This frequently happens for most atoms to have a full valence shell. This can happen either by gaining electrons to fill a shell that is more than half-full or by giving away electrons to empty a shell that is less than half-full, thereby leaving the next smaller electron shell as the new, full valence shell. An atom with...
15.1K
Cancer Therapies02:49

Cancer Therapies

Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
10.2K
Autophagy01:27

Autophagy

Autophagy is a self-digesting process by which a cell protects itself from threats both within and outside the cell, ranging from abnormal proteins to invading bacteria. In this process, obsolete components of the cell and invading microbes are degraded by hydrolytic enzymes active in an acidic environment of the lysosomal lumen.
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
5.9K
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,...
7.2K