ABSTRACT
Staphylococcus epidermidis can exhibit both protective and opportunistic pathogenic effects on the skin: on the one hand, it suppresses pathogenic bacteria and inflammation, assists the innate immune system of the skin, and maintains homeostasis of skin microenvironment; on the other hand, it exhibits pathogenic potential. How Staphylococcus epidermidis affects human skin conditions depends not only on itself, but also on the communication among it, the host immune system, other microorganisms and environment factors. The balance of this interaction is the symbiotic homeostasis of Staphylococcus epidermidis, and when the homeostasis is disrupted, a variety of skin diseases such as acne vulgaris, atopic dermatitis, rosacea and melanoma can occur. Factors affecting the symbiotic homeostasis of Staphylococcus epidermidis include environmental conditions such as temperature, oxygen content and nutrition, antibiotics, the number of other microorganisms, microecological diversity, etc. This review summarizes recent research progress in symbiotic homeostasis of Staphylococcus epidermidis.
ABSTRACT
Recently, great breakthroughs have been made in the treatment of melanoma with immune checkpoint inhibitors. However, only a small proportion of patients show a long-lasting response to immunotherapy, and risks of immune-related adverse events and drug resistance have been also increasing along with the emergence of combination treatment. This review summarizes biomarkers related to the efficacy of immune checkpoint inhibitors in the treatment of melanoma, aiming to predict and screen out patients who may benefit from immunotherapy, guide individualized clinical treatment, and reduce the occurrence of drug resistance and adverse reactions.