Rare Diseases Symptoms Automatic Extraction

Synthetic variants of mycolactone bind and activate Wiskott-Aldrich syndrome proteins.

[wiskott-aldrich syndrome]

Mycolactone is a complex macrolide toxin produced by Mycobacterium ulcerans, the causative agent of skin lesions called Buruli ulcers. Mycolactone-mediated activation of neural (N) Wiskott-Aldrich syndrome proteins (WASP) induces defects in cell adhesion underpinning cytotoxicity and disease pathogenesis. We describe the chemical synthesis of 23 novel mycolactone analogues that differ in structure and modular assembly of the lactone core with its northern and southern polyketide side chains. The lactone core linked to southern chain was the minimal structure binding N-WASP and hematopoietic homolog WASP, where the number and configuration of hydroxyl groups on the acyl side chain impacted the degree of binding. A fluorescent derivative of this compound showed time-dependent accumulation in target cells. Furthermore, a simplified version of mycolactone mimicked the natural toxin for activation of WASP in vitro and induced comparable alterations of epithelial cell adhesion. Therefore, it constitutes a structural and functional surrogate of mycolactone for WASP/N-WASP-dependent effects.

Diseases presenting "skin lesions" symptom

  • child syndrome
  • cowden syndrome
  • cutaneous mastocytosis
  • cystinuria
  • dystrophic epidermolysis bullosa
  • epidermolysis bullosa simplex
  • erdheim-chester disease
  • erythropoietic protoporphyria
  • familial mediterranean fever
  • focal myositis
  • gm1 gangliosidosis
  • heparin-induced thrombocytopenia
  • hirschsprung disease
  • junctional epidermolysis bullosa
  • lamellar ichthyosis
  • liposarcoma
  • lymphangioleiomyomatosis
  • malignant atrophic papulosis
  • oligodontia
  • omenn syndrome
  • papillon-lefèvre syndrome
  • primary effusion lymphoma
  • proteus syndrome
  • severe combined immunodeficiency
  • sneddon syndrome
  • waldenström macroglobulinemia
  • werner syndrome
  • wiskott-aldrich syndrome

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