Selective autophagy in cancer development and therapy

Ivan Dikic1, Terje Johansen, Vladimir Kirkin

  • 1Frankfurt Institute for Molecular Life Sciences and Institute of Biochemistry II, Goethe University, Frankfurt, Main, Germany. ivan.dikic@biochem2.de

Cancer Research
|April 29, 2010
PubMed

Insights

Autophagy, a cell survival process, paradoxically aids and suppresses tumor growth. Selective autophagy, mediated by receptors like p62/SQSTM1, plays a key role in cancer development and therapy.

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Oncology

Background:

  • Autophagy is a conserved cellular process crucial for survival during stress.
  • Tumor cells utilize autophagy for survival, yet autophagy also acts as a tumor suppressor.
  • This presents a complex role for autophagy in cancer.

Purpose of the Study:

  • To explore the dual role of autophagy in cancer.
  • To elucidate the mechanisms of selective autophagy in cancer pathogenesis.
  • To discuss the implications of selective autophagy for cancer treatment.

Main Methods:

  • Review of recent studies on autophagy and cancer.
  • Analysis of the role of receptor molecules like p62/SQSTM1.
  • Discussion of selective autophagy principles.

Main Results:

  • Autophagy's role in cancer is context-dependent, acting as both a promoter and suppressor.
  • Selective autophagy, utilizing specific receptors, is critical for cancer development.
  • p62/SQSTM1 is a key receptor linking targets to autophagosomes.

Conclusions:

  • Selective autophagy is a significant factor in cancer pathogenesis.
  • Understanding selective autophagy offers potential new therapeutic strategies for cancer treatment.

Related Concept Videos

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,...
Delivery Pathways to the Lysosome01:36

Delivery Pathways to the Lysosome

Eukaryotic cells use different mechanisms to eliminate toxic waste obsolete and worn-out substances. Lysosomes play a pivotal role in this, and hence, these substances are carried to the lysosome from other parts of the cell and extracellular space through different pathways. The most elaborately studied pathways to the lysosome are the endocytic pathways.
Endocytosis
In endocytosis, the cell membrane takes up macromolecules and particles from the surrounding medium. Clathrin-mediated...
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...
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...
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...