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https://www.readbyqxmd.com/read/28635624/effects-of-type-1-diabetes-risk-alleles-on-immune-cell-gene-expression
#1
REVIEW
Ramesh Ram, Grant Morahan
Genetic studies have identified 61 variants associated with the risk of developing Type 1 Diabetes (T1D). The functions of most of the non-HLA (Human Leukocyte Antigen) genetic variants remain unknown. We found that only 16 of these risk variants could potentially be linked to a protein-coding change. Therefore, we investigated whether these variants affected susceptibility by regulating changes in gene expression. To do so, we examined whole transcriptome profiles of 600 samples from the Type 1 Diabetes Genetics Consortium (T1DGC)...
June 21, 2017: Genes
https://www.readbyqxmd.com/read/28634571/current-immunotherapeutic-strategies-to-enhance-oncolytic-virotherapy
#2
REVIEW
Daniel E Meyers, Amanda A Wang, Chandini M Thirukkumaran, Don G Morris
Oncolytic viruses (OV) represent a promising strategy to augment the spectrum of cancer therapeutics. For efficacy, they rely on two general mechanisms: tumor-specific infection/cell-killing, followed by subsequent activation of the host's adaptive immune response. Numerous OV genera have been utilized in clinical trials, ultimately culminating in the 2015 Food and Drug Administration approval of a genetically engineered herpes virus, Talminogene laherparepvec (T-VEC). It is generally accepted that OV as monotherapy have only modest clinical efficacy...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28633756/immunotherapy-the-wave-of-the-future-in-bladder-cancer
#3
Daniel P Petrylak
Urothelial cell carcinoma (UC) is one of the most common cancers and one of the most deadly. Metastatic UC is particularly hard to treat, because it is typically diagnosed when patients are elderly and have medical comorbidities. Many patients with metastatic UC are unable to receive cisplatin-based chemotherapy, due to older age at diagnosis and comorbidities, and even when platinum chemotherapy can be administered, it has limited success in prolonging survival. Recently, improved understanding of molecular targets and immunologic characteristics of urothelial tumor cells has resulted in new therapeutic approaches that may help optimize first- and second-line therapy...
June 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28631918/-using-of-cell-biocomposite-material-in-tissue-engineering-of-the-urinary-bladder
#4
P V Glybochko, Yu V Olefir, Yu G Alyaev, D V Butnaru, E A Bezrukov, A A Chaplenko, T M Zharikova
In a systematic review, to present an overview of the current situation in the field of tissue engineering of urinary bladder related to the use of cell lines pre-cultured on matrices. The selection of eligible publications was conducted according to the method described in the article Glybochko P.V. et al. "Tissue engineering of urinary bladder using acellular matrix." At the final stage, studies investigating the application of matrices with human and animal cell lines were analyzed. Contemporary approaches to using cell-based tissue engineering of the bladder were analyzed, including the formation of 3D structures from several types of cells, cell layers and genetic modification of injected cells...
June 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28631636/profiling-of-peripheral-t-cell-lymphomas-in-kerala-south-india-a-5-year-study
#5
Rekha A Nair, Jayasudha Arundhathi Vasudevan, Priya Mary Jacob, Renu Sukumaran
BACKGROUND: Peripheral T-cell lymphomas (PTCLs) are non-Hodgkin's lymphomas (NHLs) with considerable variation in incidence across the world. They show a wide variety of clinicopathological features and generally associated with poor clinical outcome. Lymphoma data from different geographic regions will definitely aid in routine clinical practice and research work. PTCLs are reported with a higher frequency in Asia as compared to Western countries. OBJECTIVE: The objective of this study was to analyze the frequency and distribution of PTCLs diagnosed in a tertiary care cancer center in Kerala...
April 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28631608/one-year-in-review-2017-pathogenesis-of-rheumatoid-arthritis
#6
Francesca Angelotti, Alice Parma, Giacomo Cafaro, Riccardo Capecchi, Alessia Alunno, Ilaria Puxeddu
Rheumatoid arthritis (RA) is a chronic inflammatory autoimmune disease influenced by both genetic and environmental factors. It has been postulated that a high-risk genetic background, in combination with epigenetic marks and environmental exposures, leads to a cascade of events inducing synovitis and consequent destructive arthritis. The clinical picture of joint involvement in RA is the result of chronic inflammation of the synovium, characterised by interactions of resident cells such as fibroblast-like synoviocytes (FLS) with cells of the innate (e...
May 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28631311/the-il-10-stat3-axis-contributions-to-immune-tolerance-by-thymus-and-peripherally-derived-regulatory-t-cells
#7
REVIEW
Klaus G Schmetterer, Winfried F Pickl
The signal transducer and activator of transcription (STAT) proteins are important mediators for the integration of extrinsic signals provided by cytokines and hormones and thereby adapt cellular processes to their surroundings. In the past decade, the involvement of STAT3 in the regulation of T-cell responses has become a topic of increasing interest. STAT3 is activated in response to multiple cytokines, many of which have been shown to influence T-cell responses. Interestingly, many of these factors have been described with apparent opposing roles, such as the highly pro-inflammatory potency of IL-6 and the anti-inflammatory properties of IL-10, thus raising the possibility that STAT3 signaling may fulfill diverse roles in CD4(+) T-cells...
June 20, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28631096/a-case-of-nivolumab-related-cholangitis-and-literature-review-how-to-look-for-the-right-tools-for-a-correct-diagnosis-of-this-rare-immune-related-adverse-event
#8
Francesco Gelsomino, Giovanni Vitale, Andrea Ardizzoni
Anti-programmed cell death-1 (PD-1) monoclonal antibodies, such as nivolumab, used for the treatment of several tumors, can trigger effector T-cells against tumor- and self-antigens, leading to the occurrence of different immune-related adverse events. Among them, liver injuries are rare and usually transient. To date, only four cases of immune-related cholangitis in non-small cell lung cancer (NSCLC) patients have been described during nivolumab treatment. Here, we describe laboratory tests, imaging and liver biopsy features that confirm this diagnosis as opposed to other forms of autoimmune liver disease; nevertheless, we also provide evidence of the presence of different clinical-pathological patterns of immune-related cholangitis...
June 20, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28630157/pore-formation-by-dimeric-bak-and-bax-an-unusual-pore
#9
REVIEW
Rachel T Uren, Sweta Iyer, Ruth M Kluck
Apoptotic cell death via the mitochondrial pathway occurs in all vertebrate cells and requires the formation of pores in the mitochondrial outer membrane. Two Bcl-2 protein family members, Bak and Bax, form these pores during apoptosis, and how they do so has been investigated for the last two decades. Many of the conformation changes that occur during their transition to pore-forming proteins have now been delineated. Notably, biochemical, biophysical and structural studies indicate that symmetric homodimers are the basic unit of pore formation...
August 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28630089/dynamic-balance-between-master-transcription-factors-determines-the-fates-and-functions-of-cd4-t-cell-and-innate-lymphoid-cell-subsets
#10
REVIEW
Difeng Fang, Jinfang Zhu
CD4 T cells, including T regulatory cells (Treg cells) and effector T helper cells (Th cells), and recently identified innate lymphoid cells (ILCs) play important roles in host defense and inflammation. Both CD4 T cells and ILCs can be classified into distinct lineages based on their functions and the expression of lineage-specific genes, including those encoding effector cytokines, cell surface markers, and key transcription factors. It was first recognized that each lineage expresses a specific master transcription factor and the expression of these factors is mutually exclusive because of cross-regulation among these factors...
June 19, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28629762/targeting-the-tumor-and-its-associated-stroma-one-and-one-can-make-three-in-adoptive-t-cell-therapy-of-solid-tumors
#11
Anna Mondino, Gerlanda Vella, Laura Icardi
Adoptive T cell therapy (ACT) has become a promising immunotherapeutic option for cancer patients. The proof for ACT therapeutic efficacy was first obtained with allogenic T cells and then reproduced with T cells isolated from patients' tumor samples (i.e. tumor-infiltrating lymphocytes). It is now clear that specificity of ACT products can be educated by genetically engineering T cells with classical T Cell Receptors (TCR) or chimeric antigen receptors (CAR). To date a poor accessibility of the tumor mass and a hostile microenvironment, influenced by genetic and epigenetic instability, mainly limit ACT therapeutic efficacy in the case of solid tumors...
June 15, 2017: Cytokine & Growth Factor Reviews
https://www.readbyqxmd.com/read/28629761/cytokines-for-the-induction-of-antitumor-effectors-the-paradigm-of-cytokine-induced-killer-cik-cells
#12
Elisa Cappuzzello, Roberta Sommaggio, Paola Zanovello, Antonio Rosato
Cytokine-Induced killer (CIK) cells are raising growing interest in cellular antitumor therapy, as they can be easily expanded with a straightforward and inexpensive protocol, and are safe requiring only GMP-grade cytokines to obtain very high amounts of cytotoxic cells. CIK cells do not need antigen-specific stimuli to be activated and proliferate, as they recognize and destroy tumor cells in an HLA-independent fashion through the engagement of NKG2D. In several preclinical studies and clinical trials, CIK cells showed a reduced alloreactivity compared to conventional T cells, even when challenged across HLA-barriers; only in a few patients, a mild GVHD occurred after treatment with allogeneic CIK cells...
June 3, 2017: Cytokine & Growth Factor Reviews
https://www.readbyqxmd.com/read/28629381/the-era-of-bioengineering-how-will-this-affect-the-next-generation-of-cancer-immunotherapy
#13
REVIEW
Michele Graciotti, Cristiana Berti, Harm-Anton Klok, Lana Kandalaft
BACKGROUND: Immunotherapy consists of activating the patient's immune system to fight cancer and has the great potential of preventing future relapses thanks to immunological memory. A great variety of strategies have emerged to harness the immune system against tumors, from the administration of immunomodulatory agents that activate immune cells, to therapeutic vaccines or infusion of previously activated cancer-specific T cells. However, despite great recent progress many difficulties still remain, which prevent the widespread use of immunotherapy...
June 19, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28629173/autophagic-mechanism-in-anti-cancer-immunity-its-pros-and-cons-for-cancer-therapy
#14
REVIEW
Ying-Ying Li, Lynn G Feun, Angkana Thongkum, Chiao-Hui Tu, Shu-Mei Chen, Medhi Wangpaichitr, Chunjing Wu, Macus T Kuo, Niramol Savaraj
Autophagy, a self-eating machinery, has been reported as an adaptive response to maintain metabolic homeostasis when cancer cells encounter stress. It has been appreciated that autophagy acts as a double-edge sword to decide the fate of cancer cells upon stress factors, molecular subtypes, and microenvironmental conditions. Currently, the majority of evidence support that autophagy in cancer cells is a vital mechanism bringing on resistance to current and prospective treatments, yet whether autophagy affects the anticancer immune response remains unclear and controversial...
June 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28628852/skin-regeneration-in-three-dimensions-current-status-challenges-and-opportunities
#15
REVIEW
Ahmed T El-Serafi, Ibrahim T El-Serafi, Moustafa Elmasry, Ingrid Steinvall, Folke Sjöberg
Skin regeneration is a life-saving need for many patients, whom list is stretched from burn victims to motor-car accidents. Spraying cells, either keratinocytes or stem cells, were associated with variable results and, in many cases, unfavorable outcomes. As the spatial configuration of the skin is distinctive, many trials investigated the bio-printing or the construction of three dimensional skin models where different layers of the skin were preserved. Although some of these models showed the histological configuration of the skin, their acceptance by the wound was questionable as a consequence of delayed vascularization...
June 15, 2017: Differentiation; Research in Biological Diversity
https://www.readbyqxmd.com/read/28628194/signals-that-drive-t-follicular-helper-cell-formation
#16
REVIEW
Louise M C Webb, Michelle A Linterman
T follicular helper (TFH) cells are a distinct type of CD4+ T cell specialized in providing help to B cells during the germinal center (GC) reaction. As such, they are critical determinants of the quality of an antibody response following antigen challenge. Excessive production of TFH cells can result in autoimmunity whilst too few can result in inadequate protection from infection. Hence, their differentiation and maintenance must be tightly regulated to ensure appropriate, but limited, help to B cells. Unlike the majority of other CD4+ T cell subsets, TFH cell differentiation occurs in three phases defined by their anatomical location...
June 19, 2017: Immunology
https://www.readbyqxmd.com/read/28628043/immunotherapy-for-transplantation-associated-viral-infections
#17
Claire Roddie, Karl S Peggs
Cytomegalovirus (CMV) and Epstein-Barr virus (EBV) infections following allogeneic hematopoietic stem cell transplantation (HSCT) are a major cause of morbidity and mortality. Early clinical trials demonstrate that adoptive transfer of donor-derived virus-specific T cells to restore virus-specific immunity is an effective strategy to control CMV and EBV infection after HSCT, conferring protection in 70%-90% of patients. The field has evolved rapidly to develop solutions to some of the manufacturing challenges identified in early clinical studies, such as prolonged in vitro culture, optimization of the purity of the virus-specific T cell product, the potential limitations of targeting a single viral antigen, and how to manage the patient with a virus-naive donor...
June 19, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28627735/genetic-alterations-in-adult-t-cell-leukemia-lymphoma
#18
REVIEW
Yasunori Kogure, Keisuke Kataoka
Adult T-cell leukemia/lymphoma (ATL) is a peripheral T-cell neoplasm with a dismal prognosis, caused by human T-cell leukemia virus type-1 (HTLV-1) retrovirus. A long latency period from HTLV-1 infection to ATL onset suggests that not only HTLV-1 proteins, such as Tax and HBZ, but also additional genetic and/or epigenetic events are required for ATL development. Although many studies have demonstrated the biological functions of viral genes, alterations of cellular genes associated with ATL have not been fully investigated...
June 19, 2017: Cancer Science
https://www.readbyqxmd.com/read/28627729/the-immune-deficiency-of-chromosome-22q11-2-deletion-syndrome
#19
Megan Morsheimer, Terri F Brown Whitehorn, Jennifer Heimall, Kathleen E Sullivan
The syndrome originally described by Dr. Angelo DiGeorge had immunodeficiency as a central component. When a 22q11.2 deletion was identified as the cause in the majority of patients with DiGeorge syndrome, the clinical features of 22q11.2 deletion syndrome became so expansive that the immunodeficiency became less prominent in our thinking about the syndrome. This review will focus on the immune system and the changes in our understanding over the past 50 years. Initially characterized as a pure defect in T cell development, we now appreciate that many of the clinical features related to the immunodeficiency are well downstream of the limitation imposed by a small thymus...
June 19, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28627118/optical-microresonators-for-sensing-and-transduction-a-materials-perspective
#20
REVIEW
Kevin D Heylman, Kassandra A Knapper, Erik H Horak, Morgan T Rea, Sudheer K Vanga, Randall H Goldsmith
Optical microresonators confine light to a particular microscale trajectory, are exquisitely sensitive to their microenvironment, and offer convenient readout of their optical properties. Taken together, this is an immensely attractive combination that makes optical microresonators highly effective as sensors and transducers. Meanwhile, advances in material science, fabrication techniques, and photonic sensing strategies endow optical microresonators with new functionalities, unique transduction mechanisms, and in some cases, unparalleled sensitivities...
June 19, 2017: Advanced Materials
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