Cited by 3,143Dermatology and Skin DiseasesContact Dermatitis and AllergiesGut microbiota and health

The skin microbiome

Open access
Grice, Elizabeth A., Segre, Julia A.·2011·Nature Reviews Microbiology

Abstract

The skin is the human body's largest organ, colonized by a diverse milieu of microorganisms, most of which are harmless or even beneficial to their host. Colonization is driven by the ecology of the skin surface, which is highly variable depending on topographical location, endogenous host factors and exogenous environmental factors. The cutaneous innate and adaptive immune responses can modulate the skin microbiota, but the microbiota also functions in educating the immune system. The development of molecular methods to identify microorganisms has led to an emerging view of the resident skin bacteria as highly diverse and variable. An enhanced understanding of the skin microbiome is necessary to gain insight into microbial involvement in human skin disorders and to enable novel promicrobial and antimicrobial therapeutic approaches for their treatment.

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Crossref · 10.1038/nrmicro2537

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  • AD is associated with increased abundance of S. aureus in lesions, which interferes with host immunity and damages the skin barrier; psoriasis is associated with abnormal colonization of S. aureus and decreased S. epidermidis abundance in psoriatic lesions; seborrheic dermatitis involves Malassezia in its pathogenesis.

    “Further examples of disease-microbiota association in human skin are AD (where the increased abundance of S. aureus in the lesions interferes with the host immunity, directly damaging the skin barrier), psoriasis (with abnormal colonization of S. aureus and decrease of S. epidermidis abundance in psoriatic lesions), and seborrheic dermatitis (where the most abundant fungal skin commensal, Malassez”

    From Recreating Human Skin In Vitro: Should the Microbiota Be Taken into Account? (2024) · cites this paper as [122]

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  • High humidity environments can lead to higher sweat and oil production, fostering microbial growth and elevating the risk of skin irritation, infection, and flare-ups of conditions such as eczema.

    “In high humidity environments, increased moisture can lead to higher sweat and oil production, fostering microbial growth and elevating the risk of skin irritation, infection, and flare-ups of conditions such as eczema [47].”

    From The Environmental Determinants of Skin Health: Linking Climate Change, Air Pollution, and the Dermatologic Disease Burden (2025) · cites this paper as [47]

    The Topography and Environmental factors sections report that humid conditions favor microbial growth and are associated with greater bacterial quantities on some skin sites. The paper also discusses infection and eczema in relation to skin microbiota, but it does not establish that high humidity increases sweat or oil production or raises the risk of irritation, infection, or eczema flare-ups. (LLM, conf=0.88)

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  • The human skin microbiota contains a variety of bacterial species and, unlike the gut microbiota, is mostly made of Gram-positive Actinobacteria (e.g., Cutibacterium spp. and Corynebacterium spp.), including Gram-positive Staphylococcus.

    “Genomics-based investigation showed that a variety of different bacterial species coexist in the human skin microbiota, which, in contrast to the gut microbiota, is mostly made of Gram-positive Actinobacteria (e.g., Cutibacterium spp. and Corynebacterium spp.), including the Gram-positive Staphylococcus [122].”

    From Recreating Human Skin In Vitro: Should the Microbiota Be Taken into Account? (2024) · cites this paper as [122]

    The Molecular analysis of skin microbiota section reports diverse skin bacteria and says Actinobacteria are more abundant on skin than in the gut. The Variation by skin site subsection identifies Corynebacterium and Staphylococcus on skin, but the paper places Actinobacteria and Firmicutes in separate phyla; it does not support describing Staphylococcus as included among Actinobacteria. Our copy uses Propionibacterium rather than Cutibacterium. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Healthy human skin is populated with a characteristic microbiome.

    “The healthy human skin is populated with a characteristic microbiome.54”

    From Sebaceous-immunobiology is orchestrated by sebum lipids (2017) · cites this paper as [54]

  • Molecular studies have been unable to identify a unique organism that colonizes wounds of the same general type, for example, in diabetic foot ulcers or venous leg ulcers.

    “However, molecular studies have been unable to identify a unique organism that colonizes wounds of the same general type, for example, in diabetic foot ulcers or venous leg ulcers.14”

    From The Innate Immune System in Acute and Chronic Wounds (2016) · cites this paper as [14]

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Authors
Grice, E. A., & Segre, J. A.
Affiliations
National Institutes of Health (US)
Corresponding author
Segre, Julia A.
Venue
Nature Reviews Microbiology
Published
2011-03-16
Volume
9
Issue
4
Pages
244-253
ISSN
  • 1740-1526 (ISSN-L)
  • 1740-1534
OpenAlex
W2047885502
Cited by
3,143
References
108
Citations by year
2026: 198 · 2025: 269 · 2024: 265 · 2023: 287 · 2022: 274 · 2021: 312 · 2020: 282 · 2019: 214 · 2018: 214 · 2017: 200 · 2016: 174 · 2015: 136 · 2014: 120 · 2013: 102 · 2012: 68
FWCI
16.63
Type
journal article
Language
en
Update notices
erratum (2011-06-27)
Open access
Locations
  • Nature Reviews Microbiology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Human Genome Research Institute (ZIAHG000180)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (AR057504)
Topics
  • Health Sciences › Medicine › Dermatology › Dermatology and Skin Diseases
  • Health Sciences › Medicine › Dermatology › Contact Dermatitis and Allergies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
Keywords
skin microbiome, skin colonization, host factors, environmental factors, skin diseases, microbial diversity, antimicrobial therapy
MeSH terms
Humans, Immunity, Innate, Skin, Skin Diseases, Infectious, Metagenome, Adaptive Immunity

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