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https://www.readbyqxmd.com/read/29032265/effect-of-antithymocyte-globulin-source-on-outcomes-of-hla-matched-siblings-allogeneic-hematopoietic-stem-cell-transplantation-for-patients-with-severe-aplastic-anemia
#1
Xin Chen, Jialin Wei, Yong Huang, Yi He, Donglin Yang, Rongli Zhang, Erlie Jiang, Qiaoling Ma, Weihua Zhai, Jianfeng Yao, Guixin Zhang, Sizhou Feng, Mingzhe Han
OBJECTIVE: To evaluate efficacy of porcine antithymocyte globulin (ATG) in HLA-matched siblings allogeneic hematopoietic stem cell transplantation (MSD-HSCT) for patients with severe aplastic anemia (SAA). METHODS: The clinical data of 113 SAA patients who received MSD-HSCT from January 2005 to November 2016 were analyzed retrospectively. Of these, 58 patients received rabbit ATG as a part of conditioning regimen (R-ATG group), while the other 55 patients received porcine ATG (P-ATG group)...
October 12, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29029524/comparative-efficacy-and-safety-of-antibody-induction-therapy-for-the-treatment-of-kidney-a-network-meta-analysis
#2
Mingjie Shao, Tingting Tian, Xinyan Zhu, Yingzi Ming, Yasuko Iwakiri, Shaojun Ye, Qifa Ye
To evaluate the efficacy and safety of antibody induction therapies in kidney transplantation. Systematic literature searches were undertaken using MEDLINE, Embase, and Cochrane Library database from 1980 to 2016. Randomized controlled trials (RCTs) comparing three antibody induction therapies (alemtuzumab, interleukin-2 receptor antibodies and antithymocyte globulin) between each other were identified. Bayesian network meta-analysis was used to combine both the direct and indirect evidence on treatment efficacy and its safety...
September 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29028314/heterologous-gene-expression-of-n-terminally-truncated-variants-of-lippks1-suggests-a-functionally-critical-structural-motif-in-the-n-terminus-of-modular-polyketide-synthase
#3
Satoshi Yuzawa, Constance B Bailey, Tatsuya Fujii, Renee Jocic, Jesus F Barajas, Veronica T Benites, Edward E K Baidoo, Yan Chen, Christopher J Petzold, Leonard Katz, Jay D Keasling
Streptomyces genomes have a high G + C content and typically use an ATG or GTG codon to initiate protein synthesis. Although gene-finding tools perform well in low GC genomes, it is known that the accuracy in predicting a translational start site (TSS) is much less for high GC genomes. LipPks1 is a Streptomyces-derived, well-characterized modular polyketide synthase (PKS). Using this enzyme as a model, we experimentally investigated the effects of alternative TSSs using a heterologous host, Streptomyces venezuelae...
October 17, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/29025701/distribution-of-h3k27me3-h3k9me3-and-h3k4me3-along-autophagy-related-genes-highly-expressed-in-starved-zebrafish-myotubes
#4
Peggy R Biga, Mary N Latimer, Jacob Michael Froehlich, Jean-Charles Gabillard, Iban Seiliez
The zebrafish (Danio rerio) remains the teleost fish of choice for biological investigations due to the vast array of molecular tools and resources available. To better understand the epigenetic regulation of autophagy, we utilized a primary myotube culture system generated from isolated myogenic precursor cells (MPCs) from zebrafish grown under starvation conditions using a media devoid of serum and amino acids. Here, we report starvation-induced regulation of several autophagy-related genes (atg) expression and profile the distribution of H3K27me3, H3K9me3, and H3K4me3 marks along lc3b, atg4b and p62/sqstm1 loci...
October 12, 2017: Biology Open
https://www.readbyqxmd.com/read/29024177/differential-regulation-of-two-flna-transcripts-explains-some-of-the-phenotypic-heterogeneity-in-the-loss-of-function-filaminopathies
#5
Zandra A Jenkins, Alison Macharg, Cheng-Yee Chang, Margriet van Kogelenberg, Tim Morgan, Sophia Frentz, Wenhua Wei, Jacek Pilch, Mark Hannibal, Nicola Foulds, George McGillivray, Richard J Leventer, Sixto García-Miñaúr, Stuart Sugito, Scott Nightingale, David M Markie, Tracy Dudding, Raj P Kapur, Stephen P Robertson
Loss-of-function mutations in the X-linked gene FLNA can lead to abnormal neuronal migration, vascular and cardiac defects and congenital intestinal pseudo-obstruction (CIPO), the latter characterised by anomalous intestinal smooth muscle layering. Survival in male hemizygotes for such mutations is dependent on retention of residual FLNA function but it is unclear why a subgroup of males with mutations in the 5' end of the gene can present with CIPO alone. Here we demonstrate evidence for the presence of two FLNA isoforms differing by 28 residues at the N-terminus initiated at ATG(+1) and ATG(+82) ...
October 12, 2017: Human Mutation
https://www.readbyqxmd.com/read/28986715/induction-therapy-of-basiliximab-versus-antithymocyte-globulin-in-renal-allograft-a-systematic-review-and-meta-analysis
#6
Kun Wang, Xianlin Xu, Min Fan
OBJECTIVE: The aim of this meta-analysis was to evaluate the efficacy of basiliximab versus antithymocyte globulin for induction therapy in renal allograft. METHODS: Medline (PubMed), Embase, Ovid, Cochrane, and the Chinese Biomedical Literature databases were searched to identify prospective randomized controlled trials that compared basiliximab with antithymocyte globulin (ATG) for induction therapy in renal transplantation. RevMan 5.1 software and Stat Manager V4...
October 6, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/28982185/promoter-variants-of-xa23-alleles-affect-bacterial-blight-resistance-and-evolutionary-pattern
#7
Hua Cui, Chunlian Wang, Tengfei Qin, Feifei Xu, Yongchao Tang, Ying Gao, Kaijun Zhao
Bacterial blight, caused by Xanthomonas oryzae pv. oryzae (Xoo), is the most important bacterial disease in rice (Oryza sativa L.). Our previous studies have revealed that the bacterial blight resistance gene Xa23 from wild rice O. rufipogon Griff. confers the broadest-spectrum resistance against all the naturally occurring Xoo races. As a novel executor R gene, Xa23 is transcriptionally activated by the bacterial avirulence (Avr) protein AvrXa23 via binding to a 28-bp DNA element (EBEAvrXa23) in the promoter region...
2017: PloS One
https://www.readbyqxmd.com/read/28981093/long-non-coding-rnas-involved-in-autophagy-regulation
#8
REVIEW
Lixian Yang, Hanying Wang, Qi Shen, Lifeng Feng, Hongchuan Jin
Autophagy degrades non-functioning or damaged proteins and organelles to maintain cellular homeostasis in a physiological or pathological context. Autophagy can be protective or detrimental, depending on its activation status and other conditions. Therefore, autophagy has a crucial role in a myriad of pathophysiological processes. From the perspective of autophagy-related (ATG) genes, the molecular dissection of autophagy process and the regulation of its level have been largely unraveled. However, the discovery of long non-coding RNAs (lncRNAs) provides a new paradigm of gene regulation in almost all important biological processes, including autophagy...
October 5, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28980865/morphometric-analysis-of-autophagy-related-structures-in-saccharomyces-cerevisiae
#9
Tatsuya Kawaoka, Shinsuke Ohnuki, Yoshikazu Ohya, Kuninori Suzuki
When macroautophagy (autophagy) is induced by nutrient starvation or rapamycin treatment, Atg (autophagy-related) proteins are assembled at a restricted region close to the vacuole. Subsequently, the phagophore expands to form a closed autophagosome. In Saccharomyces cerevisiae cells overexpressing precursor Ape1 (prApe1), a specific autophagosome cargo protein, the phagophore can be visualized as a cup-shaped structure labeled with green fluorescent protein (GFP)-tagged Atg8. Previously, our group has shown that the maximum length of GFP-Atg8-labeled structures reflects the magnitude of bulk autophagy...
October 5, 2017: Autophagy
https://www.readbyqxmd.com/read/28979918/dcas9-mediated-transcriptional-activation-of-tissue-inhibitor-of-metalloproteinases
#10
Tyler Duellman, Andrea Doll, Xi Chen, Rie Wakamiya, Jay Yang
Selective gene activation with the dCas9 (deactivated clustered regularly interspaced short palindromic repeats [CRISPR] associated protein 9)/CRISPR targeting of a transcriptional activator effector is now well established. However, the optimal targeting of guide RNA (gRNA) for a given gene is largely a matter of trial and error. We explored the optimal targeting site for tissue inhibitor of metalloproteinases (TIMPs) by first screening multiple gRNA target sites using a luciferase-based promoter-reporter system and next confirmed the effective TIMP induction in the mouse motor neuron-like neuron-enriched spinal cord 34 (NSC34) cells...
2017: Metalloproteinases in Medicine
https://www.readbyqxmd.com/read/28979680/low-concentration-of-chloroquine-enhanced-efficacy-of-cisplatin-in-the-treatment-of-human-ovarian-cancer-dependent-on-autophagy
#11
Jie Zhu, Ya Zheng, Haiyan Zhang, Jing Zhu, Hong Sun
BACKGROUND: Cisplatin is a common used anti-tumor drug in ovarian cancer therapy with potent effect. Studies have reported that autophagy works as a cell-survival process in cancer, chloroquine has been added to various chemotherapeutic drugs. In the current study, we aim to evaluate whether chloroquine can enhance the effects of cisplatin in treating ovarian cancer. METHODS: CCK-8 assay was used to detect cell viability. Transwell assay was used to examine cell migration and invasion...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28978855/allogeneic-hematopoietic-stem-cell-transplantation-using-atg-prophylaxis-and-treatment
#12
Nobuhiro Nishio, Yoshiyuki Takahashi, Seiji Kojima
Graft versus host disease (GVHD) following allogeneic hematopoietic stem cell transplantation is associated with an increase in patient transplant-related morbidity and mortality and a decrease in quality of life. Adequate immune suppression is critical to prevent GVHD without increasing the risk of developing a severe infection or relapse of malignancy. Anti-T cell globulin (ATG) combined with other immunosuppressive drugs can reduce the risk of severe acute GVHD and extensive chronic GVHD without enhancing the rate of severe infection or relapse of malignancy...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28978824/the-cutting-edge-of-aplastic-anemia-treatment
#13
Naoshi Obara
Aplastic anemia is a syndrome in which hematopoietic stem cells are decreased and bone marrow hypoplasia and pancytopenia are observed; it is considered as a T cell-mediated autoimmune disease. Recently, it has been reported that gene mutations suggestive of clonal hematopoiesis are detected in approximately one third of the patients with aplastic anemia. Among treatment approaches other than hematopoietic stem cell transplantation, immunosuppressive therapy with antithymocyte globulin (ATG) plus cyclosporin is a basic approach, although it has been shown that eltrombopag, a thrombopoietin receptor agonist, is effective and that the recovery of hematopoiesis in three blood lineage is observed in some patients...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28978663/distinct-tp73-dapk2-atg5-pathway-involvement-in-ato-mediated-cell-death-versus-atra-mediated-autophagy-responses-in-apl
#14
Magali Humbert, Elena A Federzoni, Mario P Tschan
We have previously demonstrated that the death-associated protein kinase 2 (DAPK2) expression is significantly reduced in acute myeloid leukemia (AML), particularly in acute promyelocytic leukemia (APL) blast cells. In this study, we aimed at further understanding DAPK2 function and regulation during arsenic trioxide (ATO) cytotoxic or all-trans retinoic acid (ATRA) differentiation therapy in APL cells. We found that the p53 family member transactivation domain-p73 isoform (TAp73) binds to and activates the DAPK2 promoter, whereas the dominant-negative ΔNp73 isoform inhibits DAPK2 transcription...
October 4, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28976939/autophagy-proteins-in-viral-exocytosis-and-anti-viral-immune-responses
#15
REVIEW
Christian Münz
Abstract: Autophagy-related (Atg) gene-encoded proteins were originally described for their crucial role in macroautophagy, a catabolic pathway for cytoplasmic constituent degradation in lysosomes. Recently it has become clear that modules of this machinery can also be used to influence endo- and exocytosis. This mini review discusses how these alternative Atg functions support virus replication and viral antigen presentation on major histocompatibility (MHC) class I and II molecules. A better understanding of the modular use of the macroautophagy machinery might enable us to manipulate these alternative functions of Atg proteins during anti-viral therapies and to attenuate virus-induced immune pathologies...
October 4, 2017: Viruses
https://www.readbyqxmd.com/read/28969794/a-part-of-the-upstream-promoter-region-of-shn2-gene-directs-trichome-specific-expression-in-arabidopsis-thaliana-and-heterologous-plants
#16
Vajinder Kumar, Dipnarayan Saha, Dhiraj Ramesh Thakare, Anjana Jajoo, Pradeep Kumar Jain, Shripad Ramachandra Bhat, Ramamurthy Srinivasan
A promoter trap mutant line of Arabidopsis carrying a promoterless β-glucuronidase (uidA) gene exhibited GUS expression predominantly in all the trichomes. In this mutant, the T-DNA insertion was localized at 147bp upstream of the putative start codon, ATG, of the At5g11190 (SHN2) gene. Transcript profiling of the SHN2 suggested a constitutive expression of the gene in all the tissues. Deletion analysis of the upstream sequences established that a 565bp (-594/-30) region confers trichome-specific gene expression...
November 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28969531/kidney-transplant-in-a-human-immunodeficiency-virus-positive-patient-case-report-of-drug-interactions
#17
Mümtaz Yılmaz, Deniz Gökengin, Osman Bozbıyık, Cüneyt Hoşcoşkun, Ayşe Uyan, Hüseyin Töz
End-stage renal disease in the human immunodeficiency virus-positive population is increasing. Kidney transplant is the optimal therapy for this population rather than dialysis modalities if some criteria are met. These include undetectable plasma human immunodeficiency virus RNA, CD4 cell count over 200 cells/μL, and the absence of any AIDS-defining illness. Here, we describe the first living-donor kidney transplant in a human immunodeficiency virus-positive recipient in Turkey. The patient, a 52-year-old male diagnosed as human immunodeficiency virus positive, was on antiretroviral therapy, which consisted of 400 mg twice daily darunavir, 100 mg/day ritonavir, and 50 mg/day dolutegravir...
September 30, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28968134/autophagy-protects-auditory-hair-cells-against-neomycin-induced-damage
#18
Zuhong He, Lingna Guo, Yilai Shu, Qiaojun Fang, Han Zhou, Yongze Liu, Dingding Liu, Ling Lu, Xiaoli Zhang, Xiaoqiong Ding, Dong Liu, Mingliang Tang, Weijia Kong, Suhua Sha, Huawei Li, Xia Gao, Renjie Chai
Aminoglycosides are toxic to sensory hair cells (HCs). Macroautophagy/autophagy is an essential and highly conserved self-digestion pathway that plays important roles in the maintenance of cellular function and viability under stress. However, the role of autophagy in aminoglycoside-induced HC injury is unknown. Here, we first found that autophagy activity was significantly increased, including enhanced autophagosome-lysosome fusion, in both cochlear HCs and HEI-OC-1 cells after neomycin or gentamicin injury, suggesting that autophagy might be correlated with aminoglycoside-induced cell death...
October 2, 2017: Autophagy
https://www.readbyqxmd.com/read/28965225/horse-versus-rabbit-antithymocyte-globulin-in-immunosuppressive-therapy-of-treatment-na%C3%A3-ve-aplastic-anemia-a-systematic-review-and-meta-analysis
#19
Nan Yang, Jinqiu Chen, Hui Zhang, Zhiming Dai, Huan Yao, Xiaorong Ma, Ju Bai, Yilin Zhang, Wanggang Zhang
The first-line formulation of antithymocyte globulin (ATG) remains unknown. We aimed to systematically review evidence to compare the efficacy and safety profiles of different ATGs. We did a systematic review and meta-analysis of randomized controlled trials (RCTs) and cohort controlled studies comparing horse and rabbit ATG in immunosuppressive therapy of treatment-naïve aplastic anemia. We searched The Cochrane Library, PubMed, EMBASE, ClinicalTrials.gov , and conference proceedings of American Society of Hematology and European Society for Blood and Marrow Transplantation annual meetings...
September 30, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28961919/adenine-enrichment-at-the-fourth-cds-residue-in-bacterial-genes-is-consistent-with-error-proofing-for-1-frameshifts
#20
Liam Abrahams, Laurence D Hurst
Beyond selection for optimal protein functioning, coding sequences (CDSs) are under selection at the RNA and DNA levels. Here we identify a possible signature of 'dual-coding', namely extensive adenine (A) enrichment at bacterial CDS fourth sites. In 99.07% of studied bacterial genomes, fourth site A use is greater than expected given genomic A-starting codon use. Arguing for nucleotide level selection, A-starting serine and arginine second codons are heavily utilised when compared with their non-A starting synonyms...
August 24, 2017: Molecular Biology and Evolution
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