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https://www.readbyqxmd.com/read/28320131/epigenetic-and-gene-expression-alterations-of-foxp3-in-the-t-cells-of-eae-mouse-model-of-multiple-sclerosis
#1
Ali Noori-Zadeh, Seyed Alireza Mesbah-Namin, Ali Akbar Saboor-Yaraghi
Multiple sclerosis (MS) is a chronic autoimmune disease with demyelination and neurodegeneration of the central nervous system. It has been shown that the regulatory T (Treg) cells are responsible for maintaining tolerance to self-antigens and can suppress the autoimmune process in several animal models such as experimental autoimmune encephalomyelitis (EAE), a mouse model of MS. Recent basic studies have demonstrated that forkhead box P (FOXP3) and BTB domain and CNC homolog 2 (BACH2) are the master transcription factors of these cells playing a pivotal role in the polarization of naïve T cells into Treg cells...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28318118/distinct-expression-of-nk2-homeobox-1-nkx2-1-and-goblet-cell-hyperplasia-in-nasal-polyps-with-different-endotypes
#2
Jintao Du, Luo Ba, Bo Li, Feng Liu, Xianting Hu, Jie Zhang, Yafeng Liu, Junming Xian, Sixi Liu, Huabin Li
BACKGROUND: Decreased expression of airway epithelial-specific transcription factor NK2 homeobox 1 (NKX2-1) was associated with allergic inflammation in asthma patients. However, the expression and role of NKX2-1 in nasal polyps (NPs) with different endotypes were undefined yet. METHODS: We examined the expression of key cytokines (interleukin [IL]-4 IL-5, IL-13, and IL-17A, etc.) and NKX2-1 in NPs with different endotypes and control tissues by immunohistochemistry staining, qualitative polymerase chain reaction (qPCR), enzyme-linked immunosorbent assay (ELISA), and Western blot analysis...
March 20, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28317366/-research-progress-on-forkhead-box-protein-o1-and-bone-metabolism
#3
Shu Linjing, Wu Yingying, Tan Zhen, Gong Ping
Recent studies found that forkhead box protein O1 (FoxO1) does not only demonstrate important biological functions in cell proliferation, gluconeogenesis, energy metabolism, and oxidative stress, but it also plays a vital role in the remodeling process of bones. FoxO1 can regulate bone mass by affecting osteoblasts, osteoclasts, and precursor cells. In this article, we review the role of FoxO1 in bone metabolism and elucidate its underlying mechanism.
August 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28315294/neuronal-cell-sheet-of-cortical-motor-neuron-phenotype-derived-from-human-ips-cells
#4
Noboru Suzuki, Nagisa Arimitsu, Jun Shimizu, Kenji Takai, Chieko Hirotsu, Erika Takada, Yuji Ueda, Sueshige Wakisaka, Naruyoshi Fujiwara, Tomoko Suzuki
<p>Transplantation of stem cells which differentiate into more mature neural cells brings about functional improvement in pre-clinical studies of stroke. Previous transplant approaches in diseased brain have utilized injection of the cells in a cell suspension. In addition, neural stem cells were preferentially used as graft. However, these cells had no specific relationship to the damaged tissue of stroke patients and brain injury. The injection of cells in a suspension destroyed the cell-cell interactions that are suggested to be important for promoting functional integrity as cortical motor neurons...
March 17, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28300338/chinese-1-strain-of-toxoplasma-gondii-excreted-secreted-antigens-negatively-modulate-foxp3-via-inhibition-of-the-tgf%C3%A3-rii-smad2-smad3-smad4-pathway
#5
Jinling Chen, Caiqun Huang, Dandan Zhu, Pei Shen, Yinong Duan, Jianxin Wang, Chunzhao Yang, Liting Wu
Toxoplasma gondii is an opportunistic intracellular parasite and is considered an important aetiological factor in the process of abortion, especially as occurs in early gestation. Chinese 1 strain of T. gondii is a dominant genotype prevalent in China. Although it is known that early foetal resorption triggered by RH strain of T. gondii is attributable to immune mechanisms rather than its direct effect in uterus, the underlying mechanism of the abortion caused by Chinese 1 strain remains unclear. This study was designed to investigate the effect of excreted-secreted antigens (ESA) of Chinese 1 strain of T...
March 16, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28297140/foxn1-duplication-and-congenital-hypertrichosis
#6
Eimear Gilhooley, Siobhan Gormally, Alan Irvine, Sally Ann Lynch, Sinead Collins
We report a case of congenital hypertrichosis and FOXN1 duplication. FOXN1 is a member of the forkhead box gene family, located on chromosome 17. Its function includes differentiation of epithelial cells and regulation of keratinocytes, especially hair keratins. Loss of function of these transcription factors leads to a disruption in hair growth. As far as we are aware, this is the first case of FOXN1 duplication associated with congenital hypertrichosis to be reported in the literature.
March 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28289675/humoral-immunodeficiency-with-hypotonia-feeding-difficulties-enteropathy-and-mild-eczema-caused-by-a-classical-foxp3-mutation
#7
Paul Tuijnenburg, Eloy Cuadrado, Annet M Bosch, Angelika Kindermann, Machiel H Jansen, Marielle Alders, Ester M M van Leeuwen, Taco W Kuijpers
We describe here the case of a boy who presented with pulmonary infections, feeding difficulties due to velopharyngeal insufficiency and gastroesophageal reflux, myopathy, and hypotonia soon after birth. Later, he was also found to have an elevated immunoglobulin (Ig) E and mild eczema and was diagnosed with inflammatory bowel disease. Further immunological screening at the age of 7 years showed low B and NK cell numbers but normal CD4(+) and CD8(+) T cells and notably, normal numbers of CD4(+) regulatory T (Treg) cells...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28289076/fumarate-mediates-a-chronic-proliferative-signal-in-fumarate-hydratase-inactivated-cancer-cells-by-increasing-transcription-and-translation-of-ferritin-genes
#8
Michael John Kerins, Ajay Vashisht, Benjamin Xi-Tong Liang, Spencer Jordan Duckworth, Brandon John Praslicka, James Akira Wohlschlegel, Aikseng Ooi
Germline mutations of the gene encoding the tricarboxylic acid cycle (TCA cycle) enzyme, fumarate hydratase (FH), cause a hereditary cancer syndrome known as hereditary leiomyomatosis and renal cell cancer (HLRCC). HLRCC associated tumors harbor biallelic FH inactivation that results in the accumulation of the TCA cycle metabolite, fumarate. Although it is known that the fumarate accumulation can alter cellular signaling, if and how fumarate confers a growth advantage remains unclear. Here we show that fumarate accumulation confers a chronic proliferative signal by disrupting cellular iron signaling...
March 13, 2017: Molecular and Cellular Biology
https://www.readbyqxmd.com/read/28288141/foxc1-an-emerging-marker-and-therapeutic-target-for-cancer
#9
REVIEW
B Han, N Bhowmick, Y Qu, S Chung, A E Giuliano, X Cui
The Forkhead box C1 (FOXC1) transcription factor is involved in normal embryonic development and regulates the development and function of many organs. Most recently, a large body of literature has shown that FOXC1 plays a critical role in tumor development and metastasis. Clinical studies have demonstrated that elevated FOXC1 expression is associated with poor prognosis in many cancer subtypes, such as basal-like breast cancer (BLBC). FOXC1 is highly and specifically expressed in BLBC as opposed to other breast cancer subtypes...
March 13, 2017: Oncogene
https://www.readbyqxmd.com/read/28287613/knockdown-of-long-non-coding-rna-xist-increases-blood-tumor-barrier-permeability-and-inhibits-glioma-angiogenesis-by-targeting-mir-137
#10
H Yu, Y Xue, P Wang, X Liu, J Ma, J Zheng, Z Li, Z Li, H Cai, Y Liu
Antiangiogenic therapy plays a significant role in combined glioma treatment. However, poor permeability of the blood-tumor barrier (BTB) limits the transport of chemotherapeutic agents, including antiangiogenic drugs, into tumor tissues. Long non-coding RNAs (lncRNAs) have been implicated in various diseases, especially malignant tumors. The present study found that lncRNA X-inactive-specific transcript (XIST) was upregulated in endothelial cells that were obtained in a BTB model in vitro. XIST knockdown increased BTB permeability and inhibited glioma angiogenesis...
March 13, 2017: Oncogenesis
https://www.readbyqxmd.com/read/28286268/resveratrol-rescues-cadmium-induced-mitochondrial-injury-by-enhancing-transcriptional-regulation-of-pgc-1%C3%AE-and-sod2-via-the-sirt3-foxo3a-pathway-in-tcmk-1-cells
#11
Beibei Fu, Jiamin Zhao, Wei Peng, Haibo Wu, Yong Zhang
Resveratrol has been reported to ameliorate Cd-induced nephrotoxicity. However, the beneficial effects of resveratrol on Cd-induced nephrotoxicity and the underlying mechanisms of this protection remain unclear. Here, we showed that mouse renal tubular epithelial (TCMK-1) cells exposed to Cd experienced significantly increased mitochondrial reactive oxygen species (mROS) production, as well as decreased mitochondrial biogenesis and function. Cd exposure dramatically decreased Sirt3 protein expression and activity and promoted the acetylation of forkhead box O3 (FoxO3a)...
March 9, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28283017/forkhead-box-transcription-factor-1-affects-the-apoptosis-of-natural-regulatory-t-cells-by-controlling-aven-expression
#12
Zhitao Cai, Hong Liu, Xiongfei Wu
BACKGROUND: Regulatory T (Treg) cells play important roles in autoimmune diseases, cancer, and organ transplantation. Forkhead box protein o1 (Foxo1) and IL-7Rα(CD127) are closely related to the homeostasis of Treg cells. However, the mechanism underlying Treg proliferation and activation remains unclear. Here, we evaluated how the over-expression of Foxo1 affects Treg cell proliferation via intracellular signaling. nTreg cells were transfected separately with Foxo1 and Aven small-interfering RNA (siRNA) or over-expression plasmid...
March 10, 2017: BMC Immunology
https://www.readbyqxmd.com/read/28282036/heterarchy-of-transcription-factors-driving-basal-and-luminal-cell-phenotypes-in-human-urothelium
#13
Carl Fishwick, Janet Higgins, Lawrence Percival-Alwyn, Arianna Hustler, Joanna Pearson, Sarah Bastkowski, Simon Moxon, David Swarbreck, Chris D Greenman, Jennifer Southgate
Cell differentiation is affected by complex networks of transcription factors that co-ordinate re-organisation of the chromatin landscape. The hierarchies of these relationships can be difficult to dissect. During in vitro differentiation of normal human uro-epithelial cells, formaldehyde-assisted isolation of regulatory elements (FAIRE-seq) and RNA-seq was used to identify alterations in chromatin accessibility and gene expression changes following activation of the nuclear receptor peroxisome proliferator-activated receptor gamma (PPARγ) as a differentiation-initiating event...
March 10, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28277541/the-foxm1-abcc5-axis-contributes-to-paclitaxel-resistance-in-nasopharyngeal-carcinoma-cells
#14
Youxiang Hou, Qianling Zhu, Zheng Li, Yongbo Peng, Xiaohui Yu, Bowen Yuan, Yijun Liu, Youhong Liu, Linglong Yin, Yuchong Peng, Zhenghua Jiang, Jinping Li, Bowen Xie, Yumei Duan, Guolin Tan, Kurban Gulina, Zhicheng Gong, Lunquan Sun, Xuegong Fan, Xiong Li
Paclitaxel is clinically used as a first-line chemotherapeutic regimen for several cancer types, including head and neck cancers. However, acquired drug resistance results in the failure of therapy, metastasis and relapse. The drug efflux mediated by ATP-binding cassette (ABC) transporters and the survival signals activated by forkhead box (FOX) molecules are critical in the development of paclitaxel drug resistance. Whether FOX molecules promote paclitaxel resistance through drug efflux remains unknown. In this study, we developed several types of paclitaxel-resistant (TR) nasopharyngeal carcinoma (NPC) cells...
March 9, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28277274/therapeutic-reversal-of-food-allergen-sensitivity-by-mature-retinoic-acid-differentiated-dendritic-cell-induction-of-lag3-cd49b-foxp3-regulatory-t%C3%A2-cells
#15
Wojciech Dawicki, Chunyan Li, Jennifer Town, Xiaobei Zhang, John R Gordon
BACKGROUND: Anaphylaxis is a life-threatening condition for which we have limited therapeutic options. Although specific immunotherapy for food allergies is becoming more effective, it is still laborious and carries substantial risk of adverse events. On the other hand, regulatory dendritic cell (DC) therapy is effective in mouse models of allergic disease and has been shown to work with TH2 cells from atopic asthmatic patients. OBJECTIVE: We assessed whether DC immunotherapy could reverse food allergen sensitivity in mouse models to provide proof of concept relating to their use in the clinic...
October 20, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28276427/trib2-confers-resistance-to-anti-cancer-therapy-by-activating-the-serine-threonine-protein-kinase-akt
#16
Richard Hill, Patricia A Madureira, Bibiana Ferreira, Inês Baptista, Susana Machado, Laura Colaço, Marta Dos Santos, Ningshu Liu, Ana Dopazo, Selma Ugurel, Angyal Adrienn, Endre Kiss-Toth, Murat Isbilen, Ali O Gure, Wolfgang Link
Intrinsic and acquired resistance to chemotherapy is the fundamental reason for treatment failure for many cancer patients. The identification of molecular mechanisms involved in drug resistance or sensitization is imperative. Here we report that tribbles homologue 2 (TRIB2) ablates forkhead box O activation and disrupts the p53/MDM2 regulatory axis, conferring resistance to various chemotherapeutics. TRIB2 suppression is exerted via direct interaction with AKT a key signalling protein in cell proliferation, survival and metabolism pathways...
March 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28276310/basic-transcription-factor-3-is-required-for-proliferation-and-epithelial-mesenchymal-transition-via-regulation-of-foxm1-and-jak2-stat3-signaling-in-gastric-cancer
#17
De-Zhong Zhang, Bing-He Chen, Lan-Fang Zhang, Ming-Kun Cheng, Xiang-Jie Fang, Xin-Jun Wu
Gastric cancer (GC) is the most common epithelial malignancy worldwide. Basic transcription factor 3 (BTF3) plays a crucial role in the regulation of various biological processes. We designed experiments to investigate the molecular mechanism underlying the role of BTF3 in GC cell proliferation and metastasis. We confirmed that BTF3 expression was decreased in GC tissues and several GC cell lines. Lentivirus-mediated downregualtion of BTF3 reduced cell proliferation, induced S and G2/M cell cycle arrest, and increased apoptosis...
March 8, 2017: Oncology Research
https://www.readbyqxmd.com/read/28270510/down-regulation-of-forkhead-box-protein-a1-foxa1-leads-to-cancer-stem-cell-like-properties-in-tamoxifen-resistant-breast-cancer-cells-through-induction-of-interleukin-6
#18
Noritaka Yamaguchi, Yuji Nakayama, Naoto Yamaguchi
The selective estrogen receptor (ER) modulator tamoxifen inhibits ER signaling in breast cancer cells, and it is used for the treatment of ER-positive breast cancer. However, this type of cancer often acquires resistance to tamoxifen, and a better understanding of the molecular mechanisms underlying tamoxifen-resistance is required. In this study, we established tamoxifen-resistant (TAM-R) breast cancer cells by long-term tamoxifen treatment of ER-positive breast cancer MCF7 cells. In TAM-R cells, expression of not only ERα, a major form of ER in breast cancer, but also its transcriptional partner forkhead box protein A1 (FOXA1) was found to be reduced...
March 7, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28270438/menin-and-prmt5-suppress-glp1-receptor-transcript-and-pka-mediated-phosphorylation-of-foxo1-and-creb
#19
Abdul Bari Muhammad, Bowen Xing, Chengyang Liu, Ali Naji, Xiaosong Ma, Rebecca A Simmons, Xianxin Hua
Menin is a scaffold protein that interacts with several epigenetic mediators to regulate gene transcription, and suppresses pancreatic beta cell proliferation. Tamoxifen inducible deletion of multiple endocrine neoplasia type 1 (MEN1) gene, which encodes the protein menin, increases beta cell mass in multiple murine models of diabetes and ameliorates diabetes. Glucagon-like-peptide-1 (GLP1) is another key physiological modulator of beta cell mass and glucose homeostasis. However, it is not clearly understood whether menin crosstalks with GLP1 signaling...
March 7, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28267429/knockdown-of-foxk1-suppresses-proliferation-migration-and-invasion-in-prostate-cancer-cells
#20
Fang Chen, Wei Xiong, Ke Dou, Qing Ran
Forkhead box K1 (FOXK1) is a member of the FOX transcription factor family and plays an important role in the development of several tumors. However, the role of FOXK1 in the progression of prostate cancer remains unknown. Thus, the objective of this study was to detect the expression of FOXK1 in prostate cancer and examine its role in prostate cancer cells. We found that the expression of FOXK1 at both mRNA and protein levels was significantly up-regulated in human prostate cancer cell lines. In addition, the downregulation of FOXK1 obviously inhibited the cell proliferation of prostate cancer cells <i>in vitro</i> and attenuated tumor growth in a xenograft model in vivo...
March 2, 2017: Oncology Research
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