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Caulier A, Jankovsky N, Gautier EF, El Nemer W, Guitton C, Ouled-Haddou H, Guillonneau F, Mayeux P, Salnot V, Bruce J, Picard V, Garçon L. Red blood cell proteomics reveal remnant protein biosynthesis and folding pathways in PIEZO1-related hereditary xerocytosis. Front Physiol 2022; 13:960291. [PMID: 36531183 PMCID: PMC9751340 DOI: 10.3389/fphys.2022.960291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 10/21/2022] [Indexed: 11/25/2023] Open
Abstract
Hereditary xerocytosis is a dominant red cell membrane disorder characterized by an increased leak of potassium from the inside to outside the red blood cell membrane, associated with loss of water leading to red cell dehydration and chronic hemolysis. 90% of cases are related to heterozygous gain of function mutations in PIEZO1, encoding a mechanotransductor that translates a mechanical stimulus into a biological signaling. Data are still required to understand better PIEZO1-HX pathophysiology. Recent studies identified proteomics as an accurate and high-input tool to study erythroid progenitors and circulating red cell physiology. Here, we isolated red blood cells from 5 controls and 5 HX patients carrying an identified and pathogenic PIEZO1 mutation and performed a comparative deep proteomic analysis. A total of 603 proteins were identified among which 56 were differentially expressed (40 over expressed and 16 under expressed) between controls and HX with a homogenous expression profile within each group. We observed relevant modifications in the protein expression profile related to PIEZO1 mutations, identifying two main "knots". The first contained both proteins of the chaperonin containing TCP1 complex involved in the assembly of unfolded proteins, and proteins involved in translation. The second contained proteins involved in ubiquitination. Deregulation of proteins involved in protein biosynthesis was also observed in in vitro-produced reticulocytes after Yoda1 exposure. Thus, our work identifies significant changes in the protein content of PIEZO1-HX erythrocytes, revealing a "PIEZO1 signature" and identifying potentially targetable pathways in this disease characterized by a heterogeneous clinical expression and contra-indication of splenectomy.
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Affiliation(s)
- Alexis Caulier
- HEMATIM, CURS, Amiens and Laboratoire d’Hématologie, CHU Amiens, UPJV, Amiens, France
| | - Nicolas Jankovsky
- HEMATIM, CURS, Amiens and Laboratoire d’Hématologie, CHU Amiens, UPJV, Amiens, France
| | - Emilie Fleur Gautier
- 3P5 Proteom’IC, Institut Cochin, INSERM, CNRS, Université Paris Cité, Paris, France
- Institut Imagine-INSERM U1163, Necker Hospital, University of Paris, Paris, France
- Laboratoire d’excellence GR-Ex, Paris, France
| | | | - Corinne Guitton
- Laboratoire d’Hématologie et Filière MCGRE, CHU Bicêtre, Le Kremlin-Bicêtre, France
| | - Hakim Ouled-Haddou
- HEMATIM, CURS, Amiens and Laboratoire d’Hématologie, CHU Amiens, UPJV, Amiens, France
| | - François Guillonneau
- 3P5 Proteom’IC, Institut Cochin, INSERM, CNRS, Université Paris Cité, Paris, France
| | - Patrick Mayeux
- 3P5 Proteom’IC, Institut Cochin, INSERM, CNRS, Université Paris Cité, Paris, France
| | - Virginie Salnot
- 3P5 Proteom’IC, Institut Cochin, INSERM, CNRS, Université Paris Cité, Paris, France
| | - Johanna Bruce
- 3P5 Proteom’IC, Institut Cochin, INSERM, CNRS, Université Paris Cité, Paris, France
| | - Véronique Picard
- Laboratoire d’Hématologie et Filière MCGRE, CHU Bicêtre, Le Kremlin-Bicêtre, France
- Laboratoire d’Hématologie, Faculté de Pharmacie, Université Paris Saclay, Amiens, France
| | - Loïc Garçon
- HEMATIM, CURS, Amiens and Laboratoire d’Hématologie, CHU Amiens, UPJV, Amiens, France
- INSERM U1134, INTS, Paris, France
- Laboratoire d’Hématologie et Filière MCGRE, CHU Bicêtre, Le Kremlin-Bicêtre, France
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