cAMP-mediated regulation of melanocyte genomic instability: A melanoma-preventive strategy

Nathaniel C. Holcomb, Robert Marlo Bautista, Stuart G. Jarrett, Katharine M. Carter, Madeline Krentz Gober, John A. D'Orazio

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

14 Scopus citations


Malignant melanoma of the skin is the leading cause of death from skin cancer and ranks fifth in cancer incidence among all cancers in the United States. While melanoma mortality has remained steady for the past several decades, melanoma incidence has been increasing, particularly among fair-skinned individuals. According to the American Cancer Society, nearly 10,000 people in the United States will die from melanoma this year. Individuals with dark skin complexion are protected damage generated by UV-light due to the high content of UV-blocking melanin pigment in their epidermis as well as better capacity for melanocytes to cope with UV damage. There is now ample evidence that suggests that the melanocortin 1 receptor (MC1R) is a major melanoma risk factor. Inherited loss-of-function mutations in MC1R are common in melanoma-prone persons, correlating with a less melanized skin complexion and poorer recovery from mutagenic photodamage. We and others are interested in the MC1R signaling pathway in melanocytes, its mechanisms of enhancing genomic stability and pharmacologic opportunities to reduce melanoma risk based on those insights. In this chapter, we review melanoma risk factors, the MC1R signaling pathway, and the relationship between MC1R signaling and DNA repair.

Original languageEnglish
Title of host publicationAdvances in Protein Chemistry and Structural Biology
Number of pages49
StatePublished - Jan 1 2019

Publication series

NameAdvances in Protein Chemistry and Structural Biology
ISSN (Print)1876-1623

Bibliographical note

Publisher Copyright:
© 2019 Elsevier Inc.


  • ATR
  • MC1R
  • Melanin
  • Melanoma
  • Mutation
  • Nucleotide excision repair
  • Risk
  • UV
  • cAMP

ASJC Scopus subject areas

  • Structural Biology
  • Biochemistry


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