1
|
Acharya KR, Cohen A, Brankston G, Soucy JPR, Hulth A, Löfmark S, Brownstein JS, Davidovich N, Ellen ME, Fisman DN, Moran-Gilad J, Steinman A, MacFadden DR, Greer AL. An Evaluation of the Impact of an OPEN Stewardship Generated Feedback Intervention on Antibiotic Prescribing among Primary Care Veterinarians in Canada and Israel. Animals (Basel) 2024; 14:626. [PMID: 38396594 PMCID: PMC10885889 DOI: 10.3390/ani14040626] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 02/06/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
An interrupted time-series study design was implemented to evaluate the impact of antibiotic stewardship interventions on antibiotic prescribing among veterinarians. A total of 41 veterinarians were enrolled in Canada and Israel and their prescribing data between 2019 and 2021 were obtained. As an intervention, veterinarians periodically received three feedback reports comprising feedback on the participants' antibiotic prescribing and prescribing guidelines. A change in the level and trend of antibiotic prescribing after the administration of the intervention was compared using a multi-level generalized linear mixed-effect negative-binomial model. After the receipt of the first (incidence rate ratios [IRR] = 0.88; 95% confidence interval (CI): 0.79, 0.98), and second (IRR = 0.85; 95% CI: 0.75, 0.97) feedback reports, there was a reduced prescribing rate of total antibiotic when other parameters were held constant. This decline was more pronounced among Israeli veterinarians compared to Canadian veterinarians. When other parameters were held constant, the prescribing of critical antibiotics by Canadian veterinarians decreased by a factor of 0.39 compared to that of Israeli veterinarians. Evidently, antibiotic stewardship interventions can improve antibiotic prescribing in a veterinary setting. The strategy to sustain the effect of feedback reports and the determinants of differences between the two cohorts should be further explored.
Collapse
Affiliation(s)
- Kamal R. Acharya
- Department of Population Medicine, University of Guelph, Guelph, ON N1G 2W1, Canada;
| | - Adar Cohen
- Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (A.C.); (A.S.)
| | - Gabrielle Brankston
- Department of Population Medicine, University of Guelph, Guelph, ON N1G 2W1, Canada;
| | - Jean-Paul R. Soucy
- Division of Epidemiology, Dalla Lana School of Public Health, University of Toronto, Toronto, ON M5T 3M7, Canada; (J.-P.R.S.); (D.N.F.)
| | - Anette Hulth
- Public Health Agency of Sweden, 171 82 Stockholm, Sweden; (A.H.); (S.L.)
| | - Sonja Löfmark
- Public Health Agency of Sweden, 171 82 Stockholm, Sweden; (A.H.); (S.L.)
| | - John S. Brownstein
- Computational Epidemiology Lab, Boston Children’s Hospital, Boston, MA 02115, USA;
- Harvard Medical School, Harvard University, Boston, MA 02115, USA
| | - Nadav Davidovich
- School of Public Health, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel; (N.D.); (J.M.-G.)
| | - Moriah E. Ellen
- Department of Health Policy and Management, Guilford Glazer Faculty of Business and Management, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
- Department of Health Policy and Management, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
- Institute for Health Policy, Management and Evaluation, University of Toronto, Toronto, ON M5T 3M6, Canada
| | - David N. Fisman
- Division of Epidemiology, Dalla Lana School of Public Health, University of Toronto, Toronto, ON M5T 3M7, Canada; (J.-P.R.S.); (D.N.F.)
| | - Jacob Moran-Gilad
- School of Public Health, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel; (N.D.); (J.M.-G.)
| | - Amir Steinman
- Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel; (A.C.); (A.S.)
| | | | - Amy L. Greer
- Department of Population Medicine, University of Guelph, Guelph, ON N1G 2W1, Canada;
| |
Collapse
|
2
|
Arnon S, Shahar G, Brunstein Klomek A. Continuity of care in suicide prevention: current status and future directions. Front Public Health 2024; 11:1266717. [PMID: 38259744 PMCID: PMC10800998 DOI: 10.3389/fpubh.2023.1266717] [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: 07/25/2023] [Accepted: 12/22/2023] [Indexed: 01/24/2024] Open
Abstract
Introduction Continuity of Care (CoC) is central to suicide prevention. The present study aims to review contemporary definitions, operationalization in research, and key components of CoC in the prevention of suicide. Methods The present study is a narrative review. A thorough search of available literature on CoC and suicidality was conducted. Studies published between 1995 and 2021 were reviewed and selected based on relevance to CoC and suicidality. Selected research was subsequently summarized to outline definitions of CoC, its operationalization in research, and key components for suicide prevention. Results The definition, measurement, and operationalization of CoC in suicide prevention varies tremendously, derailing clinical practice. Key elements of CoC identified across the literature include (1) CoC across multiple levels of care, (2) the role of primary care providers and case managers in CoC of suicidal patients, (3) the importance of follow up contact with suicidal patients post-treatment, and (4) the role of national and institutional guidelines for CoC of suicidal patients. Limitations: There is a dearth of randomized controlled trials and insufficient evidence on specific populations. Conclusion CoC refers to a wide, complex concept that must be broken down into specific categories that can provide more nuanced guidance of research and clinical implications.
Collapse
Affiliation(s)
- Shay Arnon
- Baruch Ivcher School of Psychology, Reichman University, Herzliya, Israel
| | - Golan Shahar
- Department of Psychology, Ben-Gurion University of the Negev, Be'er Sheva, Israel
| | | |
Collapse
|
3
|
Elbaz-Hayoun S, Rinsky B, Hagbi-Levi S, Grunin M, Chowers I. CCR1 mediates Müller cell activation and photoreceptor cell death in macular and retinal degeneration. eLife 2023; 12:e81208. [PMID: 37903056 PMCID: PMC10615370 DOI: 10.7554/elife.81208] [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: 06/19/2022] [Accepted: 10/04/2023] [Indexed: 11/01/2023] Open
Abstract
Mononuclear cells are involved in the pathogenesis of retinal diseases, including age-related macular degeneration (AMD). Here, we examined the mechanisms that underlie macrophage-driven retinal cell death. Monocytes were extracted from patients with AMD and differentiated into macrophages (hMdɸs), which were characterized based on proteomics, gene expression, and ex vivo and in vivo properties. Using bioinformatics, we identified the signaling pathway involved in macrophage-driven retinal cell death, and we assessed the therapeutic potential of targeting this pathway. We found that M2a hMdɸs were associated with retinal cell death in retinal explants and following adoptive transfer in a photic injury model. Moreover, M2a hMdɸs express several CCRI (C-C chemokine receptor type 1) ligands. Importantly, CCR1 was upregulated in Müller cells in models of retinal injury and aging, and CCR1 expression was correlated with retinal damage. Lastly, inhibiting CCR1 reduced photic-induced retinal damage, photoreceptor cell apoptosis, and retinal inflammation. These data suggest that hMdɸs, CCR1, and Müller cells work together to drive retinal and macular degeneration, suggesting that CCR1 may serve as a target for treating these sight-threatening conditions.
Collapse
Affiliation(s)
- Sarah Elbaz-Hayoun
- Department of Ophthalmology, Hadassah Medical Center, Faculty of Medicine, The Hebrew University of JerusalemJerusalemIsrael
| | - Batya Rinsky
- Department of Ophthalmology, Hadassah Medical Center, Faculty of Medicine, The Hebrew University of JerusalemJerusalemIsrael
| | - Shira Hagbi-Levi
- Department of Ophthalmology, Hadassah Medical Center, Faculty of Medicine, The Hebrew University of JerusalemJerusalemIsrael
| | - Michelle Grunin
- Department of Ophthalmology, Hadassah Medical Center, Faculty of Medicine, The Hebrew University of JerusalemJerusalemIsrael
| | - Itay Chowers
- Department of Ophthalmology, Hadassah Medical Center, Faculty of Medicine, The Hebrew University of JerusalemJerusalemIsrael
| |
Collapse
|
4
|
Maor Y, Shinar E, Izak M, Rahav G, Brosh-Nissimov T, Kessler A, Rahimi-Levene N, Benin-Goren O, Cohen D, Zohar I, Alagem N, Castro S, Zimhony O. A Randomized Controlled Study Assessing Convalescent Immunoglobulins vs Convalescent Plasma for Hospitalized Patients With Coronavirus 2019. Clin Infect Dis 2023; 77:964-971. [PMID: 37220751 PMCID: PMC10552585 DOI: 10.1093/cid/ciad305] [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: 02/24/2023] [Revised: 05/15/2023] [Accepted: 05/18/2023] [Indexed: 05/25/2023] Open
Abstract
BACKGROUND It is unknown whether convalescent immunoglobulins (cIgGs) are better than convalescent plasma (CP) for patients with coronavirus 2019 (COVID-19). METHODS In this randomized controlled trial, we assigned high risk COVID-19 patients with ≤10 days of symptoms, to receive cIgGs or CP. The primary endpoint was improvement on day 14 according to the World Health Organization scale. Secondary endpoints were survival on day 14, and improvement, survival, and percent of ventilated patients on day 28, and treatment response in unvaccinated and vaccinated patients. RESULTS A total of 319 patients were included: 166 received cIgGs and 153 CP. Median age was 64 to 66 years. A total of 112 patients (67.5%) in the cIgG group and 103 patients (67.3%) in the CP group reached the primary endpoint. Difference between groups was 0.1 (95% confidence interval, -10.1 to 10.4; P = .026), failing to reach noninferiority. More patients receiving cIgG improved by day 28 (136 patients [81.9%] and 108 patients [70.6%], respectively; 95% confidence interval, 1.9-20.7; P < .001; for superiority P = .018). Seventeen patients in the cIgG group (10.2%) and 25 patients (16.3%) in the CP group required mechanical ventilation (P = .136). Sixteen (9.6%) and 23 (15%) patients, respectively, died (P = .172). More unvaccinated patients improved by day 28 in the cIgG group (84.1% vs 66.1%; P = .024), and survival was better in the cIgG group (89.9% vs 77.4%; P = .066). CONCLUSIONS cIgGs failed to reach the primary noninferiority endpoint on day 14 but was superior to CP on day 28. Survival and improvement by day 28 in unvaccinated patients treated with cIgGs were better. In the face of new variants, cIgGs are a viable option for treating COVID-19. TRIAL REGISTRATION NUMBER My Trials MOH_2021-01-14_009667.
Collapse
Affiliation(s)
- Yasmin Maor
- Infectious Disease Unit, Wolfson Medical Center, Holon, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Eilat Shinar
- Magen David Adom, National Blood Services, Ramat Gan, Israel
| | - Marina Izak
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Magen David Adom, National Blood Services, Ramat Gan, Israel
| | - Galia Rahav
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Infectious Disease Unit, Sheba Medical Center, Ramat Gan, Israel
| | - Tal Brosh-Nissimov
- Infectious Diseases Unit, Samson Assuta Ashdod University Hospital, Ashdod, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Be'er-Sheva, Israel
| | - Asa Kessler
- Department of Medicine, Hadassah Medical Center, Jerusalem, Israel
- Faculty of Medicine, Hebrew University and Hadassah, Jerusalem, Israel
| | | | | | - Dani Cohen
- School of Public Health, Tel Aviv University, Tel Aviv, Israel
| | - Iris Zohar
- Infectious Disease Unit, Wolfson Medical Center, Holon, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | | | | | - Oren Zimhony
- Faculty of Medicine, Hebrew University and Hadassah, Jerusalem, Israel
- Infectious Diseases Unit, Kaplan Medical Center, Rehovot, Israel
| |
Collapse
|
5
|
Yosef I, Mahata T, Goren MG, Degany OJ, Ben-Shem A, Qimron U. Highly active CRISPR-adaptation proteins revealed by a robust enrichment technology. Nucleic Acids Res 2023; 51:7552-7562. [PMID: 37326009 PMCID: PMC10415146 DOI: 10.1093/nar/gkad510] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/24/2023] [Accepted: 06/01/2023] [Indexed: 06/17/2023] Open
Abstract
Natural prokaryotic defense via the CRISPR-Cas system requires spacer integration into the CRISPR array in a process called adaptation. To search for adaptation proteins with enhanced capabilities, we established a robust perpetual DNA packaging and transfer (PeDPaT) system that uses a strain of T7 phage to package plasmids and transfer them without killing the host, and then uses a different strain of T7 phage to repeat the cycle. We used PeDPaT to identify better adaptation proteins-Cas1 and Cas2-by enriching mutants that provide higher adaptation efficiency. We identified two mutant Cas1 proteins that show up to 10-fold enhanced adaptation in vivo. In vitro, one mutant has higher integration and DNA binding activities, and another has a higher disintegration activity compared to the wild-type Cas1. Lastly, we showed that their specificity for selecting a protospacer adjacent motif is decreased. The PeDPaT technology may be used for many robust screens requiring efficient and effortless DNA transduction.
Collapse
Affiliation(s)
- Ido Yosef
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
| | - Tridib Mahata
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
| | - Moran G Goren
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
| | - Or J Degany
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
| | - Adam Ben-Shem
- Department of Integrated Structural Biology, Equipe labellisée Ligue Contre le Cancer, Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch 67404, France
| | - Udi Qimron
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
| |
Collapse
|
6
|
Tau L, Hagin D, Freund T, Halperin T, Adler A, Marom R, Ahsanov S, Matus N, Levi I, Gerber G, Lev S, Ziv-Baran T, Turner D. Humoral and Cellular Immune Responses of People Living With Human Immunodeficiency Virus After 3 Doses of Messenger RNA BNT162b2 Severe Acute Respiratory Syndrome Coronavirus 2 Vaccine: A Prospective Cohort Study. Open Forum Infect Dis 2023; 10:ofad347. [PMID: 37539062 PMCID: PMC10394980 DOI: 10.1093/ofid/ofad347] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 07/07/2023] [Indexed: 08/05/2023] Open
Abstract
Background Recent studies have shown good serological and cellular immune responses in people living with human immunodeficiency virus (PLWH) after receipt of 2 doses of messenger RNAA (mRNA) severe acute respiratory syndrome coronavirus 2 vaccine. Data are missing regarding the response after 3 vaccine doses. Methods We followed up a group of PLWH who received 3 doses of the mRNA BNT162b2 vaccine and for whom data of humoral immune response after 2 vaccine doses were available. Patients provided a blood sample 4-6 months after the booster dose. The aim of the study was to measure the serological and cellular response after the third dose and to evaluate factors associated with the vaccine response. Results Fifty patients have provided a serum sample for serological evaluation after the booster. The anti-receptor-binding domain (RBD) immunoglobulin (Ig) G titers were higher after the booster with a median delta of 3240 arbitrary units/mL. The median CD4+ T-cell count was 660/μL (interquartile range, 515-958/μL) and had no influence on the antibody level. Factors associated with lower delta included higher CD8+ T-cell count (P = .02) and longer time between the third dose and the blood test (P = .01). Higher anti-RBD IgG titer after the second vaccine (P = .03), as well as a longer interval between second and third doses (P = .031) were associated with higher delta. There was no increase in the median number of activated interferon γ+ and tumor necrosis factor α+ CD4+ T cells after the booster (n = 8). Conclusions The anti-RBD IgG level after 3 doses of mRNA BNT162b2 vaccine was higher than the level after 2 doses, suggesting additional value of the booster. Cellular response did not further increase after a booster.
Collapse
Affiliation(s)
- Luba Tau
- Crusaid Kobler AIDS Center, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
- Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - David Hagin
- Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
- Department of Allergy and Clinical Immunology, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
| | - Tal Freund
- Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
- Department of Allergy and Clinical Immunology, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
| | - Tamar Halperin
- Microbiological Laboratory, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
| | - Amos Adler
- Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
- Microbiological Laboratory, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
| | - Rotem Marom
- Microbiological Laboratory, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
| | - Svetlana Ahsanov
- Microbiological Laboratory, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
| | - Natasha Matus
- Microbiological Laboratory, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
| | - Inbar Levi
- Microbiological Laboratory, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
| | - Gal Gerber
- Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Shir Lev
- Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | | | - Dan Turner
- Crusaid Kobler AIDS Center, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
- Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| |
Collapse
|
7
|
Koren Y, Feingold Polak R, Levy-Tzedek S. Extended Interviews with Stroke Patients Over a Long-Term Rehabilitation Using Human–Robot or Human–Computer Interactions. Int J Soc Robot 2022; 14:1893-1911. [PMID: 36158255 PMCID: PMC9483483 DOI: 10.1007/s12369-022-00909-7] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/05/2022] [Indexed: 11/30/2022]
Abstract
AbstractSocially assistive robots (SARs) have been proposed to assist post-stroke patients in performing their exercise during their rehabilitation process, with the trust in the robot identified as an important factor in human–robot interaction. In the current study, we aimed to identify and characterize factors that influence post-stroke patients’ trust in a robot-operated and a computer-operated rehabilitation platform during and after a long-term experience with the platform. We conducted 29 interviews with 16 stroke patients who underwent a long-term rehabilitation process, assisted by either a SAR or a computer interface. The intervention lasted 5–7 weeks per patient, for a total of 229 sessions over 18 months. By using a qualitative research method—extended interviews “in the wild” with stroke patients, over a long-term rehabilitation process—our study reveals users’ perspectives regarding factors affecting trust in the SAR or in the computer interface during their rehabilitation process. The results support the assertion that SARs have an added value in the rehabilitative care of stroke patients; It appears that personal characteristics, such as age and gender, have an effect on the users’ acceptance of a non-human operator as a practice assistant. Our findings support the notion that SARs augment rehabilitative therapies beyond a standard computer; Importantly, patients appreciated different aspects of the non-human operator in the two groups: In the SAR group, users preferred its functional performance over its anthropomorphized social skills; In the Computer group, users highlighted its contribution to the training of their memory skills.
Collapse
Affiliation(s)
- Yaacov Koren
- Department of Sociology and Anthropology, Tel-Aviv University, Tel-Aviv, Israel
| | - Ronit Feingold Polak
- Recanati School for Community Health Professions, Department of Physical Therapy, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Shelly Levy-Tzedek
- Recanati School for Community Health Professions, Department of Physical Therapy, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Zlotowski Center for Neuroscience, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Freiburg Institute for Advanced Studies (FRIAS), University of Freiburg, Freiburg, Germany
| |
Collapse
|
8
|
Elhaik Goldman S, Moshkovits I, Shemesh A, Filiba A, Tsirulsky Y, Vronov E, Shagan M, Apte RN, Benharroch DA, Karo-Atar D, Dagan R, Munitz A, Mizrachi Nebenzahl Y, Porgador A. Natural Killer Receptor 1 Dampens the Development of Allergic Eosinophilic Airway Inflammation. PLoS One 2016; 11:e0160779. [PMID: 27580126 PMCID: PMC5007051 DOI: 10.1371/journal.pone.0160779] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 07/25/2016] [Indexed: 01/08/2023] Open
Abstract
The function of NCR1 was studied in a model of experimental asthma, classified as a type 1 hypersensitivity reaction, in mice. IgE levels were significantly increased in the serum of OVA immunized NCR1 deficient (NCR1gfp/gfp) mice in comparison to OVA immunized wild type (NCR1+/+) and adjuvant immunized mice. Histological analysis of OVA immunized NCR1gfp/gfp mice revealed no preservation of the lung structure and overwhelming peribronchial and perivascular granulocytes together with mononuclear cells infiltration. OVA immunized NCR+/+ mice demonstrated preserved lung structure and peribronchial and perivascular immune cell infiltration to a lower extent than that in NCR1gfp/gfp mice. Adjuvant immunized mice demonstrated lung structure preservation and no immune cell infiltration. OVA immunization caused an increase in PAS production independently of NCR1 presence. Bronchoalveolar lavage (BAL) revealed NCR1 dependent decreased percentages of eosinophils and increased percentages of lymphocytes and macrophages following OVA immunization. In the OVA immunized NCR1gfp/gfp mice the protein levels of eosinophils' (CCL24) and Th2 CD4+ T-cells' chemoattractants (CCL17, and CCL24) in the BAL are increased in comparison with OVA immunized NCR+/+ mice. In the presence of NCR1, OVA immunization caused an increase in NK cells numbers and decreased NCR1 ligand expression on CD11c+GR1+ cells and decreased NCR1 mRNA expression in the BAL. OVA immunization resulted in significantly increased IL-13, IL-4 and CCL17 mRNA expression in NCR1+/+ and NCR1gfp/gfp mice. IL-17 and TNFα expression increased only in OVA-immunized NCR1+/+mice. IL-6 mRNA increased only in OVA immunized NCR1gfp/gfp mice. Collectively, it is demonstrated that NCR1 dampens allergic eosinophilic airway inflammation.
Collapse
Affiliation(s)
- Shirin Elhaik Goldman
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Itay Moshkovits
- Department of Clinical Microbiology and Immunology, Sackler school of medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Avishai Shemesh
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Ayelet Filiba
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Yevgeny Tsirulsky
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Elena Vronov
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Marilou Shagan
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Ron N. Apte
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - D aniel Benharroch
- Soroka University Medical Center, Department of Pathology, Bear Sheva, Israel
| | - Danielle Karo-Atar
- Department of Clinical Microbiology and Immunology, Sackler school of medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Ron Dagan
- Faculty of Health Science, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Ariel Munitz
- Department of Clinical Microbiology and Immunology, Sackler school of medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Yaffa Mizrachi Nebenzahl
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
- Department of Clinical Microbiology and Immunology, Sackler school of medicine, Tel-Aviv University, Tel Aviv, Israel
- * E-mail: ;
| | - Angel Porgador
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
- National Institute of Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer Sheva, Israel
- * E-mail: ;
| |
Collapse
|
9
|
Baniyash M. Myeloid-derived suppressor cells as intruders and targets: clinical implications in cancer therapy. Cancer Immunol Immunother 2016; 65:857-67. [PMID: 27225641 PMCID: PMC11028840 DOI: 10.1007/s00262-016-1849-y] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [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: 10/24/2015] [Accepted: 05/16/2016] [Indexed: 02/04/2023]
Abstract
Chronic inflammation, typical of various diseases including cancer, is a "silent bomb within the body," leading to complications that are only evident in most cases upon their appearance, when disease is already deteriorated. Chronic inflammation is associated with accumulation of myeloid-derived suppressor cells (MDSCs), which lead to immunosuppression. MDSCs have numerous harmful effects as they support tumor initiation, tumor growth and spreading, which in turn, perpetuate the inflammatory and suppressive conditions, thus preventing anticancer responses. As the concept of the immune system combating many types of tumors was revived in recent years, immunotherapy has dramatically changed the view of cancer treatment, and numerous novel therapies have been developed and approved by the FDA. However, cumulative clinical data point at very limited success rates. It is most likely that the developing chronic inflammation and MDSC-induced immunosuppression interfere with responses to such treatments and hence are major obstacles in achieving higher response rates to immune-based therapies. Moreover, chemotherapies were shown to have adverse immunoregulatory effects, enhancing or decreasing MDSC levels and activity, thus affecting treatment success. Therefore, therapeutic manipulations of chronic inflammation and MDSCs during cancer development are likely to enhance efficacy of immune- and chemo-based treatments, switching chronic pro-cancer inflammatory environments to an anticancerous milieu. Based on the functional relevance of immune networking in tumors, it is critical to merge monitoring immune system biomarkers into the traditional patient's categorization and treatment regimens. This will provide new tools for clinical practice, allowing appropriate management of cancer patients toward a better-personalized medicine.
Collapse
Affiliation(s)
- Michal Baniyash
- Faculty of Medicine, Israel-Canada Medical Research Institute, The Lautenberg Center for General and Tumor Immunology, The Hebrew University, POB 12272, 91120, Jerusalem, Israel.
| |
Collapse
|