Subtopic Deep Dive
Pathogenesis of Hidradenitis Suppurativa Inflammatory Pathways
Research Guide
What is Pathogenesis of Hidradenitis Suppurativa Inflammatory Pathways?
Pathogenesis of Hidradenitis Suppurativa (HS) inflammatory pathways encompasses cytokine dysregulation including IL-17, IL-23, and TNF-α in HS lesions, driven by follicular occlusion and immune activation.
HS involves chronic inflammation in apocrine gland-bearing skin with elevated TNF-α, IL-17, and IL-23 detected via biopsy transcriptomics (Vossen et al., 2018, 222 citations). Proteomic and transcriptomic analyses reveal B cell and plasma cell contributions to pathogenesis (Guðjónsson et al., 2020, 173 citations). Over 20 papers since 2012 link these pathways to HS lesion formation.
Why It Matters
Understanding HS inflammatory pathways directs targeted therapies like TNF-α blockers, approved by FDA for related conditions (Aggarwal et al., 2013, 387 citations). Vossen et al. (2018) integrate pathways into models predicting response to biologics such as anti-IL-17 agents. Guðjónsson et al. (2020) highlight B cell roles, informing immunomodulators; Wolk et al. (2020, 150 citations) connect etiology to anti-TNF efficacy (Lowe et al., 2020, 131 citations), reducing comorbidities like spondyloarthritis (Richette et al., 2014, 119 citations).
Key Research Challenges
Cytokine Dysregulation Mechanisms
Precise triggers linking follicular occlusion to IL-17/IL-23/TNF-α upregulation remain unclear despite transcriptomics (Vossen et al., 2018). Animal models inadequately replicate human HS lesions (Zouboulis et al., 2020, 177 citations). Heterogeneity in lesion stages complicates pathway mapping (Wolk et al., 2020).
B Cell and Plasma Cell Roles
Proteomic data show B cell infiltration in HS skin, but functional contributions to chronicity need validation (Guðjónsson et al., 2020). Antibody-producing cells drive inflammation, yet targeted depletion trials lack (Lowe et al., 2020). Comorbidities like IBD obscure HS-specific B cell effects (Huang et al., 2012, 196 citations).
Therapy Response Prediction
Anti-TNF-α response varies due to uncharacterized pathway dominance (Lowe et al., 2020). IL-17 inhibitors show promise but biomarkers absent (Fletcher et al., 2020, 136 citations). Patient stratification by inflammatory profiles requires longitudinal biopsy data (Garg et al., 2021, 194 citations).
Essential Papers
Curcumin: an orally bioavailable blocker of <scp>TNF</scp> and other pro‐inflammatory biomarkers
Bharat B. Aggarwal, Subash C. Gupta, Bokyung Sung · 2013 · British Journal of Pharmacology · 387 citations
TNFs are major mediators of inflammation and inflammation‐related diseases, hence, the U nited S tates F ood and D rug A dministration ( FDA ) has approved the use of blockers of the cytokine, TNF ...
Hidradenitis Suppurativa: A Systematic Review Integrating Inflammatory Pathways Into a Cohesive Pathogenic Model
Allard R.J.V. Vossen, Hessel H. van der Zee, Errol P. Prens · 2018 · Frontiers in Immunology · 222 citations
<b>Background:</b> The pathogenesis of hidradenitis suppurativa (HS) is not fully understood. This systematic review examined the latest evidence for molecular inflammatory pathways involved in HS ...
Skin Manifestations of Inflammatory Bowel Disease
Brian Huang, Stephanie Chandra, David Q. Shih · 2012 · Frontiers in Physiology · 196 citations
Inflammatory bowel disease (IBD) is a disease that affects the intestinal tract via an inflammatory process. Patients who suffer from IBD often have diseases that affect multiple other organ system...
Comorbidity screening in hidradenitis suppurativa: Evidence-based recommendations from the US and Canadian Hidradenitis Suppurativa Foundations
Amit Garg, Neeta Malviya, Andrew Strunk et al. · 2021 · Journal of the American Academy of Dermatology · 194 citations
Dermatologists should support screening efforts to identify comorbid conditions in HS.
What causes hidradenitis suppurativa ?—15 years after
Christos C. Zouboulis, Farida Benhadou, Angel S. Byrd et al. · 2020 · Experimental Dermatology · 177 citations
Abstract The 14 authors of the first review article on hidradenitis suppurativa (HS) pathogenesis published 2008 in EXPERIMENTAL DERMATOLOGY cumulating from the 1st International Hidradenitis Suppu...
Contribution of plasma cells and B cells to hidradenitis suppurativa pathogenesis
Jóhann E. Guðjónsson, Lam C. Tsoi, Feiyang Ma et al. · 2020 · JCI Insight · 173 citations
Hidradenitis suppurativa (HS) is a debilitating chronic inflammatory skin disease characterized by chronic abscess formation and development of multiple draining sinus tracts in the groin, axillae,...
Aetiology and pathogenesis of hidradenitis suppurativa
Kerstin Wolk, Olivier Join‐Lambert, Robert Sabat · 2020 · British Journal of Dermatology · 150 citations
Hidradenitis suppurativa (HS) is a chronic inflammatory disorder. Patients develop inflamed nodules and abscesses and, at later stages of disease, epithelialized tunnels and scars in skinfolds of a...
Reading Guide
Foundational Papers
Aggarwal et al. (2013, 387 citations) establishes TNF-α mediation; Huang et al. (2012, 196 citations) links IBD skin inflammation to HS comorbidities; Marzano et al. (2013, 133 citations) details cutaneous IBD parallels foundational for HS extraintestinal understanding.
Recent Advances
Vossen et al. (2018, 222 citations) cohesive pathogenic model; Guðjónsson et al. (2020, 173 citations) B cell proteomics; Wolk et al. (2020, 150 citations) etiology overview.
Core Methods
Transcriptomics/proteomics on biopsies (Guðjónsson et al., 2020); systematic reviews of inflammatory mediators (Vossen et al., 2018); single-cell RNA-seq for cytokine mapping (Lowe et al., 2020).
How PapersFlow Helps You Research Pathogenesis of Hidradenitis Suppurativa Inflammatory Pathways
Discover & Search
Research Agent uses searchPapers('hidradenitis suppurativa IL-17 TNF pathogenesis') to retrieve 250+ OpenAlex papers, then citationGraph on Vossen et al. (2018) maps 222-cited pathway models to Guðjónsson et al. (2020); findSimilarPapers expands to B cell studies, exaSearch uncovers unpublished preprints on IL-23.
Analyze & Verify
Analysis Agent applies readPaperContent to extract cytokine profiles from Lowe et al. (2020), verifyResponse with CoVe cross-checks TNF-α claims against Aggarwal et al. (2013); runPythonAnalysis on transcriptomic data from Guðjónsson et al. (2020) computes differential expression stats with pandas/NumPy, GRADE grades evidence as high for IL-17 pathways.
Synthesize & Write
Synthesis Agent detects gaps in B cell-targeted therapies via contradiction flagging across Zouboulis et al. (2020) and Wolk et al. (2020); Writing Agent uses latexEditText for pathway diagrams, latexSyncCitations integrates 10 HS papers, latexCompile generates review PDF, exportMermaid visualizes IL-17/TNF cascades.
Use Cases
"Analyze IL-17 expression levels across HS lesion transcriptomics datasets"
Research Agent → searchPapers → Analysis Agent → runPythonAnalysis (pandas heatmap of cytokines from Guðjónsson et al. 2020 data) → matplotlib plot of IL-17 vs TNF fold-changes.
"Draft LaTeX review of HS TNF pathways with citations"
Synthesis Agent → gap detection → Writing Agent → latexEditText (pathogenesis section) → latexSyncCitations (Aggarwal 2013, Vossen 2018) → latexCompile → PDF with figure.
"Find code for HS biopsy RNA-seq analysis"
Research Agent → paperExtractUrls (Guðjónsson 2020) → paperFindGithubRepo → githubRepoInspect → runPythonAnalysis on shared scripts for pathway enrichment.
Automated Workflows
Deep Research workflow conducts systematic review: searchPapers(50+ HS cytokines) → citationGraph → DeepScan(7-step verify on Vossen 2018) → structured report with GRADE scores. Theorizer generates hypotheses on IL-23 blockade from Lowe et al. (2020) + Fletcher et al. (2020), chain-of-verification reduces errors. DeepScan analyzes comorbidities via exaSearch on Garg et al. (2021).
Frequently Asked Questions
What defines HS inflammatory pathways?
Cytokine dysregulation with IL-17, IL-23, TNF-α elevation in HS lesions from follicular occlusion and immune activation (Vossen et al., 2018).
What methods study HS pathogenesis?
Biopsy transcriptomics, proteomics identify B cells and cytokines (Guðjónsson et al., 2020); systematic reviews integrate pathways (Vossen et al., 2018).
What are key papers on HS inflammation?
Vossen et al. (2018, 222 citations) models pathways; Guðjónsson et al. (2020, 173 citations) details B cells; Aggarwal et al. (2013, 387 citations) on TNF blockade.
What open problems exist in HS pathways?
Biomarkers for anti-TNF response, functional B cell roles, and animal models replicating human lesions remain unsolved (Lowe et al., 2020; Zouboulis et al., 2020).
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