Rare & Orphan Lab · DeCure for X

DeCure for Dehydrated hereditary stomatocytosis

DeCure's autonomous Rare AI scientist is researching a drug-repurposing hypothesis for dehydrated hereditary stomatocytosis — screening already-approved drugs against its 4-gene Open Targets disease module to publish open-access research. Research is fast; the path to publication is funded in milestone stages.

Disease module4 genesLead labRare & Orphan
All cures
Rare & OrphanDOID:0111575$DeCureRare

The disease map

Disease moduleDehydrated hereditary stomatocytosis maps to a 4-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 dehydrated hereditary stomatocytosis 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

solute carrier family 4 member 1 (Diego blood group) (SLC4A1)SLC4A1 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 clrdrag to rotate · scroll to zoom

RCSB Protein Data Bank · entry 7UZ3 · 2.35 Å · ligand CHOLESTEROL (CLR). Experimental structure, not a prediction.

What the evidence adds up to

Dehydrated hereditary stomatocytosis is a rare genetic defect of the erythrocyte membrane that increases permeability to sodium and potassium. A 1999 review notes that splenectomy in these patients carries a marked risk for thrombosis in adult life, making diagnostic distinction from hereditary spherocytosis important. The gene for dehydrated hereditary stomatocytosis and the related non-haemolytic variant familial pseudohyperkalemia was mapped to 16q23-qter. Overhydrated hereditary stomatocytosis, a separate form, lacks the protein stomatin in the erythrocyte membrane, but its cause remained elusive at that time.

A 2025 review states that causative genes now identified include PIEZO1, KCNN4, and ABCB6. Gain-of-function mutations in PIEZO1 account for dehydrated hereditary stomatocytosis and produce a pleiotropic syndrome with different phenotypes depending on PIEZO1 expression in multiple cells and tissues. Hepatic iron overload is directly associated with the physiological role of PIEZO1 at hepatic and macrophagic levels. The review covers clinical presentation, pathophysiology, molecular genetics, diagnosis, and management, but provides no quantitative data on survival, response rates, or sample sizes.

A 2015 case report describes a 10-year-old male from Kashmir with hereditary stomatocytosis. The authors state that only eight families with this condition had been described worldwide at that time. No treatment outcomes or drug interventions are reported in any of these abstracts.

What is still missing: no controlled trials exist for any drug in dehydrated hereditary stomatocytosis. There is no patient stratification by genotype, no funding for prospective studies, and no trial design that accounts for the pleiotropic effects of PIEZO1 mutations.

Evidence

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

Current Opinion in Hematology · 1999 · 58 citations

Hereditary dehydrated and overhydrated stomatocytosis: recent advances

AbstractThe hereditary stomatocytoses and allied disorders are genetic defects of the erythrocyte membrane that result in abnormal permeability to the univalent cations Na+ and K+. Although rare, these conditions reflect abnormalities in physiologic mechanisms that are of paramount interest. All cases (as defined here) show increased plasma membrane permeability to Na+ and K+ and, to a greater or lesser degree, stomatocytic morphology. Dehydrated hereditary stomatocytosis, the most common form of hereditary stomatocytosis, is more heterogeneous than previously thought and includes kindreds showing pseudohyperkalemia or perinatal edema, or both. The gene responsible for both dehydrated hereditary stomatocytosis and familial pseudohyperkalemia, a nonhemolytic variant that presents with high plasma K+ levels, has been mapped to 16q23-qter. The cause of overhydrated hereditary stomatocytosis remains elusive despite the manifest lack of the enigmatic protein stomatin in the erythrocyte membrane. In all cases where splenectomy has been performed, this procedure has conferred a marked risk for thrombosis in adult life. This finding stresses the importance of diagnostic distinction between these conditions and hereditary spherocytosis.

https://doi.org/10.1097/00062752-199903000-00009
Blood · 2025 · 11 citations

The evolving landscape of hereditary stomatocytosis

AbstractABSTRACT: Hereditary stomatocytosis represents a heterogeneous group of inherited erythrocyte membrane defects characterized by hemolytic anemia of variable degree, with alterations in cellular salt and water, ranging from dehydration to overhydration, and the presence of stomatocytes on peripheral blood smear. This condition encompasses various subtypes, each with distinct clinical and genetic features. The pathophysiology underlying these conditions involves altered red blood cell membrane properties, leading to impaired deformability and alterations in cation permeability and volume, causing increased susceptibility to hemolysis. Advancements in genetic testing have enabled the identification of some causative genes in the last years, such as PIEZO1, KCNN4, and ABCB6. These genetic discoveries have facilitated a deeper understanding of the molecular mechanisms underlying the pathogenesis and have paved the way for improved diagnostic accuracy and genetic counseling. This review provides an overview of the clinical presentation, pathophysiology, molecular genetics, diagnosis, and management strategies of hereditary stomatocytosis, highlighting recent advancements in the field of dehydrated hereditary stomatocytosis (DHS), or hereditary xerocytosis, and hepatic iron overload. This latter is directly associated with the physiological role of PIEZO1, the causative gene of DHS, at hepatic and macrophagic levels. Particularly, gain-of-function mutations in PIEZO1 account for a pleiotropic syndrome characterized by different phenotypes depending on the expression of PIEZO1 in multiple cells and tissues.

https://doi.org/10.1182/blood.2024024294
Medical Journal of Dr D Y Patil University · 2015 · 5 citations · open access

Hereditary stomatocytosis: First case report from Valley of Kashmir

AbstractStomatocytes are erythrocytes with a central slit or mouth-shaped (stoma) area of central pallor when examined on dried smears. In wet preparations, they are uniconcave rather than biconcave, giving them a bowllike appearance. <i>In vitro</i>, stomatocytes are produced by drugs that intercalate into the inner half of the lipid bilayer, thereby expanding the inner lipid surface area relative to that of the outer half of the bilayer. Hereditary stomatocytosis (also known as hereditary hydrocytosis, or overhydrated stomatocytosis) refers to a heterogeneous group of autosomal dominant hemolytic anemias caused by altered sodium permeability of the red cell membrane. We present the first case report of hereditary stomatocytosis in a 10-year-old male from the valley of Kashmir. Only eight families with this condition have been described worldwide.

https://doi.org/10.4103/0975-2870.157083

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.