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Guler A, Hamurcu Z, Ulutabanca H, Cınar V, Nurdinov N, Erdem S, Ozpolat B. Flavopiridol Suppresses Cell Proliferation and Migration and Induces Apoptotic Cell Death by Inhibiting Oncogenic FOXM1 Signaling in IDH Wild-Type and IDH-Mutant GBM Cells. Mol Neurobiol 2024; 61:1061-1079. [PMID: 37676393 DOI: 10.1007/s12035-023-03609-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 08/22/2023] [Indexed: 09/08/2023]
Abstract
Glioblastoma multiforme (GBM) remains one of the most challenging solid cancers to treat due to its highly aggressive and drug-resistant nature. Flavopiridol is synthetic flavone that was recently approved by the FDA for the treatment of acute myeloid leukemia. Flavopiridol exhibits antiproliferative activity in several solid cancer cells and currently evaluated in clinical trials in several solid and hematological cancers. In this study, we investigated the molecular mechanisms underlying antiproliferative effects of flavopiridol in GBM cell lines with wild-type and mutant encoding isocitrate dehydrogenase 1 (IDH1). We found that flavopiridol inhibits proliferation, colony formation, and migration and induces apoptosis in IDH1 wild-type and IDH-mutant cells through inhibition of FOXM1 oncogenic signaling. Furthermore, flavopiridol treatment also inhibits of NF-KB, mediators unfolded protein response (UPR), including, GRP78, PERK and IRE1α, and DNA repair enzyme PARP, which have been shown to be potential therapeutic targets by downregulating FOXM1 in GBM cells. Our findings suggest for the first time that flavopiridol suppresses proliferation, survival, and migration and induces apoptosis in IDH1 wild-type and IDH1-mutant GBM cells by targeting FOXM1 oncogenic signaling which also regulates NF-KB, PARP, and UPR response in GBM cells. Flavopiridol may be a potential novel therapeutic strategy in the treatment of patients IDH1 wild-type and IDH1-mutant GBM.
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Affiliation(s)
- Ahsen Guler
- Department of Medical Biology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
- Betül-Ziya Eren Genome and Stem Cell Center, Erciyes University, Kayseri, Turkey
| | - Zuhal Hamurcu
- Department of Medical Biology, Faculty of Medicine, Erciyes University, Kayseri, Turkey.
- Betül-Ziya Eren Genome and Stem Cell Center, Erciyes University, Kayseri, Turkey.
| | - Halil Ulutabanca
- Betül-Ziya Eren Genome and Stem Cell Center, Erciyes University, Kayseri, Turkey
- Department of Neurosurgery, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Venhar Cınar
- Department of Medical Biology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
- Betül-Ziya Eren Genome and Stem Cell Center, Erciyes University, Kayseri, Turkey
| | - Nursultan Nurdinov
- Betül-Ziya Eren Genome and Stem Cell Center, Erciyes University, Kayseri, Turkey
- Faculties of Medicine and Dentistry, Ahmet Yesevi University, Turkestan, Kazakhstan
| | - Serife Erdem
- Department of Medical Biology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
- Betül-Ziya Eren Genome and Stem Cell Center, Erciyes University, Kayseri, Turkey
| | - Bulent Ozpolat
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA.
- Methodist Neil Cancer Center, Houston, TX, USA.
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Lanz AL, Erdem S, Ozcan A, Ceylaner G, Cansever M, Ceylaner S, Conca R, Magg T, Acuto O, Latour S, Klein C, Patiroglu T, Unal E, Eken A, Hauck F. Correction to: A Novel Biallelic LCK Variant Resulting in Profound T-Cell Immune Deficiency and Review of the Literature. J Clin Immunol 2024; 44:41. [PMID: 38225415 PMCID: PMC10789877 DOI: 10.1007/s10875-024-01654-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Affiliation(s)
- Anna-Lisa Lanz
- Division of Pediatric Immunology and Rheumatology, Department of Pediatrics, Dr. Von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Serife Erdem
- Faculty of Medicine, Department of Medical Biology, Erciyes University, 38030, Kayseri, Turkey
- Molecular Biology and Genetics Department, Gevher Nesibe Genome and Stem Cell Institute, Betul-Ziya Eren Genome and Stem Cell Center (GENKOK), Erciyes University, Kayseri, Turkey
| | - Alper Ozcan
- Molecular Biology and Genetics Department, Gevher Nesibe Genome and Stem Cell Institute, Betul-Ziya Eren Genome and Stem Cell Center (GENKOK), Erciyes University, Kayseri, Turkey
| | | | - Murat Cansever
- Faculty of Medicine, Department of Pediatrics, Division of Pediatric Hematology & Oncology, Erciyes University, Kayseri, Turkey
| | | | - Raffaele Conca
- Division of Pediatric Immunology and Rheumatology, Department of Pediatrics, Dr. Von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Thomas Magg
- Division of Pediatric Immunology and Rheumatology, Department of Pediatrics, Dr. Von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Oreste Acuto
- T Cell Signalling Laboratory, Sir William Dunn School of Pathology, Oxford University, Oxford, OX2 3RE, UK
| | - Sylvain Latour
- Laboratory of Lymphocyte Activation and Susceptibility to EBV Infection, INSERM UMR1163, Paris, France
| | - Christoph Klein
- Division of Pediatric Immunology and Rheumatology, Department of Pediatrics, Dr. Von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Turkan Patiroglu
- Faculty of Medicine, Department of Pediatrics, Division of Pediatric Hematology & Oncology, Erciyes University, Kayseri, Turkey
| | - Ekrem Unal
- Molecular Biology and Genetics Department, Gevher Nesibe Genome and Stem Cell Institute, Betul-Ziya Eren Genome and Stem Cell Center (GENKOK), Erciyes University, Kayseri, Turkey
- Intergen, Ankara, Turkey
- Faculty of Health Sciences, Hasan Kalyoncu University, Medical Point Hospital, Gaziantep, Turkey
| | - Ahmet Eken
- Faculty of Medicine, Department of Medical Biology, Erciyes University, 38030, Kayseri, Turkey.
- Molecular Biology and Genetics Department, Gevher Nesibe Genome and Stem Cell Institute, Betul-Ziya Eren Genome and Stem Cell Center (GENKOK), Erciyes University, Kayseri, Turkey.
| | - Fabian Hauck
- Division of Pediatric Immunology and Rheumatology, Department of Pediatrics, Dr. Von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany.
- Munich Centre for Rare Diseases (M-ZSELMU), University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany.
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Lanz AL, Erdem S, Ozcan A, Ceylaner G, Cansever M, Ceylaner S, Conca R, Magg T, Acuto O, Latour S, Klein C, Patiroglu T, Unal E, Eken A, Hauck F. A Novel Biallelic LCK Variant Resulting in Profound T-Cell Immune Deficiency and Review of the Literature. J Clin Immunol 2023; 44:1. [PMID: 38100037 PMCID: PMC10724324 DOI: 10.1007/s10875-023-01602-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 10/06/2023] [Indexed: 12/18/2023]
Abstract
Lymphocyte-specific protein tyrosine kinase (LCK) is an SRC-family kinase critical for initiation and propagation of T-cell antigen receptor (TCR) signaling through phosphorylation of TCR-associated CD3 chains and recruited downstream molecules. Until now, only one case of profound T-cell immune deficiency with complete LCK deficiency [1] caused by a biallelic missense mutation (c.1022T>C, p.L341P) and three cases of incomplete LCK deficiency [2] caused by a biallelic splice site mutation (c.188-2A>G) have been described. Additionally, deregulated LCK expression has been associated with genetically undefined immune deficiencies and hematological malignancies. Here, we describe the second case of complete LCK deficiency in a 6-month-old girl born to consanguineous parents presenting with profound T-cell immune deficiency. Whole exome sequencing (WES) revealed a novel pathogenic biallelic missense mutation in LCK (c.1393T>C, p.C465R), which led to the absence of LCK protein expression and phosphorylation, and a consecutive decrease in proximal TCR signaling. Loss of conventional CD4+ and CD8+ αβT-cells and homeostatic T-cell expansion was accompanied by increased γδT-cell and Treg percentages. Surface CD4 and CD8 co-receptor expression was reduced in the patient T-cells, while the heterozygous mother had impaired CD4 and CD8 surface expression to a lesser extent. We conclude that complete LCK deficiency is characterized by profound T-cell immune deficiency, reduced CD4 and CD8 surface expression, and a characteristic TCR signaling disorder. CD4 and CD8 surface expression may be of value for early detection of mono- and/or biallelic LCK deficiency.
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Affiliation(s)
- Anna-Lisa Lanz
- Division of Pediatric Immunology and Rheumatology, Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität München, Lindwurmstrasse 4, 80337, Munich, Germany
| | - Serife Erdem
- Department of Medical Biology, Faculty of Medicine, Erciyes University, 38030, Kayseri, Turkey
- Molecular Biology and Genetics Department, Gevher Nesibe Genome and Stem Cell Institute, Betul-Ziya Eren Genome and Stem Cell Center (GENKOK), Erciyes University, Kayseri, Turkey
| | - Alper Ozcan
- Molecular Biology and Genetics Department, Gevher Nesibe Genome and Stem Cell Institute, Betul-Ziya Eren Genome and Stem Cell Center (GENKOK), Erciyes University, Kayseri, Turkey
| | | | - Murat Cansever
- Division of Pediatric Hematology & Oncology, Department of Pediatrics, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | | | - Raffaele Conca
- Division of Pediatric Immunology and Rheumatology, Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität München, Lindwurmstrasse 4, 80337, Munich, Germany
| | - Thomas Magg
- Division of Pediatric Immunology and Rheumatology, Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität München, Lindwurmstrasse 4, 80337, Munich, Germany
| | - Oreste Acuto
- T Cell Signalling Laboratory, Sir William Dunn School of Pathology, Oxford University, Oxford, OX2 3RE, UK
| | - Sylvain Latour
- Laboratory of Lymphocyte Activation and Susceptibility to EBV Infection, INSERM UMR1163, Paris, France
| | - Christoph Klein
- Division of Pediatric Immunology and Rheumatology, Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität München, Lindwurmstrasse 4, 80337, Munich, Germany
| | - Turkan Patiroglu
- Division of Pediatric Hematology & Oncology, Department of Pediatrics, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Ekrem Unal
- Molecular Biology and Genetics Department, Gevher Nesibe Genome and Stem Cell Institute, Betul-Ziya Eren Genome and Stem Cell Center (GENKOK), Erciyes University, Kayseri, Turkey
- Intergen, Ankara, Turkey
- Hasan Kalyoncu University, Faculty of Health Sciences, Medical Point Hospital, Gaziantep, Türkiye
| | - Ahmet Eken
- Department of Medical Biology, Faculty of Medicine, Erciyes University, 38030, Kayseri, Turkey.
- Molecular Biology and Genetics Department, Gevher Nesibe Genome and Stem Cell Institute, Betul-Ziya Eren Genome and Stem Cell Center (GENKOK), Erciyes University, Kayseri, Turkey.
| | - Fabian Hauck
- Division of Pediatric Immunology and Rheumatology, Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, Ludwig-Maximilians-Universität München, Lindwurmstrasse 4, 80337, Munich, Germany.
- Munich Centre for Rare Diseases (M-ZSELMU), University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany.
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Andras I, Pecoraro A, Telecan T, Piana A, Boissier R, Hevia V, Prudhomme T, Amparore D, Bertolo R, Carbonara U, Erdem S, Diana P, Ingels A, Kara O, Marandino L, Marchioni M, Muselaers S, Pavan N, Pecoraro A, Roussel E, Crisan N, Territo A, Campi R. How to manage renal masses in kidney transplant recipients? A collaborative review by the EAU-YAU kidney transplantation and renal cancer working groups. Actas Urol Esp 2023; 47:621-630. [PMID: 37100223 DOI: 10.1016/j.acuroe.2023.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 03/13/2023] [Indexed: 04/28/2023]
Abstract
INTRODUCTION Kidney transplant (KT) recipients have a four-times higher risk of renal malignancies compared to general population. As these patients frequently harbor bilateral or multifocal tumors, the management of renal masses is still under debate. OBJECTIVE To explore the current management of the native kidney masses in KT patients. ACQUISITION OF EVIDENCE We performed a literature search on MEDLINE/PubMed database. A number of 34 studies were included in the present review. SYNTHESIS OF EVIDENCE In frail patients with renal masses below 3 cm, active surveillance is a feasible alternative. Nephron-sparing surgery is not justified for masses in the native kidney. Radical nephrectomy is the standard treatment for post-transplant renal tumors of the native kidneys in KT recipients, with laparoscopic techniques leading to significantly less perioperative complication rates as compared to the open approach. Concurrent bilateral native nephrectomy at the time of transplantation can be considered in patients with renal mass and polycystic kidney disease, especially if no residual urinary output is present. Patients with localized disease and successful radical nephrectomy do not require immunosuppression adjustment. In metastatic cases, mTOR agents can ensure efficient antitumoral response, while maintaining proper immunosuppression in order to protect the graft. CONCLUSIONS Post-transplant renal cancer of the native kidneys is a frequent occurrence. Radical nephrectomy is most frequently performed for localized renal masses. A standardized and widely-approved screening strategy for malignancies of native renal units is yet to be implemented.
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Affiliation(s)
- I Andras
- Servicio de Urología, Universidad de Medicina y Farmacia «Iuliu Hatieganu», Hospital Municipal Cluj-Napoca, Cluj-Napoca, Romania.
| | - A Pecoraro
- Unidad de Cirugía Robótica Urológica y Trasplante Renal, Universidad de Florencia, Hospital de Careggi, Florencia, Italy; Grupo de Trasplante Renal de la sección de Jóvenes Urólogos Académicos (YAU) de la Asociación Europea de Urología (EAU), Arnhem, The Netherlands
| | - T Telecan
- Servicio de Urología, Universidad de Medicina y Farmacia «Iuliu Hatieganu», Hospital Municipal Cluj-Napoca, Cluj-Napoca, Romania
| | - A Piana
- Grupo de Trasplante Renal de la sección de Jóvenes Urólogos Académicos (YAU) de la Asociación Europea de Urología (EAU), Arnhem, The Netherlands; Sección de Urología, Servicio de Oncología, Facultad de Medicina, Hospital San Luigi, Universidad de Turín, Orbassano, Turín, Italy
| | - R Boissier
- Grupo de Trasplante Renal de la sección de Jóvenes Urólogos Académicos (YAU) de la Asociación Europea de Urología (EAU), Arnhem, The Netherlands; Servicio de Urología y Trasplante Renal, Hospital Universitario La Concepción, Marsella, France
| | - V Hevia
- Grupo de Trasplante Renal de la sección de Jóvenes Urólogos Académicos (YAU) de la Asociación Europea de Urología (EAU), Arnhem, The Netherlands; Servicio de Urología, Hospital Ramón y Cajal, IRYCIS, Universidad de Alcalá, Madrid, Spain
| | - T Prudhomme
- Grupo de Trasplante Renal de la sección de Jóvenes Urólogos Académicos (YAU) de la Asociación Europea de Urología (EAU), Arnhem, The Netherlands; Servicio de Urología, Trasplante Renal y Andrología, Hospital Universitario de Rangueil, Toulouse, France
| | - D Amparore
- Sección de Urología, Servicio de Oncología, Facultad de Medicina, Hospital San Luigi, Universidad de Turín, Orbassano, Turín, Italy; Grupo de trabajo de Cáncer Renal de la sección de Jóvenes Urólogos Académicos (YAU) de la Asociación Europea de Urología (EAU), Arnhem, The Netherlands
| | - R Bertolo
- Grupo de trabajo de Cáncer Renal de la sección de Jóvenes Urólogos Académicos (YAU) de la Asociación Europea de Urología (EAU), Arnhem, The Netherlands; Servicio de Urología, Hospital San Carlo Di Nancy, Roma, Italy
| | - U Carbonara
- Grupo de trabajo de Cáncer Renal de la sección de Jóvenes Urólogos Académicos (YAU) de la Asociación Europea de Urología (EAU), Arnhem, The Netherlands; Servicio de Emergencias y Trasplante de Órganos, Unidad de Urología, Andrología y Trasplante Renal, Universidad de Bari, Bari, Italy
| | - S Erdem
- Grupo de trabajo de Cáncer Renal de la sección de Jóvenes Urólogos Académicos (YAU) de la Asociación Europea de Urología (EAU), Arnhem, The Netherlands; Sección de Oncología Urológica, Servicio de Urología, Facultad de Medicina de la Universidad de Estambul, Estambul, Turkey
| | - P Diana
- Grupo de trabajo de Cáncer Renal de la sección de Jóvenes Urólogos Académicos (YAU) de la Asociación Europea de Urología (EAU), Arnhem, The Netherlands; Servicio de Urología, Instituto Clínico y de Investigación Humanitas ICCRS, Rozzano, Italy; Servicio de Urología, Fundació Puigvert, Universidad Autónoma de Barcelona, Barcelona, Spain
| | - A Ingels
- Grupo de trabajo de Cáncer Renal de la sección de Jóvenes Urólogos Académicos (YAU) de la Asociación Europea de Urología (EAU), Arnhem, The Netherlands; Servicio de Urología, APHP, Hospital Universitario Henri Mondor, Créteil, France
| | - O Kara
- Grupo de trabajo de Cáncer Renal de la sección de Jóvenes Urólogos Académicos (YAU) de la Asociación Europea de Urología (EAU), Arnhem, The Netherlands; Servicio de Urología, Hospital Universitario Henri Mondor, APHP, Créteil, France
| | - L Marandino
- Grupo de trabajo de Cáncer Renal de la sección de Jóvenes Urólogos Académicos (YAU) de la Asociación Europea de Urología (EAU), Arnhem, The Netherlands; Servicio de Oncología Médica, Hospital ICCRS San Raffaele, Universidad Vita-Salute San Raffaele, Milán, Italy
| | - M Marchioni
- Grupo de trabajo de Cáncer Renal de la sección de Jóvenes Urólogos Académicos (YAU) de la Asociación Europea de Urología (EAU), Arnhem, The Netherlands; Departamento de Ciencias Médicas, Orales y Biotecnológicas, Laboratorio de Biostadística, Universidad «G. D'Annunzio» Chieti-Pescara, Chieti, Italy; Servicio de Urología, Hospital SS Annunziata, Universidad «G. D'Annunzio» de Chieti, Chieti, Italy
| | - S Muselaers
- Grupo de trabajo de Cáncer Renal de la sección de Jóvenes Urólogos Académicos (YAU) de la Asociación Europea de Urología (EAU), Arnhem, The Netherlands; Servicio de Urología, Centro Médico de la Universidad de Radboud, Nimega, The Netherlands
| | - N Pavan
- Grupo de trabajo de Cáncer Renal de la sección de Jóvenes Urólogos Académicos (YAU) de la Asociación Europea de Urología (EAU), Arnhem, The Netherlands; Clínica de Urología, Departamento de Ciencias Médicas, Quirúrgicas y de la Salud, Universidad de Trieste, Trieste, Italy
| | - A Pecoraro
- Sección de Urología, Servicio de Oncología, Facultad de Medicina, Hospital San Luigi, Universidad de Turín, Orbassano, Turín, Italy; Grupo de trabajo de Cáncer Renal de la sección de Jóvenes Urólogos Académicos (YAU) de la Asociación Europea de Urología (EAU), Arnhem, The Netherlands
| | - E Roussel
- Grupo de trabajo de Cáncer Renal de la sección de Jóvenes Urólogos Académicos (YAU) de la Asociación Europea de Urología (EAU), Arnhem, The Netherlands; Servicio de Urología, Hospital Universitario de Lovaina, Lovaina, Belgium
| | - N Crisan
- Servicio de Urología, Universidad de Medicina y Farmacia «Iuliu Hatieganu», Hospital Municipal Cluj-Napoca, Cluj-Napoca, Romania
| | - A Territo
- Grupo de Trasplante Renal de la sección de Jóvenes Urólogos Académicos (YAU) de la Asociación Europea de Urología (EAU), Arnhem, The Netherlands; Servicio de Urología, Fundació Puigvert, Universidad Autónoma de Barcelona, Barcelona, Spain
| | - R Campi
- Unidad de Cirugía Robótica Urológica y Trasplante Renal, Universidad de Florencia, Hospital de Careggi, Florencia, Italy; Grupo de trabajo de Cáncer Renal de la sección de Jóvenes Urólogos Académicos (YAU) de la Asociación Europea de Urología (EAU), Arnhem, The Netherlands; Departamento de Medicina Experimental y Clínica, Universidad de Florencia, Florencia, Italy
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Erdem S, Haskologlu S, Haliloglu Y, Çelikzencir H, Arik E, Keskin O, Eltan SB, Yucel E, Canatan H, Avcilar H, Yilmaz E, Ozcan A, Unal E, Karakukcu M, Celiksoy MH, Kilic SS, Demir A, Genel F, Gulez N, Koker MY, Ozen AO, Baris S, Metin A, Guner SN, Reisli I, Keles S, Dogu EF, Ikinciogullari KA, Eken A. Defective Treg generation and increased type 3 immune response in leukocyte adhesion deficiency 1. Clin Immunol 2023:109691. [PMID: 37433423 DOI: 10.1016/j.clim.2023.109691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 03/13/2023] [Revised: 05/26/2023] [Accepted: 07/05/2023] [Indexed: 07/13/2023]
Abstract
In 15 Turkish LAD-1 patients and controls, we assessed the impact of pathogenic ITGB2 mutations on Th17/Treg differentiation and functions, and innate lymphoid cell (ILC) subsets. The percentage of peripheral blood Treg cells, in vitro-generated induced Tregs differentiated from naive CD4+ T cells were decreased despite the elevated absolute counts of CD4+ cells in LAD1 patients. Serum IL-23 levels were elevated in LAD1 patients. Post-curdlan stimulation, LAD1 patient-derived PBMCs produced more IL-17A. Additionally, the percentages of CD18-deficient Th17 cells expanded from total or naïve CD4+ T cells were higher. The blood ILC3 subset was significantly elevated in LAD1. Finally, LAD1 PBMCs showed defects in trans-well migration and proliferation and were more resistant to apoptosis. Defects in de novo generation of Tregs from CD18-deficient naïve T cells and elevated Th17s, and ILC3s in LAD1 patients' peripheral blood suggest a type 3-skewed immunity and may contribute to LAD1-associated autoimmune symptoms.
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Affiliation(s)
- Serife Erdem
- Erciyes University School of Medicine, Department of Medical Biology, Kayseri, Turkey; Erciyes University, Betul-Ziya Eren Genome and Stem Cell Center, Kayseri, Turkey
| | - Sule Haskologlu
- Ankara University School of Medicine, Department of Pediatric Allergy and Immunology, Ankara, Turkey
| | - Yesim Haliloglu
- Erciyes University School of Medicine, Department of Medical Biology, Kayseri, Turkey; Erciyes University, Betul-Ziya Eren Genome and Stem Cell Center, Kayseri, Turkey
| | - Huriye Çelikzencir
- Erciyes University School of Medicine, Department of Immunology, Kayseri, Turkey.
| | - Elif Arik
- Gaziantep University School of Medicine, Department of Pediatric Allergy and Immunology, Gaziantep, Turkey
| | - Ozlem Keskin
- Gaziantep University School of Medicine, Department of Pediatric Allergy and Immunology, Gaziantep, Turkey
| | - Sevgi Bilgic Eltan
- Marmara University School of Medicine, Department of Pediatric Allergy and Immunology, Istanbul, Turkey
| | - Esra Yucel
- Istanbul University School of Medicine, Department of Pediatric Allergy and Immunology, Istanbul, Turkey
| | - Halit Canatan
- Erciyes University School of Medicine, Department of Medical Biology, Kayseri, Turkey; Erciyes University, Betul-Ziya Eren Genome and Stem Cell Center, Kayseri, Turkey
| | - Huseyin Avcilar
- Erciyes University, Betul-Ziya Eren Genome and Stem Cell Center, Kayseri, Turkey
| | - Ebru Yilmaz
- Erciyes University School of Medicine, Department of Pediatric Hematology and Oncology, Kayseri, Turkey
| | - Alper Ozcan
- Erciyes University School of Medicine, Department of Pediatric Hematology and Oncology, Kayseri, Turkey
| | - Ekrem Unal
- Erciyes University, Betul-Ziya Eren Genome and Stem Cell Center, Kayseri, Turkey; Erciyes University School of Medicine, Department of Pediatric Hematology and Oncology, Kayseri, Turkey
| | - Musa Karakukcu
- Erciyes University School of Medicine, Department of Pediatric Hematology and Oncology, Kayseri, Turkey
| | - Mehmet Halil Celiksoy
- İstanbul Başakşehir Çam ve Sakura City Hospital, Pediatric Allergy and Immunology Clinic Istanbul, Turkey
| | - Sara Sebnem Kilic
- Bursa Uludag University, Department of Pediatric Immunology and Rheumatology, Bursa, Turkey.
| | - Ayca Demir
- Dr Behcet Uz Children's Education and Research Hospital, University of Health Sciences, Department of Pediatric Allergy and Immunology, Izmir, Turkey
| | - Ferah Genel
- Dr Behcet Uz Children's Education and Research Hospital, University of Health Sciences, Department of Pediatric Allergy and Immunology, Izmir, Turkey
| | - Nesrin Gulez
- Dr Behcet Uz Children's Education and Research Hospital, University of Health Sciences, Department of Pediatric Allergy and Immunology, Izmir, Turkey
| | - Mustafa Yavuz Koker
- Erciyes University School of Medicine, Department of Immunology, Kayseri, Turkey.
| | - Ahmet Oguzhan Ozen
- Marmara University School of Medicine, Department of Pediatric Allergy and Immunology, Istanbul, Turkey
| | - Safa Baris
- Marmara University School of Medicine, Department of Pediatric Allergy and Immunology, Istanbul, Turkey
| | - Ayse Metin
- Ankara City Hospital, Department of Pediatric Allergy and Immunology, Ankara, Turkey
| | - Sukru Nail Guner
- Necmettin Erbakan University School of Medicine, Department of Pediatric Allergy and Immunology, Konya, Turkey
| | - Ismail Reisli
- Necmettin Erbakan University School of Medicine, Department of Pediatric Allergy and Immunology, Konya, Turkey
| | - Sevgi Keles
- Necmettin Erbakan University School of Medicine, Department of Pediatric Allergy and Immunology, Konya, Turkey
| | - Esin Figen Dogu
- Ankara University School of Medicine, Department of Pediatric Allergy and Immunology, Ankara, Turkey
| | | | - Ahmet Eken
- Erciyes University School of Medicine, Department of Medical Biology, Kayseri, Turkey; Erciyes University, Betul-Ziya Eren Genome and Stem Cell Center, Kayseri, Turkey.
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6
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Andras I, Pecoraro A, Telecan T, Piana A, Boissier R, Hevia V, Prudhomme T, Amparore D, Bertolo R, Carbonara U, Erdem S, Diana P, Ingels A, Kara O, Marandino L, Marchioni M, Muselaers S, Pavan N, Pecoraro A, Roussel E, Crisan N, Territo A, Campi R. Manejo de masas renales en receptores de trasplante renal. Revisión colaborativa de los grupos de trabajo de trasplante renal y cancer renal de la sección de jóvenes urológos (yau) de la asociación europea de urología (EAU). Actas Urol Esp 2023. [DOI: 10.1016/j.acuro.2023.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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7
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Marchioni M, Primiceri G, Schips L, Campi R, Tafuri A, Autorino R, Minervini A, Kriegmair M, Rebez G, Erdem S, Paksoy N, Claps F, Pavan N, Roussel E, Albersen M, Antonelli A, Darweesh I, Meagher M, Linares E, Hevia V, Musquera M, D’Anna M, Mir M. Minimally invasive cytoreductive nephrectomy for metastatic renal cell carcinoma in the immunotherapy era: Results from the REMARC-IO database. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00378-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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8
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Campi R, Amparore D, Marandino L, Bertolo R, Erdem S, Ingels A, Muselaers S, Pavan N, Roussel E, Carbonara U, Pecoraro A, Diana P, Pecoraro A, Marchioni M. Is adjuvant immunotherapy worth for all patients with clear-cell renal cell carcinoma at high risk of recurrence? Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00520-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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9
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Primceri G, Marchioni M, Campi R, Tafuri A, Autorino R, Minervini A, Kriegmair M, Rebez G, Erdem S, Paksoy N, Claps F, Pavan N, Roussel E, Albersen M, Antonelli A, Darweesh I, Meagher M, Linares E, Hevia V, Musquera M, D’Anna M, De Palma A, Mir M, Schips L. Minimally invasive cytoreductive nephrectomy for metastatic renal cell carcinoma in the immunotherapy era: results from the remarc-io database. EUR UROL SUPPL 2022. [DOI: 10.1016/s2666-1683(22)01057-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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10
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Erdem S, Narayanan JS, Mohottige Don N, Worni M, White RR, Chen Y. Inhibition of SUMOylation modulates the immunosuppressive microenvironment of pancreatic cancer. Br J Surg 2022. [DOI: 10.1093/bjs/znac178.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Objective
Pancreatic cancer (PC) is a highly aggressive disease that is poorly responsive to available immunotherapy approaches, such as checkpoint inhibitors. Post-translational protein modification (PTM) by small ubiquitin-like modifier (SUMO) is upregulated in cancer, and high expression of SUMOylation-related factors correlates with poor survival in PC. TAK-981 is a novel inhibitor of SUMOylation that has demonstrated induction of anti-tumor immune responses in preclinical models. Our hypothesis is that TAK-981 will decrease SUMOylated proteins and subsequently modulate the tumor microenvironment to increase anti-tumor immunity.
Methods
In order to recapitulate the microenvironment of human PC, a 3-dimensional organoid cell line derived from a genetically-engineered “KPC” mouse was used. Organoids were injected orthotopically into the head of the pancreas via laparotomy. Once tumors reached 5–7 mm in diameter on ultrasound imaging, mice were randomized to one of two treatment groups: Control/Vehicle versus TAK-981 (15 mg/kg) delivered daily via intraperitoneal injection. Tumors were harvested on day 14 for gene expression analysis by quantitative real time PCR (RT-qPCR).
Results
Tumor growth (Fig. 1) in the TAK-981 15 mg/KG daily group (mean + SD volume = 207 + 109 mm3) was significantly inhibited compared to the vehicle group (595 + 141 mm3, p < 0.01). Immunohistochemical staining for CD 31 (Fig. 2) and Caspase 3 indicated a reduction of angiogenesis and increased apoptosis of tumor cells, consistent with the well-established roles of SUMOylation in angiogenesis and tumorigenesis. Gene expression analysis of tumor lysates showed a 26-fold increase in expression of Interferon beta (p<0.05), and an almost 2-fold increase in expression of genes related to dendritic cell activation, including CD80 (p<0.05) and CD86 (p=0.14) in the TAK-981 group, suggesting a modulation of the immune microenvironment.
Conclusion
Our results suggest that the inhibition of SUMOylation with TAK-981 is associated with improved local tumor control and changes in the immunosuppressive tumor microenvironment. We expect that TAK-981 will improve PC responsiveness to immunotherapy, such as with checkpoint inhibitors.
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Affiliation(s)
- S Erdem
- Moores Cancer Center, University of California San Diego (UCSD) , San Diego, USA
- Department of Visceral Surgery, Clarunis – University Abdominal Center , Basel, Switzerland
| | - J S Narayanan
- Moores Cancer Center, University of California San Diego (UCSD) , San Diego, USA
| | - N Mohottige Don
- Moores Cancer Center, University of California San Diego (UCSD) , San Diego, USA
| | - M Worni
- Department of Visceral Surgery, Hirslanden Hospital Beau-Site , Bern, Switzerland
- Department of Visceral Surgery, Clarunis – University Abdominal Center , Basel, Switzerland
| | - R R White
- Moores Cancer Center, University of California San Diego (UCSD) , San Diego, USA
| | - Y Chen
- Moores Cancer Center, University of California San Diego (UCSD) , San Diego, USA
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11
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Haliloglu Y, Ozcan A, Erdem S, Azizoglu ZB, Bicer A, Ozarslan OY, Kilic O, Okus FZ, Demir F, Canatan H, Karakukcu M, Uludag SZ, Kutuk MS, Unal E, Eken A. Characterization of cord blood CD3 + TCRVα7.2 + CD161 high T and innate lymphoid cells in the pregnancies with gestational diabetes, morbidly adherent placenta, and pregnancy hypertension diseases. Am J Reprod Immunol 2022; 88:e13555. [PMID: 35452164 DOI: 10.1111/aji.13555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 03/03/2021] [Revised: 03/07/2022] [Accepted: 04/12/2022] [Indexed: 11/28/2022] Open
Abstract
PROBLEM Although pregnant women with gestational diabetes (GD), morbidly adherent placenta (MAP), and pregnancy hypertension (pHT) diseases lead to intrauterine growth restriction (IUGR), little is known about their effect on mucosal-associated invariant T (MAIT) and innate lymphoid cells (ILC) in the umbilical cord. This study aimed to quantify and characterize MAIT cells and ILCs in the cord blood of pregnant women with GD, MAP, and pHT diseases. METHOD OF STUDY Cord blood mononuclear cells (CBMCs) were isolated by Ficoll-Paque gradient. CD3+ TCRVα7.2+ CD161high cells and ILC subsets were quantified by flow cytometry. CBMCs were stimulated with PMA/Ionomycin and Golgi Plug for 4 h and stained for IFN-γ, TNF-α, and granzyme B. The stained cells were analyzed on FACS ARIA III. RESULTS Compared with healthy pregnancies, in the cord blood of the pHT group, elevated number of lymphocytes was observed. Moreover, the absolute number of IFN-γ producing CD4+ or CD4- subsets of CD3+ TCRVα7.2+ CD161high cells as well as those producing granzyme B were significantly elevated in the pHT group compared to healthy controls suggesting increased MAIT cell activity in the pHT cord blood. Similarly, in the MAP group, the absolute number of total CD3+ TCRVα7.2+ CD161high cells, but not individual CD4+ or negative subsets, were significantly increased compared with healthy controls' cord blood. Absolute numbers of total CD3+ TCRVα7.2+ CD161high cells and their subsets were comparable in the cord blood of the GD group compared with healthy controls. Finally, the absolute number of total ILCs and ILC3 subset were significantly elevated in only pHT cord blood compared with healthy controls. Our data also reveal that IFN-γ+ or granzyme B+ cell numbers negatively correlated with fetal birth weight. CONCLUSIONS CD3+ TCRVα7.2+ CD161high cells and ILCs show unique expansion and activity in the cord blood of pregnant women with distinct diseases causing IUGR and may play roles in fetal growth restriction.
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Affiliation(s)
- Yesim Haliloglu
- Department of Medical Biology, School of Medicine, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Alper Ozcan
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, School of Medicine, Erciyes University, Kayseri, Turkey
| | - Serife Erdem
- Department of Medical Biology, School of Medicine, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Zehra Busra Azizoglu
- Department of Medical Biology, School of Medicine, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Ayten Bicer
- Department of Medical Biology, School of Medicine, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Ozcan Yeniay Ozarslan
- Department of Medical Biology, School of Medicine, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Omer Kilic
- Department of Medical Biology, School of Medicine, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Fatma Zehra Okus
- Department of Medical Biology, School of Medicine, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Fatma Demir
- Department of Medical Biology, School of Medicine, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Halit Canatan
- Department of Medical Biology, School of Medicine, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Musa Karakukcu
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, School of Medicine, Erciyes University, Kayseri, Turkey
| | - Semih Zeki Uludag
- Department of Obstetrics and Gynecology, School of Medicine, Erciyes University, Kayseri, Turkey
| | - M Serdar Kutuk
- Department of Obstetrics and Gynecology, School of Medicine, Bezmi Alem University, Istanbul, Turkey
| | - Ekrem Unal
- Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey.,Department of Pediatrics, Division of Pediatric Hematology and Oncology, School of Medicine, Erciyes University, Kayseri, Turkey.,Department of Blood Banking and Transfusion Medicine, Health Science Institution, Erciyes University, Kayseri, Turkey
| | - Ahmet Eken
- Department of Medical Biology, School of Medicine, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
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12
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Erdem S, Capitanio U, Campi R, Amparore D, Carme Mir M, Roussel E, Pavan N, Kara O, Klatte T, Degirmenci E, Aydin R, Minervini A, Serni S, Berni A, Giacomo R, Ozcan F. How important are morphologic subtypes on the prognosis of surgically treated non-metastatic papillary renal cell carcinoma? An analysis from a contemporary multi-institutional database. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00154-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Campi R, Pecoraro A, Mir M, Amparore D, Bertolo R, Erdem S, Kara O, Ingels A, Kriegmair M, Ouzaid I, Pavan N, Pecoraro A, Russel E, Minervini A, Serni S, Klatte T, Capitanio U. Decision-making and management strategies for patients with bilateral synchronous non-metastatic renal masses: Insights from a multi-centre European dataset. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00309-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Yaşar PA, Köse M, Erdem S, Hangül M, Karaman ZF, Eken A. Circulating fibrocyte level in children with cystic fibrosis. Pediatr Int 2022; 64:e15058. [PMID: 34779084 DOI: 10.1111/ped.15058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 11/02/2021] [Accepted: 11/12/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND This study aimed to evaluate circulating fibrocyte levels in cystic fibrosis (CF) patients during stable and exacerbation periods of the condition. METHODS The study group consisted of 39 patients diagnosed with CF and 20 healthy controls. Individuals included in the study were divided into three groups: CF, CF exacerbated, and a healthy control group. Their circulating fibrocyte levels were compared. Findings from a pulmonary function test and high-resolution computed tomography of the lung were evaluated and compared. RESULTS The circulating fibrocyte count was found to be significantly higher in patients with CF compared with the exacerbated and control groups. No correlation was found between the forced expiratory volume in 1 s and forced vital capacity values in the pulmonary function test and the circulating fibrocyte count. The circulating fibrocyte count in patients (in the CF group) with positive findings in the high-resolution computed tomography was statistically significantly lower. CONCLUSIONS The circulating fibrocyte level in the peripheral blood of the patients with CF was increased.
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Affiliation(s)
| | - Mehmet Köse
- Division of Pediatric Pulmonology, Erciyes University, Kayseri, Turkey
| | - Serife Erdem
- Department of Medical Biology, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Erciyes University, Kayseri, Turkey
| | - Melih Hangül
- Division of Pediatric Pulmonology, Erciyes University, Kayseri, Turkey
| | | | - Ahmet Eken
- Department of Medical Biology, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Erciyes University, Kayseri, Turkey
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15
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Yilmaz E, Azizoglu ZB, Aslan K, Erdem S, Haliloglu Y, Suna PA, Yay AH, Deniz K, Tasdemir A, Per S, Unal E, Karakukcu M, Patiroglu T. Therapeutic effects of vitamin D and IL-22 on methotrexate-induced mucositis in mice. Anticancer Drugs 2022; 33:11-18. [PMID: 34348356 DOI: 10.1097/cad.0000000000001128] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Mucositis is a common side effect of cancer therapies and transplant conditioning regimens. Management of mucositis involves multiple approaches from oral hygiene, anti-inflammatory, anti-apoptotic, cytoprotective, and antioxidant agents, to cryo-therapy, physical therapy, and growth factors. There is room for novel, affordable treatment options, or improvement of currently available therapies. Vitamin D has been shown to regulate mucosa-resident cell populations such as Th17 or innate lymphoid cells and critical mucosal cytokine IL-22; however, their therapeutic potential has not been put to test in preclinical mouse models. In this study, we aimed to test the therapeutic potential of vitamin D injections and IL-22 overexpression in a murine model of chemotherapy-induced mucositis. Balb/c mice were given daily intraperitoneal injections of vitamin D. Mucositis was induced by methotrexate. Another group received IL-22 plasmid via hydrodynamic gene delivery. Weight loss and intestinal histopathology, intestinal levels of cytokines IL-22, IL-17A, GM-CSF, IL-23, IFN-γ, TNF-α, and IL-10, and number of intestinal lamina propria B cell, neutrophil, and total innate lymphoid cells were quantified. Daily vitamin D injections ameliorated intestinal inflammation and elevated intestinal IL-22 levels compared with control groups. Temporal overexpression of IL-22 by hydrodynamic gene delivery slightly increased intestinal IL-22 but failed to confer significant protection from mucositis. To our knowledge, this is the first experimental demonstration in an animal model of mucositis of therapeutic use of vitamin D and IL-22 supplementation and our results with vitamin D suggest it may have merit in further trials in human mucositis patients.
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Affiliation(s)
- Ebru Yilmaz
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, Erciyes University School of Medicine
| | - Zehra Busra Azizoglu
- Molecular Biology and Genetics, Betül-Ziya Eren Genome and Stem Cell Center (GENKOK)
- Department of Medical Biology, Erciyes University, School of Medicine
| | - Kubra Aslan
- Molecular Biology and Genetics, Betül-Ziya Eren Genome and Stem Cell Center (GENKOK)
- Department of Medical Biology, Erciyes University, School of Medicine
| | - Serife Erdem
- Molecular Biology and Genetics, Betül-Ziya Eren Genome and Stem Cell Center (GENKOK)
- Department of Medical Biology, Erciyes University, School of Medicine
| | - Yesim Haliloglu
- Molecular Biology and Genetics, Betül-Ziya Eren Genome and Stem Cell Center (GENKOK)
- Department of Medical Biology, Erciyes University, School of Medicine
| | - Pinar Alisan Suna
- Department of Histology and Embryology, Erciyes University, School of Medicine
| | - Arzu Hanim Yay
- Molecular Biology and Genetics, Betül-Ziya Eren Genome and Stem Cell Center (GENKOK)
- Department of Histology and Embryology, Erciyes University, School of Medicine
| | - Kemal Deniz
- Department of Pathology, Erciyes University, School of Medicine
| | | | - Sedat Per
- Department of Chemistry and Chemical Processing Technologies, Kayseri University, Mustafa Çikrikçioğlu Vocational School
- Department of Biology, Faculty of Arts and Science, Yozgat Bozok University, Yozgat, Turkey
| | - Ekrem Unal
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, Erciyes University School of Medicine
- Molecular Biology and Genetics, Betül-Ziya Eren Genome and Stem Cell Center (GENKOK)
| | - Musa Karakukcu
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, Erciyes University School of Medicine
| | - Turkan Patiroglu
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, Erciyes University School of Medicine
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16
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Eken A, Erdem S, Haliloglu Y, Zehra Okus F, Cakir M, Fatih Yetkin M, Akcakoyunlu M, Karayigit MO, Azizoglu ZB, Bicer A, Gur TN, Aslan K, Hora M, Oukka M, Altuntas HD, Ufuk Nalbantoglu O, Gundogdu A, Mirza M, Canatan H. Temporal overexpression of IL-22 and Reg3γ differentially impacts the severity of experimental autoimmune encephalomyelitis. Immunology 2021; 164:73-89. [PMID: 33876425 PMCID: PMC8358722 DOI: 10.1111/imm.13340] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 03/30/2021] [Accepted: 03/31/2021] [Indexed: 12/18/2022] Open
Abstract
IL-22 is an alpha-helical cytokine which belongs to the IL-10 family of cytokines. IL-22 is produced by RORγt+ innate and adaptive lymphocytes, including ILC3, γδ T, iNKT, Th17 and Th22 cells and some granulocytes. IL-22 receptor is expressed primarily by non-haematopoietic cells. IL-22 is critical for barrier immunity at the mucosal surfaces in the steady state and during infection. Although IL-22 knockout mice were previously shown to develop experimental autoimmune encephalomyelitis (EAE), a murine model of multiple sclerosis (MS), how temporal IL-22 manipulation in adult mice would affect EAE course has not been studied previously. In this study, we overexpressed IL-22 via hydrodynamic gene delivery or blocked it via neutralizing antibodies in C57BL/6 mice to explore the therapeutic impact of IL-22 modulation on the EAE course. IL-22 overexpression significantly decreased EAE scores and demyelination, and reduced infiltration of IFN-γ+IL-17A+Th17 cells into the central nervous system (CNS). The neutralization of IL-22 did not alter the EAE pathology significantly. We show that IL-22-mediated protection is independent of Reg3γ, an epithelial cell-derived antimicrobial peptide induced by IL-22. Thus, overexpression of Reg3γ significantly exacerbated EAE scores, demyelination and infiltration of IFN-γ+IL-17A+ and IL-17A+GM-CSF+Th17 cells to CNS. We also show that Reg3γ may inhibit IL-2-mediated STAT5 signalling and impair expansion of Treg cells in vivo and in vitro. Finally, Reg3γ overexpression dramatically impacted intestinal microbiota during EAE. Our results provide novel insight into the role of IL-22 and IL-22-induced antimicrobial peptide Reg3γ in the pathogenesis of CNS inflammation in a murine model of MS.
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Affiliation(s)
- Ahmet Eken
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
| | - Serife Erdem
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
| | - Yesim Haliloglu
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
| | - Fatma Zehra Okus
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
| | - Mustafa Cakir
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
- Department of Medical BiologyVan Yuzuncu Yıl University School of MedicineVanTurkey
| | | | - Merve Akcakoyunlu
- Department of NeurologyErciyes University School of MedicineKayseriTurkey
| | | | - Zehra Busra Azizoglu
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
| | - Ayten Bicer
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
| | - Tugba Nur Gur
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
| | - Kubra Aslan
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
| | - Mehmet Hora
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
| | - Mohamed Oukka
- Department of ImmunologyUniversity of WashingtonSeattleWAUSA
| | - Hamiyet Donmez Altuntas
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
| | - Ozkan Ufuk Nalbantoglu
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
- Department of Computer EngineeringFaculty of EngineeringErciyes UniversityKayseriTurkey
| | - Aycan Gundogdu
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
- Department of Microbiology and Clinical MicrobiologyErciyes University School of MedicineKayseriTurkey
| | - Meral Mirza
- Department of NeurologyErciyes University School of MedicineKayseriTurkey
| | - Halit Canatan
- Department of Medical BiologyErciyes University School of MedicineKayseriTurkey
- Betül‐Ziya Eren Genome and Stem Cell Center (GENKOK)KayseriTurkey
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17
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Karahan M, Erdem S, Ava S, Kaya AA, Demirtas AA, Keklikci U. Evaluation of retinal and optic nerve vasculature by optic coherence tomography angiography in Migraine with Aura. J Fr Ophtalmol 2021; 44:1396-1402. [PMID: 34364694 DOI: 10.1016/j.jfo.2021.02.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 12/08/2020] [Revised: 02/06/2021] [Accepted: 02/09/2021] [Indexed: 11/29/2022]
Abstract
PURPOSE This study aimed to evaluate the retina by optic coherence tomography angiography (OCTA) in patients with migraine with aura (MA) in comparison with healthy controls. MATERIALS AND METHODS A total of 60 patients with MA and 56 control subjects who applied to the Ophthalmology Clinic of Dicle University between January 2020 and February 2020 were included in this study. In all patients, the vascular density (VD) of the radial peripapillary capillaries (RPCs) and optic nerve head (ONH), the VD of deep and superficial macular vascular networks, and foveal avascular zone (FAZ) were measured. RESULTS Patients with MA showed reduced VD measurements of the nasal and inferotemporal ONH, inferonasal RPCs, and deep macular plexus. No statistically significant difference was observed in the superficial macular VD values between the study groups. The majority of patients with MA showed hypertrophy in the deep FAZ. CONCLUSION There was a decrease in VD measurements in the deep macular capillary plexus, ONH, and peripapillary capillaries and hypertrophy in the deep FAZ in patients with MA. According to these results, patients with MA may have an increased risk of developing ocular and systemic vascular complications. Therefore, OCTA can be used to evaluate systemic and ocular hypoperfusion in patients with MA.
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Affiliation(s)
- M Karahan
- Dicle University School of Medicine Department of Ophthalmology, 21280 Sur/Dıyarbakır, Turkey
| | - S Erdem
- Dicle University School of Medicine Department of Ophthalmology, 21280 Sur/Dıyarbakır, Turkey.
| | - S Ava
- Dicle University School of Medicine Department of Ophthalmology, 21280 Sur/Dıyarbakır, Turkey
| | - A A Kaya
- Hakkari State Hospital, Hakkari, Turkey
| | - A A Demirtas
- Health Sciences University, Tepecik Training and Research Hospital, Izmir, Turkey
| | - U Keklikci
- Dicle University School of Medicine Department of Ophthalmology, 21280 Sur/Dıyarbakır, Turkey
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18
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Meagher M, Mir M, Rebez G, Autorino R, Campi R, Minervini A, Kriegmair M, Linares E, Hevia V, Musquera M, D’Anna M, Rousel E, Albersen M, Pavan N, Claps F, Antonelli A, Marchioni M, Erdem S, Paksoy N, Derweesh I. Is presence of vena caval thrombosis in primary tumor associated with worsened outcomes in metastatic renal cell carcinoma: Analysis of the REMARCC registry. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01020-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Erdem S, Capitanio U, Campi R, Mir M, Eduard R, Pavan N, Kara O, Klatte T, Kriegmair M, Degirmenci E, Aydin R, Minervini A, Serni S, Rebez G, Ozcan F. External validation of the VENUSS prognostic model to predict disease recurrence after surgery for non-metastatic papillary renal cell carcinoma: An analysis of a multi-institutional European cohort. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00997-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Erdem S, Narayanan JS, Worni M, Chen Y, White R. Inhibition of SUMOylation enhances responses to irreversible electroporation in pancreatic cancer. Br J Surg 2021. [DOI: 10.1093/bjs/znab202.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Objective
The revolutionary results of immunotherapy have not yet translated to pancreatic cancer (PC).
Irreversible electroporation (IRE) is a non-thermal ablative therapy that can generate tumor-specific immune responses, yet not sufficient to eradicate distant metastatic disease. Post-translational protein modification (PTM) by small ubiquitin-like modifier (SUMO) is involved in carcinogenesis and PD-L1 mediated immunosuppression. TAK-981 is a novel inhibitor of SUMOylation that has demonstrated induction anti-tumor immune responses in preclinical models. Our hypothesis is that TAK-981 will augment the effects of IRE in an immunocompetent orthotopic mouse model of PC.
Methods
The PC cell line (KPC4580P) was derived from an autochthonous tumor arising in a genetically engineered mouse model (KPC). The tumors were implanted orthotopically into the pancreas via laparotomy. Once tumors reached 5-7 mm in diameter, mice were randomized to one of four treatment groups: IRE alone, TAK-981 alone, IRE + TAK-981, or no treatment. IRE versus sham laparotomy (150 x 90 microsec pulses at 1500 V/cm) was performed once through second laparotomy. TAK-981 (7.5mg/kg) versus vehicle was delivered via subcutaneous injection twice weekly x four doses, starting on the day of IRE. Tumors were harvested on day 14 for flow cytometric analysis.
Results
Ultrasound was performed on days 8, 14 and 20 after initiation of treatment. Tumor growth in the IRE + TAK-981 group was significantly inhibited compared to sham-treated tumors (Fig. 1, *p=0.0002), and this effect persisted to day 20, even after treatment with TAK-981 was stopped on day 11 (p < 0.01). Flow cytometry revealed a greater than 2-fold increase in CD8+ T-cells (Fig. 2a, *p <0.05) and 4-fold increase in IFN-gamma+ CD8+ T-cells (Fig. 2b, *p=0.01) in tumors treated with the combination relative to sham-treated tumors.
Conclusion
Our results suggest that the combination of IRE with TAK-981 is associated with better local tumor control and a significant increase of CD8+ T-cells and IFN-gamma+ CD8+ T-cells. We expect that this combination might contribute systemic immune responses that would prevent or even eradicate distant metastasis. Given that immunosuppression mediated by PD-L1 is regulated by ubiquitination and is seen in 50% of PC tumors, targeting PTM with TAK-981 might also render PC responsive to immunotherapy with checkpoint inhibitors.
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Affiliation(s)
- S Erdem
- Moores Cancer Center, University of California, San Diego, USA
| | - J S Narayanan
- Moores Cancer Center, University of California, San Diego, USA
| | - M Worni
- Department of Visceral Surgery, Clarunis - University Centre for Gastrointestinal and Liver Diseases, St. Clara Hospital and University Hospital Basel, Basel, Switzerland
| | - Y Chen
- Moores Cancer Center, University of California, San Diego, USA
| | - R White
- Moores Cancer Center, University of California, San Diego, USA
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Erdem S, Degirmenci E, Bagbudar S, Ozluk Y, Sanli O, Ozcan F. Can preoperative Neutrophil/Lymphocyte Ratio (NLR) predict Grade Group Upgrading (GGU) at radical prostatectomy? EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)36185-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Erdem S, Simsek D, Degirmenci E, Aydin R, Bagbudar S, Ozluk Y, Sanli Y, Sanli O, Ozcan F. The diagnostic accuracy of Ga68 PSMA PET-CT on clinical lymph node staging before radical prostatectomy in patients with intermediate or high risk prostate cancer. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)36194-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Schubert K, Wester X, Weinmann C, Erdem S, Oetzel D, Debus J. PO-1411: Commissioning of Tomotherapy treatment planning in RayStation. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)01429-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Marchioni M, Campi R, Minervini A, Klatte T, Kriegmair M, Erdem S, Capitanio U, Roussel E, Albertsen M, Heck M, Porpiglia F, Van Bruwaene S, Linares E, Hevia V, Musquera M, Darweesh I, Autorino R, Pavan N, Antonelli A, Rubio-Briones J, Veccia A, Checcucci E, Claps F, Mir C. The impact of sarcomatoid features on survival outcomes in metastatic renal cell carcinoma patients receiving upfront cytoreductive nephrectomy: a retrospective analysis of a contemporary series. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)35499-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Erkek ET, Demir N, Erdem S, Ozkan G, Arslan O, BesıSıK SK. Erdheim–Chester disease: a single center experience. Hematol Transfus Cell Ther 2020. [DOI: 10.1016/j.htct.2020.09.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Bulut Arikan F, Özdemir FA, Şen D, Erdem S, Yörübulut S, Doğan H, Keskin L. TRPV2 POLYMORPHISMS INCREASE OR REDUCE THE RISK OF TYPE 2 DIABETES - HASHIMOTO THYROIDITIS COMORBIDITY. Acta Endocrinol (Buchar) 2020; 16:15-21. [PMID: 32685033 DOI: 10.4183/aeb.2020.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Context Thyroid disorders are common in diabetics and related to severe diabetic complications. TRPV2 ion channels have crucial functions in insulin secretion and glucose metabolism which have an important role in the pathophysiology of diabetes. Also, they have a significant effect on various immunological events that are involved in the HT pathophysiology. Objective This study aimed to investigate rs14039 and rs4792742 polymorphisms of the TRPV2 ion channels in type 2 diabetes mellitus (T2DM, n=100) Hashimoto thyroiditis (HT, n=70) and comorbid T2DM and HT (T2DM+HT, n=100) patients and control (n=100). Design Case-control study. Subject and Methods RT-PCR genotyping was used to determine rs14039 and rs4792742 polymorphisms with DNA samples of subjects and appropriate primer and probes. Besides, required biochemical analyses were performed. Results It was determined that the frequencies of the rs14039 GG homozygote polymorphic genotype and the G allele were significantly higher in T2DM+HT patients compared to the control (p=0.03 and p=0.01, respectively) and that especially the GG genotype increases the risk of T2DM+HT 3.046-fold (p=0.01, OR=3.046). It was detected that the GG genotype increased the risk of HT 2.54-fold (p=0.05, OR=2.541). TRPV2 rs4792742 polymorphisms reduce the risk of HT and T2DM+HT comorbidity almost by half and have a protective effect against HT and T2DM+HT. Conclusion The rs14039 GG genotype of the TRPV2 gene significantly increases the risks of development of T2DM+HT and HT disorders, may have a significant role in the pathophysiology of these diseases, also leading to predisposition for their development. Conversely, rs4792742 polymorphic genotypes have a strong protective effect against the HT and T2DM+HT comorbidity.
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Affiliation(s)
- F Bulut Arikan
- Kırıkkale University, Faculty of Medicine, Dept. of Physiology, Elazig, Turkey
| | - F A Özdemir
- Kırıkkale University, Faculty of Medicine, Bingol University, Faculty of Science and Art, Dept. of Molecular Biology and Genetics, Elazig, Turkey
| | - D Şen
- Kırıkkale University, Faculty of Medicine, Fırat University, Faculty of Medicine, Dept. of Medical Genetics, Elazig, Turkey
| | - S Erdem
- Kırıkkale University, Faculty of Medicine, Dept. of Medical Biology, Elazig, Turkey
| | - S Yörübulut
- Kırıkkale University, Faculty of Medicine, Faculty of Science and Letters, Dept. of Statistics, Kırıkkale, Elazig, Turkey
| | - H Doğan
- Kırıkkale University, Faculty of Medicine, Private Hayat Hospital, Dept. of Internal Medicine, Elazig, Turkey
| | - L Keskin
- Kırıkkale University, Faculty of Medicine, Elazig Training and Research Hospital, Dept. of Endocrinology, Elazig, Turkey
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Marchioni M, Campi R, Minervini A, Klatte T, Kriegmair M, Erdem S, Capitanio U, Roussel E, Albertsen M, Heck M, Porpiglia F, Van Bruwaene S, Linares E, Hevia V, Musquera M, Derweesh I, Autorino R, Pavan N, Antonelli A, Rubio-Briones J, Vecchia A, Checcucci E, Claps F, Mir M. The impact of sarcomatoid features on survival outcomes in metastatic renal cell carcinoma patients receiving upfront cytoreductive nephrectomy: A retrospective analysis of a contemporary series. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33439-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Campi R, Marchioni M, Roussel E, Capitanio U, Klatte T, Kriegmair M, Erdem S, Rubio-Briones J, Minervini A, Heck M, Porpiglia F, Van Bruwaene S, Linares E, Hevia V, Musquera M, Derweesh I, Autorino R, Pavan N, Antonelli A, Palumbo C, Guruli G, Ghali F, Amiel T, Mir M. Minimally invasive versus open cytoreductive nephrectomy for primary metastatic renal cancer: A multi-institutional experience from the REMARCC registry. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33438-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Eken A, Cansever M, Okus FZ, Erdem S, Nain E, Azizoglu ZB, Haliloglu Y, Karakukcu M, Ozcan A, Devecioglu O, Aksu G, Arikan Ayyildiz Z, Topal E, Karakoc Aydiner E, Kiykim A, Metin A, Cipe F, Kaya A, Artac H, Reisli I, Guner SN, Uygun V, Karasu G, Dönmez Altuntas H, Canatan H, Oukka M, Ozen A, Chatila TA, Keles S, Baris S, Unal E, Patiroglu T. ILC3 deficiency and generalized ILC abnormalities in DOCK8-deficient patients. Allergy 2020; 75:921-932. [PMID: 31596517 DOI: 10.1111/all.14081] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 04/21/2019] [Revised: 09/10/2019] [Accepted: 09/20/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Dedicator of cytokinesis 8 (DOCK8) deficiency is the main cause of the autosomal recessive hyper-IgE syndrome (HIES). We previously reported the selective loss of group 3 innate lymphoid cell (ILC) number and function in a Dock8-deficient mouse model. In this study, we sought to test whether DOCK8 is required for the function and maintenance of ILC subsets in humans. METHODS Peripheral blood ILC1-3 subsets of 16 DOCK8-deficient patients recruited at the pretransplant stage, and seven patients with autosomal dominant (AD) HIES due to STAT3 mutations, were compared with those of healthy controls or post-transplant DOCK8-deficient patients (n = 12) by flow cytometry and real-time qPCR. Sorted total ILCs from DOCK8- or STAT3-mutant patients and healthy controls were assayed for survival, apoptosis, proliferation, and activation by IL-7, IL-23, and IL-12 by cell culture, flow cytometry, and phospho-flow assays. RESULTS DOCK8-deficient but not STAT3-mutant patients exhibited a profound depletion of ILC3s, and to a lesser extent ILC2s, in their peripheral blood. DOCK8-deficient ILC1-3 subsets had defective proliferation, expressed lower levels of IL-7R, responded less to IL-7, IL-12, or IL-23 cytokines, and were more prone to apoptosis compared with those of healthy controls. CONCLUSION DOCK8 regulates human ILC3 expansion and survival, and more globally ILC cytokine signaling and proliferation. DOCK8 deficiency leads to loss of ILC3 from peripheral blood. ILC3 deficiency may contribute to the susceptibility of DOCK8-deficient patients to infections.
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Erdem S, Özbalak M, Baykal C, Kalayoğlu Beşışık S. A relapsed refractory CD30 positive cutaneous anaplastic large cell lymphoma with large B-cell transformation responding to brentuximab vedotin after multiple lines of treatment. Leuk Res 2019. [DOI: 10.1016/s0145-2126(19)30352-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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31
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Eken A, Yetkin MF, Okus FZ, Cakir M, Karayigit MO, Erdem S, Haliloglu Y, Oukka M, Altuntas HD, Mirza M, Canatan H. IL-22 and Reg3γ overexpression affects Experimental Autoimmune Encephalomyelitis Severity. The Journal of Immunology 2019. [DOI: 10.4049/jimmunol.202.supp.193.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
IL-22 belongs to IL-10 family cytokines and is produced by RORγt+ innate and adaptive lymphocytes, including ILC3, γδ, iNKT, Th17, and Th22 cells. IL-22 receptor, however, is expressed primarily by non-hematopoietic cells. IL-22 is critical for barrier immunity at the mucosal surfaces in the steady state and during infection. Although IL-22 knock out mice were previously shown to develop experimental autoimmune encephalomyelitis, a murine model of multiple sclerosis (MS), how IL-22 manipulation in adult mice would affect EAE course has not been studied. In this study, we over-expressed IL-22 via hydrodynamic gene delivery or blocked it via neutralizing antibodies in C57BL/6 mice to assess the impact of IL-22 modulation on EAE course. IL-22 overexpression significantly but marginally decreased EAE scores, demyelination and reduced infiltration of IFNγ+IL-17A+ Th17 cells into central nervous system (CNS). In contrast, neutralization of IL-22 exacerbated EAE scores. Surprisingly, overexpression of Reg3γ, an epithelial cell-derived antimicrobial peptide induced by IL-22, significantly exacerbated EAE scores and infiltration of IFN-γ+IL-17A+ and IL-17A+GM-CSF+ Th17 cells to CNS. Our results provide novel insight into the role of IL-22 and IL-22-induced antimicrobial peptides in the pathogenesis of CNS inflammation in a murine model of MS.
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Affiliation(s)
- Ahmet Eken
- 1Erciyes University, Turkey
- 2Betul-Ziya Eren Genome and Stem Cell Center, Turkey
| | | | | | | | | | | | | | - Mohamed Oukka
- 4Department of Immunology, University of Washington School of Medicine, Seattle, WA, Turkey
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Cinar O, Bolat M, Erdem S, Kaymaz E, Demirkiran E, Girgin R, Bulut E, Akduman B, Mungan N. HP-01-004 The effects of antifibrotic agent-pirfenidone on penile cavernous function in experimental ischaemic priapism-induced rat model. J Sex Med 2019. [DOI: 10.1016/j.jsxm.2019.03.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Eken A, Cansever M, Somekh I, Mizoguchi Y, Zietara N, Okus FZ, Erdem S, Canatan H, Akyol S, Ozcan A, Karakukcu M, Hollizeck S, Rohlfs M, Unal E, Klein C, Patiroglu T. Genetic Deficiency and Biochemical Inhibition of ITK Affect Human Th17, Treg, and Innate Lymphoid Cells. J Clin Immunol 2019; 39:391-400. [DOI: 10.1007/s10875-019-00632-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 04/14/2019] [Indexed: 10/27/2022]
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Eken A, Yetkin MF, Vural A, Okus FZ, Erdem S, Azizoglu ZB, Haliloglu Y, Cakir M, Turkoglu EM, Kilic O, Kara I, Dönmez Altuntaş H, Oukka M, Kutuk MS, Mirza M, Canatan H. Fingolimod Alters Tissue Distribution and Cytokine Production of Human and Murine Innate Lymphoid Cells. Front Immunol 2019; 10:217. [PMID: 30828332 PMCID: PMC6385997 DOI: 10.3389/fimmu.2019.00217] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 01/25/2019] [Indexed: 12/12/2022] Open
Abstract
Sphingosine-1 phosphate receptor 1 (S1PR1) is expressed by lymphocytes and regulates their egress from secondary lymphoid organs. Innate lymphoid cell (ILC) family has been expanded with the discovery of group 1, 2 and 3 ILCs, namely ILC1, ILC2 and ILC3. ILC3 and ILC1 have remarkable similarity to CD4+ helper T cell lineage members Th17 and Th1, respectively, which are important in the pathology of multiple sclerosis (MS). Whether human ILC subsets express S1PR1 or respond to its ligands have not been studied. In this study, we used peripheral blood/cord blood and tonsil lymphocytes as a source of human ILCs. We show that human ILCs express S1PR1 mRNA and protein and migrate toward S1P receptor ligands. Comparison of peripheral blood ILC numbers between fingolimod-receiving and treatment-free MS patients revealed that, in vivo, ILCs respond to fingolimod, an S1PR1 agonist, resulting in ILC-penia in circulation. Similarly, murine ILCs responded to fingolimod by exiting blood and accumulating in the secondary lymph nodes. Importantly, ex vivo exposure of ILC3 and ILC1 to fingolimod or SEW2871, another S1PR1 antagonist, reduced production of ILC3- and ILC1- associated cytokines GM-CSF, IL-22, IL-17, and IFN-γ, respectively. Surprisingly, despite reduced number of lamina propria-resident ILC3s in the long-term fingolimod-treated mice, ILC3-associated IL-22, IL-17A, GM-CSF and antimicrobial peptides were high in the gut compared to controls, suggesting that its long term use may not compromise mucosal barrier function. To our knowledge, this is the first study to investigate the impact of fingolimod on human ILC subsets in vivo and ex vivo, and provides insight into the impact of long term fingolimod use on ILC populations.
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Affiliation(s)
- Ahmet Eken
- Erciyes University School of Medicine, Department of Medical Biology, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Mehmet Fatih Yetkin
- Department of Neurology, Erciyes University School of Medicine, Kayseri, Turkey
| | - Alperen Vural
- Department of Ear Nose and Throat, Erciyes University School of Medicine, Kayseri, Turkey
| | - Fatma Zehra Okus
- Erciyes University School of Medicine, Department of Medical Biology, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Serife Erdem
- Erciyes University School of Medicine, Department of Medical Biology, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Zehra Busra Azizoglu
- Erciyes University School of Medicine, Department of Medical Biology, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Yesim Haliloglu
- Erciyes University School of Medicine, Department of Medical Biology, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Mustafa Cakir
- Erciyes University School of Medicine, Department of Medical Biology, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | | | - Omer Kilic
- Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Irfan Kara
- Department of Ear Nose and Throat, Erciyes University School of Medicine, Kayseri, Turkey
| | | | - Mohamed Oukka
- Department of Immunology, University of Washington, Seattle, WA, United States
| | - Mehmet Serdar Kutuk
- Department of Obstetrics and Gynecology, Erciyes University School of Medicine, Kayseri, Turkey
| | - Meral Mirza
- Department of Neurology, Erciyes University School of Medicine, Kayseri, Turkey
| | - Halit Canatan
- Erciyes University School of Medicine, Department of Medical Biology, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
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Eken A, Yetkin MF, Okus FZ, Erdem S, Cakir M, Vural A, Donmez-Altuntas H, Mirza M, Canatan H. Fingolimod impacts innate lymphoid cell biology. The Journal of Immunology 2018. [DOI: 10.4049/jimmunol.200.supp.41.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Group 3 Innate lymphoid cells (ILC3) resemble to Th17 cells in their production of effector cytokines and tissue localization. Th17 cells have been shown to be pathogenic in mouse MS models. Previous studies from others and our lab have shown that Sphingosine 1 phosphate 1 (S1P1) receptor impacts Th17 cell biology. S1P1 receptor agonist Fingolimod is used in the treatment of Multiple sclerosis (MS). To this day, however, the effects of fingolimod on human ILC populations have not been studied. In this study, using PBMCs from Fingolimod-receiving or control relapsing-remitting MS patients, combined with ex vivo culture system we characterized the impact of S1P1 agonists on ILC populations via Flow cytometry, real-time qPCR and ELISA. We report that human ILCs express S1P1 receptor, respond to it, as evident in reduced peripheral ILC cellularity in MS patients receiving Fingolimod. Also in culture, exposure to S1P1 agonists reduced gene expression and secretion of GMCSF and IFN-g by human ILC3 and ILC1, respectively. To our knowledge, this is the first report to study the impact of fingolimod on ILC populations in MS patients.
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Eken A, Okus FZ, Patiroglu T, Erdem S, Karakukcu M, Cansever M, Donmez-Altuntas H, Canatan H, Oukka M, Topal E, Kiyim A, Karakoc E, Metin A, Reisli I, Uygun V, Baris S, Keles S, Ozen A, Karasu G, Unal E. Group 3 innate lymhoid cells are absent in DOCK8-defective HIES patients. The Journal of Immunology 2018. [DOI: 10.4049/jimmunol.200.supp.170.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Innate lymphoid cell (ILC) subsets ILC1, ILC2 and ILC3 mirror image the functions helper CD4+ T cell subsets, Th1, Th2 and Th17, respectively; rely on similar transcription factors for their development, and produce similar effector cytokines. Thus, they have recently been shown to be crucial for protective immunity in mice. More importantly, in several chronic inflammatory diseases activated or increased frequency of ILCs have been reported in the circulation or affected tissues of patients. Our previous work with Dock8-defective Dock8pri/pri mice revealed that Dock8 is required for the development/function and survival of murine ILC3s. Thus Dock8pri/pri mice lacked ILC3s and was susceptible to Citrobacter rodentium infections. However to date, whether DOCK8 regulates ILC3 development or functions in humans has not been addressed. In the current study, using 11 DOCK8 mutant patients from across Turkey, we show, for the first time, that humans with DOKC8 deficiency lack peripheral ILC3s. Reduction in blood ILC3 could be verified by flow cytometry. Additionally, sorted total blood ILC population obtained from HIES patients with DOCK8 mutations shows diminished ILC3-specific Gm-csf, AhR and il23r gene expression in line with ILC3 loss. The defect is dramatic in ILC3s and less so in ILC2s in circulation. Flow cytometric examination of 11 patients revealed full restroration of ILC3s following hematopoietic stem cell transplantation. We also show that sorted peripheral ILC precursor population obtained from DOCK8 mutant patients has impaired capacity to proliferate in ILC1-ILC2-ILC3 polarizing conditions. This is the first report in the literature to show a selective deletion of ILC3s in HIES patients with DOCK8 mutations.
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Genc S, Dervisoglu E, Erdem S, Arslan O, Aktan M, Omer B. Comparison of performance and abnormal cell flagging of two automated hematology analyzers: Sysmex XN 3000 and Beckman Coulter DxH 800. Int J Lab Hematol 2017; 39:633-640. [DOI: 10.1111/ijlh.12717] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 06/09/2017] [Indexed: 11/28/2022]
Affiliation(s)
- S. Genc
- Istanbul Faculty of Medicine; Department of Biochemistry; Istanbul University; Istanbul Turkey
| | - E. Dervisoglu
- Istanbul Faculty of Medicine; Department of Biochemistry; Istanbul University; Istanbul Turkey
| | - S. Erdem
- Istanbul Faculty of Medicine; Department of Hematology; Istanbul University; Istanbul Turkey
| | - O. Arslan
- Istanbul Faculty of Medicine; Department of Hematology; Istanbul University; Istanbul Turkey
| | - M. Aktan
- Istanbul Faculty of Medicine; Department of Hematology; Istanbul University; Istanbul Turkey
| | - B. Omer
- Istanbul Faculty of Medicine; Department of Biochemistry; Istanbul University; Istanbul Turkey
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Erdem S, Yılmaz Işıkhan S, Gokmen Ozel H. MON-P257: Do Attitudes and Behaviours of the Parents Affect on Body Mass Index in Elemantary School Children? Clin Nutr 2017. [DOI: 10.1016/s0261-5614(17)30832-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Apaydin T, Ozkaya HM, Keskin FE, Haliloglu OA, Karababa K, Erdem S, Kadioglu P. Daily life reflections of acromegaly guidelines. J Endocrinol Invest 2017; 40:323-330. [PMID: 27766549 DOI: 10.1007/s40618-016-0567-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Accepted: 10/11/2016] [Indexed: 12/12/2022]
Abstract
PURPOSE To determine the differences in acromegaly diagnosis, treatment, and follow-up among Turkish endocrinologists, and to investigate how the published guidelines are applied in clinical practice. METHODS The questionnaire was formatted as an electronic survey, conducted between November and December 2015, and sent weekly for 6 weeks via e-mail to 528 endocrinologists in Turkey. RESULTS The questionnaire was answered by 37.4 % of endocrinologists. Insulin-like growth factor-1 and nadir growth hormone level after 75 g oral glucose tolerance test (nadir GH-OGTT) were the most commonly preferred methods for the initial diagnosis. A total of 49.5 % of the participants reported using preoperative medical therapy (MT) either routinely or on a case-to-case basis. Somatostatin analogs were the most commonly used drugs, both in pre- and postoperative MT. Disease activity following surgery was assessed in the 3rd postoperative month using IGF-1 levels. Similarly, IGF-1 monitoring was preferred in the follow-up period. Monitoring nadir GH-OGTT levels was the most commonly used method in the assessment of discordant test results. The dose titration was done at month 3 after the start of MT. Resistance to SRLs was considered after using the maximal dose for at least 6 months. Pegvisomant was generally used in second- and third-line therapy. Similarly, cabergoline was not preferred in monotherapy by the majority of participants. Radiotherapy was considered in patients with incomplete response to surgery and medical treatments. CONCLUSIONS Although there were subtle differences, clinical practice guidelines were usually followed among Turkish endocrinologists.
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Affiliation(s)
- T Apaydin
- Department of Internal Medicine, Cerrahpasa Medical School, University of Istanbul, Istanbul, Turkey
| | - H M Ozkaya
- Department of Endocrinology and Metabolism, Cerrahpasa Medical School, University of Istanbul, 34303, Cerrahpasa, Istanbul, Turkey
| | - F E Keskin
- Department of Endocrinology and Metabolism, Cerrahpasa Medical School, University of Istanbul, 34303, Cerrahpasa, Istanbul, Turkey
| | - O A Haliloglu
- Department of Endocrinology and Metabolism, Cerrahpasa Medical School, University of Istanbul, 34303, Cerrahpasa, Istanbul, Turkey
| | - K Karababa
- Department of Endocrinology and Metabolism, Cerrahpasa Medical School, University of Istanbul, 34303, Cerrahpasa, Istanbul, Turkey
| | - S Erdem
- Pituitary Center, University of Istanbul, Istanbul, Turkey
| | - P Kadioglu
- Department of Endocrinology and Metabolism, Cerrahpasa Medical School, University of Istanbul, 34303, Cerrahpasa, Istanbul, Turkey.
- Pituitary Center, University of Istanbul, Istanbul, Turkey.
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Ekinci O, Yanık S, Terzioğlu B, Yılmaz Akyüz E, Dokuyucu A, Erdem S. SUN-PP211: The Effect of Calcium β-Hydroxy-β-Methylbutyrate, Vitamin D and Protein Supplementation on Postoperative Immobilization in Elderly Malnourished Patients with Hip Fracture: A Randomized Controlled Study. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30362-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Akar S, Erdem S, Akat K, Solmaz D, Sari I. FRI0132 The Contribution of Disease Activity on Function and Quality of Life in Patients with Ankylosing Spondylitis; Investigating Causality by Using Structural Equation Model. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.1963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Kibar AE, Hallioglu O, Erdem S, Celik I. Prenatal Diagnosis and Postnatal Follow-up of congenitally corrected transposition of the great arteries and recurrent supraventricular tachycardia. Images Paediatr Cardiol 2013; 15:7-11. [PMID: 23720695 PMCID: PMC3663155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The prenatal sonographic diagnosis of congenitally corrected transposition of the great arteries (ccTGA), a rare form of congenital heart disease is very difficult. A24-year-old woman was referred to our center at 28 weeks' gestationbecause of suspected fetal cardiac anomalies. We report a case of ccTGA with supraventricular tachycardia, ventricular septal defect, pulmonary valve stenosis, tricuspid valvar displacement and moderate tricuspid regurgitation during her pregnancy. The combined presence of SVT and ccTGA are occasionally present in the literature.
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Affiliation(s)
- AE Kibar
- Departments of Pediatric Cardiology, Mersin Maternal and Child Health Hospital, Mersin, Turkey.,
Kibar Ayse Esin, Mersin Maternal and Child Health Hospital Güneykent/ Mersin, Turkey.
| | - O Hallioglu
- Departments of Pediatric Cardiology, Mersin Maternal and Child Health Hospital, Mersin, Turkey
| | - S Erdem
- Departments of Pediatric Cardiology, Mersin Maternal and Child Health Hospital, Mersin, Turkey
| | - I Celik
- Departments of Neonatology, Neonatal Intensive Care Unit, Mersin Maternal and Child Health Hospital, Mersin, Turkey
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Erdem S, Altunçul H, Filoğlu G, Ölçen A, Bülbül Ö. Sequencing of mtDNA HV1 and HV2 regions from samples with trace amount of DNA. Forensic Science International: Genetics Supplement Series 2011. [DOI: 10.1016/j.fsigss.2011.09.089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Sanli O, Zorba OU, Erdem S, Tezer M, Kilicar-Slan I, Esen T, Tunc M. Microscopic venous invasion is associated with disease free and cancer free survival in renal cell carcinoma. MINERVA UROL NEFROL 2010; 62:347-353. [PMID: 20944535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
AIM The aim of this study was to investigate the significance of microscopic venous invasion (MVI) as a prognostic factor for patients with renal cell carcinoma (RCC). METHODS The present study included 220 patients with non-metastatic RCC who underwent radical nephrectomy (RN). MVI was defined by the presence of a cancer cell in blood vessels based on microscopic examination of hematoxylin-eosin stained specimens. The impact of MVI on disease progression and survival after 37 (6-190) months of median follow-up and its correlation with known clinicopathological features were studied. Survival analyses using Kaplan-Meier and log-rank models for univariate comparisons and Cox proportional hazards model for multivariate analyses were performed. RESULTS MVI was found in 68 patients (30.8%), and of these, 26 (38.2%) developed a tumor recurrence and 16 (23.5%) died of cancer progression, whereas only 18 (11.8%) of the remaining 152 patients without MVI presented with disease-recurrence and 8 (5.3%) died of cancer. In the multivariate analysis, MVI (P=0.014) Fuhrman's grade (P=0.028), and sarcomatoid differentiation (SD) (P=0.01) were the factors predicted a decreased disease-free survival (DFS). Meanwhile, MVI (P=0.04) and SD (P=0.029) were also found to be predictor of cancer specific survival (CSS) with necrosis (P=0.037) in multivariate analysis. CONCLUSION The present study showed that MVI is associated with the vast majority of the adverse pathological features related with RCC. Furthermore, it was found to be an independent clinical prognostic factor for DFS and CSS.
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Affiliation(s)
- O Sanli
- Departments of Urology and Pathology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
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Bakkaloglu SA, Saygili A, Sever L, Noyan A, Akman S, Ekim M, Aksu N, Doganay B, Yildiz N, Duzova A, Soylu A, Alpay H, Sonmez F, Civilibal M, Erdem S, Kardelen F. Assessment of cardiovascular risk in paediatric peritoneal dialysis patients: a Turkish Pediatric Peritoneal Dialysis Study Group (TUPEPD) report. Nephrol Dial Transplant 2009; 24:3525-32. [DOI: 10.1093/ndt/gfp297] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Aksoy M, Erdem S, Dincol G, Erdogan G, Cilingiroglu K, Dincol K. Combination of hereditary elliptocytosis and hereditary spherocytosis. Clin Genet 2008; 6:46-50. [PMID: 4426130 DOI: 10.1111/j.1399-0004.1974.tb00629.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Ayan M, Gül M, Seydanoglu A, Erayman I, Erdem S, Cander B. P1791 Comparison of the effects of erdosteine and n-acetylcysteine on the levels of glutathione, myeloperoxidase, plasma and tissue malondialdehyde in experimental sepsis model. Int J Antimicrob Agents 2007. [DOI: 10.1016/s0924-8579(07)71630-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Abstract
It is hard to deny the notion that the Internet has been very efficient in distributing health information to millions of individuals and has become one of the best marketing tools in healthcare. We have been witnessing so many very creative and interactive practices in this field that we can safely assume that it is now the time for e-commerce in healthcare industry. While this is true for many participants, there are also some who are concerned about using some of these new online options in the field of healthcare. Most of these concerns are derived from the questionable accuracy of the "health" information on the net. Considering the fact that the subject matter of the field is "health" we can realize that these concerns are serious and deserve an in-depth look. This paper reviews some of the most current practices in the field and provides some examples of these online options. It is hoped that the review of these examples will result in similar inquiries in the future and as those questionable options are exposed more and more, they will eventually be eliminated and replaced with the better ones.
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Affiliation(s)
- S Erdem
- Department of Marketing, University of Houston-Clear Lake, Houston, TX 77058, USA.
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Abstract
Exercise is the strongest stress to which the body is ever exposed. The body responds to this stress through a set of physiological changes in its metabolic, hormonal and immunological systems. In this study, responses of the immune system to the long-term aerobic and anaerobic exercises have been investigated. Twenty-four sedentary male university students and officers participated in this study. Subjects were divided into two groups, each consisting of twelve people. Group-1 (age: 25.67 +/- 3.79 years, height: 174.83 +/- 5.15 cm, body mass: 72.17 +/- 8.05 kg) and Group-2 (age: 24.83 +/- 2.89 years, height: 175.3 +/- 6.68 cm, body mass: 70.67 +/- 6.15 kg). After physical examinations of the two groups, resting ECG, respiratory function tests and metabolic tests with the use of the breath by breath method were completed, and anerobic heart rates at the threshold level were determined. The first group was subjected to exercise using Monark ergometry cycles at a heart rate 10% below the threshold level for 8 weeks, 3 days a week, 30 min a day. The second group exercised at a heart rate 10% above the threshold level for 8 weeks, 3 days a week, 20 min a day. Heart rates were checked with the Polar Test during exercises. Pre-exercise (Ep) venous blood samples were taken from each group before their 1st and 24th exercises. Hb (gr), Hct (%), erythrocyte (x10(6)/microl), leukocyte (x10(6)/microl), leukocyte subpopulations (neutrophil, lymphocyte, monocyte, eosinophil, basophil %) and thrombocyte (x10(6)/microl) values were determined. CD3, CD4, CD8, CD19 and CD56 values were determined by Flow Cytometry method using monoclonal antibodies. The chronic effects of exercise were examined through a comparison of Ep blood samples at the 1st exercise with Ep blood samples at the 24th exercise. While the increase in the total leukocyte number was significant (p<0.05) in the first group, increase in the second group was found to be non-significant. When percentiles of leukocyte subpopulations were taken into consideration, changes in the first and second group were found to be non-significant. When lymphocyte subgroups were examined; in the first group a decrease in CD3 and CD4 percentiles to 7% and 12%, respectively (p<0.05) and a 65% increase (p<0.01) in the CD56 value were observed. In the second group a decrease in CD3 and CD4 percentiles to 13% and 17%, respectively (p<0.05) and a 73% increase (p<0.01) in the CD56 value were observed. The Sample-t Test and The Wilcoxon Test were used for statistical analysis.
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Affiliation(s)
- M Unal
- Department of Sports Medicine, Istanbul Faculty of Medicine, Istanbul University, Turkey.
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Demir E, Bomont P, Erdem S, Cavalier L, Demirci M, Kose G, Muftuoglu S, Cakar AN, Tan E, Aysun S, Topcu M, Guicheney P, Koenig M, Topaloglu H. Giant axonal neuropathy: clinical and genetic study in six cases. J Neurol Neurosurg Psychiatry 2005; 76:825-32. [PMID: 15897506 PMCID: PMC1739689 DOI: 10.1136/jnnp.2003.035162] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Giant axonal neuropathy (GAN) is a severe recessive disorder characterised by variable combination of progressive sensory motor neuropathy, central nervous system (CNS) involvement, and "frizzly" hair. The disease is caused by GAN gene mutations on chromosome 16q24.1. AIMS To search for GAN gene mutations in Turkish patients with GAN and characterise the phenotype associated with them. METHODS Linkage and mutation analyses were performed in six affected patients from three consanguineous families. These patients were also investigated by cranial magnetic resonance imaging (MRI) and electroencephalography (EEG). Electromyography (EMG) was performed in heterozygous carriers from family 1 and family 3. RESULTS Linkage to 16q24.1 was confirmed by haplotype analysis. GAN mutations were identified in all families. Family 1 had the R293X mutation, previously reported in another Turkish family. Families 2 and 3, originating from close geographical areas, shared a novel mutation, 1502+1G>T, at the donor splice site of exon 9. All patients displayed a common phenotype, including peripheral neuropathy, cerebellar ataxia, and frizzly hair. Cranial MRI showed diffuse white matter abnormalities in two patients from family 1 and the patient from family 3, and minimal white matter involvement in the patient from family 2. EMG of a heterozygous R293X mutation carrier showed signs of mild axonal neuropathy, whereas a 1502+1G>T mutation carrier had normal EMG. EEG abnormalities were found in three patients. CONCLUSION These findings highlight the association of CNS involvement, in particular white matter abnormalities, with peripheral neuropathy in GAN. The phenotypical consequences of both mutations (when homozygous) were similar.
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Affiliation(s)
- E Demir
- Hacettepe Cocuk Hastahanesi, Cocuk Noroloji Bolumu, 06100, Ankara, Turkey
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