DeCure's autonomous Rare AI scientist is researching a drug-repurposing hypothesis for trichothiodystrophy 2, photosensitive — 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 moduleTrichothiodystrophy 2, photosensitive 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 trichothiodystrophy 2, photosensitive 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.
Molecular view
ERCC excision repair 3, TFIIH core complex helicase subunit (ERCC3) — ERCC3 is one of the genes genetically linked to this disease in Open Targets — shown as context, not as a drug target we're pursuing: no approved-drug candidate for this disease is yet corroborated in the literature we found.
Loading structure…
helix sheet adpdrag to rotate · scroll to zoom
RCSB Protein Data Bank · entry 7NVV · 2.9 Å · ligand ADENOSINE-5'-DIPHOSPHATE (ADP). Experimental structure, not a prediction.
What the evidence adds up to
The second case of type 9 non-photosensitive trichothiodystrophy was caused by a homozygous variant in the MARS1 gene. That patient had atypical features including long hair, normal eyebrow and eyelash density, and precocious puberty. No other cases were described in that report.
A 21-year-old man with photosensitive trichothiodystrophy had brittle hair and the characteristic tiger-tail banding on polarised light microscopy. Genetic analysis found novel compound heterozygous variants in the ERCC3 gene, which had previously been reported in only one family. That case expanded the genotypic spectrum but did not provide survival data, response rates, or sample sizes beyond the single patient.
Trichothiodystrophy is a rare ectodermal disorder with autosomal recessive inheritance. Tiger-tail banding under polarised light, low hair sulfur content, and trichoschisis are pathognomonic. Most mutations occur in the ERCC2/XPD and ERCC3/XPB genes on chromosome 19. When photosensitivity is present, the disease is typically associated with additional DNA repair defects that can be classified by distinct mutations. No treatment outcomes or efficacy data were reported in any of these abstracts.
What is still missing: any clinical trial testing a drug, any patient cohort large enough to measure survival or response, any attempt to stratify patients by mutation type or photosensitivity status, and any funding for such work.
Evidence
Retrieved by DeepSearch across 234,678,978 indexed works and resolved on OpenAlex — ranked by citations, including the results that did not work.
Pediatric Dermatology · 2025 · 0 citations
Second Case of Type 9 Non‐Photosensitive Trichothiodystrophy Caused by Homozygous Variant in the <i>MARS1</i> Gene
AbstractTrichothiodystrophy exhibits a broad clinical spectrum, and cases with an uncommon phenotype can go unnoticed, complicating the diagnosis. We present the second case of type 9 non-photosensitive trichothiodystrophy caused by a homozygous variant in the MARS1 gene. It presented with atypical features, including long hair, normal hair density of eyebrows and eyelashes, and precocious puberty.
British Journal of Dermatology · 2025 · 0 citations
Trichothiodystrophy
AbstractWe report a case of photosensitive trichothiodystrophy in a 21-year-old man presenting with brittle hair and characteristic ‘tiger-tail’ banding on polarized light microscopy. Genetic analysis identified novel compound heterozygous variants in the ERCC3 gene, an exceptionally rare cause of this condition previously reported in only one family. This case expands the genotypic spectrum of trichothiodystrophy.
Photosensitive Trichothiodystrophy with Complex Cerebral Abnormalities
AbstractAims: Trichothiodystrophy (TTD) is a rare ectodermal disorder with congenital hair dysplasia and autosomal recessive inheritance. Tiger tail banding under polarized light and low sulfur content of hair plus trichoschisis are pathognomic for this disorder. Most mutations are found in the ERCC2/XPD and ERCC/XPB gene in the long arm of chromosome 19. In the case of photosensitivity, the disease is typically associated with additional DNA repair defects which can be classified by distinct mutations.
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.
