Article (Scientific journals)
Obesity control by SHIP inhibition requires pan-paralog inhibition and an intact eosinophil compartment
Fernandes, S.; Srivastava, N.; Pedicone, C. et al.
2023In iScience
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Keywords :
obesity, phosphoinositide, 5-phosphatase, Ship1, Ship2, Inppl1, eosinophil; Inpp5D
Abstract :
[en] Here we extend the understanding of how chemical inhibition of SHIP paralogs controls obesity. We compare different classes of SHIP inhibitors and find that selective inhibitors of SHIP1 or SHIP2 are unable to prevent weight gain and body fat accumulation during increased caloric intake. Surprisingly, only pan-SHIP1/2 inhibitors (pan-SHIPi) prevent diet-induced obesity. We confirm that pan-SHIPi is essential by showing that dual treatment with SHIP1 and SHIP2 selective inhibitors reduced adiposity during excess caloric intake. Consistent with this, genetic inactivation of both SHIP paralogs in eosinophils or myeloid cells also reduces obesity and adiposity. In fact, pan-SHIPi requires an eosinophil compartment to prevent diet-induced adiposity, demonstrating that pan-SHIPi acts via an immune mechanism. We also find that pan-SHIPi increases ILC2 cell function in aged, obese mice to reduce their obesity. Finally, we show that pan-SHIPi also reduces hyperglycemia, but not via eosinophils, indicating a separate mechanism for glucose control.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Fernandes, S.
Srivastava, N.
Pedicone, C.
Sudan, R.
Luke, E. A.
Dungan, O. M.
Pacherille, A.
Meyer, S. T.
Dormann, S.
Schurmans, Stéphane  ;  Université de Liège - ULiège > GIGA > GIGA Molecular Biology of Diseases - Functional Genetics
Jacobsen, E.
Chisholm, J. D.
Kerr, W. G.
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Title :
Obesity control by SHIP inhibition requires pan-paralog inhibition and an intact eosinophil compartment
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Publisher :
Elsevier, Cambridge, United States - Massachusetts
Peer reviewed :
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since 11 February 2023


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