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Krishna P Sunkara, Gaurav Gupta, Philip M Hansbro, Kamal Dua, Mary Bebawy
The Special AT-rich Sequence Binding Protein 1 (SATB1) is a chromatin organiser and transcription factor which regulates numerous cellular processes such as differentiation, proliferation and apoptosis through effects on gene expression. SATB1 undergoes various post-translational modifications, which determine its interaction with co-activators and co-repressors to induce regulation of gene transcription. SATB1 is an identified oncogene, its increased expression is associated with poor prognosis in many cancers...
May 14, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Simon Fredholm, Andreas Willerslev-Olsen, Özcan Met, Linda Kubat, Maria Gluud, Sarah L Mathiasen, Christina Friese, Edda Blümel, David L Petersen, Tengpeng Hu, Claudia Nastasi, Lise M Lindahl, Terkild B Buus, Thorbjørn Krejsgaard, Mariusz A Wasik, Katharina L Kopp, Sergei B Koralov, Jenny L Persson, Charlotte M Bonefeld, Carsten Geisler, Anders Woetmann, Lars Iversen, Jurgen C Becker, Niels Odum
Deficient expression of Suppressor Special AT-rich Binding-1 (SATB1) hampers thymocyte development and results in inept T cell lineages. Recent data implicate dysregulated SATB1 expression in the pathogenesis of mycosis fungoides (MF), the most frequent variant of cutaneous T cell lymphoma (CTCL). Here we report on a disease-stage-associated decrease of SATB1 expression and an inverse expression of STAT5 and SATB1 in situ. Importantly, STAT5 inhibited SATB1 expression through induction of miR-155. Decreased SATB1 expression triggered enhanced expression of IL-5 and IL-9 (but not IL-6 and IL-32) whereas increased SATB1 expression had the opposite effect indicating that the mir-155 target SATB1 is a repressor of IL-5 and IL-9 in malignant T cells...
May 8, 2018: Journal of Investigative Dermatology
Yanli Feng, Xin Wang, Quanyi Wang
The expression of special AT-rich sequence binding protein 1 (SATB1) and E-cadherin (E-cad) in tissues of patients with endometrial carcinoma and the relationships with clinicopathological features were investigated. One hundred and four cases of carcinoma tissues and 104 cases of para-carcinoma tissues of patients pathologically diagnosed as endometrial carcinoma in Affiliated Hospital of Jining Medical University (Jining, China) from August 2015 to August 2016 were selected. The expressions of SATB1 and E-cad in tissues was detected via streptavidin peroxidase biotin (SP) immunohistochemical method, and the relationship with clinicopathological features of patients was analyzed...
May 2018: Experimental and Therapeutic Medicine
Sandra M McLachlan, Basil Rapoport
No abstract text is available yet for this article.
April 5, 2018: Thyroid: Official Journal of the American Thyroid Association
Qiang Wang, Chun-Sheng Yang, Zu-Xin Ma, Jia-Cun Chen, Jun-Nian Zheng, Xiao-Qing Sun, Jun-Qi Wang
Prostate cancer is a common visceral cancer of men worldwide. It is important to develop a more effective treatment for prostate cancer to overcome the treatment resistance that occurs with recurrence. RNA interference has been demonstrated to be a powerful tool for gene knockdown and has potential as a cancer treatment. It has been previously demonstrated that staining of special AT-rich sequence-binding protein 1 (SATB1) was stronger in prostatic carcinoma with metastasis compared with prostatic carcinoma without metastasis...
March 2018: Experimental and Therapeutic Medicine
Haiying Rao, Yuxiang Bai, Qingshu Li, Baimei Zhuang, Yu Yuan, Yamin Liu, Wei Peng, Philip N Baker, Chao Tong, Xin Luo, Hongbo Qi
Preeclampsia (PE) is characterized by abnormal placentation in the early stages of pregnancy. Adequate migration and invasion of trophoblasts into the uterine wall and spiral arteries to form a functional maternal-fetal interface are pivotal for normal placentation, but the exact mechanism remains unclear. Growing evidence has revealed that special AT-rich sequence-binding protein 1 (SATB1) is a tumor promoter that participates in cancer cell migration and invasion. However, the expression and function of SATB1 in trophoblasts is unknown...
March 13, 2018: Biology of Reproduction
Jingru Sun, Shengguo Yi, Lei Qiu, Wenjing Fu, Anqi Wang, Fengjie Liu, Lin Wang, Tingting Wang, Hao Chen, Lei Wang, Marshall E Kadin, Ping Tu, Yang Wang
Cutaneous CD30+ lymphoproliferative disorders (LPDs), including lymphomatoid papulosis (LyP) and primary cutaneous anaplastic large-cell lymphoma, comprise the second most common group of cutaneous T-cell lymphomas. Previously, we reported that special SATB1, a thymocyte-specific chromatin organizer, was overexpressed and promoted malignant T-cell proliferation in a portion of CD30+ LPDs. Here, we investigated the expression pattern of SATB1 in CD30+ LPDs with a large cohort of patient samples, and examined the potential of SATB1 as a molecular marker to classify CD30+ LPDs with differential clinicopathological behaviors...
March 3, 2018: Journal of Investigative Dermatology
Ivana Kristina Delic Jukic, Sandra Kostic, Natalija Filipovic, Larissa Gudelj Ensor, Marijeta Ivandic, Josefina Josipa Dukic, Marija Vitlov Uljevic, Lejla Ferhatovic Hamzic, Livia Puljak, Katarina Vukojevic
Background: Diabetic nephropathy (DN) is a common complication of diabetes mellitus (DM). We studied the expression of special AT-rich sequence binding protein 1 (SATB1) and phosphatase and tensin homologue (PTEN) in the kidneys of diabetic rats during ageing. Methods: Male Sprague Dawley rats were injected with 55 mg/kg streptozotocin (STZ) (DM group) or with citrate buffer (control group). Kidneys were collected after 2 weeks, 6 months and 12 months, and were analysed in three different kidney structures: glomeruli, proximal (PCT) and distal convoluted tubules (DCT)...
March 1, 2018: Nephrology, Dialysis, Transplantation
Xin Pan, Da Li, Jianing Huo, Fanfei Kong, Hui Yang, Xiaoxin Ma
Long noncoding RNAs (lncRNAs) have been implicated in tumorigenesis and cancer progression and are tightly associated with the phenotypes of numerous cancers. However, the functional roles underlying these effects are unknown. The expression levels of LINC01016, miR-302a-3p, miR-3130-3p, NFYA, and SATB1 were evaluated by quantitative real-time polymerase chain reaction (qRT-PCR) in 33 endometrial cancer tissues and 20 normal tissues. Bioinformatics analyses, luciferase reporter analyses, chromatin immunoprecipitation (ChIP) assays, and qRT-PCR assays were performed to verify potential binding sites...
February 21, 2018: Cell Death & Disease
Jun Li, Guangqun Xing, Lili Zhang, Jinchun Shang, Yuan Li, Chunmei Li, Fen Tian, Xiangdong Yang
Chronic kidney disease-mineral and bone disorder (CKD-MBD) is a complex disease which is associated with alterations of bone and mineral metabolism. miR-223 is implicated in both vascular calcification and osteoporosis. In the present study, we investigated the influence of Stab1 gene on miRNA-223 expression in osteoclastogenesis. Differentiation of monocyte/macrophage precursors was assessed by using RAW264.7 cells and peripheral blood mononuclear cells (PBMC). TRAP activity and bone resorption were used to measure osteoclast activity...
November 1, 2017: Die Pharmazie
Yasushi Akiba, Taku Kuwabara, Takanori Mukozu, Tetuo Mikami, Motonari Kondo
The genome organizer special AT-rich sequence binding protein 1 (SATB1) regulates specific functions through chromatin remodeling in T helper cells. It was recently reported by our team that T cells from SATB1 conditional knockout (SATB1cKO) mice, in which the Satb1 gene is deleted from hematopoietic cells, impair phosphorylation of signaling molecules in response to T cell receptor (TCR) crosslinking. However, in vivo T cell responses upon antigen presentation in the absence of SATB1 remain unclear. In the current study, it was shown that SATB1 modulates T cell antigen responses during the induction and effector phases...
April 2018: Microbiology and Immunology
Meng Ding, Jun Pan, Zhicheng Guo, Quhe Liu, Chunhua Yang, Lijun Mao
The special AT-rich sequence binding-protein1 (SATB1) attracts excessive attention due to its high expression in a variety of malignancies. SATB1 reprograms chromatin and transcription profiles to promote tumor cell growth and invasion and inhibit apoptosis, leading to tumor progression and metastasis. Consistently, silencing SATB1 with small interfering RNA inhibits the growth and invasion of some kinds of tumors. In this review, we highlight recent progress in our understanding of the role of SATB1 as global regulator of gene expression during cancer development, and evaluate the potential of SATB1 as a molecular therapeutic target for cancers with aberrant SATB1 expression...
January 2, 2018: Cancer Investigation
Natalia Glatzel-Plucinska, Aleksandra Piotrowska, Jedrzej Grzegrzolka, Mateusz Olbromski, Adam Rzechonek, Piotr Dziegiel, Marzenna Podhorska-Okolow
BACKGROUND: Non-small cell lung carcinomas (NSCLCs), mainly adenocarcinoma (AC) and squamous cell carcinoma (LSCC), account for about 80% of all lung cancer cases. One of the proteins involved in NSCLC progression may be special AT-rich binding protein 1 (SATB1), a potent transcriptional regulator, able to control the expression of whole sets of genes simultaneously. SATB1 has been found to be associated with aggressive phenotype and poor prognosis in numerous malignancies, including breast, colon, ovary and prostate cancer...
February 2018: Anticancer Research
Sara B Estruch, Sarah A Graham, Martí Quevedo, Arianna Vino, Dick H W Dekkers, Pelagia Deriziotis, Elliot Sollis, Jeroen Demmers, Raymond A Poot, Simon E Fisher
FOXP transcription factors play important roles in neurodevelopment, but little is known about how their transcriptional activity is regulated. FOXP proteins cooperatively regulate gene expression by forming homo- and hetero-dimers with each other. Physical associations with other transcription factors might also modulate the functions of FOXP proteins. However, few FOXP-interacting transcription factors have been identified so far. Therefore, we sought to discover additional transcription factors that interact with the brain-expressed FOXP proteins, FOXP1, FOXP2 and FOXP4, through affinity-purifications of protein complexes followed by mass spectrometry...
April 1, 2018: Human Molecular Genetics
Songhui Zhai, Jianxin Xue, Zheng Wang, Lijuan Hu
Previous studies of the roles of special AT-rich sequence binding protein-1 (SATB1) in the development and progression of cancer have suggested that SATB1 promotes cancer cell metastasis. The aim of the present study is to evaluate the role of SATB1 in the progression and prognosis of esophageal squamous cell carcinoma (ESCC). ESCC tissues were collected from 102 patients and SATB1 mRNA expression was measured by reverse transcription-quantitative polymerase chain reaction. The association between expression of SATB1 mRNA with clinicopathological features and prognosis was assessed, and the prognosis of ESCC was evaluated using Kaplan-Meier survival curves...
December 2017: Oncology Letters
Yang Li, Jin Wang, Minghang Yu, Yang Wang, Huilai Zhang, Jie Yin, Zexing Li, Ting Li, Han Yan, Fajin Li, Xi Wang
SNF5, is a core member of the SWI/SNF chromatin remodeling complex. It's deficiency leads to multiple types of aggressive cancer. Sézary syndrome, a leukemic variant of cutaneous T-cell lymphoma, is characterized by its resistance to apoptosis. Although the cause of apoptosis resistance is still poorly understood, recent evidence has revealed the importance of SATB1 in the apoptosis resistance of Sézary syndrome. In this study, we show that SNF5 is an upstream regulator of SATB1 in several conditions and that both are deficient in Sézary cells...
January 16, 2018: Leukemia & Lymphoma
Anja Frömberg, Kurt Engeland, Achim Aigner
The Special AT-rich Sequence Binding Protein 1 (SATB1) exerts multiple functions, by influencing the structural organization of chromatin and interacting with several co-activators and co-repressors of transcription. Thus, SATB1 affects the expression of various genes by multiple mechanisms of action, involving three-dimensional chromatin architecture. More recently, SATB1 has been connected with solid tumors, tumorigenesis, tumor progression and tumor immunity. On the diagnostic side, SATB1 levels were found to correlate with clinicopathological features like increased TNM stage, reduced tumor differentiation, and a shorter overall survival...
March 28, 2018: Cancer Letters
Tomohiko Ishibashi, Takafumi Yokota, Yusuke Satoh, Michiko Ichii, Takao Sudo, Yukiko Doi, Tomoaki Ueda, Yasuhiro Nagate, Yuri Hamanaka, Akira Tanimura, Sachiko Ezoe, Hirohiko Shibayama, Kenji Oritani, Yuzuru Kanakura
Information of myeloid lineage-related antigen on hematopoietic stem/progenitor cells (HSPCs) is important to clarify the mechanisms regulating hematopoiesis, as well as for the diagnosis and treatment of myeloid malignancies. We previously reported that special AT-rich sequence binding protein 1 (SATB1), a global chromatin organizer, promotes lymphoid differentiation from HSPCs. To search a novel cell surface molecule discriminating early myeloid and lymphoid differentiation, we performed microarray analyses comparing SATB1-overexpressed HSPCs with mock-transduced HSPCs...
January 15, 2018: Biochemical and Biophysical Research Communications
Qiang Wang, Shi-Cheng Hu, Chun-Sheng Yang, Jia-Cun Chen, Jun-Nian Zheng, Xiao-Qing Sun, Jun-Qi Wang
Despite previous advances, the treatment options for prostate cancer remain limited. For the purposes of gene knockdown, the utility of RNA interference has been demonstrated and is considered to have therapeutic potential. In the present study, a short hairpin RNA (shRNA) was used to assess the effect of special AT-rich sequence binding protein (SATB1) downregulation on the growth and metastatic potential of prostate cancer in xenograft nude mice. A plasmid carrying shRNA targeting SATB1, pSilencer-SATB1-shRNA, was successfully engineered...
December 2017: Oncology Letters
Yuriko Tanaka, Takehiko Sotome, Akiko Inoue, Takanori Mukozu, Taku Kuwabara, Tetuo Mikami, Terumi Kowhi-Shigematsu, Motonari Kondo
Sjögren's syndrome (SS) is an autoimmune disease in which exocrine tissues are affected by cellular and humoral immunity. As a result, the salivary and lacrimal glands of patients with SS are damaged, leading to xerostomia (dry mouth) and keratoconjunctivitis sicca (dry eyes). Because experimental approaches to investigate SS pathogenesis in human patients are limited, development of a mouse model is indispensable for understanding the disease. In this study, we show that special AT-rich sequence binding protein-1 conditional knockout (SATB1cKO) mice, in which the SATB1 gene is specifically deleted from hematopoietic cells, develop SS by 4 wk of age, soon after weaning...
December 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
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