1
|
Krabbendam L, Heesters BA, Kradolfer CMA, Haverkate NJE, Becker MAJ, Buskens CJ, Bemelman WA, Bernink JH, Spits H. CD127+ CD94+ innate lymphoid cells expressing granulysin and perforin are expanded in patients with Crohn's disease. Nat Commun 2021; 12:5841. [PMID: 34615883 PMCID: PMC8494908 DOI: 10.1038/s41467-021-26187-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 09/17/2021] [Indexed: 12/24/2022] Open
Abstract
Phenotypic definition of helper ILC1 and NK cells is problematic due to overlapping markers. Recently we showed the identification of cytotoxic ILC3s characterized by expression of CD94. Here we analyse CD127+ ILCs and NK cells in intestinal lamina propria from healthy donors and Crohn's disease patients and identify two populations of CD127+CD94+ ILCs, designated population A and B, that can be distinguished on the expression of CD117, CD18 and cytotoxic molecules. Population B expresses granulysin, a cytotoxic molecule linked to bacterial lysis and/or chemotaxis of monocytes. Granulysin protein is secreted by population B cells upon stimulation with IL-15. Activation of population B in the presence of TGF-β strongly reduces the expression of cytotoxic effector molecules of population B. Strikingly, samples from individuals that suffer from active Crohn's disease display enhanced frequencies of granulysin-expressing effector CD127+CD94+ ILCs in comparison to controls. Thus this study identifies group 1 ILC populations which accumulate in inflamed intestinal tissue of Crohn's disease patients and may play a role in the pathology of the disease.
Collapse
Affiliation(s)
- L Krabbendam
- Amsterdam UMC, University of Amsterdam, Department of Experimental Immunology, Amsterdam Infection & Immunity Institute (AI&II), Cancer Center Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, Netherlands
| | - B A Heesters
- Amsterdam UMC, University of Amsterdam, Department of Experimental Immunology, Amsterdam Infection & Immunity Institute (AI&II), Cancer Center Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
| | - C M A Kradolfer
- Amsterdam UMC, University of Amsterdam, Department of Experimental Immunology, Amsterdam Infection & Immunity Institute (AI&II), Cancer Center Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - N J E Haverkate
- Amsterdam UMC, University of Amsterdam, Department of Experimental Immunology, Amsterdam Infection & Immunity Institute (AI&II), Cancer Center Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - M A J Becker
- Tytgat Institute for Liver and Intestinal Research and Department of Gastroenterology & Hepatology, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - C J Buskens
- Amsterdam UMC, University of Amsterdam, Department of Experimental Immunology, Amsterdam Infection & Immunity Institute (AI&II), Cancer Center Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Gastroenterology & Metabolism (AG&M), Meibergdreef 9, Amsterdam, The Netherlands
| | - W A Bemelman
- Amsterdam UMC, University of Amsterdam, Department of Experimental Immunology, Amsterdam Infection & Immunity Institute (AI&II), Cancer Center Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
- Amsterdam UMC, University of Amsterdam, Department of Surgery, Amsterdam Gastroenterology & Metabolism (AG&M), Meibergdreef 9, Amsterdam, The Netherlands
| | - J H Bernink
- Amsterdam UMC, University of Amsterdam, Department of Experimental Immunology, Amsterdam Infection & Immunity Institute (AI&II), Cancer Center Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and UMC Utrecht, 3584, CT, Utrecht, The Netherlands
| | - H Spits
- Amsterdam UMC, University of Amsterdam, Department of Experimental Immunology, Amsterdam Infection & Immunity Institute (AI&II), Cancer Center Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands.
| |
Collapse
|