Heat stress: a risk factor for skin carcinogenesis

Area of Science:

• Oncology
• Dermatology
• Molecular Biology

Background:

• Emerging evidence indicates heat stress as a potential risk factor for skin carcinogenesis.
• Heat shock proteins (HSPs) are activated by heat stress, aiding cellular function and preventing apoptosis.
• However, HSPs may promote cancer if cells with oncogenic mutations are rescued from cell death.

Purpose of the Study:

• To review studies investigating the hypothesis that combined heat and UV exposure induces skin cancer.
• To explore the role of heat shock proteins (HSPs) in heat-induced skin carcinogenesis.

Main Methods:

• Literature review of studies on heat stress, UV radiation, and skin cancer.
• Analysis of the molecular mechanisms involving heat shock proteins (HSPs) and associated signaling pathways.

Main Results:

• Heat stress activates HSPs like HSP72 and HSP90.
• Activated HSPs can modulate critical signaling pathways including MAPK, JNK, and p53.
• These pathways regulate cell proliferation, survival, and apoptosis, processes implicated in cancer development.

Conclusions:

• Concomitant expression of HSPs and oncogenic mutations, potentially driven by heat and UV exposure, may contribute to skin cancer development.
• HSPs play a significant role in cellular responses to stress and may influence skin carcinogenesis.