Related Experiment Video
Updated: Jun 4, 2026
A Robust Discovery Platform for the Identification of Novel Mediators of Melanoma Metastasis
Published on: March 8, 2022
Pathways to melanoma
Justin M Ko1, Nicole F Velez, Hensin Tsao
1Department of Dermatology, Harvard Medical School, Boston, MA, USA.
Abstract:
Melanoma is one of the most aggressive and yet poorly understood of human malignancies. Advances in genomics has allowed a more nuanced understanding of the disease, moving beyond the traditional dysplastic nevus-to-melanoma model and identifying multiple divergent oncogenic pathways leading to melanoma. An understanding of the molecular mechanisms driving melanoma has opened the doors for the development of targeted therapeutic approaches. As we enter the era of personalized medicine, it will be critical for clinicians to both appreciate and be able to determine the molecular profile of their patients' melanoma because this profile will guide risk stratification, genetic counseling, and treatment customization. A review of the divergent pathways of melanoma development is presented here, with a particular emphasis on recently identified mutations, and their implications for patient care.
Insights
Genomic advances reveal multiple pathways driving melanoma, moving beyond the old model. Understanding these molecular profiles is key for personalized medicine, guiding patient risk, counseling, and tailored treatments.
Area of Science:
- Oncology
- Genetics
- Dermatology
Background:
- Melanoma is an aggressive and complex human cancer.
- Traditional models of melanoma development are insufficient.
- Genomic research has uncovered diverse oncogenic pathways.
Purpose of the Study:
- To review divergent pathways in melanoma development.
- To highlight recently identified mutations.
- To discuss implications for patient care and personalized medicine.
Main Methods:
- Review of recent genomic and molecular studies on melanoma.
- Analysis of divergent oncogenic pathways.
- Emphasis on novel mutations and their clinical relevance.
Main Results:
- Melanoma arises through multiple distinct molecular pathways, not a single linear progression.
- Specific genetic mutations are identified as key drivers in these divergent pathways.
- Molecular profiling offers insights into melanoma heterogeneity.
Conclusions:
- Understanding melanoma's molecular complexity is crucial for advancing treatment.
- Personalized medicine approaches require detailed knowledge of individual melanoma profiles.
- Genomic insights guide risk stratification, genetic counseling, and customized therapy for melanoma patients.
Related Concept Videos
01:30Skin Cancer
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
01:31The Intrinsic Apoptotic Pathway
01:19Pigmentation
Melanin occurs in two primary forms: eumelanin that provides black and brown pigment and pheomelanin that provides red color. Dark-skinned individuals produce more melanin than those with pale...
02:21Cancers Originate from Somatic Mutations in a Single Cell
01:19Interactions Between Signaling Pathways
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
02:30Metastasis
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...