4.6 Article

Plasma lipidome acts as diagnostic marker and predictor for cyclosporin response in patients with aplastic anemia

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CLINICAL AND EXPERIMENTAL MEDICINE
卷 23, 期 3, 页码 767-776

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SPRINGER-VERLAG ITALIA SRL
DOI: 10.1007/s10238-022-00826-z

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Aplastic anemia; Hypocellular myelodysplastic syndrome; Plasma lipidome; Diagnosis; Response predictor

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This study investigated the serum lipid profiles in patients with aplastic anemia (AA) before and after cyclosporin (CsA) treatment. The results showed that AA patients had decreased levels of certain lipid metabolites compared to hypocellular myelodysplastic syndrome (h-MDS) patients and healthy controls. Furthermore, CsA treatment significantly reduced the levels of certain lipid metabolites in AA patients.
The lipid metabolomic profile has been well defined in the pathogenesis and differential diagnosis in patients with different myeloid diseases. We assumed that the serum lipid metabolites could also help the diagnosis and prognostic prediction of aplastic anemia (AA). In this study, serum lipid profiles were explored in AA patients before and after cyclosporin (CsA) treatment. Meanwhile, hypocellular myelodysplastic syndrome (h-MDS) patients and the healthy volunteers were compared as controls. 15 AA patients, 11 h-MDS patients and 20 age and sex matched health controls were enrolled. All the AA patients were diagnosed to be non-severe aplastic anemia with transfusion dependency and were treated by CsA 3-5 mg/kg/d for at least 6 months. AA patients had decreased arachidonic acid pathway metabolites and retinol metabolism-related metabolites as compared with h-MDS and the health (P < 0.05), whereas h-MDS patients had increased metabolism of proline and threonine and abnormal sphingolipid metabolism compared with AA patients and the normal controls. After 6 month of CsA treatment, serum arachidonic acid, PGE2, PGJ2, 15(S)-HETE, leukotriene B4 and Protectin D1 decreased significantly. Patients who had response to CsA had higher levels of baseline protectin D1 (P = 0.011), leukotriene B4 (P = 0.011), 15(S)-HETE (P = 0.004) and all-trans-retinal (P = 0.000) than those who had no response.

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