{"title":"The Immune System as Drug Target","authors":"D. Flower","doi":"10.4137/III.S12145","DOIUrl":"https://doi.org/10.4137/III.S12145","url":null,"abstract":"The immune system is perhaps the largest yet most diffuse and distributed somatic system in vertebrates. It plays vital roles in fighting infection and in the homeostatic control of chronic disease. As such, the immune system in both pathological and healthy states is a prime target for therapeutic interventions by drugs–-both small-molecule and biologic. Comprising both the innate and adaptive immune systems, human immunity is awash with potential unexploited molecular targets. Key examples include the pattern recognition receptors of the innate immune system and the major histocompatibility complex of the adaptive immune system. Moreover, the immune system is also the source of many current and, hopefully, future drugs, of which the prime example is the monoclonal antibody, the most exciting and profitable type of present-day drug moiety. This brief review explores the identity and synergies of the hierarchy of drug targets represented by the human immune system, with particular emphasis on the emerging paradigm of systems pharmacology.","PeriodicalId":73345,"journal":{"name":"Immunology and immunogenetics insights","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4137/III.S12145","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70703772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Sequence of Rabbit (Oryctolagus Cuniculus) DNA from the OryCun2.0 Donor does not Confirm a Frameshift in Exon 2 of IL4","authors":"R. Mage, M. Mage","doi":"10.4137/III.S9557","DOIUrl":"https://doi.org/10.4137/III.S9557","url":null,"abstract":"This note follows up on an observation concerning a possible frameshift in the DNA sequence of exon 2 of rabbit interleukin 4 (IL4) made in a comparative study of the rabbit Th2 cytokine region sequences from two different rabbits. One was from the tuberculosis-susceptible Thorbecke strain, whose whole genome was sequenced at Broad Institute (OryCun2.0), and the other a normal NZW rabbit studied as part of the ENCODE project. If present, a frameshift could have resulted in exon skipping and production of IL4δ2 protein. We resequenced DNAs of the Thorbecke OryCun2.0 donor rabbit, another rabbit of the same strain, and a third rabbit of the inbred B/J strain in the region in question. All three had sequences identical to the normal NZW in the ENCODE ENm002 assembly in that region and hence no frameshift. The sequence information was submitted to GenBank and assigned accession numbers JQ687218 and JX073284.","PeriodicalId":73345,"journal":{"name":"Immunology and immunogenetics insights","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70704489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Bioinformatics-Based Predictions of Peptide Binding to Disease-Associated HLA Proteins Suggest Explanation for Shared Autoimmunity","authors":"J. Glutting, P. Reche, M. Fridkis-Hareli","doi":"10.4137/III.S6558","DOIUrl":"https://doi.org/10.4137/III.S6558","url":null,"abstract":"Aim This study was designed to examine the immunogenetic basis for shared autoimmunity, resulting in autoantigen presentation that leads to the production of two or more disease-specific autoantibodies. Methods A bioinformatics approach based on peptide binding predictions to disease-associated HLA determinants has been developed and tested here using 11 disease associations between autoimmune systemic and mucocutaneous blistering disorders. Various HLAs associated with antigens within a given “disease model” (set of HLA class II and protein sequences known to be associated with a specific autoimmune disease) were tested and ranked against the antigenic proteins, first with proteins they are known to associate with and then with proteins known to be implicated in a second disease model. In every case binding predictions were compared for different proteins binding to the same HLA. Subsequently, disease-related autoantigens have been tested for their binding affinity against each disease-specific HLA class II protein. Results For a single HLA haplotype, several binders have been generated from a related autoantigen with the variable binding score. In most cases, the binding score corresponding to the interactions between the autoantigen-derived epitope and the HLA associated with one disease was similar or lower than the interactions between the epitope from proteins associated with the second disease and the same HLA. Notably, there was no compelling promiscuity in peptide binding to each of the HLA molecules, in spite of the promiscuous nature of HLA class II binding. Conclusions The data suggest that, in susceptible individuals, shared autoimmunity might be initiated by two types of HLA/peptide interaction; first between an autoantigen-derived epitope and its disease-associated HLA molecules, and second, between a different peptide of the same autoantigen and HLA proteins specific for the second disease.","PeriodicalId":73345,"journal":{"name":"Immunology and immunogenetics insights","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4137/III.S6558","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70704405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E Michael Gertz, Richa Agarwala, Rose G Mage, Alejandro A Schäffer
{"title":"Comparative analysis of genome sequences of the Th2 cytokine region of rabbit (Oryctolagus cuniculus) with those of nine different species.","authors":"E Michael Gertz, Richa Agarwala, Rose G Mage, Alejandro A Schäffer","doi":"10.4137/III.S7236","DOIUrl":"https://doi.org/10.4137/III.S7236","url":null,"abstract":"<p><p>The regions encoding the coordinately regulated Th2 cytokines IL5, IL4 and IL13 are located on chromosomes 5 of man and 11 of mouse. They have been intensively studied because these interleukins have protective roles in helminth infections, but may lead to detrimental effects such as allergy, asthma, and fibrosis in lung and liver. We added to previous studies by comparing sequences of syntenic regions on chromosome 3 of the rabbit (Oryctolagus cuniculus) genome OryCun 2.0 assembly from a tuberculosis-susceptible strain, with the corresponding region of ENCODE ENm002 from a normal rabbit as well as with 9 other mammalian species. We searched for rabbit transcription factor binding sites in putative promoter and other non-coding regions of IL5, RAD50, IL13 and IL4. Although we identified several differences between the two donor rabbits in coding and non-coding regions of potential functional significance, confirmation awaits additional sequencing of other rabbits.</p>","PeriodicalId":73345,"journal":{"name":"Immunology and immunogenetics insights","volume":"3 ","pages":"59-82"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4137/III.S7236","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9605681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Isozaki, Michihito Sato, R. Takahashi, K. Wakabayashi, T. Odai, N. Yajima, Y. Miwa, Masakazu Tezuka, T. Kasama
{"title":"Cytokine-mediated Regulation of CX3CL1 in Osteoblasts from Patients with Rheumatoid Arthritis","authors":"T. Isozaki, Michihito Sato, R. Takahashi, K. Wakabayashi, T. Odai, N. Yajima, Y. Miwa, Masakazu Tezuka, T. Kasama","doi":"10.4137/III.S4970","DOIUrl":"https://doi.org/10.4137/III.S4970","url":null,"abstract":"Introduction CX3CL1 (fractalkine), a membrane-bound chemokine that induces both the adhesion and migration of leukocytes, is involved in the recruitment of cells to tissues undergoing inflammatory responses. To explore the regulation of CX3CL1 in inflammatory bone diseases, we examined CX3CL1 expression in osteoblasts. Methods Human osteoblasts isolated from the femora of rheumatoid arthritis patients were incubated in the presence or absence of various inflammatory stimuli. Culture supernatants were collected, and soluble CX3CL1 levels were determined with an enzyme-linked immunosorbent assay (ELISA). The expression of CX3CL1 mRNA transcripts in osteoblasts was examined using the quantitative TaqMan real-time polymerase chain reaction. Results The combination of tumor necrosis factor (TNF)-α and interferon (IFN)-γ induced dramatic increases in levels of both soluble CX3CL1 protein and mRNA transcripts. CX3CL1 expression in osteoblasts was decreased by the addition of interleukin(IL)-4 or IL-17 but was increased when stimulation by IFN-γ and IL-17 was supplemented with IL-1β In addition, expression was decreased when TNF-α was added. Conclusions Multiple cytokines, including IL-17, are able to either increase or decrease the expression of CX3CL1 by human osteoblasts.","PeriodicalId":73345,"journal":{"name":"Immunology and immunogenetics insights","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4137/III.S4970","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70704507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. N. E. Brito, B. Cortéz, GM Machado-Santelli, P. Xander, B. De Lorenzo, H. Oliveira, F. Thies, E.S. Kioshima, J. Maricato, J. Lopes, M. Mariano
{"title":"In Vitro and In Vivo Phagocytic Ability of Mouse B-1 Cells","authors":"R. N. E. Brito, B. Cortéz, GM Machado-Santelli, P. Xander, B. De Lorenzo, H. Oliveira, F. Thies, E.S. Kioshima, J. Maricato, J. Lopes, M. Mariano","doi":"10.4137/III.S6156","DOIUrl":"https://doi.org/10.4137/III.S6156","url":null,"abstract":"B-1 cells are a peculiar subpopulation of B cells found in the peritoneal and pleural cavities in mice. These cells are typically IgM+ and CD11b+. B-1 cells are able to migrate from the peritoneal cavity to non-specific inflammatory sites in mice. In addition, they can differentiate into mononuclear phagocyte-like cells in vitro; however, it is still unknown whether B-1 cells are capable of performing phagocytosis in vivo. Here we further characterized B-1 cells as phagocytes in vitro, and we investigated their ability to phagocytose apoptotic cells and bacteria in vivo. Our results demonstrate that B-1 phagocytes are able to uptake apoptotic thymocytes and Escherichia coli bacteria, both in vitro and in vivo. These findings indicate that along with macrophages, B-1 phagocytic cells might play a role in fundamental processes such as tissue remodeling, resolution of inflammation and pathogen clearance.","PeriodicalId":73345,"journal":{"name":"Immunology and immunogenetics insights","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4137/III.S6156","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70704204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Relationship between Celiac Disease Markers and Gastrointestinal Disease in Children with Autism","authors":"A.J. Russo","doi":"10.4137/III.S3662","DOIUrl":"https://doi.org/10.4137/III.S3662","url":null,"abstract":"Aim This study was designed to determine if there is a relationship between celiac disease (CD) and the presence of gastrointestinal disease (GI) disease in children with autism. Subjects and Methods One hundred twenty-two children were tested for IgG and IgA anti-transglutaminase autoantibodies (55 autistic children with GI disease, 28 non autistic children with no GI disease, 30 autistic children with no GI disease, and 9 non autistic children with GI Disease). We also compared the presence/level of these autoantibodies to presence of anti-neutrophil cytoplasmic antibodies (ANCA) and level of Alpha-1 Antitrypsin (AAT). Results We did not find a significant difference in the level of anti-transglutaminase IgG or IgA in autistic children with GI disease compared to controls. However, we found a significant relationship between the presence of ANCA and low-level IgG anti-transglutaminase IgG in children with autism and GI disease. Discussion Although there appears to be no relationship between these celiac disease markers and the presence of GI disease in autistic children, these results suggest a possible association between sub diagnostic levels of anti-transglutaminase IgG and the presence of ANCA, and therefore, supports the hypothesis that there is a generalized autoimmune dysfunction in autistic children with GI disease.","PeriodicalId":73345,"journal":{"name":"Immunology and immunogenetics insights","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4137/III.S3662","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70703709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Chronic Periodontitis as a Risk Marker for Systemic Diseases with Reference to Cardiometabolic Disorders: Common Pathways in their Progression","authors":"M. Soory","doi":"10.4137/III.S5795","DOIUrl":"https://doi.org/10.4137/III.S5795","url":null,"abstract":"Periodontitis, an inflammatory condition of the supporting structures of teeth resulting from dental plaque biofilm attached to tooth surfaces is potentially an important nidus of systemic inflammation and its sequelae. Relevant risk markers common to periodontitis co-existing with coronary heart disease and diabetes mellitus play an important role in their pathogeneses and abate in response to treatment. An over-exuberant host-response to periodontal pathogen- mediated inflammation, triggers a cycle of events which is not dissimilar to an autoimmune response in a cohort of susceptible individuals. Some variation in documented findings regarding correlations with co-morbidities and periodontitis could be explained by the lack of uniformity in studies with regard to stipulation of periodontal inflammatory status in the context of risk factors examined. There are several genetic and environmental factors which influence the progression of inflammatory periodontitis in response to plaque biofilm, also relevant to associated cardiometabolic disorders in the same subject. Some common mechanisms in the pathogeneses of periodontitis and cardiometabolic disorders based on regulation of inflammation are addressed in this review. There is some evidence of an improved systemic inflammatory profile in response to periodontal treatment which emphasizes the importance of periodontal management for systemic health in relevant cases.","PeriodicalId":73345,"journal":{"name":"Immunology and immunogenetics insights","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70704146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sody M Munsaka, Melissa Agsalda, David Troelstrup, Ningjie Hu, Qigui Yu, Bruce Shiramizu
{"title":"Characteristics of Activated Monocyte Phenotype Support R5-Tropic Human Immunodeficiency Virus.","authors":"Sody M Munsaka, Melissa Agsalda, David Troelstrup, Ningjie Hu, Qigui Yu, Bruce Shiramizu","doi":"10.4137/iii.s2011","DOIUrl":"https://doi.org/10.4137/iii.s2011","url":null,"abstract":"<p><p>BACKGROUND: Microbial translocation has been recognized as an important factor in monocyte activation and contributing to AIDS pathogenesis with elevated plasma lipopolysaccharide (LPS) levels, as a marker for microbial translocation, seen in advanced HIV disease. Therefore, the current study was undertaken to assess monocyte activation in vitro by LPS and to determine its impact on monocyte phenotype. METHODS: Monocytes from non-HIV-infected donors were analyzed for CD14, CD16, CD69, TNFα, and CCR5 by flow cytometry pre- and post-stimulation with LPS. In-vitro cultures were then set up to expose non-activated and activated monocytes to R5-, X4-, and dual (R5/X4)-tropic viruses; and the amount of HIV present on the cells was assayed. RESULTS: Non-HIV-infected monocytes, after LPS stimulation, were confirmed to have an activated phenotype with increase in CD16 and CD69 surface expressions (p<0.05). The activation phenotype was supported by increase in TNFα production, p<0.05. The activated monocytes had increased surface CCR5 (from 21% to 98%; p=0.05); and were found to have more R5-tropic virus than non-activated monocytes (p<0.05). CONCLUSIONS: Following activation by LPS, non-HIV-infected monocytes were found to have increase in surface CCR5. These activated monocytes, when exposed to R5-tropic virus, were found to have more virus compared to non-activated monocytes. The significance of the findings could lie in explaining how microbial translocation plays a role in HIV progression; and possibly promoting CCR5-directed strategies in treating HIV.</p>","PeriodicalId":73345,"journal":{"name":"Immunology and immunogenetics insights","volume":"1 ","pages":"15-20"},"PeriodicalIF":0.0,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4137/iii.s2011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"28583483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}