Molecular targeted therapy for patients with melanoma: the promise of MAPK pathway inhibition and beyond

Ryan J Sullivan1, Michael B Atkins

  • 1Division of Hematology/Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA. matkins@bidmc.harvard.edu

Abstract

Insights

Targeted therapies offer revolutionary melanoma treatment by targeting molecular signaling pathways. However, overcoming resistance remains crucial for sustained tumor regression and improved patient outcomes.

Area of Science:

  • Oncology
  • Dermatology
  • Molecular Biology

Background:

  • Recent advances reveal key molecular signaling in melanoma development.
  • Targeted therapeutic agents are transforming advanced melanoma treatment.

Purpose of the Study:

  • Review current melanoma therapies and their limitations.
  • Describe pathogenic mechanisms targeted by novel inhibitors.
  • Summarize clinical trial outcomes of molecularly targeted agents.

Main Methods:

  • Literature review of preclinical and clinical research.
  • Analysis of molecular targets in melanoma.
  • Evaluation of therapeutic agent activity and limitations.

Main Results:

  • Significant preclinical and clinical research exists for targeted melanoma therapies.
  • Current molecular targets and agent efficacy are identified.
  • Limitations of existing targeted treatments are discussed.

Conclusions:

  • Understanding melanoma pathogenesis drives new therapeutic strategies.
  • Despite progress, incomplete and transient tumor regressions persist.
  • Further research into treatment resistance is essential to overcome limitations.

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...
MAPK Signaling Cascades01:07

MAPK Signaling Cascades

Mitogen-activated protein kinase, or MAPK pathway, activates three sequential kinases to regulate cellular responses such as proliferation, differentiation, survival, and apoptosis. The canonical MAPK pathway starts with a mitogen or growth factor binding to an RTK. The activated RTKs stimulate Ras, which recruits Raf or MAP3 Kinase (MAPKKK), the first kinase of the MAPK signaling cascade. Raf further phosphorylates and activates MEK or MAP2 Kinases (MAPKK), which in turn phosphorylates MAP...
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...
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...