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https://www.readbyqxmd.com/read/28687990/cd34-negative-hematopoietic-stem-cells-show-distinct-expression-profiles-of-homing-molecules-that-limit-engraftment-in-mice-and-sheep
#1
Tomoyuki Abe, Yoshikazu Matsuoka, Yoshikazu Nagao, Yoshiaki Sonoda, Yutaka Hanazono
We and others have reported that human hematopoietic stem cells (HSCs) are also present in the CD34-negative (CD34(-)) fraction of human cord blood (CB). Here, we examined the hematopoietic engraftment potential of 13 or 18 lineage-negative (13Lin(-) or 18Lin(-)) CD34(+/-) cells from human CB in mice and sheep. Both 13Lin(-) and 18Lin(-) CD34(+) cells efficiently engrafted in mice irrespective of transplantation route, be it by tail-vein injection (TVI) or by intra-bone marrow injection (IBMI). These cells also engrafted in sheep after in utero fetal intra-hepatic injection (IHI)...
July 7, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28684129/chemokine-isoforms-and-processing-in-inflammation-and-immunity
#2
REVIEW
Paul Proost, Sofie Struyf, Jo Van Damme, Pierre Fiten, Estefania Ugarte-Berzal, Ghislain Opdenakker
The first dimension of chemokine heterogeneity is reflected by their discovery and purification as natural proteins. Each of those chemokines attracted a specific inflammatory leukocyte type. With the introduction of genomic technologies, a second wave of chemokine heterogeneity was established by the discovery of putative chemokine-like sequences and by demonstrating chemotactic activity of the gene products in physiological leukocyte homing. In the postgenomic era, the third dimension of chemokine heterogeneity is the description of posttranslational modifications on most chemokines...
July 3, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28670232/changes-in-serum-levels-of-lipopolysaccharides-and-cd26-in-patients-with-crohn-s-disease
#3
Daniéla Oliveira Magro, Paulo Gustavo Kotze, Carlos Augusto Real Martinez, Michel Gardere Camargo, Dioze Guadagnini, Antonio Ramos Calixto, Ana Carolina Junqueira Vasques, Maria de Lourdes Setsuko Ayrizono, Bruno Geloneze, José Carlos Pareja, Mario José Saad, Claudio Saddy Rodrigues Coy
BACKGROUND/AIMS: Lipopolysaccharide (LPS) is a molecule formed by lipids and polysaccharides and is the major cell wall component of gram-negative bacteria. High LPS levels are known to block CD26 expression by activating Toll-like receptor 4. The aim of this study was to correlate the serum levels of LPS and CD26 in Crohn's disease (CD) patients with serum levels of C-reactive protein (CRP), interleukins, CD activity index, and tumor necrosis factor-α (TNF-α). METHODS: Serum samples were collected from 27 individuals (10 with active CD, 10 with inactive CD, and 7 controls) and the levels of LPS, CD26, TNF-α, interleukin-1β (IL-1β), IL-6, IL-17, and CRP were determined by enzyme-linked immunosorbent assay...
July 2017: Intestinal Research
https://www.readbyqxmd.com/read/28651949/%C3%AE-%C3%AE-t-cell-function-is-inhibited-in-end-stage-renal%C3%A2-disease-and-impacted-by-latent-tuberculosis%C3%A2-infection
#4
Jennifer A Juno, Jillian L M Waruk, Angela Harris, Christine Mesa, Carmen Lopez, Joe Bueti, T Blake Ball, Sandra A Kiazyk
Patients with end-stage renal disease (ESRD) are at elevated risk of acquiring infectious diseases, including tuberculosis (TB). Inflammation and uremia negatively impact immune function in this population, but specific pathways involved in TB immunity have not been identified. Although γδ T cells are known to contribute to protection from TB, their phenotype and function in patients with ESRD is relatively unknown. To determine this we recruited 20 patients with and 20 without ESRD (controls), with or without latent TB infection to assess γδ T cell frequency, surface phenotype, and cytokine production by flow cytometry in response to stimulation...
June 24, 2017: Kidney International
https://www.readbyqxmd.com/read/28641076/elevated-cd26-expression-by-skin-fibroblasts-distinguishes-a-profibrotic-phenotype-involved-in-scar-formation-compared-to-gingival-fibroblasts
#5
Wesley Mah, Guoqiao Jiang, Dylan Olver, Corrie Gallant-Behm, Colin Wiebe, David A Hart, Leeni Koivisto, Hannu Larjava, Lari Häkkinen
Compared to skin, wound healing in oral mucosa is faster and produces less scarring, but the mechanisms involved are incompletely understood. Studies in mice have linked high expression of CD26 to a profibrotic fibroblast phenotype, but this has not been tested in models more relevant for humans. We hypothesized that CD26 is highly expressed by human skin fibroblasts (SFBLs), and this associates with a profibrotic phenotype distinct from gingival fibroblasts (GFBLs). We compared CD26 expression in human gingiva and skin and in gingival and hypertrophic-like scar-forming skin wound healing in a pig model, and used three-dimensional cultures of human GFBLs and SFBLs...
June 19, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28625631/cd52-cd22-cd26-eg5-and-igf-1r-expression-in-thymic-malignancies
#6
J Remon, N Abedallaa, E Taranchon-Clermont, V Bluthgen, C R Lindsay, B Besse, V Thomas de Montpréville
BACKGROUND: Thymic epithelial tumours are rare cancers for which new treatment options are required. Identification of putative predictive markers is important for developing clinical trials. We studied the expression of five putative predictive biomarkers, potentially actionable by approved experimental drugs. METHODS: CD52, CD22, CD26, EG5, and IGF-1R expression were investigated by immunohistochemistry in formalin-fixed surgical samples of thymic epithelial tumour patients...
June 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28620953/molecular-characterisation-of-%C3%AE-and-%C3%AE-thalassaemia-among-indigenous-senoi-orang-asli-communities-in-peninsular-malaysia
#7
Danny Xuan Rong Koh, Raja Zahratul Azma Raja Sabudin, Malisa Mohd Yusoff, Noor Hamidah Hussin, Rahimah Ahmad, Ainoon Othman, Endom Ismail
Thalassaemia is a public health problem in Malaysia, with each ethnic group having their own common mutations. However, there is a lack on data on the prevalence and common mutations among the indigenous people. This cross-sectional study was performed to determine the common mutations of α- and β-thalassaemia among the subethnic groups of Senoi, the largest Orang Asli group in Peninsular Malaysia. Blood samples collected from six Senoi subethnic groups were analysed for full blood count and haemoglobin analysis (HbAn)...
June 16, 2017: Annals of Human Genetics
https://www.readbyqxmd.com/read/28620928/the-importance-of-the-number-of-transplanted-cells-with-dipeptidyl-peptidase-4-expression-on-the-haematopoietic-recovery-and-lymphocyte-reconstitution-in-patients-with-multiple-myeloma-after-autologous-haematopoietic-stem-cell-transplantation
#8
Anna Kopinska, Małgorzata Krawczyk-Kulis, Joanna Dziaczkowska-Suszek, Katarzyna Bieszczad, Krystyna Jagoda, Slawomira Kyrcz-Krzemien
Autologous haematopoietic stem cell transplantation (AHSCT) remains recommended treatment in the first remission in multiple myeloma (MM). In earlier research it has been suggested that there is an influence of the expression of dipeptidyl peptidase-4 (CD26) on both the homing and lymphocyte reconstitution after AHSCT. The aim of the study is to investigate the influence of transplanted cells CD26+ on the haematopoietic recovery and lymphocyte reconstitution after AHSCT in MM. Forty eight patients with MM underwent AHSCT in our centre...
June 2017: Hematological Oncology
https://www.readbyqxmd.com/read/28615725/transcriptome-analysis-reveals-similarities-between-human-blood-cd3-cd56-bright-cells-and-mouse-cd127-innate-lymphoid-cells
#9
David S J Allan, Ana Sofia Cerdeira, Anuisa Ranjan, Christina L Kirkham, Oscar A Aguilar, Miho Tanaka, Richard W Childs, Cynthia E Dunbar, Jack L Strominger, Hernan D Kopcow, James R Carlyle
For many years, human peripheral blood natural killer (NK) cells have been divided into functionally distinct CD3(-) CD56(bright) CD16(-) and CD3(-) CD56(dim) CD16(+) subsets. Recently, several groups of innate lymphoid cells (ILC), distinct from NK cells in development and function, have been defined in mouse. A signature of genes present in mouse ILC except NK cells, defined by Immunological Genome Project studies, is significantly over-represented in human CD56(bright) cells, by gene set enrichment analysis...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28599787/anti-cd26-autoantibodies-are-involved-in-rheumatoid-arthritis-and-show-potential-clinical-interest
#10
Oscar J Cordero, Rubén Varela-Calviño, Tania López-González, Milica Grujic, Zorica Juranic, Coral Mouriño, Íñigo Hernández-Rodríguez, Marina Rodríguez-López, Bruno Aspe de la Iglesia, José María Pego-Reigosa
OBJECTIVES: Rheumatoid arthritis (RA) patients show low serum levels of the Ag dipeptidyl peptidase IV (DPP-IV/CD26), both soluble CD26 (sCD26) concentration and its DPP-IV activity. The aim of this study was to test if anti-DPP-IV/CD26 Abs (Anti-CD26) cleared sCD26. DESIGN & METHODS: Serum Anti-CD26 and Total titers (as comparison) of isotypes IgA, IgM and IgG as well as sCD26 concentration and DPP-IV activity were measured in a cohort of RA patients undergoing different biological and non-biological therapies (n=105) and controls (n=50)...
June 6, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28595473/cd4-cd26-lymphocytes-are-useful-to-assess-blood-involvement-and-define-b-ratings-in-cutaneous-t-cell-lymphoma
#11
Eric C Vonderheid, J Steve Hou
Bernengo et al. reported that >30% CD4(+)CD26(-) lymphocytes detect blood involvement in patients with mycosis fungoides (MF) and Sézary syndrome. In addition, the ISCL/EORTC suggested that this threshold might serve as a criterion for the B2 blood rating for staging. In this manuscript, we report our experience with measurement of CD4(+)CD26(-) and CD4(+)CD7(-) cells, Sézary cell counts, and aberrant T cells with diminished expression of CD2, CD3, or CD5 antigens. CD4(+)CD26(-) ≥30% occurred in 15 of 373 (4...
June 9, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28545226/emergence-of-cd26-cancer-stem-cells-with-metastatic-properties-in-colorectal-carcinogenesis
#12
Alvin Ho-Kwan Cheung, Deepak Narayanan Iyer, Colin Siu-Chi Lam, Lui Ng, Sunny K M Wong, Hung-Sing Lee, Timothy Wan, Johnny Man, Ariel K M Chow, Ronnie T Poon, Roberta Pang, Wai-Lun Law
Colorectal cancer results from genetic aberrations which accumulate over a long period of time, with malignant and metastatic properties acquired at a relatively late stage. A subpopulation of CD26+ colorectal cancer stem cells are known to be implicated in metastasis. We quantified CD26+ cancer cells in 11 primary tumor samples by flow cytometry, and showed that tumors having confirmed or suspected metastases harbored a relatively high CD26+ level in these samples. We hypothesized that this subpopulation of cancer stem cells arises in the late stage of carcinogenesis from the bulk of tumor daughter cells which are CD26-...
May 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28533196/transformation-of-mycosis-fungoides-sezary-syndrome-clinical-characteristics-and-prognosis
#13
Seçil Vural, Bengü Nisa Akay, Ayşenur Botsalı, Erden Atilla, Nehir Parlak, Aylin Okçu Heper, Hatice Şanlı
INTRODUCTION: Transformed mycosis fungoides (T-MF) is a rare variant of mycosis fungoides (MF) with an aggressive course. OBJECTIVES: In this study we aimed to describe characteristics MF/Sezary syndrome (SS) cases with transformation. MATERIALS AND METHODS: Patients diagnosed with transformed MF (T-MF) among MF/SS patients between 2000 and 2014 in a single center are evaluated retrospectively.Demographic, clinical, laboratory, immunophenotype features, response to treatment, survival and histopathologic features were analyzed...
May 23, 2017: Turkish Journal of Haematology: Official Journal of Turkish Society of Haematology
https://www.readbyqxmd.com/read/28514279/impact-of-alemtuzumab-on-hiv-persistence-in-an-hiv-infected-individual-on-antiretroviral-therapy-with-sezary-syndrome
#14
Thomas Aagaard Rasmussen, James McMahon, J Judy Chang, Jori Symons, Michael Roche, Ashanti Dantanarayana, Afam Okoye, Bonnie Hiener, Sarah Palmer, Wen Shi Lee, Stephen Kent, Carrie Van Der Weyden, H Miles Prince, Paul U Cameron, Sharon R Lewin
OBJECTIVE: To study the effects of alemtuzumab on HIV persistence in an HIV-infected individual on antiretroviral therapy (ART) with Sezary syndrome, a rare malignancy of CD4+ T-cells DESIGN:: Case report. METHODS: Blood was collected 30 and 18 months prior to presentation with Sezary syndrome, at the time of presentation and during alemtuzumab. T-cell subsets in malignant (CD7-CD26-TCR-VBeta2+) and non-malignant cells were quantified by flow cytometry. HIV-DNA in total CD4+ T-cells, in sorted malignant and non-malignant CD4+ T-cells was quantified by PCR and clonal expansion of HIV-DNA assessed by full-length next-generation sequencing...
May 16, 2017: AIDS
https://www.readbyqxmd.com/read/28498352/encapsulation-of-16-hydroxycleroda-3-13-dine-16-15-olide-in-mesoporous-silica-nanoparticles-as-a-natural-dipeptidyl-peptidase-4-inhibitor-potentiated-hypoglycemia-in-diabetic-mice
#15
Po-Kai Huang, Shi-Xiang Lin, May-Jywan Tsai, Max K Leong, Shian-Ren Lin, Ranjith Kumar Kankala, Chia-Hung Lee, Ching-Feng Weng
Natural supplements comprise good efficacy with less adverse effects as against diabetic therapy, but their advancement as anti-diabetic agents is unsatisfactory with regard to the delivery system. Dipeptidyl peptidase-4 (DPP4)/CD26) can degrade glucagon-like pepetide-1 (GLP-1) which renders a decrease of blood glucose levels. 16-hydroxycleroda-3,13-dine-16,15-olide (HCD) extracted from Polyalthia longifolia, exhibits numerous medicinal potentials including hypoglycemic potential. On consideration of HCD application, the bioavailability is affected by low solubility...
May 12, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28454879/expansion-of-cd26-positive-fibroblast-population-promotes-keloid-progression
#16
Yu Xin, Xiangsheng Wang, Ming Zhu, Miao Qu, Melia Bogari, Li Lin, Zin Mar Aung, Wei Chen, Xiaojun Chen, Gang Chai, Yan Zhang
BACKGROUND: Keloid is a skin fibrosis disease that characterised by invasive growth of fibroblasts and aberrant deposition of extracellular matrix. Studies indicated that keloid fibroblasts (KFs) is a class of 'activated' fibroblasts, which show accelerated proliferation and excessive extracellular matrix formation as compared with normal fibroblasts (NFs). However, the mechanism underlying keloid fibroblasts dysfunction is still unknown. OBJECTIVE: To verify CD26 expression difference between KFs and NFs, and investigate the function of CD26 positive fibroblasts in keloid progression...
April 25, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28454451/expression-of-glp-1-receptor-and-cd26-in-human-thyroid-c-cells-the-association-of-thyroid-c-cell-tumorigenesis-with-incretin-based-medicine
#17
Yuejia Song, Min Zhou, Yang Cao, Jiping Qi, Jingshu Geng, Xiaomin Liu
Recent reports have demonstrated that long-term and high dosage treatments with incretin-based medicine, such as hormone glucagon-like peptide-1 (GLP-1) may induce thyroid C-cell pathological changes in rodents, rather than in humans. Doubts regarding the tumorigenic potential of GLP-1 analogues in human thyroid C-cells remain. The present study aimed to determine the expression levels of GLP-1 receptor (GLP-1R) and cluster of differentiation 26 (CD26) in the C-cells of thyroid tissues from non-neoplastic, medullary carcinoma and hyperplasia subjects, and to explore the potential clinical significance...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28448874/regulation-and-roles-of-cd26-dppiv-in-hematopoiesis-and-diseases
#18
REVIEW
Zeynab Aliyari Serej, Abbas Ebrahimi Kalan, Ahmad Mehdipour, Hojjatollah Nozad Charoudeh
Dipeptidyl peptidase IV (DPPIV),(1) on the surface of certain cells, where it is also referred to as CD26, is involved in a vast majority of biological and pathological processes. CD26/DPPIV function contributes to cancer and tumor metastasis as well as inhibition of its expression which alters the expression of immune response-related genes. CD26/DPPIV is a widely distributed multifunctional integral membrane and secreted protein that is defined as early predictive biomarker in HIV, cancer and autoimmunity diseases like diabetes and multiple sclerosis...
July 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28432925/structure-of-the-s1-subunit-c-terminal-domain-from-bat-derived-coronavirus-hku5-spike-protein
#19
Xue Han, Jianxun Qi, Hao Song, Qihui Wang, Yanfang Zhang, Ying Wu, Guangwen Lu, Kwok-Yung Yuen, Yi Shi, George F Gao
Accumulating evidence indicates that MERS-CoV originated from bat coronaviruses (BatCoVs). Previously, we demonstrated that both MERS-CoV and BatCoV HKU4 use CD26 as a receptor, but how the BatCoVs evolved to bind CD26 is an intriguing question. Here, we solved the crystal structure of the S1 subunit C-terminal domain of HKU5 (HKU5-CTD), another BatCoV that is phylogenetically related to MERS-CoV but cannot bind to CD26. We observed that the conserved core subdomain and those of other betacoronaviruses (betaCoVs) have a similar topology of the external subdomain, indicating the same ancestor of lineage C betaCoVs...
July 2017: Virology
https://www.readbyqxmd.com/read/28431200/the-utility-of-flow-cytometry-in-differentiating-nk-t-cell-lymphoma-from-indolent-and-reactive-nk-cell-proliferations
#20
Sanjay de Mel, Jenny Bei Li, Muhammad Bilal Abid, Tiffany Pooi Ling Tang, Hui Ming Tay, Wen Chang Ting, Li Mei Poon, Tae Hoon Chung, Benjamin Mow, Allison Tso, Kiat Hoe Ong, Wee Joo Chng, Te Chih Liu
BACKGROUND: The WHO defines three categories of NK cell malignancies; extra nodal NK/T cell lymphoma (NKTCL), aggressive NK cell leukemia, and the provisional entity chronic lymphoproliferative disorder of NK cells (CLPD-NK). Although the flow cytometric (FC) phenotype of CLPD-NK has been described, studies on FC phenotype of NKTCL are limited. To the best of our knowledge ours is the first study to compare the phenotype of NKTCL, CLPD-NK, reactive NK lymphocytosis (RNKL), and normal NK cells using eight color (8C) FC...
April 21, 2017: Cytometry. Part B, Clinical Cytometry
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