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https://www.readbyqxmd.com/read/28806522/development-of-a-recombinant-multifunctional-biomacromolecule-for-targeted-gene-transfer-to-prostate-cancer-cells
#1
Arash Hatefi, Zahra Karjoo, Alireza Nomani
The objective of this study was to genetically engineer a fully functional single chain fusion peptide composed of motifs from diverse biological and synthetic origins that can perform multiple tasks including DNA condensation, cell targeting, cell transfection, particle shielding from immune system and effective gene transfer to prostate tumors. To achieve the objective, a single chain biomacromolecule (vector) consisted of four repetative units of histone H2A peptide, fusogenic peptide GALA, short elastin-like peptide and PC-3 cell targeting peptide was designed...
August 14, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28800701/a-new-indole-derivative-decreased-sall4-gene-expression-in-acute-promyelocytic-leukemia-cell-line-nb4
#2
Zahra Sheikhrezaei, Parisa Heydari, Alireza Farsinezhad, Ahmad Fatemi, Soudeh Khanamani Falahati-Pour, Shokoofeh Darakhshan, Mojgan Noroozi Karimabad, Ali Darekordi, Hossein Khorramdelazad, Gholamhossein Hassanshahi
Background: Acute myeloblastic leukemia (AML) is a clonal disorder due to bone marrow failure and uncontrolled proliferation of myeloid lineage. Acute promyelocytic leukemia (APL) is a subtype of AML. Heterocyclic compounds, such as indole, are considered as attractive candidates for cancer therapy, due to their abundance in nature and known biological activity. Sal-like protein (SALL4) is a zinc finger transcription factor involving in the multi-potency of stem cells, in the NB4 cell line...
August 12, 2017: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/28792648/mait-cell-frequency-and-function-in-blood-and-liver-of-hcv-mono-and-hcv-hiv-co-infected-patients-with-advanced-fibrosis
#3
Boris J B Beudeker, Gertine W van Oord, Joop E Arends, Julian Schulze Zur Wiesch, Marieke S van der Heide, Robert J de Knegt, Annelies Verbon, Andre Boonstra, Mark A A Claassen
BACKGROUND & AIMS: Mucosal-associated invariant T (MAIT) cells are important innate T-cells with anti-microbial and immunoregulatory activity, recently found to be depleted in blood of patients with HIV and HCV mono-infections. In this study, we assessed the impact of HIV, HCV and HCV/HIV co-infection on circulating and intrahepatic MAIT-cells and correlations with liver fibrosis. METHODS: In this cross-sectional study, 9 healthy subjects, 9 HIV, 20 HCV and 22 HCV/HIV co-infected patients were included...
August 9, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28782391/in-vitro-expansion-of-cd-133-cells-derived-from-umbilical-cord-blood-in-poly-l-lactic-acid-plla-scaffold-coated-with-fibronectin-and-collagen
#4
Maryam Islami, Yousef Mortazavi, Masoud Soleimani, Samad Nadri
CONTEXT: Due to their renewal and potency, umbilical cord blood (UCB) stem cells have the ability to proliferate and serve as an attractive alternative source for bone marrow transplantation. However, insufficient number of haematopoietic stem cells (HSCs) in UCB is still a major constraint in clinical applications. OBJECTIVE: In vitro expansion of stem cells on fibronectin (Fn)-coated poly-L-lactic acid (PLLA) scaffold can be a proper way to overcome this limitation...
August 6, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28752543/exonal-switch-down-regulates-the-expression-of-cd5-on-blasts-of-acute-t-cell-leukemia
#5
Ambak Kumar Rai, Amar Singh, Ankit Saxena, Tulika Seth, Vinod Raina, Dipendra Kumar Mitra
CD5 expression and its role in acute T cell lymphoblastic leukemia (T-ALL) have not been elaborately studied so far. We observed a significant reduction in surface expression of CD5 (sCD5) on leukemic T cells compared to autologous non-leukemic T cells. In this study, we have shown the molecular mechanism regulating the expression and function of CD5 on leukemic T cells. Total 250 numbers of patients suffering from leukemia and lymphoma were immunophenotyped. Final diagnosis was based on their clinical presentation, morphological data and flowcytometry based immunophenotyping...
July 28, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28733665/human-intrahepatic-cd69%C3%A2-%C3%A2-cd8-t-cells-have-a-tissue-resident-memory-t-cell-phenotype-with-reduced-cytolytic-capacity
#6
Femke Stelma, Annikki de Niet, Marjan J Sinnige, Karel A van Dort, Klaas P J M van Gisbergen, Joanne Verheij, Ester M M van Leeuwen, Neeltje A Kootstra, Hendrik W Reesink
Tissue resident memory T cells (TRM) have been identified in various tissues, however human liver TRM to date remain unidentified. TRM can be recognized by CD69 and/or CD103 expression and may play a role in the pathology of chronic hepatitis B (CHB) and hepatitis C virus infection (CHC). Liver and paired blood mononuclear cells from 17 patients (including 4 CHB and 6 CHC patients) were isolated and CD8+ T cells were comprehensively analysed by flowcytometry, immunohistochemistry and qPCR. The majority of intrahepatic CD8+ T cells expressed CD69, a marker used to identify TRM, of which a subset co-expressed CD103...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28726436/is-it-intestinal-tuberculosis-again-case-report
#7
Kristián Brat, Zdeněk Merta, Ivan Čundrle
This case report focuses on an immigrant admitted to the Department of Respiratory Diseases, University Hospital Brno due to suspicion of relapsing intestinal tuberculosis. The patient presented with fever, night sweat, weight loss, diarrhea, and a history of several tuberculosis attacks in the last few years. None of the examinations confirmed the presence of active tuberculosis but raised suspicion of hematological malignancy. Pancytopenia was present in the peripheral blood. However, bone marrow examination and flowcytometry excluded the presence of a hematological malignancy...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/28724400/detection-of-il-9-producing-t-cells-in-the-pbmcs-of-allergic-asthmatic-patients
#8
Lei Jia, Ying Wang, Jiangping Li, Sha Li, Yannan Zhang, Juan Shen, Weiping Tan, Changyou Wu
BACKGROUND: Interleukin-9 (IL-9) was reported as an active participant in the pathogenesis of allergic asthma. This study aimed to investigate the major source ofIL-9 and its effect on interferon γ (IFN-γ) and immunoglobulin (Ig) secretion by B cells. METHODS: We isolated peripheral blood mononuclear cells from children with allergic asthma and healthy children. IL-9, IL-4 and IFN-γ expression were detected by ELISA, ELISpot and Flowcytometry. Expression of transcription factor PU...
July 19, 2017: BMC Immunology
https://www.readbyqxmd.com/read/28718199/the-clec12a-receptor-marks-human-basophils-potential-implications-for-minimal-residual-disease-detection-in-myeloid-malignancies
#9
Marie Toft-Petersen, Anne Stidsholt Roug, Trine Plesner, Lene Ebbesen, Gordon D Brown, Line Nederby
BACKGROUND: The transmembrane receptor C-type lectin domain family 12, member A (CLEC12A) is known to be highly expressed on monocytes and neutrophils and is a reliable leukemia associated marker in acute myeloid leukemia. Consequently, detailed knowledge of the various normal cell types expressing this receptor is essential. We have observed CLEC12A to be expressed on CD45lowSSClowCD14-CD123+ basophils in peripheral blood (PB) and in the present study, we aimed at verifying this observation and further delineate the CD45lowSSClowCD14-CD123+CLEC12A+ subpopulation...
July 17, 2017: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/28713070/the-role-of-cd200-and-cd43-expression-in-differential-diagnosis-between-chronic-lymphocytic-leukemia-and-mantle-cell-lymphoma
#10
Mesude Falay, Berna Afacan Öztürk, Kürşad Güneş, Yasin Kalpakçı, Simten Dağdaş, Funda Ceran, Gülsüm Özet
OBJECTIVE: Atypical CLL is most frequently confused with mantle cell lymphoma (MCL). Several markers may contribute to the diagnosis of CLL. However, there is no consensus on which markers are needed to be used in the flowcytometry for the diagnosis of CLL. The aim of the present study was to investigate the role of CD43 and CD200 markers in the differential diagnosis between CLL and MCL. MATERIALS AND METHODS: To address this issue, 339 consecutive patients with CLL and MCL evaluation of CD43, and CD200 expressions were included in the flowcytometry LPD panel but not in the Matutes scoring system...
July 17, 2017: Turkish Journal of Haematology: Official Journal of Turkish Society of Haematology
https://www.readbyqxmd.com/read/28688377/no-role-of-herpes-simplex-virus-type-2-hsv-2-infection-on-hiv-progression-in-na%C3%A3-ve-hiv-patients
#11
Minoo Mohraz, Arezoo Aghakhani, Saeedeh Moayedi-Nia, Mohammad Banifazl, Alireza Janbakhsh, Setareh Mamishi, Afsaneh Karami, Anahita Bavand, Pegah Mirzapour, Amitis Ramezani
Background: Herpes simplex virus type 2 (HSV-2) is a common infection in human immunodeficiency virus (HIV) patients and may accelerate HIV progression by rising HIV viral load and decreasing CD4 count. However, the available data regarding the influence of HSV-2 seropositivity on HIV progression in HIV individuals are inconclusive. Therefore, we aimed to determine HSV-2 seroprevalence in naïve HIV patients and normal controls and also investigate the relation of HIV viral load and CD4 count with HSV-2 seropositivity...
July 9, 2017: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/28686299/rantes-levels-as-a-determinant-of-falciparum-malaria-severity-or-recovery
#12
D Bujarbaruah, M P Kalita, V Baruah, T K Basumatary, S Hazarika, R H Begum, S Medhi, S Bose
The study explored the role of differential RANTES concentrations, its receptor CCR5 expression and resulting immunomodulation in the pathogenesis and/or recovery from falciparum malaria. The study population included cases of uncomplicated malaria (UC-M, N=128, enrolled on follow-up basis), severe malaria (SM, N=25), and healthy controls (N=112). Serum RANTES and TNF-α levels were evaluated by ELISA. Monocyte levels and activation profile were studied by flow cytometry. Differential mRNA expression profile was studied by real-time PCR...
July 7, 2017: Parasite Immunology
https://www.readbyqxmd.com/read/28679035/partially-hydrolyzed-whey-proteins-prevent-clinical-symptoms-in-a-cow-s-milk-allergy-mouse-model-and-enhance-regulatory-t-and-b-cell-frequencies
#13
M B Gea Kiewiet, B C A M van Esch, J Garssen, M M Faas, P de Vos
SCOPE: Partially hydrolyzed cow's milk proteins are used to prevent cow's milk allergy in children. Here we studied the immunomodulatory mechanisms of partial cow's milk hydrolysates in vivo. METHODS AND RESULTS: Mice were sensitized with whey or partially hydrolyzed whey using cholera toxin. Whey-specific IgE levels were measured to determine sensitization and immune cell populations from spleen, mesenteric lymph nodes and Peyer's patches after oral whey administration were measured by flowcytometry...
July 5, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28670966/malnutrition-in-hiv-infected-children-is-an-indicator-of-severe-disease-with-an-impaired-response-to-antiretroviral-therapy
#14
Maximilian Muenchhoff, Michael Healy, Ravesh Singh, Julia Roider, Andreas Groll, Chirjeev Kindra, Thobekile Sibaya, Angeline Moonsamy, Callum McGregor, Michelle Q Phan, Alejandro Palma, Henrik Kloverpris, Alasdair Leslie, Raziya Bobat, Philip S LaRussa, Thumbi Ndung'u, Philip Jr Goulder, Magdalena E Sobieszczyk, Mohendran Archary
Objectives This observational study aimed to describe immunopathogenesis and treatment outcomes in children with and without severe acute malnutrition (SAM) and HIV-infection. Design We studied markers of microbial translocation (16sDNA), intestinal damage (iFABP), monocyte activation (sCD14), T-cell activation (CD38, HLA-DR) and immune exhaustion (PD1) in 32 HIV-infected children with and 41 HIV-infected children without SAM prior to initiation of antiretroviral therapy (ART) and cross-sectionally compared these children to 15 HIV-uninfected children with and 19 HIV-uninfected children without SAM...
July 2, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28665985/early-decreased-neutrophil-responsiveness-is-related-to-late-onset-sepsis-in-multitrauma-patients-an-international-cohort-study
#15
Kathelijne M Groeneveld, Leo Koenderman, Brian L Warren, Saskia Jol, Luke P H Leenen, Falco Hietbrink
BACKGROUND: Severe trauma can lead to the development of infectious complications after several days, such as sepsis. Early identification of patients at risk will aid anticipating these complications. The aim of this study was to test the relation between the acute (<24 hours) inflammatory response after injury measured by neutrophil responsiveness and the late (>5 days) development of septic complications and validate this in different trauma populations. METHODS AND FINDINGS: Two prospective, observational, cohort series in the Netherlands and South Africa, consisting of severely injured trauma patients...
2017: PloS One
https://www.readbyqxmd.com/read/28662432/cathelicidin-augments-vdr-dependent-anti-leishmanial-immune-response-in-indian-post-kala-azar-dermal-leishmaniasis
#16
Sushmita Das, Abul Hasan Sardar, Kumar Abhishek, Ajay Kumar, Vidya Nand Rabidas, Pradeep Das
OBJECTIVES: Indian Post kala-azar dermal leishmaniasis (PKDL) is the cutaneous aftermath of visceral leishmaniasis (VL) caused by L. donovani. Vitamin D-regulated cationic antimicrobial peptide cathelicidin (hCAP-18/LL-37) has microbicidal and immunomodulatory role against cutaneous infections, but its role in PKDL remains elusive. METHODS: Skin snips and blood-derived monocytes of PKDL patients (n=46), before (BT) and after (AT) chemotherapy, were used for this study...
June 26, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28640669/cellular-components-including-stem-like-cells-of-preterm-mother-s-mature-milk-as-compared-with-those-in-her-colostrum-a-pilot-study
#17
Pankaj Kaingade, Indumathi Somasundaram, Akshita Sharma, Darshan Patel, Dhanasekaran Marappagounder
Purpose and Study Objective: Whether the preterm mothers' mature milk retains the same cellular components as those in colostrum including stem-like cell, cell adhesion molecules, and immune cells. PARTICIPANTS: A total of five preterm mothers were recruited for the study having an average age of 30.2 years and gestational age of 29.8 weeks from the Pristine Women's Hospital, Kolhapur. Colostrum milk was collected within 2-5 days and matured milk was collected 20-30 days after delivery from the same mothers...
June 22, 2017: Breastfeeding Medicine: the Official Journal of the Academy of Breastfeeding Medicine
https://www.readbyqxmd.com/read/28631562/cancer-stem-cell-markers-in-patterning-differentiation-and-in-prognosis-of-oral-squamous-cell-carcinoma
#18
Simple Mohanta, Gangotri Siddappa, Sindhu Govindan Valiyaveedan, Ravindra Dodda Thimmasandra Ramanjanappa, Debashish Das, Ramanan Pandian, Samanta Sekhar Khora, Moni Abraham Kuriakose, Amritha Suresh
Differentiation is a major histological parameter determining tumor aggressiveness and prognosis of the patient; cancer stem cells with their slow dividing and undifferentiated nature might be one of the factors determining the same. This study aims to correlate cancer stem cell markers (CD44 and CD147) with tumor differentiation and evaluate their subsequent effect on prognosis. Immunohistochemical analysis in treatment naïve oral cancer patients (n = 53) indicated that the expression of CD147 was associated with poorly differentiated squamous cell carcinoma and moderately differentiated squamous cell carcinoma (p < 0...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28623810/platelet-granule-release-is-associated-with-reactive-oxygen-species-generation-during-platelet-storage-a-direct-link-between-platelet-pro-inflammatory-and-oxidation-states
#19
Mehran Ghasemzadeh, Ehteramolsadat Hosseini
BACKGROUND: Upon platelet stimulation with agonists, reactive oxygen species (ROS) generation enhances platelet activation and granule release. Whether ROS generation during platelet storage could be directly correlated with the expression of proinflammatory molecules and granule release has been investigated in this study. MATERIAL AND METHOD: PRP-platelet concentrates were subjected to flowcytometry analysis to assess the expression of platelet activation marker, P-selectin and CD40L during storage...
June 10, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28622710/effect-of-intravenous-immunoglobulin-on-th1-and-th2-lymphocytes-and-improvement-of-pregnancy-outcome-in-recurrent-pregnancy-loss-rpl
#20
Majid Ahmadi, Samaneh Abdolmohammadi-Vahid, Mahnaz Ghaebi, Leili Aghebati-Maleki, Amir Afkham, Shahla Danaii, Sedigheh Abdollahi-Fard, Lida Heidari, Farhad Jadidi-Niaragh, Vahid Younesi, Mohammad Nouri, Mehdi Yousefi
BACKGROUND: Women with elevated natural killer (NK) cell frequency and function during pregnancy, suffer from recurrent pregnancy loss (RPL). In the present study, the possible effect of intravenous immunoglobulin (IVIG) administration on Th1 and Th2 cell frequency, cytokine secretion, and expression of transcription factors is compared between RPL patients and control group. MATERIALS AND METHODS: Totally, 44 women with a history of RPL (32 women as treated group and 12 as control group) were enrolled in the study...
August 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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