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Li Y, Wang W, Liu Y, Li S, Wang J, Hou L. Diminished Immune Response and Elevated Abundance in Gut Microbe Dubosiella in Mouse Models of Chronic Colitis with GBP5 Deficiency. Biomolecules 2024; 14:873. [PMID: 39062588 PMCID: PMC11274912 DOI: 10.3390/biom14070873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2024] [Accepted: 07/19/2024] [Indexed: 07/28/2024] Open
Abstract
Guanylate binding protein 5 (GBP5) is an emerging immune component that has been increasingly recognized for its involvement in autoimmune diseases, particularly inflammatory bowel disease (IBD). IBD is a complex disease involving inflammation of the gastrointestinal tract. Here, we explored the functional significance of GBP5 using Gbp5 knockout mice and wildtype mice exposed to dextran sulfate sodium (DSS) to generate chronic colitis model. We found that Gbp5 deficiency protected mice from DSS-induced chronic colitis. Transcriptome analysis of colon tissues showed reduced immune responses in Gbp5 knockout mice compared to those in corresponding wildtype mice. We further observed that after repeated DSS exposure, the gut microbiota was altered, both in wildtype mice and Gbp5 knockout mice; however, the gut microbiome health index was higher in the Gbp5 knockout mice. Notably, a probiotic murine commensal bacterium, Dubosiella, was predominantly enriched in these knockout mice. Our findings suggest that GBP5 plays an important role in promoting inflammation and dysbiosis in the intestine, the prevention of which might therefore be worth exploring in regards to IBD treatment.
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Affiliation(s)
- Yichen Li
- Medical College, Jiaying University, Meizhou 514031, China
- Department of Immunology and Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China;
- Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Biomedical Innovation Center, Department of General Surgery, The Six Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
| | - Wenxia Wang
- Department of Immunology and Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China;
- Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Biomedical Innovation Center, Department of General Surgery, The Six Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
| | - Yuxuan Liu
- School of Medicine, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (Y.L.); (S.L.); (J.W.)
| | - Senru Li
- School of Medicine, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (Y.L.); (S.L.); (J.W.)
| | - Jingyu Wang
- School of Medicine, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (Y.L.); (S.L.); (J.W.)
| | - Linlin Hou
- School of Medicine, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (Y.L.); (S.L.); (J.W.)
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Wang L, Geng H, Liu Y, Liu L, Chen Y, Wu F, Liu Z, Ling S, Wang Y, Zhou L. Hot and cold tumors: Immunological features and the therapeutic strategies. MedComm (Beijing) 2023; 4:e343. [PMID: 37638340 PMCID: PMC10458686 DOI: 10.1002/mco2.343] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 07/16/2023] [Accepted: 07/18/2023] [Indexed: 08/29/2023] Open
Abstract
The "hotness" or "coldness" of the tumors are determined by the information of the cancer cells themselves, tumor immune characteristics, tumor microenvironment, and signaling mechanisms, which are key factors affecting cancer patients' clinical efficacy. The switch mechanism of "hotness" and "coldness" and its corresponding pathological characteristics and treatment strategies are the frontier and hot spot of tumor treatment. How to distinguish the "hotness" or "coldness" effectively and clarify the causes, microenvironment state, and characteristics are very important for the tumor response and efficacy treatments. Starting from the concept of hot and cold tumor, this review systematically summarized the molecular characteristics, influencing factors, and therapeutic strategies of "hot and cold tumors," and analyzed the immunophenotypes, the tumor microenvironment, the signaling pathways, and the molecular markers that contribute to "hot and cold tumors" in details. Different therapeutic strategies for "cold and hot tumors" based on clinical efficacy were analyzed with drug targets and proteins for "cold and hot tumors." Furthermore, this review combines the therapeutic strategies of different "hot and cold tumors" with traditional medicine and modern medicine, to provide a basis and guidance for clinical decision-making of cancer treatment.
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Affiliation(s)
- Lianjie Wang
- Department of Medical Oncology and Cancer InstituteShuguang HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Hui Geng
- Department of Internal MedicineShanghai International Medical CenterShanghaiChina
| | - Yujie Liu
- Department of NephrologyShuguang HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Lei Liu
- Department of Medical Oncology and Cancer InstituteShuguang HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Yanhua Chen
- Department of the Tumor Research Center, Academy of Integrative MedicineShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Fanchen Wu
- Department of Medical Oncology and Cancer InstituteShuguang HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Zhiyi Liu
- Department of Medical Oncology and Cancer InstituteShuguang HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Shiliang Ling
- Department of Medical OncologyNingbo Hospital of Traditional Chinese Medicine, Zhejiang ProvinceNingboChina
| | - Yan Wang
- Department of Medical Oncology and Cancer InstituteShuguang HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Lihong Zhou
- Department of Medical Oncology and Cancer InstituteShuguang HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
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Britzen-Laurent N, Weidinger C, Stürzl M. Contribution of Blood Vessel Activation, Remodeling and Barrier Function to Inflammatory Bowel Diseases. Int J Mol Sci 2023; 24:ijms24065517. [PMID: 36982601 PMCID: PMC10051397 DOI: 10.3390/ijms24065517] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/09/2023] [Accepted: 03/10/2023] [Indexed: 03/17/2023] Open
Abstract
Inflammatory bowel diseases (IBDs) consist of a group of chronic inflammatory disorders with a complex etiology, which represent a clinical challenge due to their often therapy-refractory nature. In IBD, inflammation of the intestinal mucosa is characterized by strong and sustained leukocyte infiltration, resulting in the loss of epithelial barrier function and subsequent tissue destruction. This is accompanied by the activation and the massive remodeling of mucosal micro-vessels. The role of the gut vasculature in the induction and perpetuation of mucosal inflammation is receiving increasing recognition. While the vascular barrier is considered to offer protection against bacterial translocation and sepsis after the breakdown of the epithelial barrier, endothelium activation and angiogenesis are thought to promote inflammation. The present review examines the respective pathological contributions of the different phenotypical changes observed in the microvascular endothelium during IBD, and provides an overview of potential vessel-specific targeted therapy options for the treatment of IBD.
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Affiliation(s)
- Nathalie Britzen-Laurent
- Division of Surgical Research, Department of Surgery, Translational Research Center, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany
- Correspondence:
| | - Carl Weidinger
- Department of Gastroenterology, Infectious Diseases and Rheumatology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, 12203 Berlin, Germany
| | - Michael Stürzl
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany
- Division of Molecular and Experimental Surgery, Translational Research Center, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
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Chen H, Li G, Cui Y, Zhang Q, Li B, Liu X. High endothelial venules in intracranial germinomas: Implications for lymphocytes infiltration. Cancer Med 2023; 12:5450-5460. [PMID: 36259639 PMCID: PMC10028053 DOI: 10.1002/cam4.5367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 09/27/2022] [Accepted: 10/07/2022] [Indexed: 11/12/2022] Open
Abstract
PURPOSE Reactive lymphocytes are substantial components of germinoma, which are believed to be related to the favorable prognosis of this intracranial tumor and better response to immunotherapy. However, the mechanisms managing the recruitment of lymphocytes are poorly understood. High endothelial venules (HEVs) are specialized blood vessels that play key roles in lymphocyte trafficking in Lymph nodes. These vessels are associated with lymphocyte infiltration in chronic inflammatory diseases and various malignant tumors, but their distribution and implications in germinoma are unknown. This study aimed to investigate the distribution and implications of HEVs in intracranial germinomas. METHODS We investigated the presence and distribution of HEVs in 42 germinomas by immunohistochemical staining of peripheral node addressin (PNAd) and transmission electron microscopic examination. The correlation of the densities of HEVs with the extent of T and B lymphocyte infiltration and several clinicopathological characteristics were also analyzed to determine whether HEVs are responsible for lymphocyte recruitment and their roles in anti-tumor immunity in germinoma. RESULTS PNAd-positive HEVs were detected in 31% (13/42) of germinomas, and their presence correlated with abundant infiltrating CD3+ T cells, CD20 + B cells and CD8+ cytotoxic T lymphocytes (p = 0.0410, 0.0023, and 0.0061, respectively). Higher HEVs density was also correlated with several clinicopathological parameters, which are recognized indicators for favorable prognosis in germinomas, including typical tumor location (p = 0.0093), lower tumor cell content (p = 0.0428), and younger age at diagnosis (p = 0.0121). Furthermore, bioinformatics analysis showed HEVs-associated genes mainly enriched in immune-related Gene Ontology terms, including innate immune response, inflammatory response, and B cell receptor signaling pathway. The xCell analysis revealed that germinomas with higher HEVs enrichment scores had increased levels of the immune score, microenvironment score, dendritic cells, CD8+ central memory T-cells, CD4+ memory T-cells, and B-cells. CONCLUSIONS Our findings indicate that HEVs could contribute to lymphocyte recruitment in germinomas, thus may serve as a predictor of favorable prognosis and better response to immunotherapy in this intracranial tumor.
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Affiliation(s)
- Huiyuan Chen
- Department of Neuropathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, People's Republic of China
| | - Guilin Li
- Department of Neuropathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, People's Republic of China
| | - Yun Cui
- Department of Neuropathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, People's Republic of China
| | - Qi Zhang
- Department of Ultrastructure Pathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, People's Republic of China
| | - Bo Li
- Department of Radiation Oncology, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Xing Liu
- Department of Neuropathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing, People's Republic of China
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Hussain B, Kasinath V, Ashton-Rickardt GP, Clancy T, Uchimura K, Tsokos G, Abdi R. High endothelial venules as potential gateways for therapeutics. Trends Immunol 2022; 43:728-740. [PMID: 35931612 PMCID: PMC10804419 DOI: 10.1016/j.it.2022.07.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 07/05/2022] [Accepted: 07/08/2022] [Indexed: 01/22/2023]
Abstract
High endothelial venules (HEVs) are specialized blood vessels that support the migration of lymphocytes from the bloodstream into lymph nodes (LNs). They are also formed ectopically in mammalian organs affected by chronic inflammation and cancer. The recent arrival of immunotherapy at the forefront of many cancer treatment regimens could boost a crucial role for HEVs as gateways for the treatment of cancer. In this review, we describe the microanatomical and biochemical characteristics of HEVs, mechanisms of formation of newly made HEVs, immunotherapies potentially dependent on HEV-mediated T cell homing to tumors, and finally, how HEV-targeted therapies might be used as a complementary approach to potentially shape the therapeutic landscape for the treatment of cancer and immune-mediated diseases.
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Affiliation(s)
- Bilal Hussain
- Transplantation Research Center and Division of Renal Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Vivek Kasinath
- Transplantation Research Center and Division of Renal Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | | | - Thomas Clancy
- Division of Surgical Oncology, Brigham and Women's Hospital, Boston, MA, USA
| | - Kenji Uchimura
- University Lille, CNRS, UMR8576 - UGSF - Unite de Glycogiologie Structurale et Functionelle, 59000 Lille, France
| | - George Tsokos
- Division of Rheumatology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Reza Abdi
- Transplantation Research Center and Division of Renal Medicine, Brigham and Women's Hospital, Boston, MA, USA.
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Nikolakis D, de Voogd FAE, Pruijt MJ, Grootjans J, van de Sande MG, D’Haens GR. The Role of the Lymphatic System in the Pathogenesis and Treatment of Inflammatory Bowel Disease. Int J Mol Sci 2022; 23:ijms23031854. [PMID: 35163775 PMCID: PMC8836364 DOI: 10.3390/ijms23031854] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/26/2022] [Accepted: 02/01/2022] [Indexed: 02/04/2023] Open
Abstract
Although the number of therapeutic options for the treatment of inflammatory bowel disease (IBD) has increased in recent years, patients suffer from decreased quality of life due to non-response or loss of response to the currently available treatments. An increased understanding of the disease’s etiology could provide novel insights for treatment strategies in IBD. Lymphatic system components are generally linked to immune responses and presumably related to inflammatory diseases pathophysiology. This review aims to summarize findings on immune-mediated mechanisms in lymphoid tissues linked with IBD pathogenesis and (potential) novel treatments. Enhanced innate and adaptive immune responses were observed in mesenteric lymph nodes (MLNs) and other lymphoid structures, such as Peyer’s patches, in patients with IBD and in animal models. Furthermore, the phenomenon of lymphatic obstruction in the form of granulomas in MLNs and lymphatic vessels correlates with disease activity. There is also evidence that abnormalities in the lymphatic stromal components and lymph node microbiome are common in IBD and could be exploited therapeutically. Finally, novel agents targeting lymphocyte trafficking have been added to the treatment armamentarium in the field of IBD. Overall, gut-associated lymphoid tissue plays a key role in IBD immunopathogenesis, which could offer novel therapeutic targets.
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Affiliation(s)
- Dimitrios Nikolakis
- Department of Gastroenterology, Amsterdam Institute for Gastroenterology Endocrinology and Metabolism, Academic Medical Center, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (D.N.); (F.A.E.d.V.); (M.J.P.); (J.G.)
- Department of Rheumatology and Clinical Immunology, Amsterdam Rheumatology & Immunology Center (ARC), Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands;
- Department of Experimental Immunology, Amsterdam Institute for Infection & Immunity, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
- Onassis Foundation, 4 Aeschinou Street, 10558 Athens, Greece
| | - Floris A. E. de Voogd
- Department of Gastroenterology, Amsterdam Institute for Gastroenterology Endocrinology and Metabolism, Academic Medical Center, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (D.N.); (F.A.E.d.V.); (M.J.P.); (J.G.)
| | - Maarten J. Pruijt
- Department of Gastroenterology, Amsterdam Institute for Gastroenterology Endocrinology and Metabolism, Academic Medical Center, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (D.N.); (F.A.E.d.V.); (M.J.P.); (J.G.)
| | - Joep Grootjans
- Department of Gastroenterology, Amsterdam Institute for Gastroenterology Endocrinology and Metabolism, Academic Medical Center, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (D.N.); (F.A.E.d.V.); (M.J.P.); (J.G.)
| | - Marleen G. van de Sande
- Department of Rheumatology and Clinical Immunology, Amsterdam Rheumatology & Immunology Center (ARC), Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands;
- Department of Experimental Immunology, Amsterdam Institute for Infection & Immunity, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Geert R. D’Haens
- Department of Gastroenterology, Amsterdam Institute for Gastroenterology Endocrinology and Metabolism, Academic Medical Center, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands; (D.N.); (F.A.E.d.V.); (M.J.P.); (J.G.)
- Correspondence:
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Műzes G, Bohusné Barta B, Sipos F. Colitis and Colorectal Carcinogenesis: The Focus on Isolated Lymphoid Follicles. Biomedicines 2022; 10:biomedicines10020226. [PMID: 35203436 PMCID: PMC8869724 DOI: 10.3390/biomedicines10020226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/09/2022] [Accepted: 01/20/2022] [Indexed: 02/05/2023] Open
Abstract
Gut-associated lymphoid tissue is one of the most diverse and complex immune compartments in the human body. The subepithelial compartment of the gut consists of immune cells of innate and adaptive immunity, non-hematopoietic mesenchymal cells, and stem cells of different origins, and is organized into secondary (and even tertiary) lymphoid organs, such as Peyer's patches, cryptopatches, and isolated lymphoid follicles. The function of isolated lymphoid follicles is multifaceted; they play a role in the development and regeneration of the large intestine and the maintenance of (immune) homeostasis. Isolated lymphoid follicles are also extensively associated with the epithelium and its conventional and non-conventional immune cells; hence, they can also function as a starting point or maintainer of pathological processes such as inflammatory bowel diseases or colorectal carcinogenesis. These relationships can significantly affect both physiological and pathological processes of the intestines. We aim to provide an overview of the latest knowledge of isolated lymphoid follicles in colonic inflammation and colorectal carcinogenesis. Further studies of these lymphoid organs will likely lead to an extended understanding of how immune responses are initiated and controlled within the large intestine, along with the possibility of creating novel mucosal vaccinations and ways to treat inflammatory bowel disease or colorectal cancer.
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Affiliation(s)
| | | | - Ferenc Sipos
- Correspondence: ; Tel.: +36-20-478-0752; Fax: +36-1-266-0816
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Iwamuro M, Takahashi T, Watanabe N, Tanaka T, Inokuchi T, Hiraoka S, Otsuka F, Okada H. Enriched CD45RA -CD62L + central memory T and decreased CD3 +CD56 + natural killer T lymphocyte subsets in the rectum of ulcerative colitis patients. Int J Immunopathol Pharmacol 2022; 36:20587384211051982. [PMID: 35021918 PMCID: PMC8796091 DOI: 10.1177/20587384211051982] [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] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
OBJECTIVES To investigate the distinctive features of lymphocytes promoting inflammation in ulcerative colitis. METHODS We performed flow cytometric analysis of peripheral blood mononuclear cells (PBMCs) and colorectal mucosa lymphocytes in ulcerative colitis patients (n = 13) and control patients (n = 5). RESULTS CD62L+/CD3+CD4+ (35.7 ± 14.0% vs. 19.9 ± 6.4%) and CD62L+/CD3+CD4- cells (17.1 ± 17.4% vs. 2.4 ± 3.9%) were higher in the rectum of ulcerative colitis patients than in control patients. Subpopulation analysis revealed that CD45RA-CD62L+/CD3+CD4+, that is, central memory T cell fraction in CD4+ T cells, was significantly increased in the rectum of ulcerative colitis, compared to that in control patients (23.3 ± 10.5% vs. 8.2 ± 4.0%). Comparison of rectum and colon samples in ulcerative colitis patients indicated that CD56+/CD3+ was decreased in the rectum compared to that in the colon (11.3 ± 12.5% vs. 21.3 ± 16.5%). The ratio of CD56+/CD3+ was also decreased in the rectum of active ulcerative colitis patients compared to that in ulcerative colitis patients at the endoscopic remission stages (2.8 ± 1.7% vs. 18.5 ± 13.3%). CONCLUSION We demonstrated that CD62L+ T lymphocytes, particularly the CD45RA-CD62L+ T cell subset that represents central memory T cells, were increased in the rectum of patients with ulcerative colitis. In addition, the CD56+/CD3+ subset (natural killer T cells) was decreased in the rectum compared to that of less inflamed colonic mucosa. These results suggest that the enrichment of central memory T lymphocytes and the reduction of natural killer T cells in the gut mucosa are involved in the pathogenesis of ulcerative colitis.
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Affiliation(s)
- Masaya Iwamuro
- Department of Gastroenterology and Hepatology, 199491Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Takahide Takahashi
- Division of Medical Support, 92057Okayama University Hospital, Okayama, Japan
| | - Natsuki Watanabe
- Division of Medical Support, 92057Okayama University Hospital, Okayama, Japan
| | - Takehiro Tanaka
- Department of Pathology, 199491Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Toshihiro Inokuchi
- Department of Gastroenterology and Hepatology, 199491Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Sakiko Hiraoka
- Department of Gastroenterology and Hepatology, 199491Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Fumio Otsuka
- Department of General Medicine, 199491Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Hiroyuki Okada
- Department of Gastroenterology and Hepatology, 199491Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
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Constantin AM, Boşca AB, Melincovici CS, Mărginean MV, Jianu EM, Moldovan IM, Sufleţel RT, Djouini A, Şovrea AS, Şovrea AS. Short histological kaleidoscope - recent findings in histology. Part II. ROMANIAN JOURNAL OF MORPHOLOGY AND EMBRYOLOGY = REVUE ROUMAINE DE MORPHOLOGIE ET EMBRYOLOGIE 2022; 63:275-292. [PMID: 36374135 PMCID: PMC9801680 DOI: 10.47162/rjme.63.2.01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This article focuses on the latest histological knowledge in the field regarding the peripheral lymphoid system [mucosa-associated lymphoid tissue (MALT), bronchus-associated lymphoid tissue (BALT), gut-associated lymphoid tissue (GALT)], the thymus stroma, some of the various corpuscles of the human body (Hassall's corpuscles in thymus, arenaceous corpuscles in pineal gland, corpora amylacea in prostate and other locations) and Fañanas glial cells in the cerebellum.
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Affiliation(s)
- Anne-Marie Constantin
- Discipline of Histology, Department of Morphological Sciences, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Adina Bianca Boşca
- Discipline of Histology, Department of Morphological Sciences, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Carmen Stanca Melincovici
- Discipline of Histology, Department of Morphological Sciences, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Mariana Viorica Mărginean
- Discipline of Histology, Department of Morphological Sciences, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Elena Mihaela Jianu
- Discipline of Histology, Department of Morphological Sciences, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Ioana Maria Moldovan
- Discipline of Histology, Department of Morphological Sciences, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Rada Teodora Sufleţel
- Discipline of Histology, Department of Morphological Sciences, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Amina Djouini
- Ophthalmology Resident Physician, Victor Babeş University of Medicine and Pharmacy, Timişoara, Romania
| | - Alina Simona Şovrea
- Discipline of Histology, Department of Morphological Sciences, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
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Gerard CL, Delyon J, Wicky A, Homicsko K, Cuendet MA, Michielin O. Turning tumors from cold to inflamed to improve immunotherapy response. Cancer Treat Rev 2021; 101:102227. [PMID: 34656019 DOI: 10.1016/j.ctrv.2021.102227] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 05/13/2021] [Accepted: 05/15/2021] [Indexed: 12/30/2022]
Abstract
Immune checkpoint inhibitors have revolutionized the treatment landscape for a number of cancers over the last few decades. Nevertheless, a majority of patients still do not benefit from these treatments. Such patient-specific lack of response can be predicted, in part, from the immune phenotypes present in the tumor microenvironment. We provide a perspective on options to reprogram the tumors and their microenvironment to increase the therapeutic efficacy of immunotherapies and expand their efficacy against cold tumors. Additionally, we review data from current preclinical and clinical trials aimed at testing the different therapeutic options in monotherapy or preferably in combination with checkpoint inhibitors.
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Affiliation(s)
- C L Gerard
- Precision Oncology Center, Lausanne University Hospital (CHUV), Switzerland
| | - J Delyon
- Precision Oncology Center, Lausanne University Hospital (CHUV), Switzerland
| | - A Wicky
- Precision Oncology Center, Lausanne University Hospital (CHUV), Switzerland
| | - K Homicsko
- Precision Oncology Center, Lausanne University Hospital (CHUV), Switzerland; Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland
| | - Michel A Cuendet
- Precision Oncology Center, Lausanne University Hospital (CHUV), Switzerland; Molecular Modelling Group, Swiss Institute of Bioinformatics, Lausanne, Switzerland; Department of Physiology and Biophysics, Weill Cornell Medicine, NY, USA.
| | - O Michielin
- Precision Oncology Center, Lausanne University Hospital (CHUV), Switzerland; Molecular Modelling Group, Swiss Institute of Bioinformatics, Lausanne, Switzerland.
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11
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Human gut-associated lymphoid tissues (GALT); diversity, structure, and function. Mucosal Immunol 2021; 14:793-802. [PMID: 33753873 DOI: 10.1038/s41385-021-00389-4] [Citation(s) in RCA: 163] [Impact Index Per Article: 54.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 02/05/2021] [Accepted: 02/06/2021] [Indexed: 02/07/2023]
Abstract
Gut-associated lymphoid tissues (GALT) are the key antigen sampling and adaptive immune inductive sites within the intestinal wall. Human GALT includes the multi-follicular Peyer's patches of the ileum, the vermiform appendix, and the numerous isolated lymphoid follicles (ILF) which are distributed along the length of the intestine. Our current understanding of GALT diversity and function derives primarily from studies in mice, and the relevance of many of these findings to human GALT remains unclear. Here we review our current understanding of human GALT diversity, structure, and composition as well as their potential for regulating intestinal immune responses during homeostasis and inflammatory bowel disease (IBD). Finally, we outline some key remaining questions regarding human GALT, the answers to which will advance our understanding of intestinal immune responses and provide potential opportunities to improve the treatment of intestinal diseases.
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Blanchard L, Girard JP. High endothelial venules (HEVs) in immunity, inflammation and cancer. Angiogenesis 2021; 24:719-753. [PMID: 33956259 PMCID: PMC8487881 DOI: 10.1007/s10456-021-09792-8] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 04/19/2021] [Indexed: 12/16/2022]
Abstract
High endothelial venules (HEVs) are specialized blood vessels mediating lymphocyte trafficking to lymph nodes (LNs) and other secondary lymphoid organs. By supporting high levels of lymphocyte extravasation from the blood, HEVs play an essential role in lymphocyte recirculation and immune surveillance for foreign invaders (bacterial and viral infections) and alterations in the body’s own cells (neoantigens in cancer). The HEV network expands during inflammation in immune-stimulated LNs and is profoundly remodeled in metastatic and tumor-draining LNs. HEV-like blood vessels expressing high levels of the HEV-specific sulfated MECA-79 antigens are induced in non-lymphoid tissues at sites of chronic inflammation in many human inflammatory and allergic diseases, including rheumatoid arthritis, Crohn’s disease, allergic rhinitis and asthma. Such vessels are believed to contribute to the amplification and maintenance of chronic inflammation. MECA-79+ tumor-associated HEVs (TA-HEVs) are frequently found in human tumors in CD3+ T cell-rich areas or CD20+ B-cell rich tertiary lymphoid structures (TLSs). TA-HEVs have been proposed to play important roles in lymphocyte entry into tumors, a process essential for successful antitumor immunity and lymphocyte-mediated cancer immunotherapy with immune checkpoint inhibitors, vaccines or adoptive T cell therapy. In this review, we highlight the phenotype and function of HEVs in homeostatic, inflamed and tumor-draining lymph nodes, and those of HEV-like blood vessels in chronic inflammatory diseases. Furthermore, we discuss the role and regulation of TA-HEVs in human cancer and mouse tumor models.
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Affiliation(s)
- Lucas Blanchard
- Institut de Pharmacologie et de Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Jean-Philippe Girard
- Institut de Pharmacologie et de Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France.
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Roosenboom B, van Lochem EG, Meijer J, Smids C, Nierkens S, Brand EC, van Erp LW, Kemperman LG, Groenen MJ, Horjus Talabur Horje CS, Wahab PJ. Development of Mucosal PNAd + and MAdCAM-1 + Venules during Disease Course in Ulcerative Colitis. Cells 2020; 9:cells9040891. [PMID: 32268498 PMCID: PMC7226824 DOI: 10.3390/cells9040891] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 03/31/2020] [Accepted: 04/03/2020] [Indexed: 12/31/2022] Open
Abstract
PNAd and MAdCAM-1 addressins on venules are of importance in T-cell homing and potential therapeutic targets in ulcerative colitis (UC). Normally, PNAd+ high endothelial venules (HEVs) are only present in lymphoid organs, whereas small numbers of MAdCAM-1+ venules can be seen in non-lymphoid tissue. We aimed to study their presence in the intestinal mucosa of UC patients at diagnosis and during follow-up, and their correlation with disease activity. Colonic biopsy specimens of 378 UC patients were analyzed by immunohistochemistry for CD3, CD20, ERG, MECA-79 (PNAd) and MECA-376 (MAdCAM-1) and compared to healthy controls (HC). The proportion of PNAd+HEVs in UC at diagnosis was 4.9% (IQR 2.0%-8.3%), while none were detected in HC. During follow-up, PNAd+HEVs completely disappeared in remission (n = 93), whereas the proportion in active disease was similar to baseline (n = 285, p = 0.39). The proportion of MAdCAM-1+venules in UC at baseline was 5.8% (IQR 2.6-10.0). During follow-up, the proportion in remission was comparable to diagnosis, but upregulated (7.5% (IQR 4.4-10.9), p = 0.001) in active disease. In conclusion, PNAd+HEVs appear in UC during active inflammation which could thus serve as a marker for disease activity, whereas MAdCAM-1+venules remain present after inflammation is resolved and increase after subsequent flares, reflecting chronicity and potentially serving as a therapeutic target.
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Affiliation(s)
- Britt Roosenboom
- Crohn & Colitis Centre Rijnstate, Department of Gastroenterology and Hepatology, Rijnstate Hospital, 6815 AD Arnhem, The Netherlands
- Correspondence: ; Tel.: +3188-0058952; Fax: +3188-0057506
| | - Ellen G. van Lochem
- Department of Microbiology and Immunology, Rijnstate Hospital, 6815 AD Arnhem, The Netherlands
| | - Jos Meijer
- Department of Pathology, Rijnstate Hospital, 6815 AD Arnhem, The Netherlands
| | - Carolijn Smids
- Crohn & Colitis Centre Rijnstate, Department of Gastroenterology and Hepatology, Rijnstate Hospital, 6815 AD Arnhem, The Netherlands
| | - Stefan Nierkens
- U-DAIR and Center for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Eelco C. Brand
- Department of Gastroenterology and Hepatology and Center for Translational Immunology, University Medical Center Utrecht, 3584 CX, Utrecht, The Netherlands
| | - Liselot W. van Erp
- Crohn & Colitis Centre Rijnstate, Department of Gastroenterology and Hepatology, Rijnstate Hospital, 6815 AD Arnhem, The Netherlands
| | | | - Marcel J.M. Groenen
- Crohn & Colitis Centre Rijnstate, Department of Gastroenterology and Hepatology, Rijnstate Hospital, 6815 AD Arnhem, The Netherlands
| | - Carmen S. Horjus Talabur Horje
- Crohn & Colitis Centre Rijnstate, Department of Gastroenterology and Hepatology, Rijnstate Hospital, 6815 AD Arnhem, The Netherlands
| | - Peter J. Wahab
- Crohn & Colitis Centre Rijnstate, Department of Gastroenterology and Hepatology, Rijnstate Hospital, 6815 AD Arnhem, The Netherlands
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14
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Fenton TM, Jørgensen PB, Niss K, Rubin SJS, Mörbe UM, Riis LB, Da Silva C, Plumb A, Vandamme J, Jakobsen HL, Brunak S, Habtezion A, Nielsen OH, Johansson-Lindbom B, Agace WW. Immune Profiling of Human Gut-Associated Lymphoid Tissue Identifies a Role for Isolated Lymphoid Follicles in Priming of Region-Specific Immunity. Immunity 2020; 52:557-570.e6. [PMID: 32160523 PMCID: PMC7155934 DOI: 10.1016/j.immuni.2020.02.001] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 01/09/2020] [Accepted: 02/13/2020] [Indexed: 12/19/2022]
Abstract
The intestine contains some of the most diverse and complex immune compartments in the body. Here we describe a method for isolating human gut-associated lymphoid tissues (GALTs) that allows unprecedented profiling of the adaptive immune system in submucosal and mucosal isolated lymphoid follicles (SM-ILFs and M-ILFs, respectively) as well as in GALT-free intestinal lamina propria (LP). SM-ILF and M-ILF showed distinct patterns of distribution along the length of the intestine, were linked to the systemic circulation through MAdCAM-1+ high endothelial venules and efferent lymphatics, and had immune profiles consistent with immune-inductive sites. IgA sequencing analysis indicated that human ILFs are sites where intestinal adaptive immune responses are initiated in an anatomically restricted manner. Our findings position ILFs as key inductive hubs for regional immunity in the human intestine, and the methods presented will allow future assessment of these compartments in health and disease.
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Affiliation(s)
- Thomas M Fenton
- Mucosal Immunology Group, Department of Health Technology, Technical University of Denmark, Kemitorvet, 2800 Kgs. Lyngby, Denmark.
| | - Peter B Jørgensen
- Mucosal Immunology Group, Department of Health Technology, Technical University of Denmark, Kemitorvet, 2800 Kgs. Lyngby, Denmark
| | - Kristoffer Niss
- Translational Disease Systems Biology, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Samuel J S Rubin
- Department of Medicine, Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Urs M Mörbe
- Immunology Section, Lund University, BMC D14, 221-84 Lund, Sweden
| | - Lene B Riis
- Department of Pathology, Herlev Hospital, University of Copenhagen, 2730 Herlev, Denmark
| | - Clément Da Silva
- Immunology Section, Lund University, BMC D14, 221-84 Lund, Sweden
| | - Adam Plumb
- Immunological Memory Group, Department of Health Technology, Technical University of Denmark, Kemitorvet, 2800 Kgs. Lyngby, Denmark
| | - Julien Vandamme
- Mucosal Immunology Group, Department of Health Technology, Technical University of Denmark, Kemitorvet, 2800 Kgs. Lyngby, Denmark
| | - Henrik L Jakobsen
- Department of Gastroenterology, Surgical Section, Herlev Hospital, University of Copenhagen, 2730 Herlev, Denmark
| | - Søren Brunak
- Translational Disease Systems Biology, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Aida Habtezion
- Department of Medicine, Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Ole H Nielsen
- Department of Gastroenterology, Medical Section, Herlev Hospital, University of Copenhagen, 2730 Herlev, Denmark
| | - Bengt Johansson-Lindbom
- Immunology Section, Lund University, BMC D14, 221-84 Lund, Sweden; Immunological Memory Group, Department of Health Technology, Technical University of Denmark, Kemitorvet, 2800 Kgs. Lyngby, Denmark
| | - William W Agace
- Mucosal Immunology Group, Department of Health Technology, Technical University of Denmark, Kemitorvet, 2800 Kgs. Lyngby, Denmark; Immunology Section, Lund University, BMC D14, 221-84 Lund, Sweden.
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Pai N, Popov J, Hill L, Hartung E. Protocol for a double-blind, randomised, placebo-controlled pilot study for assessing the feasibility and efficacy of faecal microbiota transplant in a paediatric Crohn's disease population: PediCRaFT Trial. BMJ Open 2019; 9:e030120. [PMID: 31784432 PMCID: PMC6924772 DOI: 10.1136/bmjopen-2019-030120] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Crohn's disease (CD) is a chronic inflammatory condition with transmural involvement of the gastrointestinal tract. Extraintestinal manifestations are common, and the disease burden on patients and the healthcare system is significant. While treatment options have expanded in recent years, they have mainly focused on dampening the immune response, thus carrying notable risks associated with long-term immunosuppression. Faecal microbiota transplant (FMT) targets inflammatory bowel disease (IBD) by modifying intestinal dysbiosis. Limited adult and paediatric data have demonstrated a favourable response to FMT in IBD; however, no randomised controlled trial has yet been published in paediatrics. This double-blind, randomised, placebo-controlled pilot study will assess feasibility and efficacy outcomes of FMT in a paediatric CD population. METHODS AND ANALYSIS Forty-five patients between the ages of 3 and 17 years, with established CD or IBD unclassified, will be enrolled 2:1 to undergo FMT intervention or placebo control. Participants will undergo a colonoscopic infusion to the terminal ileum at baseline, followed by oral capsules two times per week for 6 weeks. Outcomes will be measured throughout the intervention period and 18 weeks of subsequent follow-up. Primary outcomes will assess feasibility, including patient recruitment, sample collection and rates of adverse events. Secondary outcomes will address clinical efficacy, including change in clinical response, change in urine metabolome and change in microbiome. ETHICS AND DISSEMINATION Ethics approval from the local hospital research ethics board was obtained at the primary site (McMaster Children's Hospital, Hamilton), with ethics pending at the secondary site (Centre Hospitalier Universitaire-Sainte-Justine, Montréal). RBX7455 and RBX2660 are human donor-sourced, microbiota-based therapeutic formulations. Both RBX7455 and RBX2660 are currently undergoing clinical trials to support potential US Food and Drug Administration approval. Approval to conduct this paediatric clinical trial was obtained from Health Canada's Biologics and Genetic Therapies Directorate. The results of this trial will be published in peer-reviewed journals and will help inform a large, multicentre trial in the future. TRIAL REGISTRATION NUMBER NCT03378167; pre-results.
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Affiliation(s)
- Nikhil Pai
- Pediatrics, Division of Pediatric Gastroenterology and Nutrition, McMaster University, Hamilton, Ontario, Canada
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Jelena Popov
- Pediatrics, Division of Pediatric Gastroenterology and Nutrition, McMaster University, Hamilton, Ontario, Canada
| | - Lee Hill
- Pediatrics, Division of Pediatric Gastroenterology and Nutrition, McMaster University, Hamilton, Ontario, Canada
| | - Emily Hartung
- Pediatrics, Division of Pediatric Gastroenterology and Nutrition, McMaster University, Hamilton, Ontario, Canada
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16
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Lin L, Hu X, Zhang H, Hu H. Tertiary Lymphoid Organs in Cancer Immunology: Mechanisms and the New Strategy for Immunotherapy. Front Immunol 2019; 10:1398. [PMID: 31281318 PMCID: PMC6596321 DOI: 10.3389/fimmu.2019.01398] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 06/03/2019] [Indexed: 02/05/2023] Open
Abstract
The immune system plays pivotal roles in the occurrence and progression of cancers. As blockade of immune-checkpoint has been proven effective at improving anti-tumor immune response in multiple tumor types, the tumor immunotherapy still faces many challenges. Emerging evidence indicates lymphoid organ-like structures, also called tertiary lymphoid organs (TLOs) or ectopic lymphoid organs (ELOs), have been identified in cancers, as the result of lymphoid neoorganogenesis. The prognostic value of TLOs in cancer patients has been evaluated with debates, however, such well-organized lymphoid structures in the site of cancer indicate TLOs are the important modulators of cancer immunological microenvironment. TLOs have attracted remarkable efforts to investigate their neoorganogenesis and function in immune responses, aiming to develop new strategies for cancer immunotherapy. In this review, we summarize the current understandings about the molecular and cellular mechanisms governing the formation and function of TLOs in immune responses against cancer.
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Affiliation(s)
- Liangbin Lin
- The State Key Laboratory of Biotherapy, Department of Rheumatology and Immunology, Collaboration and Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Xiang Hu
- The State Key Laboratory of Biotherapy, Department of Rheumatology and Immunology, Collaboration and Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Huiyuan Zhang
- The State Key Laboratory of Biotherapy, Department of Rheumatology and Immunology, Collaboration and Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Hongbo Hu
- The State Key Laboratory of Biotherapy, Department of Rheumatology and Immunology, Collaboration and Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
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17
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Smids C, Horjus Talabur Horje CS, Nierkens S, Drylewicz J, Groenen MJM, Wahab PJ, van Lochem EG. Candidate Serum Markers in Early Crohn's Disease: Predictors of Disease Course. J Crohns Colitis 2017; 11:1090-1100. [PMID: 28369318 DOI: 10.1093/ecco-jcc/jjx049] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 03/24/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIMS More than half of patients with Crohn's disease [CD] develop disease complications requiring aggressive medical therapy or surgery over time. However, predicting disease course and treatment response remains difficult. We therefore identified distinctive serum analytes associated with disease activity and course in newly diagnosed, untreated patients at presentation and during their follow-up. METHODS In a pilot study, a multiplex immunoassay analysis on 36 markers was performed on serum from 20 CD patients at the time of primary diagnosis following endoscopic evaluation. The 12 most potent markers associated with disease activity, phenotype and course were analysed in a consecutive cohort of 66 CD patients at diagnosis and follow-up [n = 39]. A healthy control group [n = 20] was included as a reference. RESULTS CD patients had higher baseline levels of sTNF-R2 [p = 0.001], sIL-2R [p = 0.0001], and MMP-1 [p = 0.001] compared with healthy controls. Serial measurements revealed that these three analytes dropped statistically significantly from baseline level during remission and were high during exacerbation. Great decline of sTNF-R1 levels was found during remission, with 6.7-fold lower levels than in healthy controls [p = 0.015]. Patients who did not respond to initial prednisone treatment had higher baseline levels of sTNF-R2 [p = 0.001]. Patients experiencing relapses during follow-up had lower baseline sTNF-R2 and VCAM levels compared with patients with long-lasting remission. CONCLUSIONS In a large cohort of newly diagnosed untreated CD patients, we identified candidate serum markers [sTNF-R1, sTNF-R2, sIL-2R, and MMP-1] associated with disease activity. Furthermore, sTNF-R2 was associated with prednisone response and, together with VCAM, with long-lasting remission.
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Affiliation(s)
- Carolijn Smids
- Crohn & Colitis Centre Rijnstate, Rijnstate Hospital, Arnhem, The Netherlands
| | | | - Stefan Nierkens
- U-DAIR and Laboratory of Translational Immunology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Julia Drylewicz
- Laboratory of Translational Immunology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Marcel J M Groenen
- Crohn & Colitis Centre Rijnstate, Rijnstate Hospital, Arnhem, The Netherlands
| | - Peter J Wahab
- Crohn & Colitis Centre Rijnstate, Rijnstate Hospital, Arnhem, The Netherlands
| | - Ellen G van Lochem
- Department of Microbiology and Immunology, Rijnstate Hospital, Arnhem, The Netherlands
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