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https://www.readbyqxmd.com/read/28530121/glucocorticoids-retain-bi-potent-fibroblast-progenitors-during-alveolar-septation-in-mice
#1
Stephen E McGowan, Diann M McCoy
Glucocorticoids have been widely used and exert pleiotropic effects on alveolar structure and function, but do not improve the long-term clinical outcomes for patients with bronchopulmonary dysplasia, emphysema, or interstitial lung diseases. Treatments which foster alveolar regeneration could substantially improve the long-term outcomes for such patients. One approach to alveolar regeneration is to stimulate and guide intrinsic alveolar progenitors along developmental pathways used during secondary septation...
May 21, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28512785/clinical-immunological-molecular-analyses-and-outcomes-of-iranian-patients-with-lrba-deficiency-a-longitudinal-study
#2
Gholamreza Azizi, Hassan Abolhassani, Seyed Alireza Mahdaviani, Zahra Chavoshzadeh, Peyman Eshghi, Reza Yazdani, Fatemeh Kiaee, Mohammadreza Shaghaghi, Javad Mohammadi, Nima Rezaei, Lennart Hammarström, Asghar Aghamohammadi
BACKGROUND: LPS-responsive beige-like anchor protein (LRBA) deficiency is a combined immunodeficiency caused by mutation in LRBA gene. The patients have a variety of clinical symptoms including hypogammaglobulinemia, recurrent infections, autoimmunity and enteropathy. METHODS: A total of 17 LRBA-deficient patients were enrolled in this longitudinal study. For all patients, demographic information, clinical records, laboratory and molecular data were collected. RESULTS: Hypogammaglobulinemia were reported in 14 (82...
May 17, 2017: Pediatric Allergy and Immunology
https://www.readbyqxmd.com/read/28507796/lyg1-exerts-antitumor-function-through-promoting-the-activation-proliferation-and-function-of-cd4-t-cells
#3
Huihui Liu, Yanfei Zhang, Zhengyang Liu, Pingzhang Wang, Xiaoning Mo, Weiwei Fu, Wanchang Liu, Yingying Cheng, Wenling Han
Identification of novel stimulatory cytokines with antitumor function would have great value in tumor immunotherapy investigations. Here, we report LYG1 (Lysozyme G-like 1) identified through the strategy of Immunogenomics as a novel classical secretory protein with tumor-inhibiting function. LYG1 recombinant protein (rhLYG1) could significantly suppress the growth of B16 tumors in WT B6 mice, but not in SCID-beige mice, Rag1(-/-) mice, CD4(+)- or CD8(+) T cell-deleted mice. It could increase the number of CD4(+) and CD8(+) T cells in tumor-infiltrating lymphocytes, tumor-draining lymph nodes, and spleens, and promote IFNγ production by T cells in tumor-bearing mice...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28507197/muscle-adipose-tissue-cross-talk
#4
Kristin I Stanford, Laurie J Goodyear
Exercise training results in adaptations to both skeletal muscle and white adipose tissue (WAT) and protects against metabolic disorders including obesity and type 2 diabetes. Exercise-induced adaptations include an altered profile of secreted proteins, both myokines (from skeletal muscle) and adipokines (from adipose tissue). These secreted proteins may act in an endocrine manner to facilitate tissue-to-tissue communication and "cross talk," likely working together to improve overall metabolic health. Some studies suggest that contracting skeletal muscles release myokines that may function to alter the phenotype of WAT, including WAT "beiging," in which there is increased expression of beige marker genes and increased presence of multilocular cells within the WAT...
May 15, 2017: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/28502825/treatment-of-severe-forms-of-lps-responsive-beige-like-anchor-protein-lrba-deficiency-by-allogeneic-hematopoietic-stem-cell-transplantation
#5
Markus G Seidel, Katrin Böhm, Figen Dogu, Austen Worth, Adrian Thrasher, Benoit Florkin, Aydan İkincioğulları, Anke Peters, Shahrzad Bakhtiar, Marie Meeths, Polina Stepensky, Isabelle Meyts, Svetlana O Sharapova, Laura Gámez-Díaz, Lennart Hammarström, Stephan Ehl, Bodo Grimbacher, Andrew R Gennery
LRBA deficiency, a life-threatening immunodeficiency/autoimmunity disorder, was treated by HSCT in 12 patients, four of whom died from transplant-related causes. Six patients were cured without further need of immunosuppression, and two are in partial remission.
May 10, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28467890/brown-and-brite-adipocytes-same-function-but-different-origin-and-response
#6
REVIEW
Dinh-Toi Chu, Barbara Gawronska-Kozak
Inducing brown adipocytes in white adipose tissues is a promising target to combat obesity and its related disorders in human beings. This goal has been especially encouraged by new important discoveries of human brown adipose tissues. The accumulating evidence confirms the presence of active brown adipocytes, not only in newborns, but also in adult humans. In rodents, there are two populations of the Ucp1-expressing adipocytes with well characterized-thermogenic functions, classical interscapular brown adipocytes and brite/beige adipocytes (brown adipocytes that are induced in white adipose tissues)...
April 30, 2017: Biochimie
https://www.readbyqxmd.com/read/28465400/the-significance-of-beige-and-brown-fat-in-humans
#7
Florian W Kiefer
Promotion of brown adipose tissue (BAT) activity or browning of white adipose tissue has shown great potential as anti-obesity strategy in numerous preclinical models. The discovery of active BAT in humans and the recent advances in the understanding of human BAT biology and function have significantly propelled this field of research. Pharmacological stimulation of energy expenditure to counteract obesity has always been an intriguing therapeutic concept; with the identification of the specific molecular pathways of brown fat function this idea has now become as realistic as ever...
May 2, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28461471/lsd1-prevents-age-programed-loss-of-beige-adipocytes
#8
Delphine Duteil, Milica Tosic, Dominica Willmann, Anastasia Georgiadi, Toufike Kanouni, Roland Schüle
Aging is accompanied by major changes in adipose tissue distribution and function. In particular, with time, thermogenic-competent beige adipocytes progressively gain a white adipocyte morphology. However, the mechanisms controlling the age-related transition of beige adipocytes to white adipocytes remain unclear. Lysine-specific demethylase 1 (Lsd1) is an epigenetic eraser enzyme positively regulating differentiation and function of adipocytes. Here we show that Lsd1 levels decrease in aging inguinal white adipose tissue concomitantly with beige fat cell decline...
May 1, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28440698/therapeutic-peg-ceramide-nanomicelles-synergize-with-salinomycin-to-target-both-liver-cancer-cells-and-cancer-stem-cells
#9
Meiping Wang, Fangyuan Xie, Xikai Wen, Han Chen, Hai Zhang, Junjie Liu, He Zhang, Hao Zou, Yuan Yu, Yan Chen, Zhiguo Sun, Xinxia Wang, Guoqing Zhang, Chuan Yin, Duxin Sun, Jie Gao, Beige Jiang, Yanqiang Zhong, Ying Lu
AIM: Salinomycin (SAL)-loaded PEG-ceramide nanomicelles (SCM) were prepared to target both liver cancer cells and cancer stem cells. MATERIALS & METHODS: The synergistic ratio of SAL/PEG-ceramide was evaluated to prepare SCM, and the antitumor activity of SCM was examined both in vitro and in vivo. RESULTS: SAL/PEG-ceramide molar ratio of 1:4 was chosen as the synergistic ratio, and SCM showed superior cytotoxic effect and increased apoptosis-inducing activity in both liver cancer cells and cancer stem cells...
May 2017: Nanomedicine
https://www.readbyqxmd.com/read/28439667/myricetin-induced-brown-adipose-tissue-activation-prevents-obesity-and-insulin-resistance-in-db-db-mice
#10
Tao Hu, Xiaoxue Yuan, Gang Wei, Haoshu Luo, Hyuek Jong Lee, Wanzhu Jin
PURPOSE: Myricetin, a dietary flavonoid, is effective in the treatment of obesity and insulin resistance by increasing glucose transport and lipogenesis in adipocyte and diminishing systemic inflammation in obesity. However, it has not been revealed yet whether myricetin is associated with brown adipose tissue (BAT) activation that tightly mediates systemic energy metabolism. Therefore, this study assessed whether myricetin activated brown adipose tissue in db/db mouse. METHODS: Myricetin (400 mg/kg) in distilled water was fed daily by oral gavage to leptin receptor-deficient db/db male mice at 4 weeks of age for 14 weeks...
April 24, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28431377/metabolic-regulation-and-the-anti-obesity-perspectives-of-human-brown-fat
#11
REVIEW
Camilla Scheele, Søren Nielsen
Activation of brown adipose tissue (BAT) in adult humans increase glucose and fatty acid clearance as well as resting metabolic rate, whereas a prolonged elevation of BAT activity improves insulin sensitivity. However, substantial reductions in body weight following BAT activation has not yet been shown in humans. This observation raise the possibility for feedback mechanisms in adult humans in terms of a brown fat-brain crosstalk, possibly mediated by batokines, factors produced by and secreted from brown fat...
April 11, 2017: Redox Biology
https://www.readbyqxmd.com/read/28427098/opa1-in-lipid-metabolism-function-of-opa1-in-lipolysis-and-thermogenesis-of-adipocytes
#12
Dinh-Toi Chu, Yang Tao, Kjetil Taskén
OPA1 (Optic Atrophy 1) is a mitochondrial GTPase known to regulate fission of mitochondria. It was recently also shown to locate on lipid droplets in adipocytes where it functions as an A-kinase anchoring protein (AKAP) that mediates adrenergic control of lipolysis by facilitating PKA phosphorylation of perilipin (Plin1). In brown adipocytes indirect evidence support the notion that OPA1 regulation of fission serves to increase thermogenesis, which thereby contributes to dissipation of energy. In white adipocytes, OPA1 located on lipid droplets serves as a gatekeeper to control lipolysis induced by adrenergic agonists...
April 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28408241/maternal-retinoids-increase-pdgfr%C3%AE-progenitor-population-and-beige-adipogenesis-in-progeny-by-stimulating-vascular-development
#13
Bo Wang, Xing Fu, Xingwei Liang, Zhixiu Wang, Qiyuan Yang, Tiande Zou, Wei Nie, Junxing Zhao, Pengfei Gao, Mei-Jun Zhu, Jeanene M de Avila, Joseph Maricelli, Buel D Rodgers, Min Du
Maternal vitamin A intake varies but its impact on offspring metabolic health is unknown. Here we found that maternal vitamin A or retinoic acid (RA) administration expanded PDGFRα(+) adipose progenitor population in progeny, accompanied by increased blood vessel density and enhanced brown-like (beige) phenotype in adipose tissue, protecting offspring from obesity. Blockage of retinoic acid signaling by either BMS493 or negative RA receptor (RARαDN) over-expression abolished the increase in blood vessel density, adipose progenitor population, and beige adipogenesis stimulated by RA...
April 2017: EBioMedicine
https://www.readbyqxmd.com/read/28385602/svct-2-determines-the-sensitivity-to-ascorbate-induced-cell-death-in-cholangiocarcinoma-cell-lines-and-patient-derived-xenografts
#14
Changzheng Wang, Hongwei Lv, Wen Yang, Ting Li, Tian Fang, Guishuai Lv, Qin Han, Liwei Dong, Tianyi Jiang, Beige Jiang, Guangshun Yang, Hongyang Wang
Cholangiocarcinoma (CC) is a devastating malignancy with late diagnosis and poor response to conventional chemotherapy. Recent studies have revealed anti-cancer effect of vitamin C (l-ascorbic acid, ascorbate) in several types of cancer. However, the effect of l-ascorbic acid (AA) in CC remains elusive. Herein, we demonstrated that AA induced cytotoxicity in CC cells by generating intracellular reactive oxygen species (ROS), and subsequently DNA damage, ATP depletion, mTOR pathway inhibition. Moreover, AA worked synergistically with chemotherapeutic agent cisplatin to impair CC cells growth both in vitro and in vivo...
July 10, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28380374/mitochondrial-patch-clamp-of-beige-adipocytes-reveals-ucp1-positive-and-ucp1-negative-cells-both-exhibiting-futile-creatine-cycling
#15
Ambre M Bertholet, Lawrence Kazak, Edward T Chouchani, Marta G Bogaczyńska, Ishan Paranjpe, Gabrielle L Wainwright, Alexandre Bétourné, Shingo Kajimura, Bruce M Spiegelman, Yuriy Kirichok
Cold and other environmental factors induce "browning" of white fat depots-development of beige adipocytes with morphological and functional resemblance to brown fat. Similar to brown fat, beige adipocytes are assumed to express mitochondrial uncoupling protein 1 (UCP1) and are thermogenic due to the UCP1-mediated H(+) leak across the inner mitochondrial membrane. However, this assumption has never been tested directly. Herein we patch clamped the inner mitochondrial membrane of beige and brown fat to provide a direct comparison of their thermogenic H(+) leak (IH)...
April 4, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28370281/new-insights-into-the-local-and-systemic-functions-of-sclerostin-regulation-of-quiescent-bone-lining-cells-and-beige-adipogenesis-in-peripheral-fat-depots
#16
Jesus Delgado-Calle, Teresita Bellido
No abstract text is available yet for this article.
May 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28368209/enhanced-cytotoxic-effect-of-camptothecin-nanosponges-in-anaplastic-thyroid-cancer-cells-in-vitro-and-in-vivo-on-orthotopic-xenograft-tumors
#17
Casimiro Luca Gigliotti, Benedetta Ferrara, Sergio Occhipinti, Elena Boggio, Giuseppina Barrera, Stefania Pizzimenti, Mirella Giovarelli, Roberto Fantozzi, Annalisa Chiocchetti, Monica Argenziano, Nausicaa Clemente, Francesco Trotta, Caterina Marchiò, Laura Annaratone, Renzo Boldorini, Umberto Dianzani, Roberta Cavalli, Chiara Dianzani
Anaplastic carcinoma of the thyroid (ATC) is a lethal human malignant cancer with median survival of 6 months. To date, no treatment has substantially changed its course, which makes urgent need for the development of novel drugs or novel formulations for drug delivery. Nanomedicine has enormous potential to improve the accuracy of cancer therapy by enhancing availability and stability, decreasing effective doses and reducing side effects of drugs. Camptothecin (CPT) is an inhibitor of DNA topoisomerase-I with several anticancer properties but has poor solubility and a high degradation rate...
November 2017: Drug Delivery
https://www.readbyqxmd.com/read/28346411/the-cold-induced-lipokine-12-13-dihome-promotes-fatty-acid-transport-into-brown-adipose-tissue
#18
Matthew D Lynes, Luiz O Leiria, Morten Lundh, Alexander Bartelt, Farnaz Shamsi, Tian Lian Huang, Hirokazu Takahashi, Michael F Hirshman, Christian Schlein, Alexandra Lee, Lisa A Baer, Francis J May, Fei Gao, Niven R Narain, Emily Y Chen, Michael A Kiebish, Aaron M Cypess, Matthias Blüher, Laurie J Goodyear, Gökhan S Hotamisligil, Kristin I Stanford, Yu-Hua Tseng
Brown adipose tissue (BAT) and beige adipose tissue combust fuels for heat production in adult humans, and so constitute an appealing target for the treatment of metabolic disorders such as obesity, diabetes and hyperlipidemia. Cold exposure can enhance energy expenditure by activating BAT, and it has been shown to improve nutrient metabolism. These therapies, however, are time consuming and uncomfortable, demonstrating the need for pharmacological interventions. Recently, lipids have been identified that are released from tissues and act locally or systemically to promote insulin sensitivity and glucose tolerance; as a class, these lipids are referred to as 'lipokines'...
May 2017: Nature Medicine
https://www.readbyqxmd.com/read/28340549/long-term-in-vivo-monitoring-of-adult-derived-human-liver-stem-progenitor-cells-by-bioluminescence-imaging-pet-and-contrast-enhanced-ct
#19
Mei-Ju Hsu, Julie Prigent, Pierre-Edouard Dollet, Joachim Ravau, Lionel Larbanoix, Gaetan Van Simaeys, Anne Bol, Vincent Grégoire, Serge Goldman, Gisèle Deblandre, Mustapha Najimi, Etienne Sokal, Catherine Lombard
Adult-derived human liver stem/progenitor cells (ADHLSCs) have the potential to alleviate liver injury. However, the optimal delivery route and long-term biodistribution of ADHLSCs remains unclear. In this paper, we used a triple fusion reporter system to determine the kinetic differences in the biodistribution of ADHLSCs following intrasplenic (IS) and intrahepatic (IH) administration in SCID-beige mice. ADHLSCs were transduced with a lentiviral vector expressing a triple-fusion reporter comprising renilla luciferase, monomeric red fluorescent protein and truncated HSV-1 thymidine kinase...
March 24, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28338809/resveratrol-derivative-btm-0512-mitigates-obesity-by-promoting-beige-remodeling-of-subcutaneous-preadipocytes
#20
Qingqing Li, Kuansong Wang, Yipeng Ma, Chunxiang Qin, Changsheng Dong, Ping Jin, Yan Wu, Xiaoming Xiong, Niansheng Li, Changping Hu, Jun Peng, Zhichun Yang
Recent studies revealed that sirtuin 1 (SIRT1) is involved in the regulation of energy metabolism and its agonist resveratrol showed anti-obesity effect. This study aims to determine whether BTM-0512, a novel derivative of resveratrol, acts as an antagonist of obesity and to explore its possible mechanisms. High-fat diet (HFD)-induced obese mice were intragastrically administered with BTM-0512 (5, 10, and 20 mg/kg/day) or resveratrol (10 mg/kg/day). It was found that the body weight, Lee's index, ratio of visceral adipose tissue (VAT) to body weight, and blood glucose were significantly reduced in BTM-0512-treated mice when compared with those in mice treated with resveratrol...
February 24, 2017: Acta Biochimica et Biophysica Sinica
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