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https://www.readbyqxmd.com/read/29331452/design-synthesis-and-evaluation-of-%C3%AE-turn-mimetics-as-lsd1-selective-inhibitors
#1
Yosuke Ota, Shin Miyamura, Misaho Araki, Yukihiro Itoh, Shusuke Yasuda, Mitsuharu Masuda, Tomoyuki Taniguchi, Yoshihiro Sowa, Toshiyuki Sakai, Kenichiro Itami, Junichiro Yamaguchi, Takayoshi Suzuki
Lysine-specific demethylase 1 (LSD1) is an attractive molecular target for cancer therapy. We have previously reported potent LSD1-selective inhibitors (i.e., NCD18, NCD38, and their analogs) consisting of trans-2-phenylcyclopropylamine (PCPA) or trans-2-arylcyclopropylamine (ACPA) and a lysine moiety that could form a γ-turn structure in the active site of LSD1. Herein we report the design, synthesis and evaluation of γ-turn mimetic compounds for further improvement of LSD1 inhibitory activity and anticancer activity...
January 2, 2018: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/29325932/riboflavin-attenuates-myocardial-injury-via-lsd1-mediated-crosstalk-between-phospholipid-metabolism-and-histone-methylation-in-mice-with-experimental-myocardial-infarction
#2
Peng Wang, Fan Fan, Xiao Li, Xiaolei Sun, Leilei Ma, Jian Wu, Cheng Shen, Hong Zhu, Zhen Dong, Cong Wang, Shuqi Zhang, Xiaona Zhao, Xin Ma, Yunzeng Zou, Kai Hu, Aijun Sun, Junbo Ge
The underlying mechanisms responsible for the cardioprotective effects of riboflavin remain elusive. Current study tested the hypothesis that riboflavin protects injured myocardium via epigenetic modification of LSD1. Here we showed that myocardial injury was attenuated and cardiac function was improved in riboflavin-treated mice with experimental myocardial infarction (MI), while these protective effects of riboflavin could be partly blocked by cotreatment with LSD1 inhibitor. Riboflavin also reduced apoptosis in hypoxic (1% oxygen) H9C2 cell lines...
January 8, 2018: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29311580/lsd1-activation-promotes-inducible-emt-programs-and-modulates-the-tumour-microenvironment-in-breast-cancer
#3
T Boulding, R D McCuaig, A Tan, K Hardy, F Wu, J Dunn, M Kalimutho, C R Sutton, J K Forwood, A G Bert, G J Goodall, L Malik, D Yip, J E Dahlstrom, A Zafar, K K Khanna, S Rao
Complex regulatory networks control epithelial-to-mesenchymal transition (EMT) but the underlying epigenetic control is poorly understood. Lysine-specific demethylase 1 (LSD1) is a key histone demethylase that alters the epigenetic landscape. Here we explored the role of LSD1 in global epigenetic regulation of EMT, cancer stem cells (CSCs), the tumour microenvironment, and therapeutic resistance in breast cancer. LSD1 induced pan-genomic gene expression in networks implicated in EMT and selectively elicits gene expression programs in CSCs whilst repressing non-CSC programs...
January 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29302039/targeting-the-corest-complex-with-dual-histone-deacetylase-and-demethylase-inhibitors
#4
Jay H Kalin, Muzhou Wu, Andrea V Gomez, Yun Song, Jayanta Das, Dawn Hayward, Nkosi Adejola, Mingxuan Wu, Izabela Panova, Hye Jin Chung, Edward Kim, Holly J Roberts, Justin M Roberts, Polina Prusevich, Jeliazko R Jeliazkov, Shourya S Roy Burman, Louise Fairall, Charles Milano, Abdulkerim Eroglu, Charlotte M Proby, Albena T Dinkova-Kostova, Wayne W Hancock, Jeffrey J Gray, James E Bradner, Sergio Valente, Antonello Mai, Nicole M Anders, Michelle A Rudek, Yong Hu, Byungwoo Ryu, John W R Schwabe, Andrea Mattevi, Rhoda M Alani, Philip A Cole
Here we report corin, a synthetic hybrid agent derived from the class I HDAC inhibitor (entinostat) and an LSD1 inhibitor (tranylcypromine analog). Enzymologic analysis reveals that corin potently targets the CoREST complex and shows more sustained inhibition of CoREST complex HDAC activity compared with entinostat. Cell-based experiments demonstrate that corin exhibits a superior anti-proliferative profile against several melanoma lines and cutaneous squamous cell carcinoma lines compared to its parent monofunctional inhibitors but is less toxic to melanocytes and keratinocytes...
January 4, 2018: Nature Communications
https://www.readbyqxmd.com/read/29286182/knockdown-of-pseudogene-derived-from-lncrna-duxap10-inhibits-cell-proliferation-migration-invasion-and-promotes-apoptosis-in-pancreatic-cancer
#5
Yifan Lian, Chuanxing Xiao, Changsheng Yan, Dajun Chen, Qingwen Huang, Yanyun Fan, Zhaohua Li, Hongzhi Xu
Current evidence suggests that pseudogene derived lncRNAs may be important players in human cancer progression. Our previous study showed that DUXAP10 could promote cell proliferation in colorectal cancer. However, the clinical significance and potential role of DUXAP10 in human pancreatic cancer (PC) has not been uncovered. In this study, we found that DUXAP10 was overexpressed in PC tissues compared with normal tissues. DUXAP10 expression was significantly higher in patients with an advanced TNM stage and positive lymph node metastasis...
December 29, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29282356/long-non-coding-rna-dleu1-predicts-poor-prognosis-of-gastric-cancer-and-contributes-to-cell-proliferation-by-epigenetically-suppressing-klf2
#6
Xiaobin Li, Zongze Li, Ziwen Liu, Jianchun Xiao, Shuting Yu, Yimin Song
Currently, accumulating documents have paid great attention to the critical role of long non-coding RNAs. The long non-coding RNAs DLEU1 has been demonstrated to be dysregulated in many solid tumors and hematological malignancies. However, the detailed descriptions about its potential roles and molecular mechanism in gastric cancer (GC) are still blurry. As for our research, it was found out that DLEU1 was observably intensified in GC tissues and cell lines. And highly expressed DLEU1 was relevant to tumor size, advanced stage of pathology and lymph node metastasis in GC patients...
December 27, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/29281729/histone-demethylase-lsd1-restricts-influenza-a-virus-infection-by-erasing-ifitm3-k88-monomethylation
#7
Jiaoyu Shan, Binbin Zhao, Zhao Shan, Jia Nie, Rong Deng, Rui Xiong, Andy Tsun, Weiqi Pan, Hanzhi Zhao, Ling Chen, Ying Jin, Zhikang Qian, Kawing Lui, Rui Liang, Dan Li, Bing Sun, Dimitri Lavillette, Ke Xu, Bin Li
The histone demethylase LSD1 has been known as a key transcriptional coactivator for DNA viruses such as herpes virus. Inhibition of LSD1 was found to block viral genome transcription and lytic replication of DNA viruses. However, RNA virus genomes do not rely on chromatin structure and histone association, and the role of demethylase activity of LSD1 in RNA virus infections is not anticipated. Here, we identify that, contrary to its role in enhancing DNA virus replication, LSD1 limits RNA virus replication by demethylating and activating IFITM3 which is a host restriction factor for many RNA viruses...
December 27, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/29274582/bioactivity-evaluation-of-natural-product-%C3%AE-mangostin-as-a-novel-xanthone-based-lysine-specific-demethylase-1-inhibitor-to-against-tumor-metastasis
#8
Chao Han, Zhongrui Li, Jiqin Hou, Zhen Wang, Dingqiao Xu, Guimin Xue, Lingyi Kong
Lysine-specific demethylase 1 (LSD1), which has been reported to be overexpressed in several human cancers, has recently emerged as an attractive therapeutic target for treating cancer. To date, almost all the developed LSD1 inhibitors are chemo-synthesized molecules, while α-mangostin is first characterized as xanthone-based natural inhibitor in the current study with IC50 values of 2.81 ± 0.44 μM. Bioactivity study and docking analysis indicated that α-mangostin could inhibit MDA-MB-231 cells migration and evasion through inhibit intracellular LSD1 activity...
December 8, 2017: Bioorganic Chemistry
https://www.readbyqxmd.com/read/29259010/lsd1-stimulates-cancer-associated-fibrobasts-to-drive-notch3-dependent-self-renewal-of-liver-cancer-stem-like-cells
#9
Chungang Liu, Limei Liu, Xuejiao Chen, Jiamin Cheng, Heng Zhang, Chengcheng Zhang, Juanjuan Shan, Junjie Shen, Cheng Qian
Cancer stem-like cells (CSC) in hepatocellular carcinoma (HCC) are thought to mediate therapeutic resistance and poor survival outcomes, but their intrinsic and extrinsic control is not well understood. In this study, we found that the chromatin modification factor LSD1 is highly expressed in HCC CSC where it decreases during differentiation. LSD1 was responsible for maintaining CSC self-renewal and tumorigenicity in HCC and its overexpression was sufficient to drive self-renewal of non-CSC.Levels of acetylated LSD1 were low in CSC with high LSD1 activity, and these CSC were capable of self-renewal...
December 19, 2017: Cancer Research
https://www.readbyqxmd.com/read/29247860/structure-activity-studies-on-n-substituted-tranylcypromine-derivatives-lead-to-selective-inhibitors-of-lysine-specific-demethylase-1-lsd1-and-potent-inducers-of-leukemic-cell-differentiation
#10
Johannes Schulz-Fincke, Mirjam Hau, Jessica Barth, Dina Robaa, Dominica Willmann, Andreas Kürner, Julian Haas, Gabriele Greve, Tinka Haydn, Simone Fulda, Michael Lübbert, Steffen Lüdeke, Tobias Berg, Wolfgang Sippl, Roland Schüle, Manfred Jung
FAD-dependent lysine-specific demethylase 1 (LSD1) is overexpressed or deregulated in many cancers such as AML and prostate cancer and hence is a promising anticancer target with first inhibitors in clinical trials. Clinical candidates are N-substituted derivatives of the dual LSD1-/monoamine oxidase-inhibitor tranylcypromine (2-PCPA) with a basic amine function in the N-substituent. These derivatives are selective over monoamine oxidases. So far, only very limited information on structure-activity studies about this important class of LSD1 inhibitors is published in peer reviewed journals...
December 6, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29233982/cacul1-reciprocally-regulates-sirt1-and-lsd1-to-repress-ppar%C3%AE-and-inhibit-adipogenesis
#11
Min Jun Jang, Ui-Hyun Park, Jeong Woo Kim, Hanbyeul Choi, Soo-Jong Um, Eun-Joo Kim
Peroxisome proliferator-activated receptor γ (PPARγ) is the master regulator of adipocyte differentiation and is closely linked to the development of obesity. Despite great progress in elucidating the transcriptional network of PPARγ, epigenetic regulation of this pathway by histone modification remains elusive. Here, we found that CDK2-associated cullin 1 (CACUL1), identified as a novel SIRT1 interacting protein, directly bound to PPARγ through the co-repressor nuclear receptor (CoRNR) box 2 and repressed the transcriptional activity and adipogenic potential of PPARγ...
December 11, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29232656/targeting-oral-cancer-epigenome-via-lsd1
#12
Manish V Bais
No abstract text is available yet for this article.
December 11, 2017: Aging
https://www.readbyqxmd.com/read/29226080/fad-influx-enhances-neuronal-differentiation-of-human-neural-stem-cells-by-facilitating-nuclear-localization-of-lsd1
#13
Kazumi Hirano, Masakazu Namihira
Flavin adenine dinucleotide (FAD), synthesized from riboflavin, is redox cofactor in energy production and plays an important role in cell survival. More recently, riboflavin deficiency has been linked to developmental disorders, but its role in stem cell differentiation remains unclear. Here, we show that FAD treatment, using DMSO as a solvent, enabled an increase in the amount of intracellular FAD and promoted neuronal differentiation of human neural stem cells (NSCs) derived not only from fetal brain, but also from induced pluripotent stem cells...
December 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/29225781/lsd1-a-double-edged-sword-confers-dynamic-chromatin-regulation-but-commonly-promotes-aberrant-cell-growth
#14
REVIEW
Meghan M Kozub, Ryan M Carr, Gwen L Lomberk, Martin E Fernandez-Zapico
Histone-modifying enzymes play a critical role in chromatin remodeling and are essential for influencing several genome processes such as gene expression and DNA repair, replication, and recombination. The discovery of lysine-specific demethylase 1 (LSD1), the first identified histone demethylase, dramatically revolutionized research in the field of epigenetics. LSD1 plays a pivotal role in a wide range of biological operations, including development, cellular differentiation, embryonic pluripotency, and disease (for example, cancer)...
2017: F1000Research
https://www.readbyqxmd.com/read/29207083/a-type-2-diabetes-associated-snp-in-kcnq1-rs163184-modulates-the-binding-activity-of-the-locus-for-sp3-and-lsd1-kdm1a-potentially-affecting-cdkn1c-expression
#15
Masaki Hiramoto, Haruhide Udagawa, Naoko Ishibashi, Eri Takahashi, Yasushi Kaburagi, Keisuke Miyazawa, Nobuaki Funahashi, Takao Nammo, Kazuki Yasuda
Although genome-wide association studies have shown that potassium voltage-gated channel subfamily Q member 1 (KCNQ1) is one of the genes that is most significantly associated with type 2 diabetes mellitus (T2DM), functionally annotating disease-associated single nucleotide polymorphisms (SNPs) remains a challenge. Recently, our group described a novel strategy to identify proteins that bind to SNP-containing loci in an allele-specific manner. The present study successfully applied this strategy to investigate rs163184, a T2DM susceptibility SNP located in the intronic region of KCNQ1...
November 20, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29198865/histone-h3-peptides-incorporating-modified-lysine-residues-as-lysine-specific-demethylase-1-inhibitors
#16
Taeko Kakizawa, Yosuke Ota, Yukihiro Itoh, Takayoshi Suzuki
Lysine-specific demethylase 1 (LSD1) is a flavin-dependent enzyme that removes methyl groups from mono- or dimethylated lysine residues at the fourth position of histone H3. We have previously reported several histone H3 peptides containing an LSD1 inactivator motif at Lys-4. In this study, histone H3 peptides having a trans-2-phenylcyclopropylamine (PCPA), a 2,5-dihydro-1H-pyrrole, and a 1,2,3,6-tetrahydropyridine moiety at Lys-4 were prepared along with related compounds possessing a shorter side chain at the fourth position...
November 23, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/29190800/err%C3%AE-protein-is-stabilized-by-lsd1-in-a-demethylation-independent-manner
#17
Julie Carnesecchi, Catherine Cerutti, Jean-Marc Vanacker, Christelle Forcet
The LSD1 histone demethylase is highly expressed in breast tumors where it constitutes a factor of poor prognosis and promotes traits of cancer aggressiveness such as cell invasiveness. Recent work has shown that the Estrogen-Related Receptor α (ERRα) induces LSD1 to demethylate the Lys 9 of histone H3. This results in the transcriptional activation of a number of common target genes, several of which being involved in cellular invasion. High expression of ERRα protein is also a factor of poor prognosis in breast tumors...
2017: PloS One
https://www.readbyqxmd.com/read/29174711/high-immunoexpression-of-ki67-ezh2-and-smyd3-in-diagnostic-prostate-biopsies-independently-predicts-outcome-in-patients-with-prostate-cancer
#18
João Lobo, Ângelo Rodrigues, Luís Antunes, Inês Graça, João Ramalho-Carvalho, Filipa Quintela Vieira, Ana Teresa Martins, Jorge Oliveira, Carmen Jerónimo, Rui Henrique
INTRODUCTION: Overtreatment is a major concern in patients with prostate cancer (PCa). Prognostic biomarkers discriminating indolent from aggressive disease in prostate biopsy are urgently needed. We aimed to evaluate the prognostic value of Ki67, EZH2, LSD1, and SMYD3 immunoexpression in diagnostic biopsies from a cohort of PCa patients with long term follow-up. MATERIALS AND METHODS: A series of 189 consecutive prostate biopsies diagnosed with PCa (1997-2001) in a cancer center was included in the study, with follow-up last updated in November 2016...
November 22, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/29161028/exploring-the-active-centre-of-lsd1-corest-complex-by-molecular-dynamics-simulation-utilizing-its-co-crystallized-cofactor-tetrahydrofolate-as-a-probe
#19
Waleed A A Zalloum, Hiba M Zalloum
Epigenetic targeting of cancer is a recent era to manipulate the gene without destroying the genetic material. Lysine-specific demethylase 1 (LSD1) is one of the enzymes associated with the chromatin for post-translational modifications, where it demethylates lysine amino acid in the chromatin H3 tail. Many studies showed that inhibiting LSD1 could potentially be used to treat cancer epigenetically. LSD1 is associated with its corepressor protein CoREST, and uses tetrahydrofolate as a cofactor to accept CH2 from the demethylation process...
November 21, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/29159826/pharmacological-and-molecular-approaches-for-the-treatment-of-%C3%AE-hemoglobin-disorders
#20
REVIEW
Neelam Lohani, Nupur Bhargava, Anjana Munshi, Sivaprakash Ramalingam
β-hemoglobin disorders, such as β-thalassemia and sickle cell anemia are among the most prevalent inherited genetic disorders worldwide. These disorders are caused by mutations in the gene encoding hemoglobin-β (HBB), a vital protein found in red blood cells (RBCs) that carries oxygen from lungs to all parts of the human body. As a consequence, there has been an enduring interest in this field in formulating therapeutic strategies for the treatment of these diseases. Currently, there is no cure available for hemoglobin disorders, although, some patients have been treated with bone marrow transplantation, whose scope is limited because of the difficulty in finding a histocompatible donor and also due to transplant-associated clinical complications that can arise during the treatment...
November 20, 2017: Journal of Cellular Physiology
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