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Immunological Investigations

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https://www.readbyqxmd.com/read/28972431/inherent-differences-in-keratinocyte-function-in-hidradenitis-suppurativa-evidence-for-the-role-of-il-22-in-disease-pathogenesis
#1
Derek Jones, Anirban Banerjee, Peter Z Berger, Alexandra Gross, Sean McNish, Richard Amdur, Victoria K Shanmugam
Hidradenitis suppurativa (HS) is a chronic, recurrent, inflammatory disease of apocrine gland-bearing skin which affects approximately 1-4% of the population. Defective keratinocyte function has been postulated to play a role in HS pathogenesis. Using an in vitro scratch assay, differences between normal, HS, and chronic wound (CW) keratinocytes were evaluated. Normal keratinocytes exhibited faster scratch closure than HS or CW, with normal samples showing 93.8% closure at 96 hours compared to 80.8% in HS (p = 0...
October 3, 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28891726/nk-cell-effector-functions-regulation-by-modulating-ntreg-cell-population-during-progressive-growth-of-dalton-s-lymphoma-in-mice
#2
Munendra Singh Tomar, Sanjay Kumar, Sanjay Kumar, Pramod Kumar Gautam, Rishi Kant Singh, Praveen Kumar Verma, Surya Pratap Singh, Arbind Acharya
Natural killer (NK) cells are large granular lymphocytes of the innate immune system and play a pivotal role against virus-infected cells, microbial pathogens, and tumor cells. NK cells secrete several cytokine,s but IFN-γ secreted by NK cells play a vital role in the activation of the innate and adaptive immune systems. But during any infection or tumor burden, functional activity of NK cells is downregulated significantly by nTreg cells. It is also found that during tumor progression, the number of nTreg cells increases as a result; it effectively suppresses the antitumor activity of NK cells...
September 11, 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28891721/the-regions-on-the-light-chain-of-botulinum-neurotoxin-type-a-recognized-by-t-cells-from-toxin-treated-cervical-dystonia-patients-the-complete-human-t-cell-recognition-map-of-the-toxin-molecule
#3
Minako Oshima, Philip Deitiker, Joseph Jankovic, M Zouhair Atassi
We have recently mapped the in vitro proliferative responses of T cells from botulinum neurotoxin type A (BoNT/A)-treated cervical dystonia (CD) patients with overlapping peptides encompassing BoNT/A heavy chain (residues 449-1296). In the present study, we determined the recognition profiles, by peripheral blood lymphocytes (PBL) from the same set of patients, of BoNT/A light (L) chain (residues 1-453) by using 32 synthetic overlapping peptides that encompassed the entire L chain. Profiles of the T-cell responses (expressed in stimulation index, SI; Z score based on transformed SI) to the peptides varied among the patients...
September 11, 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28872930/inconsistence-between-number-and-function-of-autoreactive-t-cells-in-the-course-of-experimental-autoimmune-encephalomyelitis
#4
Xin Wan, Weiya Pei, Yiming Zhang, Lei Zhang, Khawar Ali Shahzad, Tao Xu, Chuanlai Shen
BACKGROUND: Mouse experimental autoimmune encephalomyelitis (EAE) is widely used model of multiple sclerosis (MS). The role of autoreactive CD4(+) and CD8(+) T cells in the development of mouse EAE has been demonstrated. However, little information is available about the relation between the frequency and reactivity of myelin antigen-reactive CD4(+) and CD8(+) T cells in secondary lymphoid organs and their relevance with the inflammation and pathological lesion of CNS during the course of EAE mouse model...
September 5, 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28872977/growth-differentiation-factor-15-gdf-15-level-and-relation-to-clinical-manifestations-in-egyptian-systemic-sclerosis-patients-preliminary-data
#5
Sherif M Gamal, Fatema T Elgengehy, Asmaa Kamal, Samah A El Bakry, Elham Shabaan, Aliaa Elgendy, Iman H Bassyouni
AIM OF THE WORK: This study aims to assess Growth differentiation factor-15 (GDF-15) level in Scleroderma patients and its relation to disease manifestations. PATIENTS AND METHODS: This study included 55 scleroderma patients and 40 age and sex matched healthy volunteers. All patients were subjected to full history taking, thorough clinical examination, and laboratory investigations. GDF-15 serum levels were analyzed in patients and controls using human GDF-15 immunoassay Quantikine ELISA kit...
October 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28872976/serum-il-6-and-il-8-correlate-with-prognostic-factors-in-ovarian-cancer
#6
Marcela Moisés Maluf Sanguinete, Paula Honório De Oliveira, Agrimaldo Martins-Filho, Douglas Côbo Micheli, Beatriz Martins Tavares-Murta, Eddie Fernando Candido Murta, Rosekeila Simões Nomelini
The aim of the study was to correlate serum levels of IL-2, IL-5, IL-6, IL-8, IL-10, and TNF-α with clinical, laboratory, and pathological prognostic factors in patients with primary ovarian malignancy. Patients treated at the Pelvic Mass Ambulatory of the Discipline of Gynecology and Obstetrics/Oncology Research Institute (IPON) of the UFTM with confirmed diagnosis of malignant ovarian neoplasia (n = 26) were evaluated. Serum collection was performed preoperatively for the determination of tumor markers...
October 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28872975/characterization-of-inflammasome-components-in-pig-intestine-and-analysis-of-the-influence-of-probiotic-enterococcus-faecium-during-an-escherichia-coli-challenge
#7
Martina Kern, Jörg R Aschenbach, Karsten Tedin, Robert Pieper, Henriette Loss, Ulrike Lodemann
The aim of the present study was to investigate systematically the expression of inflammasome components in pig intestine and to analyze the influence of age and long-term supplementation with the probiotic Enterococcus faecium NCIMB 10415 (E. faecium). In order to examine probiotic effects on the inflammasomes during a challenge with pathogens, enterotoxigenic Escherichia coli (ETEC) and E. faecium were directly added to pig jejunum in Ussing chambers. The mRNA expression of inflammasome components generally decreased in an oral-aboral direction in intestinal tissues...
October 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28872974/the-postoperative-immunosuppressive-phenotypes-of-peripheral-t-helper-cells-are-associated-with-poor-prognosis-of-breast-cancer-patients
#8
Ganglan Fu, Liping Miao, Meng Wang, MingYan Guo, Chengli Wang, Fengtao Ji, Minghui Cao
PURPOSE: T helper cells play essential roles in anti-tumor immune response. However, the postoperative changes of peripheral T cell subsets and their clinical significance in breast cancer patients remain largely unknown. METHODS: We evaluated the perioperative changes of T lymphocyte subsets in invasive breast cancer (IBC) patients and breast fibroadenoma (BF) patients preoperatively (preop) and 6, 24, 72 hours postoperatively (POH6, POH24, and POH72). Proportions of CD3, CD4, CD8, T helper (Th) 1, Th2, Th17 cells, regulatory T cells (Treg), and CD4(+)/CD8(+), Th1/Th2 ratio were detected by flow cytometry...
October 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28872973/splenectomy-induced-leukocytosis-promotes-intratumoral-accumulation-of-myeloid-derived-suppressor-cells-angiogenesis-and-metastasis
#9
Murat Sevmis, Digdem Yoyen-Ermis, Cisel Aydin, Elif Bilgic, Petek Korkusuz, Aysegul Uner, Erhan Hamaloglu, Gunes Esendagli, Derya Karakoc
BACKGROUND: Enlargement of the spleen is commonly observed in animal models of cancer. Here, in a breast cancer model, it was aimed to determine the effect of splenectomy on circulating and tumor-infiltrating myeloid-derived suppressor cells (MDSCs), tumor angiogenesis, and metastasis. METHODS: Mice were inoculated with 4T1 breast cancer cells and underwent splenectomy or sham laparotomy. Tumor growth and survival of animals were followed. Macroscopic and histopathological analyses were performed to determine splenomegaly and metastasis...
October 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28872972/expression-and-significance-of-th17-and-treg-cells-in-pulmonary-infections-with-gram-negative-bacteria
#10
Ying Liu, Jia-Kui Sun, Xiang Qi, Yong-Ming Chen, Jing Li, Shang-Yu Chen, Han Liu
The aim of this study was to investigate the expression and significance of T helper type 17 (Th17) and regulatory T (Treg) cells in severe pulmonary infection with gram-negative bacteria (GNB). The peripheral venous blood (PVB) and bronchoalveolar lavage fluid (BALF) were collected from patients receiving mechanical ventilation in the intensive care unit (ICU) owing to: (1) pulmonary GNB infection (group I) and (2) nonpulmonary infection (group NI). Patients from the two groups were matched based on their Acute Physiology and Chronic Health Evaluation II (APACHE II) scores and were recruited in the same period...
October 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28872971/phenotypic-and-functional-characteristics-of-th17-cd4-il17a-cells-in-human-oral-squamous-cell-carcinoma-and-its-clinical-relevance
#11
Poonam Gaur, Nootan K Shukla, Satya N Das
Recent studies have suggested an important role of T helper 17 (Th17) cells in tumor biology however, their phenotypic and functional aspects are poorly understood in context with oral cancer. We therefore, investigated the various phenotypic and functional markers of Th17 cells elucidating their relevance in oral squamous cell carcinoma (OSCC). Multi-color flow cytometry (FACs) was used to analyze the frequency and different markers of circulating Th17 cells ex vivo in peripheral blood mono-nuclear cells (PBMCs) from 69 OSCC patients and 35 healthy controls...
October 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28872970/interleukin-4-and-interleukin-10-gene-polymorphisms-in-patients-with-inflammatory-bowel-disease
#12
Nasser Ebrahimi Daryani, Amene Saghazadeh, Shirin Moossavi, Maryam Sadr, Sepideh Shahkarami, Samaneh Soltani, Elham Farhadi, Nima Rezaei
BACKGROUND: Changes in cytokine expression have been frequently found in patients with inflammatory bowel disease (IBD). Cytokine values outside the normal range may be somewhat related to common polymorphisms within cytokine genes. OBJECTIVE: The present study was designed to investigate the possible association between polymorphisms within Interleukin IL-4 and IL-10 genes and susceptibility to and clinical features of IBD. METHODS: The study population was composed of 140 healthy controls and 75 patients with IBD (40 patients with Crohn's disease (CD) and 35 patients with ulcerative colitis (UC))...
October 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28799818/the-expression-and-clinical-signification-of-pd-1-in-lymph-nodes-of-patients-with-non-small-cell-lung-cancer
#13
Haitao Ma, GuoCai Mao, GuangBo Zhang, HaiTao Huang
To screen anti-programmed cell death protein 1 (PD-1) antibody treatment of the dominant population, it is necessary to understand the expression of PD-1 in tumor metastasis microenvironment. The aim of the present study was to detect the expression of PD-1 in lymph nodes of 51 patients with non-small cell lung cancer (NSCLC) by using flow cytometry (FCM). The results showed that the PD-1 expression on CD3(+) T cells was significantly increased in NSCLC metastatic lymph nodes (50.08 ± 8.03%) compared with nonmetastatic lymph nodes (36...
October 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28753407/il-29-enhances-cxcl10-production-in-tnf-%C3%AE-stimulated-human-oral-epithelial-cells
#14
Yoshitaka Hosokawa, Ikuko Hosokawa, Satoru Shindo, Kazumi Ozaki, Takashi Matsuo
Interleukin-29 (IL-29) is a cytokine belonging to the Type III interferon family. It was recently detected in the gingival crevicular fluid of periodontitis patients. However, the role of IL-29 in the pathogenesis of periodontal disease remains unknown. The aim of this study was to examine the effects of IL-29 on C-X-C motif chemokine ligand 10 (CXCL10) production in human oral epithelial cells. We measured CXCL10 production in TR146 cells, which is a human oral epithelial cell line, using an enzyme-linked immunosorbent assay...
August 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28753406/association-of-established-thyroid-stimulating-hormone-and-free-thyroxine-genetic-variants-with-hashimoto-s-thyroiditis
#15
Luka Brčić, Sanda Gračan, Ana Barić, Ivana Gunjača, Vesela Torlak Lovrić, Ivana Kolčić, Tatijana Zemunik, Ozren Polašek, Maja Barbalić, Ante Punda, Vesna Boraska Perica
Hashimoto's thyroiditis (HT), the most frequent autoimmune thyroid disease (AITD), is characterized by chronic inflammation of the thyroid gland that usually results in hypothyroidism. Thyroid-stimulating hormone (TSH) and free thyroxine (FT4) levels are used as clinical determinants of thyroid function. The main aim of this study was to explore the association of established TSH and FT4 genetic variants with HT. We performed a case-control analysis using 23 genetic markers in 200 HT patients and 304 controls...
August 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28742417/mica-129met-val-polymorphism-is-associated-with-early-onset-breast-cancer-risk
#16
Nesrine Ouni, Arij Ben Chaaben, Ghalia Kablouti, Mohamed Lajnef, Fayza Ayari, Hajer Abaza, Tarek Damak, Latifa Harzallah, Amel Benammar-Elgaaeid, Fethi Guemira, Ryad Tamouza
The major histocompatibility complex class I-related chain A (MICA), expressed on cell surface, plays an important role in the elimination of both virus-infected cells and tumor through the activation of the natural killer (NK) receptor NKG2D. A polymorphic change from methionine (Met) to valine (Val) at amino acid position 129 categorizes MICA alleles into strong and weak binders for the NKG2D receptor and has been found in a variety of immune-related disorders. In this study, we investigated the potential interaction between genetic polymorphism of MICA and the development of breast cancer...
August 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28742415/air-and-dust-borne-fungi-in-indoor-and-outdoor-home-of-allergic-patients-in-a-dust-storm-affected-area
#17
Elham Shabankarehfard, Afshin Ostovar, Shokrollah Farrokhi, Behrouz Naeimi, Sasan Zaeri, Shahrokh Nazmara, Mozhgan Keshtkar, Farzaneh Sadeghzadeh, Sina Dobaradaran
Despite the recent increases in fungi-induced allergic diseases, there is no report yet in the region of the Persian Gulf on concentration levels of fungi in relationship with health state. Therefore, our aim was to measure fungi prevalence as well as to evaluate the relationships between air- and dust-borne fungal genera and allergic diseases. A matched case-control study was carried out including 45 allergic cases and 45 age- and gender-matched controls for each individual. Indoor and outdoor dust and indoor air samples were collected from participant homes during May to October 2015...
August 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28742407/tlr5-polymorphisms-rs2072493-rs5744174-and-rs5744168-are-not-genetic-risk-factors-for-chronic-helicobacter-pylori-infection-in-indian-tamils
#18
Vaishnavi Goda, Megala Jayaraman, Rekha Loganathan, Mehnaz Nazeer, Mohammed Ali, Premkumar Karunakaran, Panneer Devaraju
The incidence of Helicobacter pylori (H. pylori) infection and gastric cancer is on the rise in India, and the genetic factors influencing the increased susceptibility in Indian population remain obscure. Toll-like receptors (TLRs) play a major role in innate immune system and genetic polymorphisms affecting their function were reported to enhance the risk for H. pylori infection. Seventy-seven patients (n = 77) diagnosed with H. pylori infection and 230 healthy subjects were recruited in this study. The rs2072493, rs5744174, and rs5744168 polymorphisms within TLR5 gene were genotyped using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and Tetra-ARMS PCR genotyping techniques...
August 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28742404/pregnane-x-receptor-polymorphisms-and-risk-of-inflammatory-bowel-disease-a-meta-analysis
#19
Xiaolan Guo, Ming Yan
BACKGROUND: Pregnane X receptor (PXR) gene polymorphisms have been widely studied in terms of the association with inflammatory bowel disease (IBD), with inconsistent results. OBJECTIVE: The present meta-analysis was performed to assess the association between PXR gene polymorphisms and the susceptibility of IBD, Crohn's disease (CD), and ulcerative colitis (UC). METHODS: PubMed, Wanfang, and CNKI databases were searched for eligible studies before November 1, 2016...
August 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28742402/association-of-il-10-regulating-micrornas-in-peripheral-blood-mononuclear-cells-with-the-pathogenesis-of-autoimmune-thyroid-disease
#20
Yukina Takuse, Mikio Watanabe, Naoya Inoue, Ritsuko Ozaki, Hiroshi Ohtsu, Minori Saeki, Yuka Katsumata, Yoh Hidaka, Yoshinori Iwatani
Interleukin (IL)-10 is known to suppress inflammation in autoimmune diseases. IL-10 can be regulated by miRNAs. To elucidate the involvement of miRNAs that regulate IL-10 expression with the pathogenesis of autoimmune thyroid disease (AITD), we examined the expression levels of hsa-miR-27a-3p, hsa-miR-98-5p, hsa-miR-106a-5p, and hsa-miR-223-3p in peripheral blood mononuclear cells (PBMCs) from 43 patients with Graves' disease (GD), 38 patients with Hashimoto's disease (HD), and 21 healthy volunteers. We evaluated the association between the expression levels of four miRNAs and intracellular expression of IL-10 in PBMCs from 11 healthy volunteers...
August 2017: Immunological Investigations
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