DeCure for Autosomal recessive congenital ichthyosis 4B
DeCure's autonomous Dermatology AI scientist is researching a drug-repurposing hypothesis for autosomal recessive congenital ichthyosis 4B — screening already-approved drugs against its 1-gene Open Targets disease module to publish open-access research. Research is fast; the path to publication is funded in milestone stages.
Disease moduleAutosomal recessive congenital ichthyosis 4B maps to a 1-gene Open Targets module — the target space DeCure's AI scientist screens approved drugs against.
DeCure.ai methodSignature reversal (LINCS) plus network proximity (STRING) rank already-approved drugs likely to perturb this module — the same engine that produces DeCure.ai's repurposing hypotheses.
Repurposing thesisScreening approved medicines against this disease module, then publishing the evidence for the strongest candidate. Known pharmacology and human exposure data make the first question sharper — they do not establish safety or efficacy in a new indication.
Research record
01
ResearchComing soon
Candidate research + dossier — target rationale, drug-repurposing thesis and evidence pack.proof: Published dossier + on-chain hash
02
ValidationComing soon
In-vitro biological validation at a contract research org (CRO).proof: CRO contract + in-vitro report
03
Peer review & paperComing soon
Peer-reviewed paper published open-access (preprint + journal).proof: DOI + open-access link + on-chain hash
Current lead
No approved-drug candidate for autosomal recessive congenital ichthyosis 4b is corroborated in the literature DeepSearch retrieved. Some conditions are managed with non-pharmacological care — a device, surgery or physical therapy — rather than a medicine; that may be the case here, or the literature we found may simply be too sparse yet to support a drug-repurposing angle.
What the evidence adds up to
A 2018 European guideline paper covers management of complications and particularities of some congenital ichthyosis forms, but provides no new trial data for autosomal recessive congenital ichthyosis 4B. A 2012 study describes a spontaneous Fatp4/Slc27a4 splice site mutation in mice that produces newborn lethality with severe congenital lamellar ichthyosis. Mutant newborns have a taut, shiny, non-expandable epidermis that immobilises them. The mutation deletes exon 9, causing a frame shift upstream of the conserved very long-chain acyl-CoA synthase domain. Histology shows defects in keratinocyte differentiation, hyperproliferation of the stratum basale, a hyperkeratotic stratum corneum, and reduced numbers of secondary hair follicles. The authors suggest very long chain fatty acids may influence signals from the stratum corneum to basal cells that orchestrate normal skin differentiation.
A 2014 case report on lamellar ichthyosis describes management and complete oral rehabilitation of a single patient, but provides no survival or response rate data. No abstract reports any drug tested in human patients with autosomal recessive congenital ichthyosis 4B. No abstract gives a sample size of treated patients, a response rate, or a survival statistic for this specific disease.
What is still missing: any clinical trial of a drug in patients with this specific genetic subtype, any human efficacy data, any patient stratification strategy, and any funding for such a trial.
Evidence
Retrieved by DeepSearch across 234,678,978 indexed works and resolved on OpenAlex — ranked by citations, including the results that did not work.
British Journal of Dermatology · 2018 · 116 citations · open access
Management of congenital ichthyoses: European guidelines of care, part two
AbstractThese guidelines for the management of congenital ichthyoses have been developed by a multidisciplinary group of European experts following a systematic review of the current literature, an expert conference held in Toulouse in 2016, and a consensus on the discussions. These guidelines summarize evidence and expert-based recommendations and intend to help clinicians with the management of these rare and often complex diseases. These guidelines comprise two sections. This is part two, covering the management of complications and the particularities of some forms of congenital ichthyosis.
A Spontaneous Fatp4/Scl27a4 Splice Site Mutation in a New Murine Model for Congenital Ichthyosis
AbstractCongenital ichthyoses are life-threatening conditions in humans. We describe here the identification and molecular characterization of a novel recessive mutation in mice that results in newborn lethality with severe congenital lamellar ichthyosis. Mutant newborns have a taut, shiny, non-expandable epidermis that resembles cornified manifestations of autosomal-recessive congenital ichthyosis in humans. The skin is stretched so tightly that the newborn mice are immobilized. The genetic defect was mapped to a region near the proximal end of chromosome 2 by SNP analysis, suggesting Fatp4/Slc27a4 as a candidate gene. FATP4 mutations in humans cause ichthyosis prematurity syndrome (IPS), and mutations of Fatp4 in mice have previously been found to cause a phenotype that resembles human congenital ichthyoses. Characterization of the Fatp4 cDNA revealed a fusion of exon 8 to exon 10, with deletion of exon 9. Genomic sequencing identified an A to T mutation in the splice donor sequence at the 3'-end of exon 9. Loss of exon 9 results in a frame shift mutation upstream from the conserved very long-chain acyl-CoA synthase (VLACS) domain. Histological studies revealed that the mutant mice have defects in keratinocyte differentiation, along with hyperproliferation of the stratum basale of the epidermis, a hyperkeratotic stratum corneum, and reduced numbers of secondary hair follicles. Since Fatp4 protein is present primarily at the stratum granulosum and the stratum spinosum, the hyperproliferation and the alterations in hair follicle induction suggest that very long chain fatty acids, in addition to being required for normal cornification, may influence signals from the stratum corneum to the basal cells that help to orchestrate normal skin differentiation.
JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH · 2014 · 11 citations · open access
Lamellar Icthyosis – A case Report
AbstractAutosomal recessive congenital ichthyosis is a heterogenous group of disorders that are present at birth with generalized involvement of skin and lack of other organ systems. Clinical presentation, pattern of inheritance, and laboratory evaluation may establish a precise diagnosis, which can assist in prognosis and genetic counseling. There is a little knowledge about the oral manifestations of these disorders.This case report presents management and complete oral rehabilitation of a rare case of lamellar ichthyosis.
Disease module: DeepOracle (Open Targets). Structures: RDKit from PubChem SMILES. Literature: retrieved by DeepSearch across 234,678,978 indexed works (targeted per-candidate search), resolved on OpenAlex.
DeCure is a research and publication project, not medical advice and not a treatment. "DeCure for X" describes a research goal, not a claim that a cure exists. Backing a cure is a contribution to fund the research — it is not an investment, and confers no yield, royalty, equity or IP ownership. Papers are published open-access by the DeCure.ai DAO.
