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Retinoic acid receptors

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https://www.readbyqxmd.com/read/28103535/down-regulation-of-histone-deacetylase-4-5-and-6-as-a-mechanism-of-synergistic-enhancement-of-apoptosis-in-human-lung-cancer-cells-treated-with-the-combination-of-a-synthetic-retinoid-am80-and-green-tea-catechin
#1
Yukiko Oya, Anupom Mondal, Anchalee Rawangkan, Sonthaya Umsumarng, Keisuke Iida, Tatsuro Watanabe, Miki Kanno, Kaori Suzuki, Zhenghao Li, Hiroyuki Kagechika, Koichi Shudo, Hirota Fujiki, Masami Suganuma
(-)-Epigallocatechin gallate (EGCG), a green tea catechin, acts as a synergist with various anticancer drugs, including retinoids. Am80 is a synthetic retinoid with a different structure from all-trans-retinoic acid: Am80 is now clinically utilized as a new drug for relapsed and intractable acute promyelocytic leukemia patients. Our experiments showed that the combination of EGCG and Am80 synergistically induced both apoptosis in human lung cancer cell line PC-9 and up-regulated expressions of growth arrest and DNA damage-inducible gene 153 (GADD153), death receptor 5, and p21(waf1) genes in the cells...
January 8, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28101221/a-complex-translocation-3-17-15-in-acute-promyelocytic-leukemia-confirmed-by-fluorescence-in-situ-hybridization
#2
Yanming Wang, Junjie Ma, Xinguang Liu, Riming Liu, Lingling Xu, Li Wang, Jiannong Cen, Xiaoxia Chu
Acute promyelocytic leukemia (APL) is typified by t(15;17)(q22;q21), generating the promyelocytic leukemia (PML) gene at 15q22 with the retinoic acid α-receptor (RARA) gene at 17q21. The PML-RARA fusion gene is believed to play a vital role in leukemogenesis. A sizeable minority of patients with complex variants of APL have been reported. The present study reports the case of a 33-year-old male with APL carrying a potential complex translocation. The initial symptom was bleeding gums. Chromosomal analysis of the bone marrow cells revealed an atypical 17q aberration...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28099124/browning-of-white-adipose-tissue-lessons-from-experimental-models
#3
Thereza Cristina Lonzetti Bargut, Vanessa Souza-Mello, Marcia Barbosa Aguila, Carlos Alberto Mandarim-de-Lacerda
Beige or brite (brown-in-white) adipocytes are present in white adipose tissue (WAT) and have a white fat-like phenotype that when stimulated acquires a brown fat-like phenotype, leading to increased thermogenesis. This phenomenon is known as browning and is more likely to occur in subcutaneous fat depots. Browning involves the expression of many transcription factors, such as PR domain containing 16 (PRDM16) and peroxisome proliferator-activated receptor (PPAR)-γ, and of uncoupling protein (UCP)-1, which is the hallmark of thermogenesis...
January 18, 2017: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/28091942/all-trans-retinoic-acid-supplementation-prevents-cardiac-fibrosis-and-cytokines-induced-by-methylglyoxal
#4
Umadevi Subramanian, Devipriya Nagarajan
Methylglyoxal (MG), a metabolic intermediate of glycolysis is a precursor for endogeneous production of advanced glycation end-products. The increased production of MG have negative influence over the structure and function of different biomolecules and thus plays an important role in the pathogenesis of diabetic cardiac complications. Retinoic acid (RA), an active metabolite of vitamin A, has a major role in preventing cardiac remodeling and ventricular fibrosis. Hence, the objective of the present study was to determine whether rats administered with all-trans retinoic acid (RA) could attenuate MG induced pathological effects...
January 14, 2017: Glycoconjugate Journal
https://www.readbyqxmd.com/read/28090671/lgp2-plays-an-essential-role-in-hcv-infection-induced-interferon-responses
#5
Lei Hei, Jin Zhong
: Retinoic acid-inducible gene I (RIG-I)-like receptors (RLRs) are cytosolic pattern recognition receptors (PRR) that detect non-self RNA and activate downstream interferon (IFN) signaling. One of the RLRs, Laboratory of genetics and physiology 2 (LGP2) was originally thought to be a negative feedback regulator in RIG-I signaling pathway, but growing evidence indicates LGP2 is one co-factor of Melanoma Differentiation-Associated protein 5 (MDA5) in MDA5-mediated IFN signaling activation...
January 16, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28090317/all-trans-retinoic-acid-enhances-cytotoxic-effect-of-t-cells-with-an-anti-cd38-chimeric-antigen-receptor-in-acute-myeloid-leukemia
#6
Tetsumi Yoshida, Keichiro Mihara, Yoshifumi Takei, Kazuyoshi Yanagihara, Takanori Kubo, Joyeeta Bhattacharyya, Chihaya Imai, Tatsuji Mino, Yoshihiro Takihara, Tatsuo Ichinohe
We reported that T cells with anti-CD38-chimeric antigen receptors (CAR) eliminated B-cell lymphoma cells expressing CD38. To employ anti-CD38-CAR against acute myeloid leukemia (AML) blasts not expressing CD38, it is necessary to induce or increase the intensity of CD38 expression. A lactate dehydrogenase (LDH)-releasing assay and flow cytometry showed that anti-CD38-CAR T cells were cytotoxic against AML lines (THP-1 and CMK) expressing high CD38 levels (>99%), in time- and number of effector-dependent manners...
December 2016: Clinical & Translational Immunology
https://www.readbyqxmd.com/read/28090315/chronic-mucocutaneous-candidiasis-disease-associated-with-inborn-errors-of-il-17-immunity
#7
REVIEW
Satoshi Okada, Anne Puel, Jean-Laurent Casanova, Masao Kobayashi
Chronic mucocutaneous candidiasis (CMC) is characterized by recurrent or persistent infections affecting the nails, skin and oral and genital mucosae caused by Candida spp., mainly Candida albicans. CMC is an infectious phenotype in patients with inherited or acquired T-cell deficiency. Patients with autosomal-dominant (AD) hyper IgE syndrome (HIES), AD signal transducer and activator of transcription 1 (STAT1) gain-of-function, autosomal-recessive (AR) deficiencies in interleukin (IL)-12 receptor β1 (IL-12Rβ1), IL-12p40, caspase recruitment domain-containing protein 9 (CARD9) or retinoic acid-related orphan receptor γT (RORγT) or AR autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy (APECED) develop CMC as a major infectious phenotype that is categorized as Syndromic CMC...
December 2016: Clinical & Translational Immunology
https://www.readbyqxmd.com/read/28089218/nkg2d-signaling-the-immune-subversive-side-of-hdac3
#8
Alicia R Folgueras, Segundo Gonzalez, Alejandro López-Soto
Natural killer (NK) cells are alerted to infected and transformed cells by local upregulation of ligands for the NK-activating receptor NKG2D. In a recent report, Greene et al. unveil a new mechanism that induces the expression of the NKG2D ligand retinoic acid early-inducible (RAE-1) in response to murine cytomegalovirus (MCMV) infection through inhibition of casein kinase 2 (CK2), an activator of the repressor histone deacetylase HDAC3.
January 11, 2017: Trends in Immunology
https://www.readbyqxmd.com/read/28087652/differential-regulation-of-cd103-%C3%AE-e-integrin-expression-in-human-dendritic-cells-by-retinoic-acid-and-toll-like-receptor-ligands
#9
Mandi M Roe, Steve Swain, T Andrew Sebrell, Marisa A Sewell, Madison M Collins, Brian A Perrino, Phillip D Smith, Lesley E Smythies, Diane Bimczok
CD103 (αE integrin) is an important dendritic cell (DC) marker that characterizes functionally distinct DC subsets in mice and humans. However, the mechanism by which CD103 expression is regulated in human DCs and the role of CD103 for DC function are not very well understood. Here, we show that retinoic acid (RA) treatment of human monocyte-derived DCs (MoDCs) increased the ability of the DCs to synthesize RA and induced MoDC expression of CD103 and β7 at the mRNA and protein level. In contrast, RA was unable to induce the expression of CD103 in primary human DCs isolated from the gastric mucosa...
January 13, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28087637/retinoic-acid-receptor-regulation-of-epimorphic-and-homeostatic-regeneration-in-the-axolotl
#10
Matthew Nguyen, Pankhuri Singhal, Judith Piet, Sandra J Shefelbine, Malcolm Maden, S Randal Voss, James R Monaghan
Salamanders are capable of regenerating amputated limbs by generating a mass of lineage-restricted cells called a blastema. Blastemas only generate structures distal to their origin unless treated with retinoic acid (RA), which results in proximodistal (PD) limb duplications. Little is known about the transcriptional network that regulates PD duplication. In this study, we target specific retinoic acid receptors (RARs) to either PD duplicate (RA treatment or RARγ agonist) or truncate (RARβ antagonist) regenerating limbs...
January 13, 2017: Development
https://www.readbyqxmd.com/read/28075463/expression-of-the-promyelocytic-leukemia-protein-without-the-nuclear-localization-signal-as-a-novel-diagnostic-marker-for-acute-promyelocytic-leukemia
#11
Ting Xu, Xiao-Qun Yang, Kai-Ling Jiang, Hui Wang, Peng-Peng Ma, Liang Zhong, Bei-Zhong Liu
Promyelocytic leukemia-retinoic acid receptor α (PML-RARα) is a fusion protein generated by the t(15;17)(q22;q12) translocation associated with acute promyelocytic leukemia (APL). PML-RARα is cleaved by neutrophil elastase, an early myeloid-specific serine protease, leading to translocation of the nuclear localization signal (NLS) of the PML protein to the N-terminal of RARα, and the mutational product PML(NLS-). The present study was designed to analyze the role of the NLS in mediating PML transport into the nucleus and to evaluate the value of measuring NLS translocation in the early diagnosis of APL...
February 2017: Oncology Reports
https://www.readbyqxmd.com/read/28073693/crosstalk-between-cytoplasmic-rig-i-and-sting-sensing-pathways
#12
REVIEW
Alessandra Zevini, David Olagnier, John Hiscott
Detection of evolutionarily conserved molecules on microbial pathogens by host immune sensors represents the initial trigger of the immune response against infection. Cytosolic receptors sense viral and intracellular bacterial genomes, as well as nucleic acids produced during replication. Once activated, these sensors trigger multiple signaling cascades, converging on the production of type I interferons and proinflammatory cytokines. Although distinct classes of receptors are responsible for the RNA and DNA sensing, the downstream signaling components are physically and functionally interconnected...
January 7, 2017: Trends in Immunology
https://www.readbyqxmd.com/read/28070163/development-of-reverse-transcription-loop-mediated-isothermal-amplification-for-simple-and-rapid-detection-of-promyelocytic-leukemia-retinoic-acid-receptor-%C3%AE-mrna
#13
Yuki Hashimoto, Yuki Hatayama, Nao Kojima, Shota Morishita, Satoko Matsumoto, Yuzuru Hosoda, Ayako Hara, Toru Motokura
BACKGROUND: Acute promyelocytic leukemia (APL) is a disease characterized by expression of Promyelocytic Leukemia-Retinoic Acid Receptor α (PML-RARα) chimeric mRNA. Although APL is curable, early death due to hemorrhage is a major problem. Here, we report the development of a simple and rapid diagnostic method for APL based on reverse transcription loop-mediated isothermal amplification (RT-LAMP). METHODS: An RT-LAMP primer set was designed to detect three types of PML-RARα mRNA in a single reaction...
December 2016: Yonago Acta Medica
https://www.readbyqxmd.com/read/28065858/role-of-transglutaminase-2-in-pac1-receptor-mediated-protection-against-hypoxia-induced-cell-death-and-neurite-outgrowth-in-differentiating-n2a-neuroblastoma-cells
#14
Alanood S Algarni, Alan J Hargreaves, John M Dickenson
The PAC1 receptor and tissue transglutaminase (TG2) play important roles in neurite outgrowth and modulation of neuronal cell survival. In this study, we investigated the regulation of TG2 activity by the PAC1 receptor in retinoic acid-induced differentiating N2a neuroblastoma cells. TG2 transamidase activity was determined using an amine incorporation and a peptide cross linking assay. In situ TG2 activity was assessed by visualising the incorporation of biotin-X-cadaverine using confocal microscopy. TG2 phosphorylation was monitored via immunoprecipitation and Western blotting...
January 5, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28065603/retinoic-acid-induces-hypersegmentation-and-enhances-cytotoxicity-of-neutrophils-against-cancer-cells
#15
Sanjeeb Shrestha, Shin-Yeong Kim, Young-Jin Yun, Jun-Kyu Kim, Jae Man Lee, Minsang Shin, Dong-Keun Song, Chang-Won Hong
Hypersegmentation of nuclei is considered a distinct characteristic of the antitumoral phenotype of neutrophils. Retinoic acid, a metabolite of retinol, reorganizes and induces segmentation of the nucleus during the differentiation of neutrophils. However, the role of retinoic acid in the phenotype polarization of neutrophils has not been fully established. Here, we investigated the effect of retinoic acid on phenotype polarization of neutrophils. Retinoic acid-induced the hypersegmentation of human neutrophils via retinoic acid receptors and mTOR pathways...
January 5, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28060197/identical-twins-discordant-for-metopic-craniosynostosis-evidence-of-epigenetic-influences
#16
Suresh N Magge, Kendall Snyder, Aparna Sajja, Tiffani A DeFreitas, Sean E Hofherr, Richard E Broth, Robert F Keating, Gary F Rogers
Craniosynostosis, or premature fusion of the cranial sutures, occurs in approximately 1 in 2500 live births. The genetic causes and molecular basis of these disorders have greatly expanded over the last 2 decades, with numerous causative and contributory mutations having been identified. The role of fibroblast growth factor receptor (FGFR) mutations in the etiology of certain eponymous forms of craniosynostosis is now well elucidated; the most common syndromes associated with craniosynostosis are Pfeifer (FGFR1, FGFR2), Apert (FGFR2), Crouzon (FGFR2), Saethre-Chotzen (TWIST1), Jackson-Weiss (FGFR2), Greig (GL13), and Muenke (FGFR3) syndromes...
January 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28057020/rna-virus-receptor-rig-i-monitors-gut-microbiota-and-inhibits-colitis-associated-colorectal-cancer
#17
Houbao Zhu, Wang-Yang Xu, Zhiqiang Hu, Hongxin Zhang, Yan Shen, Shunyuan Lu, Chaochun Wei, Zhu-Gang Wang
BACKGROUND: Retinoic acid-inducible gene-I (Rig-I) is an intracellular viral RNA receptor, which specifically recognizes double-stranded viral RNA initiating antiviral innate immunity. Increasing evidences showed that Rig-I had broader roles in antibacterial immunity and cancer protection. However, the potential roles and mechanisms of Rig-I in gut flora regulation and colorectal cancer (CRC) progression remain unclear. METHODS: Immunohistochemistry was performed to detect Rig-I protein in 38 pairs of CRC tissue and matched adjacent mucosa, and immunofluorescence and western blot were also used to detect Rig-I protein expression in AOM/DSS-induced mice CRC samples...
January 5, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28054069/challenge-and-perspective-the-relevance-of-ultraviolet-uv-radiation-and-the-vitamin-d-endocrine-system-vdes-for-psoriasis-and-other-inflammatory-skin-diseases
#18
Jörg Reichrath, Roman Saternus, Thomas Vogt
During evolution, the ability of many organisms to synthesize vitamin D photochemically represented, and still represents, a major driving factor for the development of life on earth. In humans because not more than 10-20% of the requirement of vitamin D can be satisfied by the diet (under most living conditions in the US and Europe), the remaining 80-90% need to be photochemically synthesized in the skin through the action of solar or artificial ultraviolet-B (UV-B) radiation. The skin is a key organ of the human body's vitamin D endocrine system (VDES), representing both the site of vitamin D synthesis and a target tissue for biologically active vitamin D metabolites...
January 5, 2017: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/28054037/gene-expression-alterations-in-the-medial-prefrontal-cortex-and-blood-cells-in-a-mouse-model-of-depression-during-menopause
#19
Shigeo Miyata, Masashi Kurachi, Noriko Sakurai, Yuchio Yanagawa, Yasuki Ishizaki, Masahiko Mikuni, Masato Fukuda
AIMS: The prevalence of major depressive disorder (MDD) is higher in women than in men, and this may be due to the decline in estrogen levels that occurs during the menopausal transition. We studied the biological alterations in the medial prefrontal cortex (mPFC), which is a region that is highly implicated in the neurobiology of MDD, and the blood cells (BCs) of ovariectomized (OVX) mice subjected to chronic mild stress (CMS), which represents a mouse model of depression during menopause...
December 2016: Heliyon
https://www.readbyqxmd.com/read/28053236/cd8-t-cells-that-coexpress-ror%C3%AE-t-and-t-bet-are-functionally-impaired-and-expand-in-patients-with-distal-bile-duct-cancer
#20
Stalin Chellappa, Harald Hugenschmidt, Morten Hagness, Saranya Subramani, Espen Melum, Pål Dag Line, Knut-Jørgen Labori, Gro Wiedswang, Kjetil Taskén, Einar Martin Aandahl
CD8(+) T cells that express retinoic acid-related orphan receptor (ROR)γt (TC17 cells) have been shown to promote procarcinogenic inflammation and contribute to a tolerogenic microenvironment in tumors. We investigated their phenotype and functional properties in relationship to the pathogenesis of human distal bile duct cancer (DBDC). DBDC patients had an elevated level of type 17 immune responses and the frequency of CD8(+)RORγt(+) T cells (TC17 cells) was increased in peripheral blood. The CD8(+)RORγt(+) T cells represented a highly activated subset and produced IL-17A in equal amount as CD4(+)RORγt(+) T cells (TH17 cells)...
January 4, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
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