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Retinoic Acid 0.05%

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https://www.readbyqxmd.com/read/29596381/resveratrol-suppresses-the-growth-and-enhances-retinoic-acid-sensitivity-of-anaplastic-thyroid-cancer-cells
#1
Yi-Tian Li, Xiao-Ting Tian, Mo-Li Wu, Xu Zheng, Qing-You Kong, Xiao-Xin Cheng, Guang-Wen Zhu, Jia Liu, Hong Li
Anaplastic thyroid cancer (ATC) is a highly lethal undifferentiated malignancy without reliable therapies. Retinoic acid (RA) has been employed to promote redifferentiation of thyroid cancers by increasing their I131 uptake and radio-sensitivity, but its effect(s) on ATCs has not yet been ascertained. Likewise, resveratrol induces cancer redifferentiation but, also in this case, its effects on ATCs remain unknown. These issues have been addresses in the current study using three human ATC cell lines (THJ-11T, THJ-16T, and THJ-21T) through multiple experimental approaches...
March 29, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29554041/pd-1-pd-l1-pathway-participates-in-gastric-surgery-induced-imbalance-of-th17-treg-cells-in-mice
#2
Linlin Dong, Xiaoyu Zheng, Kun Wang, Guonian Wang, Huichao Zou
BACKGROUND: The T-helper 17 (Th17)/regulatory T (Treg) balance is essential for immune homeostasis. But the effects of gastric surgery on this balance remain unclear. The aim of present study is to identify the influence of gastric surgery on Th17/Treg balance and the role of programmed death 1 (PD-1)/programmed cell death-ligand 1 (PD-L1) pathway in this process. METHODS: Mice were divided into Control, Sham and Surgery group randomly. Animals in Surgery group accepted partial gastrectomy...
March 16, 2018: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29541184/a-role-for-the-clock-period-circadian-regulator-2-gene-in-regulating-the-clock-gene-network-in-human-oral-squamous-cell-carcinoma-cells
#3
Yiran Ao, Qin Zhao, Kai Yang, Gang Zheng, Xiaoqing Lv, Xiaoli Su
Clock genes are the core of the circadian rhythms in the human body and are important in regulating normal physiological functions. To date, research has indicated that the clock gene, period circadian clock 2 ( PER2 ), is downregulated in numerous types of cancer, and that it is associated with cancer occurrence and progression via the regulation of various downstream cell cycle genes. However, it remains unclear whether the decreased expression of PER2 influences the expression of other clock genes in cancer cells...
April 2018: Oncology Letters
https://www.readbyqxmd.com/read/29436793/gonadotropin-regulation-of-retinoic-acid-activity-in-the-testis
#4
Seyedmehdi Nourashrafeddin, Batool Hosseini Rashidi
Initiation of spermatogenesis in primates is triggered at puberty by an increase in gonadotropins; i.e., follicle-stimulating hormone (FSH) and luteinizing hormone (LH). Prior to puberty, testis of the monkey contains only undifferentiated germ cells. However, sermatogonial differentiation and spermatogenesis may be initiated prior to puberty after stimulation with exogenous LH and FSH. Retinoic acid (RA) signaling is considered to be a major component that drives spermatogonial differentiation. We were interested in evaluating the relative role of LH and FSH, either alone or in combination, in regulating the retinoic acid signaling in monkey testis...
January 2018: Acta Medica Iranica
https://www.readbyqxmd.com/read/29344252/itraq-based-quantitative-proteomic-analysis-and-bioinformatics-study-of-proteins-in-retinoblastoma
#5
Yong Cheng, Qingyu Meng, Lvzhen Huang, Xuan Shi, Jing Hou, Xiaoxin Li, Jianhong Liang
The aim of the present study was to analyze proteins in the aqueous humor (AH) of patients' retinoblastoma (RB), and investigate their potential role in RB using the comparative proteomic technique of isobaric tags for relative and absolute quantitation (iTRAQ) coupled with offline two-dimensional liquid chromatography-tandem mass spectrometry. A total of 0.1 ml AH was collected from 10 children with RB (mean age, 3.8 years; range, 2-5 years) and patients with senile cataracts (mean age, 70.4 years; range, 65-79 years), which was used as the control...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344234/an-oncogenic-function-of-retinoic-acid-receptor-%C3%AE-in-the-development-of-laryngeal-squamous-cell-carcinoma
#6
Cheng-Fu Cai, Cun-Shan Liu, Han-Jing Shang-Guan, Cai-Hong Yang, Xian-Yang Luo, Dong-Yan Shen, Shu-Yu Yang
The aberrant expression of retinoic acid receptor-α (RARα) has been reported in various types of cancer. However, its association with the prognosis and development of laryngeal squamous cell carcinoma (LSCC) has not yet been determined. Therefore, the present study aimed to examine the expression and function of RARα in patients with LSCC. The expression of RARα in LSCC tissues was investigated using immunostaining. An MTT assay and flow cytometry analysis were also performed to investigate the function of RARα in the proliferation and cell cycle of LSCC cells...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344218/atra-increases-iodine-uptake-and-inhibits-the-proliferation-and-invasiveness-of-human-anaplastic-thyroid-carcinoma-sw1736-cells-involvement-of-%C3%AE-catenin-phosphorylation-inhibition
#7
Ling Lan, Spyros Basourakos, Dai Cui, Xuemei Zuo, Wei Deng, Lili Huo, Hailing Chen, Guoying Zhang, Lili Deng, Bingyin Shi, Yong Luo
All-trans-retinoic acid (ATRA) can enhance iodine uptake capability of thyroid tumors, but the mechanisms remain poorly understood. The aim of the present study was to investigate the effects of ATRA on isotope susceptibility, proliferation and invasion of anaplastic thyroid carcinoma (ATC) and potential mechanisms. SW1736 cells were treated with 1 µmol/l ATRA or 1% ethanol for 5 days. A cell line stably expressing β-catenin-shRNA was established. An iodine uptake assay was performed using 125I. Proliferation and invasiveness were tested using MTT and Transwell assays, respectively...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29301505/optimising-the-chick-chorioallantoic-membrane-xenograft-model-of-neuroblastoma-for-drug-delivery
#8
Rasha Swadi, Grace Mather, Barry L Pizer, Paul D Losty, Violaine See, Diana Moss
BACKGROUND: Neuroblastoma is a paediatric cancer that despite multimodal therapy still has a poor outcome for many patients with high risk tumours. Retinoic acid (RA) promotes differentiation of some neuroblastoma tumours and cell lines, and is successfully used clinically, supporting the view that differentiation therapy is a promising strategy for treatment of neuroblastoma. To improve treatment of a wider range of tumour types, development and testing of novel differentiation agents is essential...
January 4, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29298528/s-nitrosoglutathione-formation-at-gastric-ph-is-augmented-by-ascorbic-acid-and-by-the-antioxidant-vitamin-complex-resiston
#9
Vitali I Stsiapura, Ilya Bederman, Ivan I Stepuro, Tatiana S Morozkina, Stephen J Lewis, Laura Smith, Benjamin Gaston, Nadzeya Marozkina
CONTEXT: Exogenous nitrogen oxides must be made bioavailable to sustain normal physiology because nitric oxide synthase (NOS) deficient mice are viable. In the stomach, S-nitrosoglutathione (GSNO) is formed from ingested nitrite and high levels of airway glutathione (GSH) that are cleared and swallowed. However, gastric GSNO may be broken down by nutrients like ascorbic acid (AA) before it is absorbed. OBJECTIVE: To study the effect of AA on GSNO formation and stability...
December 2018: Pharmaceutical Biology
https://www.readbyqxmd.com/read/29229524/toxic-responses-of-sox2-gene-in-the-regeneration-of-the-earthworm-eisenia-foetida-exposed-to-retnoic-acid
#10
Jing Tao, Wei Rong, Xiaoping Diao, Hailong Zhou
Exogenous retinoic acid delays and disturbs the regeneration of Eisenia foetida. The stem cell pluripotency factor, Sox2, can play a crucial role in cell reprogramming and dedifferentiation. In this study, we compared the regeneration of Eisenia foetida in different segments after amputation and the effects of retinoic acid on the regeneration of different segments. The results showed that the regeneration speed of the head and tail was slightly faster than the middle part, and retinoic acid disrupted and delayed the regeneration of the earthworm...
January 2018: Comparative Biochemistry and Physiology. Toxicology & Pharmacology: CBP
https://www.readbyqxmd.com/read/29207193/all%C3%A2-trans-retinoic-acid-reduces-endothelin%C3%A2-1-expression-and-increases-endothelial-nitric-oxide-synthase-phosphorylation-in-rabbits-with-atherosclerosis
#11
Linlin Tao, Yumei Nie, Ganxian Wang, Yanhui Ding, Junli Ding, Fangyuan Xiong, Songtao Tang, Yuan Wang, Birong Zhou, Huaqing Zhu
All-trans retinoic acid (ATRA) is a natural derivative of vitamin A that ameliorates atherosclerosis (AS) by regulating inflammatory factors. However, studies concerning the role of retinoic acid in artery endothelial function are rare. Therefore, the present study investigated its role in regulating the production of endothelin‑1 (ET‑1) and nitric oxide (NO) in rabbits with AS. The rabbits were randomly divided into 3 groups: The control group was administered an ordinary diet, while the high fat group and the ATRA drug intervention group were administered a high fat diet...
February 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29204175/preparation-and-in-vitro-characterization-of-retinoic-acid-loaded-poly-%C3%AE%C2%B5-caprolactone-poly-ethylene-glycol-poly-%C3%AE%C2%B5-caprolactone-micelles
#12
Ebrahim Shakiba, Saeedeh Khazaei, Marziyeh Hajialyani, Bandar Astinchap, Ali Fattahi
In order to achieve the controlled release of all-trans-retinoic acid (ATRA), poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) (PCL-PEG-PCL) copolymer with average molecular weight of 5.34 kDa was synthesized. The nanosized micelles were prepared from copolymer by nano-precipitation method. Critical association concentration (CAC) of micelles was measured by fluorimetry and results indicated low CAC value of micelles (1.9 × 10-3 g/L). ATRA was encapsulated in the core of micelles using different ratios of drug to copolymer...
December 2017: Research in Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29166739/-study-of-the-effects-and-mechanism-of-all-trans-retinoic-acid-on-leukemic-cell-line-u937-cells-with-npm1-mutation
#13
S W Qiu, Y L Wan, Y J Jia, Q Rao, M Wang, J X Wang
Objective: To investigate the effect and mechanism of all-trans retinoic acid (ATRA) on leukemic cell line U937 cells with NPM1 mutation. Methods: Human acute myeloid leukemia cell line U937 was explored, NPM1 mutated (A type) plasmids were transfected into U937 to form stable clones A1 and A2, which were identified by Western blot and Co-immunoprecipitation. The cell proliferation was measured by methylthiazolyl tetrazolium bromide (MTT) ; cell cycle and cell apoptosis were explored by flow cytometric; cell colony formation was measured by microscope count, the molecular pathways related to cell proliferation were measured by Western blot...
October 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/29164236/posttranscriptional-regulation-of-loxl1-expression-via-alternative-splicing-and-nonsense-mediated-mrna-decay-as-an-adaptive-stress-response
#14
Daniel Berner, Matthias Zenkel, Francesca Pasutto, Ursula Hoja, Panah Liravi, Gabriele C Gusek-Schneider, Friedrich E Kruse, Johannes Schödel, Andre Reis, Ursula Schlötzer-Schrehardt
Purpose: Alternative mRNA splicing coupled to nonsense-mediated decay (NMD) is a common mRNA surveillance pathway also known to dynamically modulate gene expression in response to cellular stress. Here, we investigated the involvement of this pathway in the regulation of lysyl oxidase-like 1 (LOXL1) expression in response to pseudoexfoliation (PEX)-associated pathophysiologic factors. Methods: Transcript levels of LOXL1 isoforms were determined in ocular tissues obtained from donor eyes without and with PEX syndrome...
November 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29155646/combination-treatment-of-docosahexaenoic-acid-dha-and-all-trans-retinoic-acid-atra-inhibit-il-17-and-ror%C3%AE-t-gene-expression-in-pbmcs-of-patients-with-relapsing-remitting-multiple-sclerosis
#15
Ateke Mousavi Nasl-Khameneh, Abbas Mirshafiey, Abdorreza Naser Moghadasi, Reza Chahardoli, Maryam Mahmoudi, Karim Parastouei, Mir Saeed Yekaninejad, Ali Akbar Saboor-Yaraghi
OBJECTIVES: Multiple sclerosis (MS) is a demyelinating disorder with a complex autoimmune pathophysiology. Its initiation and progression correlate with IL-17 and the related transcription factor, RORγt. All-trans retinoic acid (ATRA) is a bioactive derivative of vitamin A, and docosahexaenoic acid (DHA) is an active metabolite of omega-3 fatty acid; both have immunomodulatory effects in many immune disorders. This study investigated the effects of DHA and ATRA individually and in combination on IL-17 and RORγt gene expression in peripheral blood mononuclear cells (PBMCs) of relapsing-remitting MS (RRMS) patients who were receiving interferon beta (IFN-β)...
January 2018: Neurological Research
https://www.readbyqxmd.com/read/29141367/-differentiation-of-induced-pluripotent-stem-cells-into-neural-stem-cells-induced-by-brain-derived-neurotrophic-factor-via-wnt-%C3%AE-catenin-and-extracellular-signal-regulated-kinase-mitogen-activated-protein-kinases-signal-pathway
#16
S Q Chen, M Huang, C L Liu, Y Y Shen, Q Cai, P J Wang
Objective: To investigate the mechanism of brain-derived neurotrophic factor (BDNF) promoting induced pluripotent stem cells (iPSCs) to differentiate into neural stem cells (NSCs) via Wnt/β-catenin and extracellular signal-regulated kinase/mitogen-activated protein kinases (ERK/MAPK) signal pathways. Methods: iPSCs were cultured and identified. The iPSCs were induced to differentiate into NSCs by BDNF and retinoic acid (RA). Nestin was detected by immunofluorescence and flow cytometry after iPSCs differentiated...
November 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29105464/-study-on-cellular-immunity-mechanisms-of-suspended-moxibustion-for-treating-neutrophilic-asthma-in-rats
#17
Wei Zhang, Bin Yao, Hui-Ming Cheng, Fan-Lei Meng
OBJECTIVE: To observe the influence of suspended moxibustion on neutrophilic asthma related signal factors in asthma rats. METHODS: Thirty-two SD rats were randomly divided into normal control, model, dexamethasone(DEX) and suspended moxibustion (MOX) groups, with 8 rats in each group. The neutrophil granulocyte asthma model was made by intranasal instillation of lipopolysaccharide (LPS), intraperitoneal injection of ovalbumin(OVA) and inhalation of OVA, once a day for 14 d...
October 25, 2017: Zhen Ci Yan Jiu, Acupuncture Research
https://www.readbyqxmd.com/read/29094729/chinese-herbal-formula-fuzheng-huayu-alleviates-ccl4-induced-liver-fibrosis-in-rats-a-transcriptomic-and-proteomic-analysis
#18
Shu Dong, Fei-Fei Cai, Qi-Long Chen, Ya-Nan Song, Yang Sun, Bin Wei, Xiao-Yan Li, Yi-Yang Hu, Ping Liu, Shi-Bing Su
Liver fibrosis is a consequence of chronic liver disease that can progress to liver cirrhosis or even hepatocarcinoma. Fuzheng Huayu (FZHY), a Chinese herbal formula, has been shown to exert anti-fibrotic effects. To better understand the molecular mechanisms underlying the anti-fibrotic effects of FZHY, we analyzed transcriptomic and proteomic combination profiles in CCl4-induced liver fibrosis in rats, which were treated with extracted FZHY powder (0.35 g/kg/d, ig) for 3 weeks. We showed that FZHY administration significantly improved liver function, alleviated hepatic inflammatory and fibrotic changes, and decreased the hydroxyproline content in the livers of CCl4-treated rats...
November 2, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29077166/correlation-between-rar-%C3%AE-expression-in-lung-squamous-cell-carcinoma-tissues-and-prognosis
#19
P-Z Hou, G Jian, Z-Q Ma, Y Xu
OBJECTIVE: To explore the retinoic acid receptor-β (RAR-β) expression in lung squamous cell carcinoma (LSCC) tissues and its prognosis. PATIENTS AND METHODS: SP assay was used to detect the RAR-β expression in 100 cases of surgically resected LSCC tissues and 20 cases of peritumoral normal lung tissues, and prognosis follow-up was conducted. RESULTS: The overall positive expression rate of RAR-β was 54.00%, which was not correlated with age, gender, phase and pathological type (p>0...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29047260/gsk-j4-mediated-transcriptomic-alterations-in-differentiating-embryoid-bodies
#20
Chanchal Mandal, Sun Hwa Kim, Sung Chul Kang, Jin Choul Chai, Young Seek Lee, Kyoung Hwa Jung, Young Gyu Chai
Histone-modifying enzymes are key players in the field of cellular differentiation. Here, we used GSK-J4 to profile important target genes that are responsible for neural differentiation. Embryoid bodies were treated with retinoic acid (10 μM) to induce neural differentiation in the presence or absence of GSK-J4. To profile GSKJ4-target genes, we performed RNA sequencing for both normal and demethylase-inhibited cells. A total of 47 and 58 genes were up- and down-regulated, respectively, after GSK-J4 exposure at a log2-fold-change cut-off value of 1...
October 2017: Molecules and Cells
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