Rare & Orphan Lab · DeCure for X

DeCure for Microcephaly-micromelia syndrome

DeCure's autonomous Rare AI scientist is researching a drug-repurposing hypothesis for microcephaly-micromelia syndrome — 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
All cures
Rare & OrphanDOID:0081432$DeCureRare

The disease map

Disease moduleMicrocephaly-micromelia syndrome 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 microcephaly-micromelia syndrome 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

The 2011 study found that the Angelman syndrome protein UBE3A interacts with the primary microcephaly protein ASPM and localises to centrosomes. In HEK293 cells, shRNA knockdown of UBE3A caused mitotic abnormalities including chromosome missegregation, abnormal cytokinesis and apoptosis. The authors note that more than 80% of Angelman syndrome patients have microcephaly, but that unlike in primary microcephaly, the microcephaly in Angelman syndrome is postnatal. No drug or intervention was tested.

A 2017 study reports that mutations in KIF14, encoding a kinesin-like protein, cause both primary and syndromic microcephaly. The majority of known microcephaly genes encode proteins implicated in cell division and many localise to the centrosome. No treatment is discussed.

A 1996 case report describes a male child with "apple peel" intestinal atresia, microcephaly, hydrocephalus, short stature, moderate global developmental delay and ocular abnormalities. The authors consider this a distinct syndromic entity. A 2021 clinical case report discusses orofacial manifestations in two children with severe microcephaly, noting similar facial and occlusion patterns, and suggests future studies on preventive and interceptive therapeutics. No drug is mentioned in either report.

What is missing is any clinical trial of a drug for microcephaly-micromelia syndrome, any patient stratification by genotype, and any funding for such work. The basic biology points to centrosome and mitotic defects, but no compound has been tested in patients or animal models of this specific syndrome.

Evidence

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

PLoS ONE · 2011 · 33 citations · open access

Angelman Syndrome Protein UBE3A Interacts with Primary Microcephaly Protein ASPM, Localizes to Centrosomes and Regulates Chromosome Segregation

AbstractMany proteins associated with the phenotype microcephaly have been localized to the centrosome or linked to it functionally. All the seven autosomal recessive primary microcephaly (MCPH) proteins localize at the centrosome. Microcephalic osteodysplastic primordial dwarfism type II protein PCNT and Seckel syndrome (also characterized by severe microcephaly) protein ATR are also centrosomal proteins. All of the above findings show the importance of centrosomal proteins as the key players in neurogenesis and brain development. However, the exact mechanism as to how the loss-of-function of these proteins leads to microcephaly remains to be elucidated. To gain insight into the function of the most commonly mutated MCPH gene ASPM, we used the yeast two-hybrid technique to screen a human fetal brain cDNA library with an ASPM bait. The analysis identified Angelman syndrome gene product UBE3A as an ASPM interactor. Like ASPM, UBE3A also localizes to the centrosome. The identification of UBE3A as an ASPM interactor is not surprising as more than 80% of Angelman syndrome patients have microcephaly. However, unlike in MCPH, microcephaly is postnatal in Angelman syndrome patients. Our results show that UBE3A is a cell cycle regulated protein and its level peaks in mitosis. The shRNA knockdown of UBE3A in HEK293 cells led to many mitotic abnormalities including chromosome missegregation, abnormal cytokinesis and apoptosis. Thus our study links Angelman syndrome protein UBE3A to ASPM, centrosome and mitosis for the first time. We suggest that a defective chromosome segregation mechanism is responsible for the development of microcephaly in Angelman syndrome.

https://doi.org/10.1371/journal.pone.0020397
International Journal of Paediatric Dentistry · 2002 · 31 citations

Riga–Fede disease: association with microcephaly

AbstractA case of microcephaly associated with traumatic ulceration to the ventral surface of the tongue (Riga-Fede disease) in a 12-month-old female is presented. To the best of our knowledge, such association has not been described previously. A conservative treatment regime was used, involving medical management, elimination of the sharp edges of the teeth and use of topical triamcinolone, and the ulceration healed over a period of 4 weeks.

https://doi.org/10.1046/j.1365-263x.2002.00396.x
Clinical Genetics · 1996 · 20 citations

Further evidence for a syndrome of “apple peel” intestinal atresia, ocular anomalies and microcephaly

AbstractWe report on a male child with "apple peel" atresia, associated with microcephaly, with subsequent hydrocephalus, short stature, moderate global developmental delay and ocular abnormalities. A similar phenotype was previously reported by Stromme et al. in 1993 in female siblings, and this description of another affected individual provides further evidence for this being a distinct syndromic entity.

https://doi.org/10.1111/j.1399-0004.1996.tb02640.x
European Journal of Dental and Oral Health · 2021 · 1 citations · open access

Correlation of Facial, Dental and Oral Functions of Children with Microcephaly: Clinical Case Report

AbstractThis paper discusses the orofacial manifestations of children diagnosed with severe microcephaly according to the World Health Organization. Microcephaly is a clinical condition made at or after birth that characterizes a significant reduction in head circumference, which may present craniofacial, neurological, and oral alterations as a result of this malformation. As skull growth is linked to facial growth, can patients with microcephaly have structural and functional impairments? Will these possible changes be expressed before skeletal maturity? These issues are discussed through the presentation of two relevant clinical reports of children diagnosed with severe microcephaly with similar clinical facial and occlusion patterns.. Studies along these lines should be conducted with a view to future attempts to minimize possible effects of this malformation on the craniofacial complex with preventive and interceptive therapeuticals in these individuals.

https://doi.org/10.24018/ejdent.2021.2.5.91
Neuropediatrics · 2017 · 0 citations

Mutations in KIF14, Encoding Kinesin-Like Protein KIF14, Cause Primary and Syndromic Microcephaly

AbstractPrimary microcephaly (small head) is a neurodevelopmental disorder characterized by a reduction in the size of the cerebral cortex accompanied with mild to moderate intellectual disability. This condition is observed either as an isolated form referred to as autosomal recessive primary microcephaly (MCPH) or in combination with additional features like growth retardation, renal and cranio-facial abnormalities or others subsumed under syndromic microcephaly. Both MCPH and syndromic microcephaly are heterogeneous disorders caused by mutations of many different genes. The majority of these genes encode proteins implicated in cell division and many of them have been localized at the centrosome.

https://doi.org/10.1055/s-0037-1602886
American Journal of Medical Genetics · 2000 · 0 citations

Colobomatous microphthalmia, microcephaly with cerebellar hypoplasia: Association or new syndrome?

AbstractWe report on a 3.5-year-old girl with microcephaly, microphthalmia, coloboma of the iris, mild developmental delay, and other minor anomalies. Neuroimaging showed marked cerebellar and vermian hypoplasia. This condition has not been described previously and is discussed in the context of the “micro syndrome,” together with other similar syndromes. Our case highlights the heterogeneity of the “microphthalmia plus brain malformations” group of patients. Am. J. Med. Genet. 92:278–280, 2000. © 2000 Wiley-Liss, Inc.

https://doi.org/10.1002/(sici)1096-8628(20000605)92:4<278::aid-ajmg11>3.3.co;2-2

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.