Balanced skin cell turnover
Immune-driven skin cell hyperproliferation↓
Also searched as Psoriasis · Immune-driven skin cell hyperproliferation.
One cytokine family carries most of this disease. Blocking IL-17 clears the skin outright in a large share of patients, which is why the single lane above this pathway is also its strongest link.
In depth
Chronic inflammatory skin disease in which the immune system drives keratinocytes to divide far too fast, raising scaled plaques.
What drives it
Skin reduces it.
Named across six reviews of atopic dermatitis and psoriasis as part of the shared barrier-inflammation mechanism set. doi 10.3389/fimmu.2025.1541776 · PMC11007107
Immune support reduces it.
Named across six reviews of atopic dermatitis and psoriasis as part of the shared barrier-inflammation mechanism set. doi 10.3389/fimmu.2025.1541776 · PMC11007107
Calms body-wide inflammation increases it.
defects in skin barrier-related molecules interact with the polarization of T cells, which forms a skin barrier-inflammatory loop with them; this loop contributes to the chronicity of the primary disease or the transition between psoriasis and AD. doi 10.3389/fimmu.2025.1541776 · PMC11007107
Calms inflammation increases it.
Named across six reviews of atopic dermatitis and psoriasis as part of the shared barrier-inflammation mechanism set. doi 10.3389/fimmu.2025.1541776 · PMC11007107
Oxidative stress increases it.
Named across six reviews of atopic dermatitis and psoriasis as part of the shared barrier-inflammation mechanism set. doi 10.3389/fimmu.2025.1541776 · PMC11007107
Antioxidant defense reduces it.
Named across six reviews of atopic dermatitis and psoriasis as part of the shared barrier-inflammation mechanism set. doi 10.3389/fimmu.2025.1541776 · PMC11007107
Inflammatory signaling increases it.
C. acnes promotes inflammation via TLR2 and TLR4; TLR signals induce NF-kB-dependent expression of NLRP3, pro-IL-18 and pro-IL-1beta. Androgens raise sebum secretion, triggering acne. doi 10.21037/atm-22-1362 · PMC2904443
Gut barrier reduces it.
Named across six reviews of atopic dermatitis and psoriasis as part of the shared barrier-inflammation mechanism set. doi 10.3389/fimmu.2025.1541776 · PMC11007107
Innate immune sensor increases it.
C. acnes promotes inflammation via TLR2 and TLR4; TLR signals induce NF-kB-dependent expression of NLRP3, pro-IL-18 and pro-IL-1beta. Androgens raise sebum secretion, triggering acne. doi 10.21037/atm-22-1362 · PMC2904443
Lowers cortisol reduces it.
Named across six reviews of atopic dermatitis and psoriasis as part of the shared barrier-inflammation mechanism set. (PMC11007107; doi 10.3389/fimmu.2025.1541776; PMC7432778; PMC7072946; PMC11312859). REFUTED ON A SECOND READING. This link was shown by linked steps until a source was opened that does not support it: “In summary, psychological stress can exacerbate and/or predispose to the development of psoriasis” — The role of psychological stress in the pathogenesis of psoriasis. PMC12375474, pmid 40861201. doi:10.3389/fmed.2025.1614863 [journal/year/volume/pages not read]. doi 10.3389/fimmu.2025.1541776 · PMID 40861201 · PMC11007107
What it drives
It reduces Heart & blood pressure.
10.1186/s12916-022-02617-5 — Psoriasis carries documented cardiovascular comorbidity. doi 10.1186/s12916-022-02617-5
It reduces Mood.
10.1001/archdermatol.2010.186 — This is what the symptom costs rather than what it causes physiologically. It is shown at reduced weight because no separate effect size has been reported for this arm. The asymmetry is deliberate and stated. Visible skin disease carries documented psychological burden. This link rests on the reviews of this outcome as a whole, and no effect size specific to it has been reported. doi 10.1001/archdermatol.2010.186
It reduces Joint comfort.
10.3390/ijms24054901 — Psoriatic arthritis is a recognized progression. doi 10.3390/ijms24054901
It reduces Sleep.
10.3390/jcm11195553 — Pruritus and discomfort disrupt sleep. Low. doi 10.3390/jcm11195553
Blends that modulate it
Each blend page names this pathway and carries the study behind its claim.
See it on the map
Open the causal map to follow this pathway upstream and downstream, arrow by arrow, each with its study.