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Flouda S, Moysidou GS, Damoulari C, Kapsala N, Kosmetatou M, Antoniadou A, Boumpas D, Katsimpri P. Familial Mediterranean Fever Mimicking Whipple's Disease: A Case Report and Review of the Literature. Mediterr J Rheumatol 2022; 33:252-255. [PMID: 36128209 PMCID: PMC9450193 DOI: 10.31138/mjr.33.2.252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 06/30/2021] [Indexed: 11/24/2022] Open
Affiliation(s)
- Sofia Flouda
- 4th Department of Internal Medicine, Attikon University General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
- Biomedical Research Foundation Academy of Athens
| | - Georgia-Savvina Moysidou
- 4th Department of Internal Medicine, Attikon University General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Christina Damoulari
- 4th Department of Internal Medicine, Attikon University General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Noemin Kapsala
- 4th Department of Internal Medicine, Attikon University General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
- Biomedical Research Foundation Academy of Athens
| | - Maria Kosmetatou
- 4th Department of Internal Medicine, Attikon University General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Anastasia Antoniadou
- 4th Department of Internal Medicine, Attikon University General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Dimitros Boumpas
- 4th Department of Internal Medicine, Attikon University General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
- Biomedical Research Foundation Academy of Athens
| | - Pelagia Katsimpri
- 4th Department of Internal Medicine, Attikon University General Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
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Ayona D, Zarza SM, Landemarre L, Roubinet B, Decloquement P, Raoult D, Fournier PE, Desnues B. Human galectin-1 and galectin-3 promote Tropheryma whipplei infection. Gut Microbes 2022; 13:1-15. [PMID: 33573443 PMCID: PMC7889132 DOI: 10.1080/19490976.2021.1884515] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Tropheryma whipplei, is an actinobacterium that causes different infections in humans, including Whipple's disease. The bacterium infects and replicates in macrophages, leading to a Th2-biased immune response. Previous studies have shown that T. whipplei harbors complex surface glycoproteins with evidence of sialylation. However, the exact contribution of these glycoproteins for infection and survival remains obscure. To address this, we characterized the bacterial glycoprofile and evaluated the involvement of human β-galactoside-binding lectins, Galectin-1 (Gal-1) and Galectin-3 (Gal-3) which are highly expressed by macrophages as receptors for bacterial glycans. Tropheryma whipplei glycoproteins harbor different sugars including glucose, mannose, fucose, β-galactose and sialic acid. Mass spectrometry identification revealed that these glycoproteins were membrane- and virulence-associated glycoproteins. Most of these glycoproteins are highly sialylated and N-glycosylated while some of them are rich in poly-N-acetyllactosamine (Poly-LAcNAc) and bind Gal-1 and Gal-3. In vitro, T. whipplei modulates the expression and cellular distribution of Gal-1 and Gal-3. Although both galectins promote T. whipplei infection by enhancing bacterial cell entry, only Gal-3 is required for optimal bacterial uptake. Finally, we found that serum levels of Gal-1 and Gal-3 were altered in patients with T. whipplei infections as compared to healthy individuals, suggesting that galectins are also involved in vivo. Among T. whipplei membrane-associated proteins, poly-LacNAc rich-glycoproteins promote infection through interaction with galectins. T. whipplei modulates the expression of Gal-1 and Gal-3 both in vitro and in vivo. Drugs interfering with galectin-glycan interactions may provide new avenues for the treatment and diagnosis of T. whipplei infections.
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Affiliation(s)
- Diyoly Ayona
- Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France,IHU-Méditerranée Infection, Marseille, France
| | - Sandra Madariaga Zarza
- Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France,IHU-Méditerranée Infection, Marseille, France
| | | | - Benoît Roubinet
- Glycodiag, Rue De Chartres, BP6759, 45067, Orléans cedex 2, France
| | - Philippe Decloquement
- Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France,IHU-Méditerranée Infection, Marseille, France
| | - Didier Raoult
- Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France,IHU-Méditerranée Infection, Marseille, France
| | - Pierre-Edouard Fournier
- IHU-Méditerranée Infection, Marseille, France,Aix Marseille Univ, IRD, APHM, VITROME, Marseille, France,Pierre-Edouard Fournier Aix Marseille Univ, VITROME, IHU - Méditerranée Infection, 19-21 Boulevard Jean Moulin, 13005Marseille, France
| | - Benoit Desnues
- Aix Marseille Univ, IRD, APHM, MEPHI, Marseille, France,IHU-Méditerranée Infection, Marseille, France,CONTACT Benoit Desnues MEPHI, IHU - Méditerranée Infection, Aix Marseille Univ, 19-21 Boulevard Jean Moulin, 13005, Marseille, France
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