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https://www.readbyqxmd.com/read/28629733/an-optimized-protocol-for-the-generation-and-functional-analysis-of-human-mast-cells-from-cd34-enriched-cell-populations
#1
Yuzhi Yin, Yun Bai, Ana Olivera, Avanti Desai, Dean D Metcalfe
The culture of mast cells from human tissues such a cord blood, peripheral blood or bone marrow aspirates has advanced our understanding of human mast cells (huMC) degranulation, mediator production and response to pharmacologic agents. However, existing methods for huMC culture tend to be laborious and expensive. Combining technical approaches from several of these protocols, we designed a simplified and more cost effective approach to the culture of mast cells from human cell populations including peripheral blood and cryopreserved cells from lymphocytapheresis...
June 16, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28610135/chromosomal-evidence-for-a-new-cryptic-species-of-black-fly-in-the-i-simulium-i-i-praelargum-i-complex-diptera-simuliidae-from-west-bengal-india
#2
Sachin Thapa, Peter H Adler, Shailika Chhetri, Rakesh Varma, Willie Henry
Analyses of polytene chromosomes revealed a new cryptic species of black fly, Simulium praelargum "IL", in the Simulium (Nevermania) feuerborni group from Darjeeling, West Bengal, India. This new species occurred sympatrically with two other previously recognized species in the S. praelargum complex: Simulium praelargum Datta sensu stricto and Simulium praelargum "IIIL-1.2". Chromosome arms IS, IIS, IIL, and IIIS of the new species showed no differences in banding patterns, compared with the sequences in Simulium praelargum s...
March 17, 2017: Zootaxa
https://www.readbyqxmd.com/read/28594940/the-introduction-of-mesenchymal-stromal-cells-induces-different-immunological-responses-in-the-lungs-of-healthy-and-m-tuberculosis-infected-mice
#3
Tatiana Nenasheva, Alexander Nikolaev, Daniar Diykanov, Anna Sukhanova, Evgenii Tcyganov, Alexander Panteleev, Irina Bocharova, Yana Serdyuk, Leonid Nezlin, Tatiana Radaeva, Nikolai Adrianov, Yuri Rubtsov, Irina Lyadova
Mesenchymal stromal cells (MSC) have strong immunomodulatory properties and therefore can be used to control inflammation and tissue damage. It was suggested recently that MSC injections can be used to treat multi-drug resistant tuberculosis (TB). However, MSC trafficking and immunomodulatory effects of MSC injections during Mycobacterium tuberculosis (Mtb) infection have not been studied. To address this issue we have analyzed MSC distribution in tissues and local immunological effects of MSC injections in Mtb infected and uninfected mice...
2017: PloS One
https://www.readbyqxmd.com/read/28583232/effect-of-topical-beclomethasone-on-inflammatory-markers-in-adults-with-eosinophilic-esophagitis-a-pilot-study
#4
Neeti Bhardwaj, Faoud Ishmael, Erik Lehman, Deborah Bethards, Francesca Ruggiero, Gisoo Ghaffari
BACKGROUND: Topical corticosteroids have proven efficacy in the treatment of eosinophilic esophagitis (EoE) and are considered the cornerstone of therapy. OBJECTIVE: To evaluate the effect of topical beclomethasone dipropionate (BDP) therapy on clinical outcomes, esophageal eosinophilia, and other markers of inflammation in patients with EoE. METHODS: Nine subjects with a biopsy-proven diagnosis of EoE were enrolled. In a cross-over design, the subjects were randomly assigned to a sequence of BDP and placebo...
June 1, 2017: Allergy & Rhinology
https://www.readbyqxmd.com/read/28582647/inflammatory-serum-cytokines-and-chemokines-increase-associated-with-the-disease-extent-in-pediatric-langerhans-cell-histiocytosis
#5
Akira Morimoto, Yukiko Oh, Sachie Nakamura, Yoko Shioda, Tomomi Hayase, Toshihiko Imamura, Kazuko Kudo, Shinsaku Imashuku
OBJECTIVE: Langerhans cell histiocytosis (LCH) is characterized by immature dendritic cell proliferation, infiltration of LCH lesions by various inflammatory cells, and a lesional cytokine storm. It is classified into three groups on the basis of disease extent, namely, multisystem with risk-organ involvement (MS+), multisystem without risk-organ involvement (MS-), and single-system (SS) disease. We comprehensively analyzed whether serum levels of cytokines/chemokines reflect the disease extent...
June 2, 2017: Cytokine
https://www.readbyqxmd.com/read/28576879/robust-patient-derived-xenografts-of-mds-mpn-overlap-syndromes-capture-the-unique-characteristics-of-cmml-and-jmml
#6
Akihide Yoshimi, Maria E Balasis, Alexis Vedder, Kira Feldman, Yan Ma, Hailing Zhang, Stanley Chun-Wei Lee, Christopher Letson, Sandrine Niyongere, Sydney X Lu, Markus Ball, Justin Taylor, Qing Zhang, Yulong Zhao, Salma Youssef, Young Rock Chung, Xiao Jing Zhang, Benjamin H Durham, Wendy Yang, Alan F List, Mignon L Loh, Virginia Klimek, Michael F Berger, Elliot Stieglitz, Eric Padron, Omar Abdel-Wahab
Chronic myelomonocytic leukemia (CMML) and juvenile myelomonocytic leukemia (JMML) are characterized by monocytosis, myelodysplasia, and a characteristic hypersensitivity to GM-CSF. Currently, there are no available disease-modifying therapies for CMML, nor are there preclinical models that fully recapitulate the unique features of CMML. Through use of immunocompromised mice with transgenic expression of human GM-CSF, IL-3, and SCF in a NOD/SCID-IL2Rγ(null) background (NSGS mice), we demonstrate remarkable engraftment of CMML and JMML providing the first examples of serially transplantable and genetically accurate models of CMML...
June 2, 2017: Blood
https://www.readbyqxmd.com/read/28574591/bone-marrow-adipocytes-support-haematopoietic-stem-cell-survival
#7
Domenico Mattiucci, Giulia Maurizi, Valerio Izzi, Lorenzo Cenci, Marco Ciarlantini, Stefania Mancini, Emanuela Mensà, Raffaele Pascarella, Marco Vivarelli, Attilio Olivieri, Pietro Leoni, Antonella Poloni
In bone marrow (BM), haematopoietic elements are mingled with adipocytes (BM-A), which are the most abundant stromal component in the niche. BM-A progressively increase with ageing, eventually occupying up to 50% of BM cavities. In this work, the role played by BM-A was explored by studying primary human BM-A isolated from hip surgery patients at the molecular level, through microarray analysis, and at the functional level, by assessing their relationship with primary human haematopoietic stem cells (HSC) by the long-term culture initiating cell (LTC-IC) assay...
June 2, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28573141/c-kit-positive-adipose-tissue-derived-mesenchymal-stem-cells-promote-the-growth-and-angiogenesis-of-breast-cancer
#8
Wenjie Li, Haiqian Xu, Cheng Qian
BACKGROUND: Adipose tissue-derived mesenchymal stem cells (ASCs) improve the regenerative ability and retention of fat grafts for breast reconstruction in cancer patients following mastectomy. However, ASCs have also been shown to promote breast cancer cell growth and metastasis. For the safety of ASC application, we aimed to identify specific markers for the subpopulation of ASCs that enhance the growth of breast cancer. METHODS: ASCs and bone marrow-derived vascular endothelial progenitor cells (EPCs) were isolated from Balb/c mice...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28565888/role-of-adipokines-and-inflammatory-markers-in-postmenopausal-hypertension
#9
Mose July, Saba Faiz, Abid Yaqub, Prasanna Santhanam, Jillian Douglas, Ronald Stanek, Todd Gress, Omolola Olajide, Henry Driscoll, Nalini Santanam
BACKGROUND: The role of inflammatory markers and adipokines contributing to the development of postmenopausal hypertension, has not been established. The aim of our study was to assess the complex association between blood pressure, obesity, menopausal status, adipokines and inflammatory mediators in postmenopausal women. METHODS: We recruited 38 women seen at our Endocrinology Clinic and collected anthropometric measures and blood pressure and obtained serum samples for inflammatory markers and adipokine levels...
May 31, 2017: Minerva Endocrinologica
https://www.readbyqxmd.com/read/28545868/ameliorative-effect-of-atractylenolide-iii-in-the-mast-cell-proliferation-induced-by-tslp
#10
Myoung-Schook Yoou, Sun-Young Nam, Mu Hyun Jin, So Young Lee, Mi-Sun Kim, Seok Seon Roh, In Hwa Choi, Nariyah Woo, SeokWon Lim, Dong Hyun Kim, Jae-Bum Jang, Hyung-Min Kim, Hyun-Ja Jeong
Atractylenolide III (ATL-III) is an active compound of Atractylodes lancea, which has been widely used for the treatment of cancer. Cancer is closely connected with inflammation, and many anti-inflammatory agents are also used to treat cancer. We investigated the influence of ATL-III on thymic stromal lymphopoietin (TSLP)-induced inflammatory reactions. Pretreatment with ATL-III suppressed murine double minute 2 levels and promoted p53 levels in TSLP-treated human mast cell, HMC-1 cells. Mast cell proliferation increased by TSLP or IL-3 stimulation was significantly decreased by ATL-III pretreatment...
May 22, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28542518/rnf41-interacts-with-the-vps52-subunit-of-the-garp-and-earp-complexes
#11
Delphine Masschaele, Leentje De Ceuninck, Joris Wauman, Dieter Defever, Frank Stenner, Sam Lievens, Frank Peelman, Jan Tavernier
RNF41 (Ring Finger Protein 41) is an E3 ubiquitin ligase involved in the intracellular sorting and function of a diverse set of substrates. Next to BRUCE and Parkin, RNF41 can directly ubiquitinate ErbB3, IL-3, EPO and RARα receptors or downstream signaling molecules such as Myd88, TBK1 and USP8. In this way it can regulate receptor signaling and routing. To further elucidate the molecular mechanism behind the role of RNF41 in intracellular transport we performed an Array MAPPIT (Mammalian Protein-Protein Interaction Trap) screen using an extensive set of proteins derived from the human ORFeome collection...
2017: PloS One
https://www.readbyqxmd.com/read/28506695/d816v-mutation-in-the-kit-gene-activation-loop-has-greater-cell-proliferative-and-anti-apoptotic-ability-than-n822k-mutation-in-core-binding-factor-acute-myeloid-leukemia
#12
Ikuko Omori, Hiroki Yamaguchi, Koichi Miyake, Noriko Miyake, Tomoaki Kitano, Koiti Inokuchi
In core-binding factor acute myeloid leukemia (CBF-AML), there have been conflicting reports regarding the status as an unfavorable prognostic factor of mutation in the KIT gene, the significance of which remains unclear. We previously reported that prognoses differ between the KIT D816V and N822K mutations. In the present study, we compared in vitro the cell-proliferative and anti-apoptotic ability of D816V and N822K. We transduced these KIT mutations into the interleukin-3-dependent cell line TF-1 (TF-1 KIT(D816V), TF-1 KIT(N822K))...
May 12, 2017: Experimental Hematology
https://www.readbyqxmd.com/read/28479592/a-novel-agent-sl-401-induces-anti-myeloma-activity-by-targeting-plasmacytoid-dendritic-cells-osteoclastogenesis-and-cancer-stem-like-cells
#13
A Ray, D S Das, Y Song, V Macri, P Richardson, C L Brooks, D Chauhan, K C Anderson
Novel therapies for multiple myeloma (MM) can target mechanism(s) in the host-MM bone marrow (BM) microenvironment mediating MM progression and chemoresistance. Our studies showed increased numbers of tumor-promoting, immunosuppressive, and drug-resistant plasmacytoid dendritic cells (pDCs) in the MM BM microenvironment. pDC-MM cell interactions upregulate interleukin-3 (IL-3), which stimulates both pDC survival and MM cell growth. Since IL-3R is highly expressed on pDCs in the MM BM milieu, we here targeted pDCs using a novel IL-3R-targeted therapeutic SL-401...
May 8, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28474499/inhibition-of-the-bet-family-of-epigenetic-reader-proteins-a-novel-principle-for-modulating-gene-expression-in-ige-activated-mast-cells
#14
Gianni Garcia-Faroldi, Elin Rönnberg, Mirjana Grujic, Gunnar Pejler
INTRODUCTION: The BET family of bromodomain-containing proteins constitute epigenetic readers that bind to acetylated lysine residues of core histones, thereby translating epigenetic histone marks to effects on gene expression. BET inhibitors are currently emerging as promising therapeutic agents for treatment of various pathological conditions. Here, we explored the potential of using BET inhibition to modulate IgE-mediated responses in mast cells. METHODS: We assessed the effects of BET inhibitors PFI-1, I-BET151, and I-BET762 on responses downstream of mast cell activation through IgE receptor cross-linking...
June 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28459513/effects-and-mechanisms-of-bazhen-decoction-siwu-decoction-and-sijunzi-decoction-on-5-fluorouracil-induced-anemia-in-mice
#15
Yunan Tian, Yuke Xiang, Guoran Wan, Dong Wan, Huifeng Zhu, Tao Wang, Xian Yang
OBJECTIVE: To investigate the effects of Bazhen decoction (BZD), Siwu decoction (SWD) and Sijunzi decoction (SJZD) in mice with anemia induced by 5-fluorouracil (5-FU) and discussed the possible pharmacological hematopoietic mechanism to provide experimental evidence for the clinical use of the three classical prescriptions in the treatment of anemia. METHODS: Anemia was induced by intravenous injection of 5-FU and 80 female Kunming mice were randomly, assigned to oral administration of SWD, SJZD, or BZD daily for 10 days...
August 2016: Journal of Traditional Chinese Medicine, Chung i Tsa Chih Ying Wen Pan
https://www.readbyqxmd.com/read/28445506/phenotype-function-and-differentiation-potential-of-human-monocyte-subsets
#16
Lisa B Boyette, Camila Macedo, Kevin Hadi, Beth D Elinoff, John T Walters, Bala Ramaswami, Geetha Chalasani, Juan M Taboas, Fadi G Lakkis, Diana M Metes
Human monocytes have been grouped into classical (CD14++CD16-), non-classical (CD14dimCD16++), and intermediate (CD14++CD16+) subsets. Documentation of normal function and variation in this complement of subtypes, particularly their differentiation potential to dendritic cells (DC) or macrophages, remains incomplete. We therefore phenotyped monocytes from peripheral blood of healthy subjects and performed functional studies on high-speed sorted subsets. Subset frequencies were found to be tightly controlled over time and across individuals...
2017: PloS One
https://www.readbyqxmd.com/read/28389215/clock-gene-dysregulation-induced-by-chronic-er-stress-disrupts-%C3%AE-cell-function
#17
Yasuharu Ohta, Akihiko Taguchi, Takuro Matsumura, Hiroko Nakabayashi, Masaru Akiyama, Kaoru Yamamoto, Ruriko Fujimoto, Risa Suetomi, Akie Yanai, Koh Shinoda, Yukio Tanizawa
In Wfs1(-/-)A(y)/a islets, in association with endoplasmic reticulum (ER) stress, D-site-binding protein (Dbp) expression decreased and Nuclear Factor IL-3 (Nfil3)/E4 Promoter-binding protein 4 (E4bp4) expression increased, leading to reduced DBP transcriptional activity. Similar alterations were observed with chemically-induced ER stress. Transgenic mice expressing E4BP4 under the control of the mouse insulin I gene promoter (MIP), in which E4BP4 in β-cells is expected to compete with DBP for D-box, displayed remarkable glucose intolerance with severely impaired insulin secretion...
April 2017: EBioMedicine
https://www.readbyqxmd.com/read/28386107/constitutively-active-abl-family-kinases-tel-abl-and-tel-arg-harbor-distinct-leukemogenic-activities-in-vivo
#18
A Yokota, H Hirai, T Shoji, T Maekawa, K Okuda
ABL (ABL1) and ARG (ABL2) are highly homologous to each other in overall domain structure and amino-acid sequence, with the exception of their C termini. As with ABL, translocations that fuse ARG to ETV6/TEL have been identified in patients with leukemia. To assess the in vivo leukemogenic activity of constitutively active ABL and ARG, we generated a bone marrow (BM) transplantation model using the chimeric forms TEL/ABL and TEL/ARG, which have comparable kinase activities. TEL/ABL rapidly induced fatal myeloid leukemia in recipient mice, whereas recipients of TEL/ARG-transduced cells did not develop myeloid leukemia, instead, they succumbed to a long-latency infiltrative mastocytosis that could be adoptively transferred to secondary recipients...
May 5, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28382822/a-chemically-inducible-helper-module-for-detecting-protein-protein-interactions-with-tunable-sensitivity-based-on-kippis
#19
Daiki Kashima, Raiji Kawade, Teruyuki Nagamune, Masahiro Kawahara
As protein-protein interactions (PPIs) play essential roles in regulating their functional consequences in cells, methods to detect PPIs in living cells are desired for correct understanding of intracellular PPIs and pharmaceutical development therefrom. Here we demonstrate a c-kit-based PPI screening (KIPPIS) system in combination with a chemically inducible helper module for detecting PPIs in living mammalian cells. In this system, a mutant of FK506-binding protein 12 (FKBPF36 V) is fused with a protein of interest and the intracellular domain of a receptor tyrosine kinase c-kit...
April 13, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28377320/do-il-3-gm-csf-effect-on-the-myofibroblastic-differentiation-of-human-adipose-derived-stromal-cells
#20
Jae-Sun Lee, Son-Seung Tae, Deok-Yeol Kim, Seung-Kyu Han, Woo-Kyung Kim, Eun-Sang Dhong
BACKGROUND: Capsular contracture is an incurable complication after silicone-based implant surgery. Myofibroblast is the predominant cell in the contracted capsule. We hypothesized that human adipose derive stromal cells (hASCs) together with fibroblast may show a similar phenotypic characteristics of myofibroblast after the treatment of inflammatory cytokines in vitro. MATERIALS AND METHODS: Interleukin 3 (IL-3) and granulocyte macrophage colony stimulating factor (GM-CSF) were treated in the culture of hASCs and HDFs...
April 2, 2017: Experimental Cell Research
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