Rare & Orphan Lab · DeCure for X

DeCure for Syndromic X-linked intellectual disability Raymond type

DeCure's autonomous Rare AI scientist is researching a drug-repurposing hypothesis for syndromic X-linked intellectual disability Raymond type — 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 module1 genesLead labRare & Orphan
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Rare & OrphanDOID:0060824$DeCureRare

The disease map

Disease moduleSyndromic X-linked intellectual disability Raymond type 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 syndromic x-linked intellectual disability raymond type 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

spectrin alpha, non-erythrocytic 1 (SPTAN1)SPTAN1 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 apo structuredrag to rotate · scroll to zoom

RCSB Protein Data Bank · entry 3FB2 · 2.3 Å · ligand none (apo structure). Experimental structure, not a prediction.

What the evidence adds up to

More than 141 genes on the X chromosome have been linked to X-linked intellectual disability since the discovery of FMR1 in 1991, and the number continues to grow as sequencing technologies improve. The classic division into syndromic forms (with additional physical or neurological features) and non-syndromic forms (where intellectual disability is the only consistent feature) is not always clear-cut, because different variants in the same gene can produce either presentation. Raymond type is a syndromic form, but the abstracts provided do not name it or discuss any specific drug or treatment for it.

One abstract reports a novel NLGN4X splicing mutation (g.1202C>A) in two brothers with non-syndromic X-linked intellectual disability. The mutation was identified by X exome sequencing and confirmed by Sanger sequencing. The mother was an unaffected carrier with a skewed X inactivation pattern (100%). The mutation was absent in an unaffected daughter. No treatment or intervention is mentioned in this study.

The remaining abstracts are reviews that catalogue known XLID genes and their pathogenic mechanisms, emphasising that most of the mutated genes affect neural development, cell migration, and synaptic communication. No clinical trial, drug, or repurposing candidate is described in any of the three abstracts. What is still missing for syndromic X-linked intellectual disability Raymond type is any published evidence on drug repurposing, any clinical trial data, any patient stratification strategy, and any dedicated funding for treatment development.

Evidence

Retrieved by DeepSearch across 234,678,978 indexed works and resolved on OpenAlex — ranked by citations, including the results that did not work.

Clinical Genetics · 2020 · 26 citations

Non‐syndromic X linked intellectual disability: Current knowledge in light of the recent advances in molecular and functional studies

AbstractSince the discovery of the FMR1 gene and the clinical and molecular characterization of Fragile X Syndrome in 1991, more than 141 genes have been identified in the X-chromosome in these 28 years thanks to applying continuously evolving molecular techniques to X-linked intellectual disability (XLID) families. In the past decade, array comparative genomic hybridization and next generation sequencing technologies have accelerated gene discovery exponentially. Classically, XLID has been subdivided in syndromic intellectual disability (S-XLID)-where intellectual disability (ID) is always associated with other recognizable physical and/or neurological features-and non-specific or non-syndromic intellectual disability (NS-XLID) where the only common feature is ID. Nevertheless, new advances on the study of these entities have showed that this classification is not always clear-cut because distinct variants in several of these XLID genes can result in S-XLID as well as in NS-XLID. This review focuses on the current knowledge on the XLID genes involved in non-syndromic forms, with the emphasis on their pathogenic mechanism, thus allowing the possibility to elucidate why some of them can give both syndromic and non-syndromic phenotypes.

https://doi.org/10.1111/cge.13698
Greater South Information System · 2015 · 0 citations · open access

Non-Syndromic X Linked Intellectual Disability in Two Brothers with A Novel NLGN4X Gene Splicing Mutation (NC_018934.2: g. 1202C>A)

AbstractX-linked Intellectual Disability (XLID) is an extremely heterogeneous disorder for which many of the causative genes are still unknown.So far, more than one hundred genes of the X chromosome have been found to be altered in males manifesting intellectual disability (ID).NLGN4X is an XLID gene, which has been found, involved in autism and Asperger syndrome involving causative coding mutations.Up to now a few pathological mutations in the promoter and the 5' UTR have been identified.Here we report a non-syndromic X linked Intellectual disability in two brothers with a novel NLGN4X splicing mutation predicted to have a pathogenic effect by the activation of an exonic cryptic acceptor site, with presence of one or more cryptic branch point(s).This mutation g.1202C>A (Genbank accession number NC_018934.2) was identified through X exome sequencing.It was confirmed by Sanger sequencing.The mother was heterozygous with a skewed X inactivation pattern (100%).She is not affected.This variant was predicted to change the splicing process leading to potential alteration of the mRNA.This mutation segregates with the pathological phenotype in all the affected males.However, it was absent in the non-affected daughter, we suggest that it could be in favor of genotype-phenotype correlation.This study also confirms the efficiency of X exome sequencing for identifying specific genetic conditions not clinically suspected.

https://doi.org/10.60692/faaz8-gg065
Encyclopedia of Life Sciences · 2017 · 0 citations

Genetics of <scp>X</scp> ‐Linked Intellectual Disability

AbstractAbstract X‐linked intellectual disability (XLID), formerly called mental retardation , refers to a group of inherited disorders characterised by varying degrees of intellectual disability caused by mutations in various genes present on the X‐chromosome. Deleterious mutations in ∼ 10% of X‐chromosome X genes are implicated in causing XLID disorders in ∼ 50% of families. The remaining XLID genes are expected to be rare and even private to individual families. Historically, XLID is divided into syndromic (IDXS) and nonsyndromic (IDX). At least 209 different XLID disorders have been described including 143 forms of syndromic mental retardation. Fragile X syndrome is the most frequent syndrome and most studied XLID syndrome. It is now possible to identify 64% of the genetic defects in XLID families with obligate female carriers. Most of the mutated genes in XLID are thought to influence development, cell migration, formation and maintenance of neural networks and cell‐to‐cell communication in the brain. Thus, the diagnosis of intellectual disability in a child has an enormous impact in most affected families. Genetic counselling is strongly recommended to family members. Key Concepts X‐linked intellectual disability (XLID) is a very heterogeneous set of conditions responsible for a large proportion of inherited mental retardation. XLID can be divided into syndromic (MRID) and nonsyndromic (IDX). Genes involved in XLID influence development, cell migration, formation and maintenance of neural networks and cell‐to‐cell communication in the brain. Intellectual disability phenotype can emerge as the final common pathway for many different types of abnormal cellular processing. Genetic counselling is an important part in general management in the case of intellectual disability.

https://doi.org/10.1002/9780470015902.a0020231.pub2

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.