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Shukla V, Wang H, Varticovski L, Baek S, Wang R, Wu X, Echtenkamp F, Hernandez FV, Prothro KP, Gara SK, Zhang MR, Shiffka S, Raziuddin R, Neckers LM, Linehan WM, Chen H, Hager GL, Schrump DS. Genome-wide Analysis Identifies Nuclear Factor 1C as a Novel Transcription Factor and Potential Therapeutic Target in Small Cell Lung Cancer. J Thorac Oncol 2024:S1556-0864(24)00131-X. [PMID: 38583771 DOI: 10.1016/j.jtho.2024.03.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 03/14/2024] [Accepted: 03/30/2024] [Indexed: 04/09/2024]
Abstract
BACKGROUND Recent insights regarding mechanisms mediating stemness, heterogeneity, and metastatic potential of lung cancers have yet to be fully translated to effective regimens for the treatment of these malignancies. This study sought to identify novel targets for lung cancer therapy. METHODS Transcriptomes and DNA methylomes of 14 SCLC and 10 NSCLC lines were compared to normal human small airway epithelial cells (SAEC) and induced pluripotent stem cell (iPSC) clones derived from SAEC. SCLC lines, lung iPSC (Lu-iPSC), and SAEC were further evaluated by DNase I hypersensitivity (DHS-seq). Changes in chromatin accessibility and depths of transcription factor (TF) footprints were quantified using Bivariate analysis of Genomic Footprint. Standard techniques were used to examine growth and tumorigenencity as well as changes in transcriptomes and glucose metabolism of SCLC cells following Nuclear Factor 1C (NFIC) knockdown, and to examine NFIC expression in SCLC cells following exposure to BET inhibitors. RESULTS Significant commonality of transcriptomes and DNA methylomes was observed between Lu-iPSC and SCLC; however, this analysis was uninformative regarding pathways unique to lung cancer. Linking results of DNase-seq to RNA-seq enabled identification of networks not previously associated with SCLC. When combined with footprint depth, NFIC, a transcription factor not previously associated with SCLC, had the highest score of occupancy at open chromatin sites. Knockdown of NFIC impaired glucose metabolism, decreased stemness, and inhibited growth of SCLC cells in-vitro and in-vivo. ChIP-seq analysis identified numerous sites occupied by Bromodomain-containing protein 4 (BRD4) in the NFIC promoter region. Knock-down of BRD4 or treatment with Bromodomain and extra-terminal domain (BET) inhibitors (BETi) markedly reduced NFIC expression in SCLC cells and SCLC PDX models. Approximately 8% of genes downregulated by BETi treatment were repressed by NFIC knockdown in SCLC, while 34% of genes repressed following NFIC knockdown were also downregulated in SCLC cells following BETi treatment. CONCLUSIONS NFIC is a key TF and possible mediator of transcriptional regulation by BET family proteins in SCLC. Our findings highlight the potential of genome-wide chromatin accessibility analysis for elucidating mechanisms of pulmonary carcinogenesis and identifying novel targets for lung cancer therapy.
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Affiliation(s)
- Vivek Shukla
- Thoracic Epigenetics Section, Thoracic Surgery Branch
| | - Haitao Wang
- Thoracic Epigenetics Section, Thoracic Surgery Branch
| | | | | | - Ruihong Wang
- Thoracic Epigenetics Section, Thoracic Surgery Branch
| | - Xinwei Wu
- Thoracic Epigenetics Section, Thoracic Surgery Branch
| | | | | | | | | | - Mary R Zhang
- Thoracic Epigenetics Section, Thoracic Surgery Branch
| | | | | | | | | | - Haobin Chen
- Thoracic Epigenetics Section, Thoracic Surgery Branch
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Rashid S, Goyal M, Lalor K, Al-Robaidi K, Shukla V, Rahman F, Ramani M. Long-Term Video Electroencephalographic Monitoring in <30-Week Gestational Age Infants With High-Grade Intraventricular Hemorrhage. Pediatr Neurol 2024; 150:44-47. [PMID: 37952260 DOI: 10.1016/j.pediatrneurol.2023.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 09/22/2023] [Accepted: 10/13/2023] [Indexed: 11/14/2023]
Abstract
BACKGROUND Despite recognizing high seizure risk, the current consensus guidelines on evaluating seizures in preterm neonates are based on limited data. We chose to investigate the seizure risk in high-risk preterm (<30 weeks gestation) asymptomatic (without a clinical concern for seizures) infants with high-grade intraventricular hemorrhage who underwent long-term video electroencephalographic monitoring. METHODS We performed a comprehensive retrospective review on all infants of <30-week gestational age admitted to the University of Alabama at Birmingham Regional Neonatal Intensive Care Unit from June 2018 to October 2022. We selected those patients who underwent electroencephalographic monitoring without a prior clinical concern for seizures. We recorded gender, gestational age, APGAR scores (one and five minutes), intraventricular hemorrhage (grade, age at diagnosis), and electroencephalographic monitoring (timing and duration) data. RESULTS Among 37 premature infants, six had seizures detected on electroencephalographic monitoring. All six infants had subclinical seizures. Only two of six patients had a clinical correlation (although not identified by the providers) with some of their seizures. Patients with seizures were significantly younger in chronological age (median age 6.5 days vs 9 days, P value 0.009) at the time of the electroencephalographic monitoring initiation and were more likely to have subsequent monitoring studies (P value 0.0418). CONCLUSIONS Long-term video electroencephalographic monitoring performed after the diagnosis of high-grade intraventricular hemorrhage captured seizures in ∼16% of asymptomatic premature neonates of <30 weeks' gestation. Patients identified to have seizures were significantly younger (chronological age) at the time of the electroencephalographic monitoring initiation and were more likely to be remonitored.
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Affiliation(s)
- Salman Rashid
- Division of Pediatric Neurology, University of Alabama, Birmingham, Alabama.
| | - Monisha Goyal
- Division of Pediatric Neurology, University of Alabama, Birmingham, Alabama; School of Medicine, University of Alabama, Birmingham, Alabama
| | - Kathryn Lalor
- Division of Pediatric Neurology, University of Alabama, Birmingham, Alabama; School of Medicine, University of Alabama, Birmingham, Alabama
| | - Khaled Al-Robaidi
- Division of Pediatric Neurology, University of Alabama, Birmingham, Alabama; School of Medicine, University of Alabama, Birmingham, Alabama
| | - Vivek Shukla
- Division of Pediatric Neurology, University of Alabama, Birmingham, Alabama; Division of Neonatology, University of Alabama, Birmingham, Alabama
| | - Fazlur Rahman
- Department of Biostatistics, University of Alabama, Birmingham, Alabama
| | - Manimaran Ramani
- Division of Neonatology, University of Alabama, Birmingham, Alabama
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Switchenko N, Shukla V, Mwenechanya M, Chomba E, Patel A, Hibberd PL, Ambalavanan N, Figueroa L, Mazariegos M, Krebs NF, Goudar SS, Derman R, Esamai F, Liechty EA, Bucher S, Saleem S, Goldenberg RL, Lokangaka A, Tshefu A, Bose CL, Koso-Thomas M, Tan S, Nolen T, McClure EM, Carlo WA. Neonatal Respiratory Support Utilization in Low- and Middle-Income Countries: A Registry-Based Observational Study. Neonatology 2023; 121:116-124. [PMID: 38048757 DOI: 10.1159/000534777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 10/11/2023] [Indexed: 12/06/2023]
Abstract
BACKGROUND Newborns with hypoxemia often require life-saving respiratory support. In low-resource settings, it is unknown if respiratory support is delivered more frequently to term infants or preterm infants. We hypothesized that in a registry-based birth cohort in 105 geographic areas in seven low- and middle-income countries, more term newborns received respiratory support than preterm newborns. METHODS This is a hypothesis-driven observational study based on prospectively collected data from the Maternal and Newborn Health Registry of the NICHD Global Network for Women's and Children's Health Research. Eligible infants enrolled in the registry were live-born between 22 and 44 weeks gestation with a birth weight ≥400 g and born from January 1, 2015, to December 31, 2018. Frequency data were obtained to report the number of term and preterm infants who received treatment with oxygen only, CPAP, or mechanical ventilation. Test for trends over time were conducted using robust Poisson regression. RESULTS 177,728 (86.3%) infants included in this study were term, and 28,249 (13.7%) were preterm. A larger number of term infants (n = 5,108) received respiratory support compared to preterm infants (n = 3,287). Receipt of each mode of respiratory support was more frequent in term infants. The proportion of preterm infants who received respiratory support (11.6%) was higher than the proportion of term infants receiving respiratory support (2.9%, p < 0.001). The rate of provision of respiratory support varied between sites. CONCLUSIONS Respiratory support was more frequently used in term infants expected to be at low risk for respiratory disorders compared to preterm infants.
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Affiliation(s)
- Nora Switchenko
- Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Vivek Shukla
- Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | | | - Elwyn Chomba
- Department of Pediatrics, University Teaching Hospital, Lusaka, Zambia
| | - Archana Patel
- Lata Medical Research Foundation, India and Datta Meghe Institute of Medical Sciences, Nagpur, India
| | | | | | | | | | - Nancy F Krebs
- Department of Pediatrics, University of Colorado, Aurora, Colorado, USA
| | - Shivaprasad S Goudar
- KLE Academy of Higher Education and Research's J. N. Medical College, Belagavi, India
| | - Richard Derman
- Department of Pediatrics, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Fabian Esamai
- Department of Pediatrics, Moi University, Eldoret, Kenya
| | - Edward A Liechty
- Department of Pediatrics, Indiana University, Bloomington, Indiana, USA
| | - Sheri Bucher
- Department of Pediatrics, Indiana University, Bloomington, Indiana, USA
| | - Sarah Saleem
- Department of Community Health Sciences, Aga Khan University, Karachi, Pakistan
| | - Robert L Goldenberg
- Department of Obstetrics/Gynecology, Columbia University, New York, New York, USA
| | - Adrien Lokangaka
- Kinshasa School of Public Health, Kinshasa, Democratic Republic of the Congo
| | - Antoinette Tshefu
- Kinshasa School of Public Health, Kinshasa, Democratic Republic of the Congo
| | - Carl L Bose
- Department of Pediatrics, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Marion Koso-Thomas
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland, USA
| | - Sylvia Tan
- RTI International, Durham, North Carolina, USA
| | - Tracy Nolen
- RTI International, Durham, North Carolina, USA
| | | | - Waldemar A Carlo
- Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama, USA
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Nakagawa C, Kadlera Nagaraj M, Hernandez JC, Uthay Kumar DB, Shukla V, Machida R, Schüttrumpf J, Sher L, Farci P, Mishra L, Tahara SM, Ou JHJ, Machida K. β-CATENIN stabilizes HIF2 through lncRNA and inhibits intravenous immunoglobulin immunotherapy. Front Immunol 2023; 14:1204907. [PMID: 37744383 PMCID: PMC10516572 DOI: 10.3389/fimmu.2023.1204907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 08/03/2023] [Indexed: 09/26/2023] Open
Abstract
Introduction Tumor-initiating cells (TICs) are rare, stem-like, and highly malignant. Although intravenous hepatitis B and C immunoglobulins have been used for HBV and HCV neutralization in patients, their tumor-inhibitory effects have not yet been examined. Hepatitis B immunoglobulin (HBIG) therapy is employed to reduce hepatocellular carcinoma (HCC) recurrence in patients after living donor liver transplantations (LDLT). Hypothesis We hypothesized that patient-derived intravenous immunoglobulin (IVIG) binding to HCC associated TICs will reduce self-renewal and cell viability driven by β-CATENIN-downstream pathways. β-CATENIN activity protected TICs from IVIG effects. Methods The effects of HBIG and HCIG binding to TICs were evaluated for cell viability and self-renewal. Results Inhibition of β-CATENIN pathway(s) augmented TIC susceptibility to HBIG- and HCIG-immunotherapy. HBV X protein (HBx) upregulates both β-CATENIN and NANOG expression. The co-expression of constitutively active β-CATENIN with NANOG promotes self-renewal ability and tumor-initiating ability of hepatoblasts. HBIG bound to HBV+ cells led to growth inhibition in a TIC subset that expressed hepatitis B surface antigen. The HBx protein transformed cells through β-CATENIN-inducible lncRNAs EGLN3-AS1 and lnc-β-CatM. Co-expression of constitutively active β-CATENIN with NANOG promoted self-renewal ability of TICs through EGLN3 induction. β-CATENIN-induced lncRNAs stabilized HIF2 to maintain self-renewal of TICs. Targeting of EGLN3-AS1 resulted in destabilization of EZH2-dependent β-CATENIN activity and synergized cell-killing of TICs by HBIG or HCIG immunotherapy. Discussion Taken together, WNT and stemness pathways induced HIF2 of TICs via cooperating lncRNAs resulting in resistance to cancer immunotherapy. Therefore, therapeutic use of IVIG may suppress tumor recurrence through inhibition of TICs.
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Affiliation(s)
- Chad Nakagawa
- Department of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA, United States
| | - Manjunatha Kadlera Nagaraj
- Department of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA, United States
| | - Juan Carlos Hernandez
- Department of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA, United States
| | - Dinesh Babu Uthay Kumar
- Department of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA, United States
| | - Vivek Shukla
- University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Risa Machida
- Department of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA, United States
| | | | - Linda Sher
- Department of Surgery, University of Southern California, Los Angeles, CA, United States
| | - Patrizia Farci
- Hepatic Pathogenesis Section, Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Lopa Mishra
- University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Stanley M. Tahara
- Department of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA, United States
| | - Jing-Hsiung James Ou
- Department of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA, United States
| | - Keigo Machida
- Department of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA, United States
- Southern California Research Center for Alcoholic Liver Disease and Pancreatic Disease (ALPD) and Cirrhosis, Los Angeles, CA, United States
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Dalle Carbonare L, Basile A, Rindi L, Bulleri F, Hamedeh H, Iacopino S, Shukla V, Weits DA, Lombardi L, Sbrana A, Benedetti-Cecchi L, Giuntoli B, Licausi F, Maggi E. Dim artificial light at night alters gene expression rhythms and growth in a key seagrass species (Posidonia oceanica). Sci Rep 2023; 13:10620. [PMID: 37391536 PMCID: PMC10313690 DOI: 10.1038/s41598-023-37261-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 06/19/2023] [Indexed: 07/02/2023] Open
Abstract
Artificial light at night (ALAN) is a globally spreading anthropogenic stressor, affecting more than 20% of coastal habitats. The alteration of the natural light/darkness cycle is expected to impact the physiology of organisms by acting on the complex circuits termed as circadian rhythms. Our understanding of the impact of ALAN on marine organisms is lagging behind that of terrestrial ones, and effects on marine primary producers are almost unexplored. Here, we investigated the molecular and physiological response of the Mediterranean seagrass, Posidonia oceanica (L.) Delile, as model to evaluate the effect of ALAN on seagrass populations established in shallow waters, by taking advantage of a decreasing gradient of dim nocturnal light intensity (from < 0.01 to 4 lx) along the NW Mediterranean coastline. We first monitored the fluctuations of putative circadian-clock genes over a period of 24 h along the ALAN gradient. We then investigated whether key physiological processes, known to be synchronized with day length by the circadian rhythm, were also affected by ALAN. ALAN influenced the light signalling at dusk/night in P. oceanica, including that of shorter blue wavelengths, through the ELF3-LUX1-ZTL regulatory network, and suggested that the daily perturbation of internal clock orthologs in seagrass might have caused the recruitment of PoSEND33 and PoPSBS genes to mitigate the repercussions of a nocturnal stress on photosynthesis during the day. A long-lasting impairment of gene fluctuations in sites characterised by ALAN could explain the reduced growth of the seagrass leaves when these were transferred into controlled conditions and without lighting during the night. Our results highlight the potential contribution of ALAN to the global loss of seagrass meadows, posing questions about key interactions with a variety of other human-related stressors in urban areas, in order to develop more efficient strategies to globally preserve these coastal foundation species.
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Affiliation(s)
- L Dalle Carbonare
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Piazza Martiri Della Libertà, 56127, Pisa, Italy.
- Department of Biology, University of Oxford, Oxford, OX1 3RB, UK.
| | - A Basile
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Piazza Martiri Della Libertà, 56127, Pisa, Italy
| | - L Rindi
- Dipartimento di Biologia, Universita' di Pisa, CoNISMa, Via Luca Ghini 13, 56126, Pisa, Italy
| | - F Bulleri
- Dipartimento di Biologia, Universita' di Pisa, CoNISMa, Via Luca Ghini 13, 56126, Pisa, Italy
| | - H Hamedeh
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Piazza Martiri Della Libertà, 56127, Pisa, Italy
| | - S Iacopino
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Piazza Martiri Della Libertà, 56127, Pisa, Italy
| | - V Shukla
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Piazza Martiri Della Libertà, 56127, Pisa, Italy
| | - D A Weits
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Piazza Martiri Della Libertà, 56127, Pisa, Italy
| | - L Lombardi
- Dipartimento di Biologia, Universita' di Pisa, CoNISMa, Via Luca Ghini 13, 56126, Pisa, Italy
| | - A Sbrana
- Dipartimento di Biologia, Universita' di Pisa, CoNISMa, Via Luca Ghini 13, 56126, Pisa, Italy
| | - L Benedetti-Cecchi
- Dipartimento di Biologia, Universita' di Pisa, CoNISMa, Via Luca Ghini 13, 56126, Pisa, Italy
| | - B Giuntoli
- Institute of Life Sciences, Scuola Superiore Sant'Anna, Piazza Martiri Della Libertà, 56127, Pisa, Italy
- Dipartimento di Biologia, Universita' di Pisa, CoNISMa, Via Luca Ghini 13, 56126, Pisa, Italy
| | - F Licausi
- Department of Biology, University of Oxford, Oxford, OX1 3RB, UK
| | - E Maggi
- Dipartimento di Biologia, Universita' di Pisa, CoNISMa, Via Luca Ghini 13, 56126, Pisa, Italy.
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Travers C, Dolma K, Gentle SJ, Shukla V, Armstead KM, Ambalavanan N, Carlo WA. Mid or standard frequency ventilation in infants with respiratory distress syndrome (MIDOS): a randomized clinical trial. Am J Med Sci 2023. [DOI: 10.1016/s0002-9629(23)00469-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Razzaghy J, Salas A, Shukla V, Reeves A, Gunawan E, Nguyen K, Gunn M. Early initiation of high-volume, exclusive human milk-$$$based feeds: A randomized trial. Am J Med Sci 2023. [DOI: 10.1016/s0002-9629(23)00514-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Vu B, Seales C, Rahman A, Travers C, Willis KA, Lal CV, Crabb D, Ratliff A, Atkinson P, Waites K, Carlo WA, Ambalavanan N, Shukla V. Association of mycoplasma and ureaplasma respiratory colonization and bronchopulmonary dysplasia in extremely preterm infants- a propensity score matched case-control study. Am J Med Sci 2023. [DOI: 10.1016/s0002-9629(23)00472-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Shukla V, Battarbee AN, Melvin R, Godwin R, Tita AT, Carlo W, Subramaniam A. Prediction of neonatal hypoglycemia risk from maternal continuous glucose monitoring data using artificial intelligence. Am J Obstet Gynecol 2023. [DOI: 10.1016/j.ajog.2022.11.1265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Wang H, Wang R, Prothro KP, Xi S, Hou W, Wu X, Tolunay T, Shukla V, Zhang MR, Shiffka SJ, Gara S, Schrump DS. Abstract A013: Induced pluripotent stem cells derived from normal human esophageal epithelial cells identify transcription factor networks contributing to esophageal carcinogenesis. Cancer Res 2022. [DOI: 10.1158/1538-7445.cancepi22-a013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Abstract
Esophageal cancer (EsC) is the sixth leading cause of cancer-related mortality worldwide. Esophageal squamous cell cancers (ESCC) typically arise in the upper and mid-esophagus, whereas esophageal adenocarcinomas (EAC) arise in the distal esophagus and gastroesophageal junction. Presently, epigenetic mechanisms contributing to initiation, progression, and dissemination of EsC have not been fully elucidated. The present study was undertaken to determine if induced pluripotent stem cells (iPSCs) derived from normal esophageal epithelial cells (Eso-iPSCs), EsC cell lines cultured in stemness enriched conditions, and cancer stem-like cells isolated from primary EsC specimens could be used to identify unique primitive stem-like transcription factor networks associated with epigenetic plasticity, chemoresistance, and metastatic potential of EsC cells. RNA-seq analysis demonstrated that genes differentially expressed in Eso-iPSC overlapped with transcriptome signatures in lung-iPSC (Lu-iPSC) which we previously generated to identify novel therapeutic targets in lung cancers; similar to Lu-iPSC, Eso-iPSC transcriptome signatures overlapped considerably more with small cell lung cancers (SCLC) compared to non-small cell lung cancers (NSCLC), possibly reflecting greater stemness in SCLC. We next compared transcriptome signatures of Eso-iPSC with stem-like-EAC enrichment models (cell lines and PDX). 6% and 8% of differentially expressed genes in Eso-iPSC uniquely overlapped with EAC or ESCC lines, respectively, whereas 24% were common to Eso-iPSC, EAC cells, and ESCC cells. Culturing of EAC cells on matrigel or propagation of EAC as primary patient derived xenografts increased commonalities of Eso-iPSC and EAC transcriptome signatures. Lastly, we compared transcriptomes of Eso-iPSC with Barrett’s esophagus (BE; a premalignant condition in which the squamous epithelium of the distal esophagus is replaced by metaplastic columnar epithelial cells) and EAC samples. By combining and stringently filtering transcriptome, ATAC-seq, DNA methylome, and ChIP-seq datasets for tissue- and disease-specific signatures, we identified several potentially druggable, master TFs mediating stemness/plasticity, chemoresistance, and metastatic potential which are shared between EsC lines and primary tumor specimens. Enrichment techniques promoted acquisition of more stem-like states in cultured EAC cells as reflected in multi-omic signatures of these cells relative to Eso-iPSC and primary EAC specimens. Collectively, these findings establish proof of principal for our experimental approach which is now being used to further characterize epigenetic mechanisms contributing to esophageal carcinogenesis and to identify novel targets for EsC therapy.
Citation Format: Haitao Wang, Ruihong Wang, Katherine P. Prothro, Sichuan Xi, Weilong Hou, Xinwei Wu, Tuana Tolunay, Vivek Shukla, Mary R. Zhang, Stephanie J. Shiffka, Sudheer Gara, David S. Schrump. Induced pluripotent stem cells derived from normal human esophageal epithelial cells identify transcription factor networks contributing to esophageal carcinogenesis. [abstract]. In: Proceedings of the AACR Special Conference: Cancer Epigenomics; 2022 Oct 6-8; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2022;82(23 Suppl_2):Abstract nr A013.
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Affiliation(s)
- Haitao Wang
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Ruihong Wang
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Katherine P. Prothro
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Sichuan Xi
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Weilong Hou
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Xinwei Wu
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Tuana Tolunay
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Vivek Shukla
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Mary R. Zhang
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Stephanie J. Shiffka
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Sudheer Gara
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - David S. Schrump
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
- 1Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
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Durham L, Gunawan E, Nguyen K, Reeves A, Shukla V, Salas AA. Total Fluid Administration and Weight Loss during the First 2 Weeks in Infants Randomized to Early Enteral Feeding after Extremely Preterm Birth. Neonatology 2022; 120:257-262. [PMID: 36442467 PMCID: PMC10038856 DOI: 10.1159/000527430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 10/04/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Randomized trials have not reported the effects of the early progression of feeding volumes on fluid balance and neurodevelopment among infants born extremely preterm (≤28 weeks). METHOD Fluid, electrolyte, and neurodevelopment data of 60 extremely preterm infants randomly assigned to receive either 1 (early feeding group) or 4 days (late feeding group) of trophic feeding volumes at 20-24 mL/kg/day were analyzed. RESULTS Infants randomized to the early feeding group received less parenteral fluids, generated lower urine volumes, and had less excessive weight loss during the first 14 days after birth. The 7-point difference in cognitive scores and the 0.5 difference in weight-for-age z-scores favoring the early feeding group did not reach statistical significance. CONCLUSIONS In extremely preterm infants, early enteral feeding is associated with less total fluid administration and with less excessive weight loss during the first 2 weeks after birth. These short-term effects could have long-lasting benefits.
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Affiliation(s)
- Leandra Durham
- Department of Pediatrics/School of Medicine/University of Alabama at Birmingham/Birmingham, (AL,) USA
| | - Emily Gunawan
- Department of Pediatrics/School of Medicine/University of Alabama at Birmingham/Birmingham, (AL,) USA
| | - Kelly Nguyen
- Department of Pediatrics/School of Medicine/University of Alabama at Birmingham/Birmingham, (AL,) USA
| | - Audrey Reeves
- Department of Pediatrics/School of Medicine/University of Alabama at Birmingham/Birmingham, (AL,) USA
| | - Vivek Shukla
- Department of Pediatrics/School of Medicine/University of Alabama at Birmingham/Birmingham, (AL,) USA
| | - Ariel A. Salas
- Department of Pediatrics/School of Medicine/University of Alabama at Birmingham/Birmingham, (AL,) USA
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12
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Xiong Y, Xi S, Gara SK, Shan J, Gao J, Zhang M, Shukla V, Wang R, Hoang CD, Chen H, Schrump DS. Hookah Smoke Mediates Cancer-Associated Epigenomic and Transcriptomic Signatures in Human Respiratory Epithelial Cells. JTO Clin Res Rep 2021; 2:100181. [PMID: 34790904 PMCID: PMC8479631 DOI: 10.1016/j.jtocrr.2021.100181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 04/14/2021] [Accepted: 04/23/2021] [Indexed: 11/29/2022] Open
Abstract
Introduction Although communal smoking of hookah by means of water pipes is perceived to be a safe alternative to cigarette smoking, the effects of hookah smoke in respiratory epithelia have not been well characterized. This study evaluated epigenomic and transcriptomic effects of hookah smoke relative to cigarette smoke in human respiratory epithelial cells. Methods Primary normal human small airway epithelial cells from three donors and cdk4 and hTERT-immortalized small airway epithelial cells and human bronchial epithelial cells were cultured for 5 days in normal media with or without cigarette smoke condensates (CSCs) or water pipe condensates (WPCs). Cell count, immunoblot, RNA sequencing, quantitative real-time reverse-transcriptase polymerase chain reaction, methylation-specific polymerase chain reaction, and quantitative chromatin immunoprecipitation techniques were used to compare effects of hookah and cigarette smoke on cell proliferation, global histone marks, gene expression, and promoter-related chromatin structure. Results CSC and WPC decreased global H4K16ac and H4K20me3 histone marks and mediated distinct and overlapping cancer-associated transcriptome signatures and pathway modulations that were cell line dependent and stratified across lung cancer cells in a histology-specific manner. Epiregulin encoding a master regulator of EGFR signaling that is overexpressed in lung cancers was up-regulated, whereas FILIP1L and ABI3BP encoding mediators of senescence that are repressed in lung cancers were down-regulated by CSC and WPC. Induction of epiregulin and repression of FILIP1L and ABI3BP by these condensates coincided with unique epigenetic alterations within the respective promoters. Conclusions These findings support translational studies to ascertain if hookah-mediated epigenomic and transcriptomic alterations in cultured respiratory epithelia are detectable and clinically relevant in hookah smokers.
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Affiliation(s)
- Yin Xiong
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Sichuan Xi
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Sudheer Kumar Gara
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Jigui Shan
- The Biomedical Informatics and Data Science, Frederick National Laboratory for Cancer Research, Frederick, Maryland
| | - James Gao
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Mary Zhang
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Vivek Shukla
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Ruihong Wang
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Chuong D Hoang
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Haobin Chen
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - David S Schrump
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
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13
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Reardon ES, Shukla V, Xi S, Gara SK, Liu Y, Straughan D, Zhang M, Hong JA, Payabyab EC, Kumari A, Richards WG, De Rienzo A, Hassan R, Miettinen M, Xi L, Raffeld M, Uechi LT, Li X, Wang R, Chen H, Hoang CD, Bueno R, Schrump DS. UHRF1 Is a Novel Druggable Epigenetic Target in Malignant Pleural Mesothelioma. J Thorac Oncol 2021; 16:89-103. [PMID: 32927122 PMCID: PMC7775915 DOI: 10.1016/j.jtho.2020.08.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 08/21/2020] [Accepted: 08/31/2020] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Ubiquitin-like with plant homeodomain and ring finger domains 1 (UHRF1) encodes a master regulator of DNA methylation that has emerged as an epigenetic driver in human cancers. To date, no studies have evaluated UHRF1 expression in malignant pleural mesothelioma (MPM). This study was undertaken to explore the therapeutic potential of targeting UHRF1 in MPM. METHODS Microarray, real-time quantitative reverse transcription-polymerase chain reaction, immunoblot, and immunohistochemistry techniques were used to evaluate UHRF1 expression in normal mesothelial cells (NMCs) cultured with or without asbestos, MPM lines, normal pleura, and primary MPM specimens. The impact of UHRF1 expression on MPM patient survival was evaluated using two independent databases. RNA-sequencing, proliferation, invasion, and colony formation assays, and murine xenograft experiments were performed to evaluate gene expression and growth of MPM cells after biochemical or pharmacologic inhibition of UHRF1 expression. RESULTS UHRF1 expression was significantly higher in MPM lines and specimens relative to NMC and normal pleura. Asbestos induced UHRF1 expression in NMC. The overexpression of UHRF1 was associated with decreased overall survival in patients with MPM. UHRF1 knockdown reversed genomewide DNA hypomethylation, and inhibited proliferation, invasion, and clonogenicity of MPM cells, and growth of MPM xenografts. These effects were phenocopied by the repurposed chemotherapeutic agent, mithramycin. Biochemical or pharmacologic up-regulation of p53 significantly reduced UHRF1 expression in MPM cells. RNA-sequencing experiments exhibited the pleiotropic effects of UHRF1 down-regulation and identified novel, clinically relevant biomarkers of UHRF1 expression in MPM. CONCLUSIONS UHRF1 is an epigenetic driver in MPM. These findings support the efforts to target UHRF1 expression or activity for mesothelioma therapy.
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Affiliation(s)
- Emily S Reardon
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Vivek Shukla
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Sichuan Xi
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Sudheer K Gara
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Yi Liu
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - David Straughan
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Mary Zhang
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Julie A Hong
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Eden C Payabyab
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Anju Kumari
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - William G Richards
- Division of Thoracic Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - Assunta De Rienzo
- Division of Thoracic Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - Raffit Hassan
- Thoracic and Gastrointestinal Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Markku Miettinen
- Laboratory of Pathology; National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Liqiang Xi
- Laboratory of Pathology; National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Mark Raffeld
- Laboratory of Pathology; National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Lisa T Uechi
- Microarray Core Facility, University of California, Los Angeles School of Medicine, Los Angeles, California
| | - Xinmin Li
- Microarray Core Facility, University of California, Los Angeles School of Medicine, Los Angeles, California
| | - Ruihong Wang
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Haobin Chen
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Chuong D Hoang
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Raphael Bueno
- Division of Thoracic Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - David S Schrump
- Thoracic Epigenetics Section, Thoracic Surgery Branch, Center for Cancer Research National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
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14
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Shukla V, Mendiratta SK, Zende RJ, Agrawal RK, Kumar Jaiswal R. Effects of chitosan coating enriched with
Syzygium aromaticum
essential oil on quality and shelf‐life of chicken patties. J FOOD PROCESS PRES 2020. [DOI: 10.1111/jfpp.14870] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Vivek Shukla
- Department of Livestock Products Technology Mumbai Veterinary College Mumbai India
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15
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Abstract
We describe the development and delivery of neonatal care including trends and impacts of major interventions on neonatal mortality particularly in low-resource settings. Low- and middle-income countries continue to be major contributors to neonatal mortality. Although there has been progress in reducing neonatal mortality, neonatal deaths are contributing an increasing percentage of childhood mortality. Several interventions targeting neonatal care such as neonatal resuscitation and essential newborn care have contributed to improved outcomes. However, there are still many neonatal deaths that are preventable with known effective interventions. This review addresses interventions proven effective in reducing neonatal mortality, challenges to implement them, and future directions of implementing these interventions in low- and middle-income countries.
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Affiliation(s)
- Vivek Shukla
- University of Alabama at Birmingham, Division of Neonatology, Suite 9380 WIC, 1700 6th Avenue South, Birmingham, AL, 35249, USA
| | - Musaku Mwenechanya
- University Teaching Hospital- Children's Hospital, Nationalist Road, Lusaka, Zambia
| | - Waldemar A Carlo
- University of Alabama at Birmingham, Division of Neonatology, Suite 9380 WIC, 1700 6th Avenue South, Birmingham, AL, 35249, USA.
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16
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Shukla V, Tyrlik T, Brandman S, Peterson-Incorvaia M, Kalkbrenner K, Denogean J, Prichard P. OA02.07 Low Dose CT Lung Screening in First Responders. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.09.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Shukla V, Brandman S, Petersen-Incorvaia M, Kalkbrenner K, Denogean J, Prichard P. EP1.11-04 Low Dose Lung CT Screening in First Responders in the Phoenix Metro Area: A Feasability Study. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Shukla V, Bhatnagar A, Singh S, Soni PK, Verma SK, Yadav TP, Shaz MA, Srivastava ON. A dual borohydride (Li and Na borohydride) catalyst/additive together with intermetallic FeTi for the optimization of the hydrogen sorption characteristics of Mg(NH 2) 2/2LiH. Dalton Trans 2019; 48:11391-11403. [PMID: 31282909 DOI: 10.1039/c9dt02270h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present study deals with the material tailoring of Mg(NH2)2-2LiH through dual borohydrides: the reactive LiBH4 and the non-reactive NaBH4. Furthermore, a pulverizer, as well as a catalyst FeTi, has been added in order to facilitate hydrogen sorption. Addition of LiBH4 to LiNH2 in a 1 : 3 molar ratio leads to the formation of Li4(BH4)(NH2)3 which also acts as a catalyst. However, the addition of NaBH4 doesn't lead to any compound formation but shows a catalytic effect. The onset dehydrogenation temperature of thermally treated Mg(NH2)2-2LiH/(Li4(BH4)(NH2)3-NaBH4) is 142 °C as against 196 °C for the basic material Mg(NH2)2-2LiH. However, with the FeTi catalyzed Mg(NH2)2-2LiH/(Li4(BH4)(NH2)3-NaBH4, it has been reduced to 120 °C. This is better than other similar amide/hydride composites where it is 149 °C (when the basic material is catalyzed with LiBH4). The FeTi catalyzed Mg(NH2)2-2LiH/(Li4(BH4)(NH2)3-NaBH4 sample shows better de/re-hydrogenation kinetics as it desorbs 3.9 ± 0.04 wt% and absorbs nearly 4.1 ± 0.04 wt% both within 30 min at 170 °C (with the H2 pressure being 0.1 MPa for desorption and 7 MPa for absorption). The eventual hydrogen storage capacity of Mg(NH2)2-2LiH/(Li4(BH4)(NH2)3-NaBH4 together with FeTi has been found to be ∼5.0 wt%. To make the effect of catalysts intelligible, we have put forward in a schematic way the role of Li and Na borohydrides with FeTi for improving the hydrogen sorption properties of Mg(NH2)2-2LiH.
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Affiliation(s)
- Vivek Shukla
- Hydrogen Energy Centre, Department of Physics, Banaras Hindu University, Varanasi-221005, India.
| | - Ashish Bhatnagar
- Hydrogen Energy Centre, Department of Physics, Banaras Hindu University, Varanasi-221005, India.
| | - Sweta Singh
- Hydrogen Energy Centre, Department of Physics, Banaras Hindu University, Varanasi-221005, India. and Department of Physics, School of Physical and Material Sciences, Mahatma Gandhi Central University, Bihar 845401, India
| | - Pawan K Soni
- Hydrogen Energy Centre, Department of Physics, Banaras Hindu University, Varanasi-221005, India.
| | - Satish K Verma
- Hydrogen Energy Centre, Department of Physics, Banaras Hindu University, Varanasi-221005, India.
| | - T P Yadav
- Hydrogen Energy Centre, Department of Physics, Banaras Hindu University, Varanasi-221005, India.
| | - M A Shaz
- Hydrogen Energy Centre, Department of Physics, Banaras Hindu University, Varanasi-221005, India.
| | - O N Srivastava
- Hydrogen Energy Centre, Department of Physics, Banaras Hindu University, Varanasi-221005, India.
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19
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Bian Y, Teper Y, Mathews Griner LA, Aiken TJ, Shukla V, Guha R, Shinn P, Xin HW, Pflicke H, Powers AS, Li D, Jiang JK, Patel P, Rogers SA, Aubé J, Ferrer M, Thomas CJ, Rudloff U. Target Deconvolution of a Multikinase Inhibitor with Antimetastatic Properties Identifies TAOK3 as a Key Contributor to a Cancer Stem Cell-Like Phenotype. Mol Cancer Ther 2019; 18:2097-2110. [PMID: 31395684 DOI: 10.1158/1535-7163.mct-18-1011] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 03/11/2019] [Accepted: 07/29/2019] [Indexed: 12/12/2022]
Abstract
Pancreatic cancer remains an incurable condition. Its progression is driven, in part, by subsets of cancer cells that evade the cytotoxic effects of conventional chemotherapies. These cells are often low-cycling, multidrug resistant, and adopt a stem cell-like phenotype consistent with the concept of cancer stem cells (CSC). To identify drugs impacting on tumor-promoting CSCs, we performed a differential high-throughput drug screen in pancreatic cancer cells cultured in traditional (2D) monolayers versus three-dimensional (3D) spheroids which replicate key elements of the CSC model. Among the agents capable of killing cells cultured in both formats was a 1H-benzo[d]imidazol-2-amine-based inhibitor of IL2-inducible T-cell kinase (ITK; NCGC00188382, inhibitor #1) that effectively mediated growth inhibition and induction of apoptosis in vitro, and suppressed cancer progression and metastasis formation in vivo An examination of this agent's polypharmacology via in vitro and in situ phosphoproteomic profiling demonstrated an activity profile enriched for mediators involved in DNA damage repair. Included was a strong inhibitory potential versus the thousand-and-one amino acid kinase 3 (TAOK3), CDK7, and aurora B kinases. We found that cells grown under CSC-enriching spheroid conditions are selectively dependent on TAOK3 signaling. Loss of TAOK3 decreases colony formation, expression of stem cell markers, and sensitizes spheroids to the genotoxic effect of gemcitabine, whereas overexpression of TAOK3 increases stem cell traits including tumor initiation and metastasis formation. By inactivating multiple components of the cell-cycle machinery in concert with the downregulation of key CSC signatures, inhibitor #1 defines a distinctive strategy for targeting pancreatic cancer cell populations.
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Affiliation(s)
- Yansong Bian
- Rare Tumor Initiative, Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Yaroslav Teper
- Thoracic and GI Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Lesley A Mathews Griner
- Division of Pre-Clinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland
| | - Taylor J Aiken
- Thoracic and GI Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland.,Department of Surgery, University of Wisconsin, Madison, Wisconsin
| | - Vivek Shukla
- Thoracic and GI Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Rajarshi Guha
- Division of Pre-Clinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland
| | - Paul Shinn
- Division of Pre-Clinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland
| | - Hong-Wu Xin
- Thoracic and GI Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Holger Pflicke
- Thoracic and GI Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Astin S Powers
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Dandan Li
- Rare Tumor Initiative, Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Jian-Kang Jiang
- Division of Pre-Clinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland
| | - Paresma Patel
- Division of Pre-Clinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland
| | - Steven A Rogers
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, Chapel Hill, North Carolina
| | - Jeffrey Aubé
- Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, Chapel Hill, North Carolina
| | - Marc Ferrer
- Division of Pre-Clinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland
| | - Craig J Thomas
- Division of Pre-Clinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland.
| | - Udo Rudloff
- Rare Tumor Initiative, Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland.
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20
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Shukla V, Carlo WA. Technology-driven Neonatal Health Care in Low-resource Settings: Expectations and Reality. EClinicalMedicine 2019; 12:2-3. [PMID: 31388655 PMCID: PMC6677652 DOI: 10.1016/j.eclinm.2019.06.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 06/11/2019] [Indexed: 11/28/2022] Open
Affiliation(s)
| | - Waldemar A. Carlo
- Corresponding author at: University of Alabama at Birmingham Division of Neonatology, Suite 9380 WIC, 1700 6th Avenue South, Birmingham, AL 35249, United States of America.
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21
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Umrao S, Maurya A, Shukla V, Grigoriev A, Ahuja R, Vinayak M, Srivastava R, Saxena P, Oh IK, Srivastava A. Anticarcinogenic activity of blue fluorescent hexagonal boron nitride quantum dots: as an effective enhancer for DNA cleavage activity of anticancer drug doxorubicin. Mater Today Bio 2019; 1:100001. [PMID: 32159136 PMCID: PMC7061680 DOI: 10.1016/j.mtbio.2019.01.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 12/19/2018] [Accepted: 01/28/2019] [Indexed: 12/13/2022] Open
Abstract
Blue fluorescent hexagonal boron nitride quantum dots (h-BNQDs) of ∼10 nm size as an effective enhancer for DNA cleavage activity of anticancer drug doxorubicin (DOX) were synthesized using simple one-step hydrothermal disintegration of exfoliated hexagonal boron nitride at very low temperature ∼ 120 °C. Boron nitride quantum dots (BNQDs) at a concentration of 25 μg/ml enhanced DNA cleavage activity of DOX up to 70% as checked by converting supercoiled fragment into nicked circular PBR322 DNA. The interaction of BNQDs with DOX is proportional to the concentration of BNQDs, with binding constant K b ∼0.07338 μg/ml. In addition, ab initio theoretical results indicate that DOX is absorbed on BNQDs at the N-terminated edge with binding energy -1.075 eV and prevented the normal replication mechanisms in DNA. BNQDs have been shown to kill the breast cancer cell MCF-7 extensively as compared with the normal human keratinocyte cell HaCaT. The cytotoxicity of BNQDs may be correlated with reduced reactive oxygen species level and increased apoptosis in MCF-7 cells, which may be liable to enhance the anticancerous activity of DOX. The results provide a base to develop BNQD-DOX as a more effective anticancer drug.
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Affiliation(s)
- S. Umrao
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
- Creative Research Initiative Center for Functionally Antagonistic Nano-Engineering, Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - A.K. Maurya
- Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - V. Shukla
- Condensed Matter Theory Group, Department of Physics and Astronomy, Uppsala University, Box 516, 75120, Uppsala, Sweden
| | - A. Grigoriev
- Condensed Matter Theory Group, Department of Physics and Astronomy, Uppsala University, Box 516, 75120, Uppsala, Sweden
| | - R. Ahuja
- Condensed Matter Theory Group, Department of Physics and Astronomy, Uppsala University, Box 516, 75120, Uppsala, Sweden
| | - M. Vinayak
- Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - R.R. Srivastava
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - P.S. Saxena
- Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - I.-K. Oh
- Creative Research Initiative Center for Functionally Antagonistic Nano-Engineering, Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - A. Srivastava
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
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22
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Shukla V, Chapla A, Uperiya J, Nimbalkar A, Phatak A, Nimbalkar S. Sucrose vs. skin to skin care for preterm neonatal pain control-a randomized control trial. J Perinatol 2018; 38:1365-1369. [PMID: 30087456 DOI: 10.1038/s41372-018-0193-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 05/26/2018] [Accepted: 06/19/2018] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To compare the efficacy of SSC with oral Sucrose for pain management in preterm neonates. METHODOLOGY Parallel-group, assessor-blinded randomized control trial conducted from February-June 2017 at a level 3B-NICU. Hundred preterm neonates (29-0/7 to 36-6/7 weeks gestational age) requiring heel-stick were randomly assigned (1:1), to SSC (50, Group-A) and Sucrose (50, Group-B). In Group-A, SSC was provided at least 10 min before the procedure. In Group-B, 0.2 ml of oral Sucrose was provided 2 min before the procedure. Blinded assessment of Premature Infant Pain Profile (PIPP) score was done 30 s post-procedure using recorded videos. RESULTS Baseline variables were [Mean(SD)] gestational age [32.79(2.34) weeks], age [14.04(11.10) days] and birth weight [1.62(0.35) kilograms]. PIPP score was less in group- A vs. B but could not achieve statistical significance [Mean(SD): 7.74(2.43) vs. 8.1(2.82), p = 0.50 CI of the difference: (-1.40,0.68)]. CONCLUSIONS SSC and Sucrose have comparable efficacy in managing pain in premature neonates.
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Affiliation(s)
- Vivek Shukla
- SUNY, Downstate Medical Center, Brooklyn, NY, USA.
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Shukla V, Mcloughlin K, Gao J, Wang Y, Hong J, Zhang M, Gesumaria L, Chen H, Schrump D. P3.03-05 Comparative Transcriptomic Analysis of Lung-iPSC, NSCLC, and SCLC: Potential Implications for iPSC Modeling of Lung Cancer. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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McLoughlin KC, Brown ZJ, Shukla Y, Shukla V. Promise and pitfalls of immune checkpoint inhibitors in hepato-pancreato-biliary malignancies. Discov Med 2018; 26:85-92. [PMID: 30399326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A growing understanding of the immune system and its anti-tumor functions has been imperative for the comprehension of malignant processes and beneficial in the pursuit of effective cancer treatments. To defend the body, immune cells must be able to differentiate between self and foreign cells using checkpoints, allowing the immune cells to attack foreign cells. Among the different types of immune target therapies recently developed, checkpoint inhibitors have come to the forefront in cancer treatment, encouraging their study in numerous different types of cancer, including hepato-pancreato-biliary malignancies (HPB). Traditionally, these malignancies have been treated with standard cytotoxic chemotherapy, but with little benefit in the metastatic setting. However, impressive results with checkpoint inhibitor therapy have been noted in a number of cancers as these agents enable immune cells to kill cancer cells more efficiently. Two classes of checkpoint inhibitors being extensively studied are inhibitors of cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) ligand and programmed cell death protein 1 and its ligand (PD-1 and PD-L1). Checkpoint inhibitors have an advantage over other types of immunotherapies, such as cell-based therapies, in that they are commercially available and can be given to patients with a range of pathologies and regardless of HLA status. Herein, we will discuss the application of immune checkpoint inhibitors to HPB malignancies as well as the limitations of these medications in these cancers.
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Affiliation(s)
- Kaitlin C McLoughlin
- TOSB, National Cancer Institute, National Institutes of Health, Bethesda, MD 20814, USA
- Department of Surgery, School of Medicine, University of Colorado, Denver, CO 80045, USA
| | - Zachary J Brown
- TGIB, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
- Department of Surgery, Rutgers Robert Wood Johnson Medical School, NJ 08901, USA
| | | | - Vivek Shukla
- TOSB, National Cancer Institute, National Institutes of Health, Bethesda, MD 20814, USA
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Feingold PL, Surman DR, Brown K, Xu Y, McDuffie LA, Shukla V, Reardon ES, Crooks DR, Trepel JB, Lee S, Lee MJ, Gao S, Xi S, McLoughlin KC, Diggs LP, Beer DG, Nancarrow DJ, Neckers LM, Davis JL, Hoang CD, Hernandez JM, Schrump DS, Ripley RT. Induction of Thioredoxin-Interacting Protein by a Histone Deacetylase Inhibitor, Entinostat, Is Associated with DNA Damage and Apoptosis in Esophageal Adenocarcinoma. Mol Cancer Ther 2018; 17:2013-2023. [PMID: 29934340 DOI: 10.1158/1535-7163.mct-17-1240] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 04/27/2018] [Accepted: 06/15/2018] [Indexed: 01/07/2023]
Abstract
In 2017, an estimated 17,000 individuals were diagnosed with esophageal adenocarcinoma (EAC), and less than 20% will survive 5 years. Positron emission tomography avidity is indicative of high glucose utilization and is nearly universal in EAC. TXNIP blocks glucose uptake and exhibits proapoptotic functions. Higher expression in EAC has been associated with improved disease-specific survival, lack of lymph node involvement, reduced perineural invasion, and increased tumor differentiation. We hypothesized that TXNIP may act as a tumor suppressor that sensitizes EAC cells to standard chemotherapeutics. EAC cell lines and a Barrett epithelial cell line were used. qRT-PCR, immunoblot, and immunofluorescence techniques evaluated gene expression. TXNIP was stably overexpressed or knocked down using lentiviral RNA transduction techniques. Murine xenograft methods examined growth following overexpression of TXNIP. Apoptosis and DNA damage were measured by annexin V and γH2AX assays. Activation of the intrinsic apoptosis was quantitated with green fluorescence protein-caspase 3 reporter assay. In cultured cells and an esophageal tissue array, TXNIP expression was higher in Barrett epithelia and normal tissue compared with EAC. Constitutive overexpression of TXNIP decreased proliferation, clonogenicity, and tumor xenograft growth. TXNIP overexpression increased, whereas knockdown abrogated, DNA damage and apoptosis following cisplatin treatment. An HDAC inhibitor, entinostat (currently in clinical trials), upregulated TXNIP and synergistically increased cisplatin-mediated DNA damage and apoptosis. TXNIP is a tumor suppressor that is downregulated in EACC. Its reexpression dramatically sensitizes these cells to cisplatin. Our findings support phase I/II evaluation of "priming" strategies to enhance the efficacy of conventional chemotherapeutics in EAC. Mol Cancer Ther; 17(9); 2013-23. ©2018 AACR.
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Affiliation(s)
- Paul L Feingold
- Thoracic and Oncologic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Deborah R Surman
- Thoracic and Oncologic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Kate Brown
- Thoracic and Oncologic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Yuan Xu
- Thoracic and Oncologic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Lucas A McDuffie
- Thoracic and Oncologic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Vivek Shukla
- Thoracic and Oncologic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Emily S Reardon
- Thoracic and Oncologic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Daniel R Crooks
- Urologic Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Jane B Trepel
- Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Sunmin Lee
- Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Min-Jung Lee
- Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Shaojian Gao
- Thoracic and Oncologic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Sichuan Xi
- Thoracic and Oncologic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Kaitlin C McLoughlin
- Thoracic and Oncologic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Laurence P Diggs
- Thoracic and Oncologic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - David G Beer
- Section of Thoracic Surgery, Department of Surgery, University of Michigan Medical School, Ann Arbor, Michigan
| | - Derek J Nancarrow
- Section of Thoracic Surgery, Department of Surgery, University of Michigan Medical School, Ann Arbor, Michigan
| | - Leonard M Neckers
- Urologic Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Jeremy L Davis
- Thoracic and Oncologic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Chuong D Hoang
- Thoracic and Oncologic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Jonathan M Hernandez
- Thoracic and Oncologic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - David S Schrump
- Thoracic and Oncologic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - R Taylor Ripley
- Thoracic and Oncologic Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland.
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Debue P, Shukla V, Kuzzay D, Faranda D, Saw EW, Daviaud F, Dubrulle B. Dissipation, intermittency, and singularities in incompressible turbulent flows. Phys Rev E 2018; 97:053101. [PMID: 29906866 DOI: 10.1103/physreve.97.053101] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Indexed: 11/07/2022]
Abstract
We examine the connection between the singularities or quasisingularities in the solutions of the incompressible Navier-Stokes equation (INSE) and the local energy transfer and dissipation, in order to explore in detail how the former contributes to the phenomenon of intermittency. We do so by analyzing the velocity fields (a) measured in the experiments on the turbulent von Kármán swirling flow at high Reynolds numbers and (b) obtained from the direct numerical simulations of the INSE at a moderate resolution. To compute the local interscale energy transfer and viscous dissipation in experimental and supporting numerical data, we use the weak solution formulation generalization of the Kármán-Howarth-Monin equation. In the presence of a singularity in the velocity field, this formulation yields a nonzero dissipation (inertial dissipation) in the limit of an infinite resolution. Moreover, at finite resolutions, it provides an expression for local interscale energy transfers down to the scale where the energy is dissipated by viscosity. In the presence of a quasisingularity that is regularized by viscosity, the formulation provides the contribution to the viscous dissipation due to the presence of the quasisingularity. Therefore, our formulation provides a concrete support to the general multifractal description of the intermittency. We present the maps and statistics of the interscale energy transfer and show that the extreme events of this transfer govern the intermittency corrections and are compatible with a refined similarity hypothesis based on this transfer. We characterize the probability distribution functions of these extreme events via generalized Pareto distribution analysis and find that the widths of the tails are compatible with a similarity of the second kind. Finally, we make a connection between the topological and the statistical properties of the extreme events of the interscale energy transfer field and its multifractal properties.
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Affiliation(s)
- P Debue
- DSM/IRAMIS/SPEC, CNRS UMR 3680, CEA, Université Paris-Saclay, 91190 Gif sur Yvette, France
| | - V Shukla
- DSM/IRAMIS/SPEC, CNRS UMR 3680, CEA, Université Paris-Saclay, 91190 Gif sur Yvette, France
| | - D Kuzzay
- DSM/IRAMIS/SPEC, CNRS UMR 3680, CEA, Université Paris-Saclay, 91190 Gif sur Yvette, France.,LESIA, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, Univ. Paris Diderot, Sorbonne Paris Cité, 5 place Jules Janssen, 92195 Meudon, France
| | - D Faranda
- DSM/LSCE, CNRS UMR 8212, CEA, Université Paris-Saclay, 91190 Gif sur Yvette, France.,London Mathematical Laboratory, 14 Buckingham Street, London WC2N 6DF, United Kingdom
| | - E-W Saw
- DSM/IRAMIS/SPEC, CNRS UMR 3680, CEA, Université Paris-Saclay, 91190 Gif sur Yvette, France
| | - F Daviaud
- DSM/IRAMIS/SPEC, CNRS UMR 3680, CEA, Université Paris-Saclay, 91190 Gif sur Yvette, France
| | - B Dubrulle
- DSM/IRAMIS/SPEC, CNRS UMR 3680, CEA, Université Paris-Saclay, 91190 Gif sur Yvette, France
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George B, Teoh S, Shukla V, Petillion S, Verhoeven K, Weltens C, Van den Heuvel F. EP-1917: Comparison of Robustness Metrics in Intensity Modulated Proton Therapy. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)32226-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Bryant JL, Guda PR, Ray S, Asemu G, Sagi AR, Mubariz F, Arvas MI, Khalid OS, Shukla V, Nimmagadda VKC, Makar TK. Renal aquaporin-4 associated pathology in TG-26 mice. Exp Mol Pathol 2018; 104:239-249. [PMID: 29608911 DOI: 10.1016/j.yexmp.2018.03.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 03/29/2018] [Indexed: 12/15/2022]
Abstract
Human immunodeficiency virus-associated nephropathy (HIVAN) is a leading cause of end-stage renal disease in HIV patients, which is characterized by glomerulosclerosis and renal tubular dysfunction. Aquaporin-4 (AQP-4) is a membrane bound water channel protein that plays a distinct role in water reabsorption from renal tubular fluid. It has been proven that failure of AQP-4 insertion into the renal tubular membrane leads to renal dysfunction. However, the role of AQP-4 in HIVAN is unclear. We hypothesize that impaired water reabsorption leads to renal injury in HIVAN, where AQP-4 plays a crucial role. Renal function is assessed by urinary protein and serum blood urea nitrogen (BUN). Kidneys from HIV Transgenic (TG26) mice (HIVAN animal model) were compared to wild type mice by immunostaining, immunoblotting and quantitative RT-PCR. TG26 mice had increased proteinuria and BUN. We found decreased AQP-4 levels in the renal medulla, increased endothelin-1, endothelin receptor A and reduced Sirtuin1 (SIRT-1) levels in TG26 mice. Also, oxidative and endoplasmic reticulum stress was enhanced in kidneys of TG26 mice. We provide the first evidence that AQP-4 is inhibited due to induction of HIV associated stress in the kidneys of TG26 mice which limits water reabsorption in the kidney which may be one of the cause associated with HIVAN, impairing kidney physiology. AQP-4 dysregulation in TG26 mice suggests that similar changes may occur in HIVAN patients. This work may identify new therapeutic targets to be evaluated in HIVAN.
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Affiliation(s)
- Joseph L Bryant
- Institute of Human Virology, University of Maryland, Baltimore, MD, United States
| | | | - Sugata Ray
- Department of Neurology, University of Maryland, Baltimore, MD, United States
| | - Girma Asemu
- Institute of Human Virology, University of Maryland, Baltimore, MD, United States
| | - Avinash R Sagi
- Department of Neurology, University of Maryland, Baltimore, MD, United States
| | - Fahad Mubariz
- Department of Neurology, University of Maryland, Baltimore, MD, United States
| | - Muhammed I Arvas
- Department of Neurology, University of Maryland, Baltimore, MD, United States
| | - Omar S Khalid
- Department of Neurology, University of Maryland, Baltimore, MD, United States
| | - Vivek Shukla
- Department of Neurology, University of Maryland, Baltimore, MD, United States
| | - Vamshi K C Nimmagadda
- Department of Neurology, University of Maryland, Baltimore, MD, United States; VA Medical Center, Baltimore, MD, United States
| | - Tapas K Makar
- Department of Neurology, University of Maryland, Baltimore, MD, United States; VA Medical Center, Baltimore, MD, United States.
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29
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Bryant JL, Guda PR, Asemu G, Subedi R, Ray S, Khalid OS, Shukla V, Patel D, Davis H, Nimmagadda VKC, Makar TK. Glomerular mitochondrial changes in HIV associated renal injury. Exp Mol Pathol 2018; 104:175-189. [PMID: 29608912 DOI: 10.1016/j.yexmp.2018.03.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 03/29/2018] [Indexed: 12/20/2022]
Abstract
HIV-associated nephropathy (HIVAN) is an AIDs-related disease of the kidney. HIVAN is characterized by severe proteinuria, podocyte hyperplasia, collapse, glomerular, and tubulointerstitial damage. HIV-1 transgenic (Tg26) mouse is the most popular model to study the HIV manifestations that develop similar renal presentations as HIVAN. Viral proteins, including Tat, Nef, and Vpr play a significant role in renal cell damage. It has been shown that mitochondrial changes are involved in several kidney diseases, and therefore, mitochondrial dysfunction may be implicated in the pathology of HIVAN. In the present study, we investigated the changes of mitochondrial homeostasis, biogenesis, dynamics, mitophagy, and examined the role of reactive oxygen species (ROS) generation and apoptosis in the Tg26 mouse model. The Tg26 mice showed significant impairment of kidney function, which was accompanied by increased blood urea nitrogen (BUN), creatinine and protein urea level. In addition, histological, western blot and PCR analysis of the Tg26 mice kidneys showed a downregulation of NAMPT, SIRT1, and SIRT3 expressions levels. Furthermore, the kidney of the Tg26 mice showed a downregulation of PGC1α, MFN2, and PARKIN, which are coupled with decrease of mitochondrial biogenesis, imbalance of mitochondrial dynamics, and downregulation of mitophagy, respectively. Furthermore, our results indicate that mitochondrial dysfunction were associated with ER stress, ROS generation and apoptosis. These results strongly suggest that the impaired mitochondrial morphology, homeostasis, and function associated with HIVAN. These findings indicated that a new insight on pathological mechanism associated with mitochondrial changes in HIVAN and a potential therapeutic target.
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Affiliation(s)
- Joseph L Bryant
- Institute of Human Virology, University of Maryland, Baltimore, MD, United States
| | | | - Girma Asemu
- Institute of Human Virology, University of Maryland, Baltimore, MD, United States
| | - Rogin Subedi
- Department of Neurology, University of Maryland, Baltimore, MD, United States
| | - Sugata Ray
- Department of Neurology, University of Maryland, Baltimore, MD, United States
| | - Omar S Khalid
- Department of Neurology, University of Maryland, Baltimore, MD, United States
| | - Vivek Shukla
- Department of Neurology, University of Maryland, Baltimore, MD, United States
| | - Dhruvil Patel
- Department of Neurology, University of Maryland, Baltimore, MD, United States
| | - Harry Davis
- Institute of Human Virology, University of Maryland, Baltimore, MD, United States
| | | | - Tapas K Makar
- Department of Neurology, University of Maryland, Baltimore, MD, United States.
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30
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Gu S, Nguyen BN, Rao S, Li S, Shetty K, Rashid A, Shukla V, Deng CX, Mishra L, Mishra B. Alcohol, stem cells and cancer. Genes Cancer 2017; 8:695-700. [PMID: 29234487 PMCID: PMC5724803 DOI: 10.18632/genesandcancer.156] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Dosage, gender, and genetic susceptibility to the effects of alcohol remained only partially elucidated. In this review, we summarize the current knowledge of the mechanisms underlying the role of alcohol in liver and gastrointestinal cancers. In addition, two recent pathways- DNA repair and TGF-β signaling which provide new insights into alcohol in the regulation of cancers and stem cells are also discussed here.
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Affiliation(s)
- Shoujun Gu
- Department of Surgery, Center for Translational Medicine, George Washington University, Washington, DC, USA
| | - Bao-Ngoc Nguyen
- Department of Surgery, Center for Translational Medicine, George Washington University, Washington, DC, USA
| | - Shuyun Rao
- Department of Surgery, Center for Translational Medicine, George Washington University, Washington, DC, USA
| | - Shulin Li
- Departments of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Kirti Shetty
- Division of Gastroenterology and Hepatology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Asif Rashid
- Departments of Gastroenterology and Liver Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Vivek Shukla
- Thoracic and Gastrointestinal Oncology Branch, National Cancer Institute, Bethesda, Maryland, USA
| | - Chu-Xia Deng
- Department of Surgery, Center for Translational Medicine, George Washington University, Washington, DC, USA.,Faculty of Health Sciences, University of Macau, Macau SAR, China
| | - Lopa Mishra
- Department of Surgery, Center for Translational Medicine, George Washington University, Washington, DC, USA.,Surgical Service, Veterans Affairs Medicale Center, Washington DC, USA
| | - Bibhuti Mishra
- Department of Surgery, Center for Translational Medicine, George Washington University, Washington, DC, USA
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Azoury SC, Reddy S, Shukla V, Deng CX. Fibroblast Growth Factor Receptor 2 ( FGFR2) Mutation Related Syndromic Craniosynostosis. Int J Biol Sci 2017; 13:1479-1488. [PMID: 29230096 PMCID: PMC5723914 DOI: 10.7150/ijbs.22373] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 10/01/2017] [Indexed: 12/30/2022] Open
Abstract
Craniosynostosis results from the premature fusion of cranial sutures, with an incidence of 1 in 2,100-2,500 live births. The majority of cases are non-syndromic and involve single suture fusion, whereas syndromic cases often involve complex multiple suture fusion. The fibroblast growth factor receptor 2 (FGFR2) gene is perhaps the most extensively studied gene that is mutated in various craniosynostotic syndromes including Crouzon, Apert, Pfeiffer, Antley-Bixler, Beare-Stevenson cutis gyrata, Jackson-Weiss, Bent Bone Dysplasia, and Seathre-Chotzen-like syndromes. The majority of these mutations are missense mutations that result in constitutive activation of the receptor and downstream molecular pathways. Treatment involves a multidisciplinary approach with ultimate surgical fixation of the cranial deformity to prevent further sequelae. Understanding the molecular mechanisms has allowed for the investigation of different therapeutic agents that can potentially be used to prevent the disorders. Further research efforts are need to better understand screening and effective methods of early intervention and prevention. Herein, the authors provide a comprehensive update on FGFR2-related syndromic craniosynostosis.
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Affiliation(s)
- Saïd C. Azoury
- Department of Surgery, The Johns Hopkins Hospital, Baltimore, MD, USA
| | - Sashank Reddy
- Department of Plastic and Reconstructive Surgery, The Johns Hopkins Hospital, Baltimore, MD, USA
| | - Vivek Shukla
- TGIB, NCI, National Institutes of Health, Bethesda, MD, USA
| | - Chu-Xia Deng
- Faculty of Health Sciences, University of Macau, Macau SAR, China
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Shukla V, Rao M, Zhang H, Beers J, Wangsa D, Wangsa D, Buishand FO, Wang Y, Yu Z, Stevenson HS, Reardon ES, McLoughlin KC, Kaufman AS, Payabyab EC, Hong JA, Zhang M, Davis S, Edelman D, Chen G, Miettinen MM, Restifo NP, Ried T, Meltzer PA, Schrump DS. ASXL3 Is a Novel Pluripotency Factor in Human Respiratory Epithelial Cells and a Potential Therapeutic Target in Small Cell Lung Cancer. Cancer Res 2017; 77:6267-6281. [PMID: 28935813 DOI: 10.1158/0008-5472.can-17-0570] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 07/28/2017] [Accepted: 09/07/2017] [Indexed: 01/16/2023]
Abstract
In this study, we generated induced pluripotent stem cells (iPSC) from normal human small airway epithelial cells (SAEC) to investigate epigenetic mechanisms of stemness and pluripotency in lung cancers. We documented key hallmarks of reprogramming in lung iPSCs (Lu-iPSC) that coincided with modulation of more than 15,000 genes relative to parental SAECs. Of particular novelty, we identified the PRC2-associated protein, ASXL3, which was markedly upregulated in Lu-iPSCs and small cell lung cancer (SCLC) lines and clinical specimens. ASXL3 overexpression correlated with increased genomic copy number in SCLC lines. ASXL3 silencing inhibited proliferation, clonogenicity, and teratoma formation by Lu-iPSCs, and diminished clonogenicity and malignant growth of SCLC cells in vivo Collectively, our studies validate the utility of the Lu-iPSC model for elucidating epigenetic mechanisms contributing to pulmonary carcinogenesis and highlight ASXL3 as a novel candidate target for SCLC therapy. Cancer Res; 77(22); 6267-81. ©2017 AACR.
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Affiliation(s)
- Vivek Shukla
- Thoracic Epigenetics Section, Thoracic and Gastrointestinal Oncology Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Mahadev Rao
- Thoracic Epigenetics Section, Thoracic and Gastrointestinal Oncology Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Hongen Zhang
- Genetics Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | | | - Darawalee Wangsa
- Genetics Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Danny Wangsa
- Genetics Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | | | - Yonghong Wang
- Genetics Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Zhiya Yu
- Laboratory of Pathology, Center for Cancer Research, NCI, Rockville, Maryland
| | - Holly S Stevenson
- Genetics Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Emily S Reardon
- Thoracic Epigenetics Section, Thoracic and Gastrointestinal Oncology Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Kaitlin C McLoughlin
- Thoracic Epigenetics Section, Thoracic and Gastrointestinal Oncology Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Andrew S Kaufman
- Thoracic Epigenetics Section, Thoracic and Gastrointestinal Oncology Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Eden C Payabyab
- Thoracic Epigenetics Section, Thoracic and Gastrointestinal Oncology Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Julie A Hong
- Thoracic Epigenetics Section, Thoracic and Gastrointestinal Oncology Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Mary Zhang
- Thoracic Epigenetics Section, Thoracic and Gastrointestinal Oncology Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Sean Davis
- Genetics Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Daniel Edelman
- Genetics Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | | | - Markku M Miettinen
- Laboratory of Pathology, Center for Cancer Research, NCI, Rockville, Maryland
| | | | - Thomas Ried
- Genetics Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - Paul A Meltzer
- Genetics Branch, Center for Cancer Research, NCI, Rockville, Maryland
| | - David S Schrump
- Thoracic Epigenetics Section, Thoracic and Gastrointestinal Oncology Branch, Center for Cancer Research, NCI, Rockville, Maryland.
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Higuita-Castro N, Nelson MT, Shukla V, Agudelo-Garcia PA, Zhang W, Duarte-Sanmiguel SM, Englert JA, Lannutti JJ, Hansford DJ, Ghadiali SN. Using a Novel Microfabricated Model of the Alveolar-Capillary Barrier to Investigate the Effect of Matrix Structure on Atelectrauma. Sci Rep 2017; 7:11623. [PMID: 28912466 PMCID: PMC5599538 DOI: 10.1038/s41598-017-12044-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 09/01/2017] [Indexed: 11/25/2022] Open
Abstract
The alveolar-capillary barrier is composed of epithelial and endothelial cells interacting across a fibrous extracelluar matrix (ECM). Although remodeling of the ECM occurs during several lung disorders, it is not known how fiber structure and mechanics influences cell injury during cyclic airway reopening as occurs during mechanical ventilation (atelectrauma). We have developed a novel in vitro platform that mimics the micro/nano-scale architecture of the alveolar microenvironment and have used this system to investigate how ECM microstructural properties influence epithelial cell injury during airway reopening. In addition to epithelial-endothelial interactions, our platform accounts for the fibrous topography of the basal membrane and allows for easy modulation of fiber size/diameter, density and stiffness. Results indicate that fiber stiffness and topography significantly influence epithelial/endothelial barrier function where increased fiber stiffness/density resulted in altered cytoskeletal structure, increased tight junction (TJ) formation and reduced barrier permeability. However, cells on rigid/dense fibers were also more susceptible to injury during airway reopening. These results indicate that changes in the mechanics and architecture of the lung microenvironment can significantly alter cell function and injury and demonstrate the importance of implementing in vitro models that more closely resemble the natural conditions of the lung microenvironment.
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Affiliation(s)
- N Higuita-Castro
- Biomedical Engineering Department, The Ohio State University, Columbus, Ohio, United States.,Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio, United States
| | - M T Nelson
- Biomedical Engineering Department, The Ohio State University, Columbus, Ohio, United States
| | - V Shukla
- Biomedical Engineering Department, The Ohio State University, Columbus, Ohio, United States.,Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio, United States
| | - P A Agudelo-Garcia
- Department of Molecular and Cellular Biochemistry, The Ohio State University, Columbus, Ohio, United States
| | - W Zhang
- Department of Internal Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio, United States
| | - S M Duarte-Sanmiguel
- Biomedical Engineering Department, The Ohio State University, Columbus, Ohio, United States.,Human Nutrition Program, The Ohio State University, Columbus, Ohio, United States
| | - J A Englert
- Department of Internal Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio, United States
| | - J J Lannutti
- Department of Material Sciences and Engineering, The Ohio State University, Columbus, Ohio, United States
| | - D J Hansford
- Biomedical Engineering Department, The Ohio State University, Columbus, Ohio, United States
| | - S N Ghadiali
- Biomedical Engineering Department, The Ohio State University, Columbus, Ohio, United States. .,Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio, United States. .,Department of Internal Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio, United States.
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Mir NA, Rafiq A, Kumar F, Singh V, Shukla V. Determinants of broiler chicken meat quality and factors affecting them: a review. J Food Sci Technol 2017; 54:2997-3009. [PMID: 28974784 PMCID: PMC5603000 DOI: 10.1007/s13197-017-2789-z] [Citation(s) in RCA: 222] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 06/17/2017] [Accepted: 08/07/2017] [Indexed: 11/30/2022]
Abstract
Broiler production at mass level has already been achieved and now emphasis is being laid on increasing meat quality by altering various characteristics of broiler meat. Appearance, texture, juiciness, wateriness, firmness, tenderness, odor and flavor are the most important and perceptible meat features that influence the initial and final quality judgment by consumers before and after purchasing a meat product. The quantifiable properties of meat such as water holding capacity, shear force, drip loss, cook loss, pH, shelf life, collagen content, protein solubility, cohesiveness, and fat binding capacity are indispensable for processors involved in the manufacture of value added meat products. Nutrition of birds has a significant impact on poultry meat quality and safety. It is well known that dietary fatty acid profiles are reflected in tissue fatty acid. Management of poultry meat production is reflected mostly on consumption features (juiciness, tenderness, flavour) of meat. After slaughter, biochemical changes, causing the conversion of muscle to meat, determine final meat quality. Postmortem carcass temperature has profound effect on rigor mortis and the physicochemical changes observed in PSE muscles are attributed to postmortem glycolysis, temperature, and pH. Primary processing and further processing have become a matter of concern with respect to nutritional quality of broiler meat. Genetic variation among birds could contribute to large differences in the rate of rigor mortis completion and meat quality. Heritability estimates for meat quality traits in broilers are amazingly high (0.35-0.81), making genetic selection a best tool for improvement of broiler meat quality.
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Affiliation(s)
- Nasir Akbar Mir
- Division of AN&FT, Central Avian Research Institute, Izatnagar, Bareilly, India
| | - Aasima Rafiq
- Krishi Vigyan Kendra, SKUAST- Kashmir, Anantnag, J&K India
| | - Faneshwar Kumar
- Division of Poultry Science, IVRI, Izatnagar, Bareilly, India
| | - Vijay Singh
- Division of Poultry Science, IVRI, Izatnagar, Bareilly, India
| | - Vivek Shukla
- Division of Livestock Products Technology, Bombay Veterinary College, Parel, Mumbai, India
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35
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Chen I, Mathews-Greiner L, Li D, Abisoye-Ogunniyan A, Ray S, Bian Y, Shukla V, Zhang X, Guha R, Thomas C, Gryder B, Zacharia A, Beane JD, Ravichandran S, Ferrer M, Rudloff U. Transcriptomic profiling and quantitative high-throughput (qHTS) drug screening of CDH1 deficient hereditary diffuse gastric cancer (HDGC) cells identify treatment leads for familial gastric cancer. J Transl Med 2017; 15:92. [PMID: 28460635 PMCID: PMC5412046 DOI: 10.1186/s12967-017-1197-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 04/24/2017] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Patients with hereditary diffuse gastric cancer (HDGC), a cancer predisposition syndrome associated with germline mutations of the CDH1 (E-cadherin) gene, have few effective treatment options. Despite marked differences in natural history, histopathology, and genetic profile to patients afflicted by sporadic gastric cancer, patients with HDGC receive, in large, identical systemic regimens. The lack of a robust preclinical in vitro system suitable for effective drug screening has been one of the obstacles to date which has hampered therapeutic advances in this rare disease. METHODS In order to identify therapeutic leads selective for the HDGC subtype of gastric cancer, we compared gene expression profiles and drug phenotype derived from an oncology library of 1912 compounds between gastric cancer cells established from a patient with metastatic HDGC harboring a c.1380delA CDH1 germline variant and sporadic gastric cancer cells. RESULTS Unsupervised hierarchical cluster analysis shows select gene expression alterations in c.1380delA CDH1 SB.mhdgc-1 cells compared to a panel of sporadic gastric cancer cell lines with enrichment of ERK1-ERK2 (extracellular signal regulated kinase) and IP3 (inositol trisphosphate)/DAG (diacylglycerol) signaling as the top networks in c.1380delA SB.mhdgc-1 cells. Intracellular phosphatidylinositol intermediaries were increased upon direct measure in c.1380delA CDH1 SB.mhdgc-1 cells. Differential high-throughput drug screening of c.1380delA CDH1 SB.mhdgc-1 versus sporadic gastric cancer cells identified several compound classes with enriched activity in c.1380 CDH1 SB.mhdgc-1 cells including mTOR (Mammalian Target Of Rapamycin), MEK (Mitogen-Activated Protein Kinase), c-Src kinase, FAK (Focal Adhesion Kinase), PKC (Protein Kinase C), or TOPO2 (Topoisomerase II) inhibitors. Upon additional drug response testing, dual PI3K (Phosphatidylinositol 3-Kinase)/mTOR and topoisomerase 2A inhibitors displayed up to >100-fold increased activity in hereditary c.1380delA CDH1 gastric cancer cells inducing apoptosis most effectively in cells with deficient CDH1 function. CONCLUSION Integrated pharmacological and transcriptomic profiling of hereditary diffuse gastric cancer cells with a loss-of-function c.1380delA CDH1 mutation implies various pharmacological vulnerabilities selective to CDH1-deficient familial gastric cancer cells and suggests novel treatment leads for future preclinical and clinical treatment studies of familial gastric cancer.
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Affiliation(s)
- Ina Chen
- Thoracic and Gastrointestinal Oncology Branch, National Cancer Institute, National Institutes for Health, CCR 4 West/4-3740, 10 Center Drive, Bethesda, MD, 20892-0001, USA.,Washington University School of Medicine, St. Louis, KY, USA
| | - Lesley Mathews-Greiner
- Division of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Dandan Li
- Thoracic and Gastrointestinal Oncology Branch, National Cancer Institute, National Institutes for Health, CCR 4 West/4-3740, 10 Center Drive, Bethesda, MD, 20892-0001, USA
| | - Abisola Abisoye-Ogunniyan
- Thoracic and Gastrointestinal Oncology Branch, National Cancer Institute, National Institutes for Health, CCR 4 West/4-3740, 10 Center Drive, Bethesda, MD, 20892-0001, USA.,Department of Biology and Center for Cancer Research, Tuskegee University, Tuskegee, AL, USA
| | | | - Yansong Bian
- Thoracic and Gastrointestinal Oncology Branch, National Cancer Institute, National Institutes for Health, CCR 4 West/4-3740, 10 Center Drive, Bethesda, MD, 20892-0001, USA
| | - Vivek Shukla
- Thoracic and Gastrointestinal Oncology Branch, National Cancer Institute, National Institutes for Health, CCR 4 West/4-3740, 10 Center Drive, Bethesda, MD, 20892-0001, USA
| | - Xiaohu Zhang
- Division of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Raj Guha
- Division of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Craig Thomas
- Division of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | | | - Athina Zacharia
- Thoracic and Gastrointestinal Oncology Branch, National Cancer Institute, National Institutes for Health, CCR 4 West/4-3740, 10 Center Drive, Bethesda, MD, 20892-0001, USA
| | - Joal D Beane
- Indiana University School of Medicine, Indianapolis, IN, USA
| | - Sarangan Ravichandran
- Advanced Biomedical Computing Center, Frederick National Laboratory for Cancer Research, Leidos Biomedical Research Inc., Frederick, MD, USA
| | - Marc Ferrer
- Division of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Udo Rudloff
- Thoracic and Gastrointestinal Oncology Branch, National Cancer Institute, National Institutes for Health, CCR 4 West/4-3740, 10 Center Drive, Bethesda, MD, 20892-0001, USA.
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36
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Chen J, Shukla V, Farci P, Andricovich J, Jogunoori W, Kwong LN, Katz LH, Shetty K, Rashid A, Su X, White J, Li L, Wang AY, Blechacz B, Raju GS, Davila M, Nguyen BN, Stroehlein JR, Chen J, Kim SS, Levin H, Machida K, Tsukamoto H, Michaely P, Tzatsos A, Mishra B, Amdur R, Mishra L. Loss of the transforming growth factor-β effector β2-Spectrin promotes genomic instability. Hepatology 2017; 65:678-693. [PMID: 28114741 PMCID: PMC5432427 DOI: 10.1002/hep.28927] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 09/13/2016] [Accepted: 10/08/2016] [Indexed: 12/15/2022]
Abstract
UNLABELLED Exposure to genotoxins such as ethanol-derived acetaldehyde leads to DNA damage and liver injury and promotes the development of cancer. We report here a major role for the transforming growth factor β/mothers against decapentaplegic homolog 3 adaptor β2-Spectrin (β2SP, gene Sptbn1) in maintaining genomic stability following alcohol-induced DNA damage. β2SP supports DNA repair through β2SP-dependent activation of Fanconi anemia complementation group D2 (Fancd2), a core component of the Fanconi anemia complex. Loss of β2SP leads to decreased Fancd2 levels and sensitizes β2SP mutants to DNA damage by ethanol treatment, leading to phenotypes that closely resemble those observed in animals lacking both aldehyde dehydrogenase 2 and Fancd2 and resemble human fetal alcohol syndrome. Sptbn1-deficient cells are hypersensitive to DNA crosslinking agents and have defective DNA double-strand break repair that is rescued by ectopic Fancd2 expression. Moreover, Fancd2 transcription in response to DNA damage/transforming growth factor β stimulation is regulated by the β2SP/mothers against decapentaplegic homolog 3 complex. CONCLUSION Dysfunctional transforming growth factor β/β2SP signaling impacts the processing of genotoxic metabolites by altering the Fanconi anemia DNA repair pathway. (Hepatology 2017;65:678-693).
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Affiliation(s)
- Jian Chen
- Department of Gastroenterology, Hepatology, and Nutrition, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Vivek Shukla
- Department of Gastroenterology, Hepatology, and Nutrition, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA,Thoracic Oncology Section, Thoracic and Gastrointestinal Oncology Branch, National Cancer Institute, Bethesda, MD 20892, USA
| | - Patrizia Farci
- Hepatic Pathogenesis Section, Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jaclyn Andricovich
- George Washington University, Department of Anatomy and Regenerative Biology, Washington, DC, 20052, USA
| | - Wilma Jogunoori
- Institute for Clinical Research, Veterans Affairs Medical Center, Washington, DC, 20422, USA
| | - Lawrence N Kwong
- Department of Translational Molecular Pathology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Lior H. Katz
- Department of Gastroenterology, Hepatology, and Nutrition, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA,Sheba Medical Center, Department of Gastroenterology, Tel Hashomer, 52621, Israel
| | - Kirti Shetty
- Division of Gastroenterology and Hepatology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Asif Rashid
- Department of Pathology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Xiaoping Su
- Department of Bioinformatics and Computational Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jon White
- Institute for Clinical Research, Veterans Affairs Medical Center, Washington, DC, 20422, USA
| | - Lei Li
- Department of Experimental Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Alan Yaoqi Wang
- Department of Cancer Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Boris Blechacz
- Department of Gastroenterology, Hepatology, and Nutrition, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Gottumukkala S. Raju
- Department of Gastroenterology, Hepatology, and Nutrition, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Marta Davila
- Department of Gastroenterology, Hepatology, and Nutrition, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Bao-Ngoc Nguyen
- Department of Surgery, George Washington University, Washington, DC, USA
| | - John R. Stroehlein
- Department of Gastroenterology, Hepatology, and Nutrition, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Junjie Chen
- Department of Experimental Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Sang Soo Kim
- National Cancer Center, Radiation Medicine Branch, Goyang, 410-769, Korea
| | - Heather Levin
- Department of Surgery, George Washington University, Washington, DC, USA
| | - Keigo Machida
- Southern California Research Center for ALPD and Cirrhosis, University of Southern California, Los Angeles, CA 90089, USA,Department of Molecular Microbiology and Immunology, Keck School of Medicine of the University of Southern California, Los Angeles, CA 90033 USA
| | - Hidekazu Tsukamoto
- Southern California Research Center for ALPD and Cirrhosis, University of Southern California, Los Angeles, CA 90089, USA,Department of Pathology, Keck School of Medicine of the University of Southern California, Los Angeles, CA 90089 USA,Department of Veterans Affairs, Greater Los Angeles Healthcare System, Los Angeles, CA 90089, USA
| | - Peter Michaely
- Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
| | - Alexandros Tzatsos
- George Washington University, Department of Anatomy and Regenerative Biology, Washington, DC, 20052, USA
| | - Bibhuti Mishra
- Institute for Clinical Research, Veterans Affairs Medical Center, Washington, DC, 20422, USA,Department of Surgery, George Washington University, Washington, DC, USA,Center for Translational Medicine, Department of Surgery, George Washington University, Washington DC 20037, USA
| | - Richard Amdur
- Department of Surgery, George Washington University, Washington, DC, USA,Center for Translational Medicine, Department of Surgery, George Washington University, Washington DC 20037, USA
| | - Lopa Mishra
- Institute for Clinical Research, Veterans Affairs Medical Center, Washington, DC, 20422, USA,Department of Surgery, George Washington University, Washington, DC, USA,Center for Translational Medicine, Department of Surgery, George Washington University, Washington DC 20037, USA,Contact Information for Correspondence: Lopa Mishra, M.D., Director, Center for Translational Medicine, Professor, Department of Surgery, MFA, VA & George Washington University, 2300 Eye Street NW, Ross Hall #554, Washington, DC 20037, Tel: 240-401-2916, Fax: 202-462-2006, ,
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37
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Shukla V, Bhatnagar A, Soni PK, Vishwakarma AK, Shaz MA, Yadav TP, Srivastava ON. Enhanced hydrogen sorption in a Li–Mg–N–H system by the synergistic role of Li4(NH2)3BH4 and ZrFe2. Phys Chem Chem Phys 2017; 19:9444-9456. [DOI: 10.1039/c6cp08333a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present investigation describes the synergistic role of Li4(BH4)(NH2)3 and ZrFe2 in the hydrogen storage behaviour of a Li–Mg–N–H hydride system.
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Affiliation(s)
- Vivek Shukla
- Hydrogen Energy Centre
- Department of Physics
- Banaras Hindu University
- Varanasi-221005
- India
| | - Ashish Bhatnagar
- Hydrogen Energy Centre
- Department of Physics
- Banaras Hindu University
- Varanasi-221005
- India
| | - Pawan K. Soni
- Hydrogen Energy Centre
- Department of Physics
- Banaras Hindu University
- Varanasi-221005
- India
| | - Alok K. Vishwakarma
- Hydrogen Energy Centre
- Department of Physics
- Banaras Hindu University
- Varanasi-221005
- India
| | - M. A. Shaz
- Hydrogen Energy Centre
- Department of Physics
- Banaras Hindu University
- Varanasi-221005
- India
| | - T. P. Yadav
- Hydrogen Energy Centre
- Department of Physics
- Banaras Hindu University
- Varanasi-221005
- India
| | - O. N. Srivastava
- Hydrogen Energy Centre
- Department of Physics
- Banaras Hindu University
- Varanasi-221005
- India
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38
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Straughan DM, Azoury SC, Shukla V. Anaplastic Lymphoma Kinase Inhibitors in Non-Small Cell Lung Cancer. Curr Drug Targets 2016; 17:739-45. [PMID: 26073862 DOI: 10.2174/1573399811666150615144336] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 06/04/2015] [Accepted: 08/01/2015] [Indexed: 11/22/2022]
Abstract
Lung cancer is the leading cause of cancer death among both sexes in the United States and non-small cell lung cancer (NSCLC) is the most common type of lung cancer. Over the last several decades, there have been many advances in both surgical approaches and systemic therapies for the treatment of NSCLC, but the prognosis for advanced disease remains poor. New research, however, is exploring the use of targeted therapies for the treatment of NSCLC. The anaplastic lymphoma kinase (ALK) is involved in normal mammalian central nervous system development. A novel fusion gene involving ALK and the echinoderm microtubule-associated protein-like 4 (EML4) gene has been associated with approximately 5% of NSCLCs and is mutually exclusive of other oncogenic driver mutations. Targeted therapies against this ALK rearrangement are a relatively new treatment modality that aims to improve the prognosis of patients with late-stage disease. Two such drugs have Food and Drug Administration (FDA) approval currently: Crizotinib and Ceritinib. Many other ALK inhibitors are currently being studied in clinical trials as well. The authors aim to provide a comprehensive review of ALK inhibitors for use in NSCLC as well as the future directions and challenges to developing these targeted therapies.
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Affiliation(s)
| | | | - Vivek Shukla
- Thoracic and GI Oncology Branch, National Institutes of Health, Bathesda, MD 20892, USA.
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39
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Abstract
Submitral aneurysm is a rare entity, with around few hundred cases reported till date. Presentation can be varied. We describe here a case of submitral aneurysm in a young male with rupture into the left atrium cavity.
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Affiliation(s)
- V Shukla
- Senior Resident, Department of Cardiology, P.G.I.M.E.R., Dr. R.M.L. Hospital, India.
| | - R K Nath
- Professor, Department of Cardiology, P.G.I.M.E.R., Dr. R.M.L. Hospital, India
| | - N Pandit
- Professor and Head, Department of Cardiology, P.G.I.M.E.R., Dr. R.M.L. Hospital, India
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40
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Chen J, Shukla V, Chen JS, Panditab RK, Jeong YS, Katz LH, Shin JH, Gi Y, Kwongc LN, Huntb CR, Farci P, Su X, White J, Mishra B, Rashid A, Javle M, Li L, Chen J, Stroehlein JR, Davila M, Akbani R, Machidao K, Tsukamoto H, Pandita TK, Mishra L. Abstract 3594: The TGF-β effector β2SP depletion abrogates DNA damage repair. Cancer Res 2016. [DOI: 10.1158/1538-7445.am2016-3594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Objective: Exposure to genotoxins, such as ethanol-derived acetaldehyde, leads to DNA damage, liver injury, and promotes the development of cancer. Alcohol-related genotoxicity, arising from DNA damage by metabolically generated reactive aldehydes, has recently been observed in models with genetic inactivation of members of the Fanconi anemia pathway. However, sensors for genotoxicity leading to aberrant DNA repair remain elusive. Transforming growth factor β (TGF-β) is a critical protein in the regulation of several cancer phenotypes and also functions as an extracellular sensor of ionizing radiation-induced cell damage. Yet, how the TGF-β pathway contributes to toxin-induced DNA damage repair remains unclear. We utilized the TGF-β/β2SP mutant mouse model to investigate the mechanisms in relation to β2SP-mediated TGF-β modulation of the Fanconi anemia pathway for DNA damage repair, alcohol sensitivity, and liver tumorigenesis. Methods: (1) β2SP mutant mice were treated with alcohol to determine their susceptibility to aldehyde-induced developmental abnormalities. (2) Genomic instability and sensitivity to DNA damaging agents in primary β2SP+/+, β2SP-/- MEFs were determined by clonogenic survival and metaphase chromosome aberrations analysis. (3) Defective S-phase specific DNA repair in β2SP-/- MEFs were determined by DNA replication restart assays. (4) ChIP assays were performed to determine the recruitment of β2SP/Smad3 at FancD2 promoter. (5) We investigated the clinical relevance of altered β2SP and FancD2 function using immunohistochemical analyses of 20 human liver specimens from alcoholic hepatitis (n = 5), alcoholic cirrhosis (n = 5), and alcohol-associated liver cancer (n = 5), as well as normal controls (n = 5). Results: (1) Sptbn1-deficient mice exhibit a phenotype similar to human fetal alcohol syndrome and are sensitive to ethanol exposure. (2) Sptbn1-deficient cells exhibit genomic instability and hypersensitivity to DNA damage (3) Sptbn1-deficiency delays DNA damage repair. (4) Furthermore, Sptbn1-deficient cells are defective in stalled DNA replication fork resolution and homologous recombination. (5) FancD2 ectopic expression rescues the DNA repair defect in Sptbn1 null cells. (6) β2SP and FancD2 are clinically correlated in alcoholic hepatitis and HCCs. Conclusions: Our model proposes that in response to liver toxins such as alcohol, the TGF-β/β2SP/Smad3 pathway prevents liver injury and cancer through its direct effects on DNA repair and genomic stability. Thus, characterizing the role of TGF-β in alcohol-induced injury could potentially enhance our mechanistic insight into the basis for therapeutics targeting toxin-induced DNA damage and tumorigenesis.
Citation Format: Jian Chen, Vivek Shukla, Jiun-Sheng Chen, Raj K. Panditab, Yun Seong Jeong, Lior H Katz, Ji-Hyun Shin, YoungJin Gi, Lawrence N. Kwongc, Clayton R. Huntb, Patrizia Farci, Xiaoping Su, Jon White, Bibhuti Mishra, Asif Rashid, Milind Javle, Lei Li, Junjie Chen, John R, Stroehlein, Marta Davila, Rehan Akbani, Keigo Machidao, Hidekazu Tsukamoto, Tej K. Pandita, Lopa Mishra. The TGF-β effector β2SP depletion abrogates DNA damage repair. [abstract]. In: Proceedings of the 107th Annual Meeting of the American Association for Cancer Research; 2016 Apr 16-20; New Orleans, LA. Philadelphia (PA): AACR; Cancer Res 2016;76(14 Suppl):Abstract nr 3594.
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Affiliation(s)
- Jian Chen
- 1UT MD Anderson Cancer Center, Houston, TX
| | | | | | | | | | | | | | | | | | | | | | | | - Jon White
- 4Institute of Clinical Research, Veterans Affairs Medical Center, Washington DC, DC
| | - Bibhuti Mishra
- 4Institute of Clinical Research, Veterans Affairs Medical Center, Washington DC, DC
| | | | | | - Lei Li
- 1UT MD Anderson Cancer Center, Houston, TX
| | | | | | | | | | - Keigo Machidao
- 5Southern California Research Center for ALPD and Cirrhosis, University of Southern California, Houston, TX
| | - Hidekazu Tsukamoto
- 6Southern California Research Center for ALPD and Cirrhosis, University of Southern California, Los Angeles, CA
| | | | - Lopa Mishra
- 7George Washington University, Washington DC, DC
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41
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Azoury SC, Gilmore RC, Shukla V. Molecularly targeted agents and immunotherapy for the treatment of head and neck squamous cell cancer (HNSCC). Discov Med 2016; 21:507-516. [PMID: 27448787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Squamous cell carcinoma is one of the most frequent tumors of the head and neck and often presents at an advanced-stage. Traditionally, treatment for head and neck squamous cell carcinoma (HNSCC) has included surgery, radiation, and chemotherapy depending on both the site and stage of disease. Although the treatment approach for local disease is often standardized, the management of recurrent and advanced disease is evolving. A better understanding of the molecular mechanisms of HNSCC has led to numerous promising investigations and the push for the development of novel therapies. Similarly, over the past several decades, growing data supports the notion that an individual's immune system can be manipulated in such a way to help eradicate cancer. The success of immunotherapeutic agents such as interleukin therapy and immune checkpoint inhibitor blockade in cancer, particularly advanced-stage melanoma, has stimulated researchers to uncover similar success stories in HNSCC. Examples of immunotherapeutics that are being studied for the treatment of HNSCC include adoptive T-cell therapy, vaccines, and immune checkpoint inhibitor proteins (e.g., anti-CTLA-4, -PD-1, -PD-L1). Molecularly targeted agents of interest include inhibitors of transmembrane growth factor receptors, angiogenesis, and PI3K/AKT/mTOR and NOTCH signaling pathways. To date, cetuximab, an epidermal growth factor receptor inhibitor, is the only targeted agent for HNSCC that was approved by the Federal Food and Drug Administration (FDA) on the basis that it improves overall survival when combined with chemotherapy or radiation. Herein, the authors provide an up-to-date review of immunotherapeutic and molecularly targeted agents for the treatment of HNSCC.
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Affiliation(s)
- SaÏd C Azoury
- Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD 21202, USA
| | - Richard C Gilmore
- Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD 21202, USA
| | - Vivek Shukla
- Thoracic and Gastrointestinal Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
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Abstract
A major breakthrough in cancer immunotherapy was the discovery of immune checkpoint proteins, which function to effectively inhibit the immune system through various mechanisms. The first of such molecules shown to inhibit both T-cell proliferation and IL-2 production was cytotoxic T-lymphocyte associated protein 4 (CTLA-4). With this discovery, efforts turned to blocking this inhibitory pathway in an attempt to activate dormant T-cells directed at cancer cells. The first antibody directed against CTLA-4, ipilimumab, was quickly ushered into clinical trials and was approved by the US Food and Drug Administration (FDA) for the treatment of metastatic melanoma in 2011. Following the success of ipilimumab, other immune checkpoints were studied as possible targets for inhibition. One such interaction was that of the programmed cell death-1 (PD-1) T-cell receptor and its ligand found on many cancer cells, programmed death-ligand 1 (PD-L1). Unfortunately, the untoward effects of blocking the immune system's natural inhibitory mechanisms have manifested clinically as diarrhea, rash, and hepatitis. Nevertheless, the exciting field of immune checkpoint inhibitors offers a potential curative option for many cancer patients who previously had a more dismal prognosis. The authors aim to provide a comprehensive review of the literature and update on the use of CTLA-4, PD-1 and PD-L1 targeted therapy in the treatment of cancer and other molecules still in the early development phase.
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Affiliation(s)
| | | | - Vivek Shukla
- Thoracic and Gastrointestinal Oncology Branch, National Cancer Institute, National Institutes of Health, 10 Center Drive, Room 3W5848, Bethesda, MD 20892, USA.
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Rao M, Atay SM, Shukla V, Hong Y, Upham T, Ripley RT, Hong JA, Zhang M, Reardon E, Fetsch P, Miettinen M, Li X, Peer CJ, Sissung T, Figg WD, De Rienzo A, Bueno R, Schrump DS. Mithramycin Depletes Specificity Protein 1 and Activates p53 to Mediate Senescence and Apoptosis of Malignant Pleural Mesothelioma Cells. Clin Cancer Res 2016; 22:1197-210. [PMID: 26459178 PMCID: PMC4775437 DOI: 10.1158/1078-0432.ccr-14-3379] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Accepted: 09/27/2015] [Indexed: 01/21/2023]
Abstract
PURPOSE Specificity protein 1 (SP1) is an oncogenic transcription factor overexpressed in various human malignancies. This study sought to examine SP1 expression in malignant pleural mesotheliomas (MPM) and ascertain the potential efficacy of targeting SP1 in these neoplasms. EXPERIMENTAL DESIGN qRT-PCR, immunoblotting, and immunohistochemical techniques were used to evaluate SP1 expression in cultured MPM cells and MPM specimens and normal mesothelial cells/pleura. MTS, chemotaxis, soft agar, β-galactosidase, and Apo-BrdUrd techniques were used to assess proliferation, migration, clonogenicity, senescence, and apoptosis in MPM cells following SP1 knockdown, p53 overexpression, or mithramycin treatment. Murine subcutaneous and intraperitoneal xenograft models were used to examine effects of mithramycin on MPM growth in vivo. Microarray, qRT-PCR, immunoblotting, and chromatin immunoprecipitation techniques were used to examine gene expression profiles mediated by mithramycin and combined SP1 knockdown/p53 overexpression and correlate these changes with SP1 and p53 levels within target gene promoters. RESULTS MPM cells and tumors exhibited higher SP1 mRNA and protein levels relative to control cells/tissues. SP1 knockdown significantly inhibited proliferation, migration, and clonogenicity of MPM cells. Mithramycin depleted SP1 and activated p53, dramatically inhibiting proliferation and clonogenicity of MPM cells. Intraperitoneal mithramycin significantly inhibited growth of subcutaneous MPM xenografts and completely eradicated mesothelioma carcinomatosis in 75% of mice. Mithramycin modulated genes mediating oncogene signaling, cell-cycle regulation, senescence, and apoptosis in vitro and in vivo. The growth-inhibitory effects of mithramycin in MPM cells were recapitulated by combined SP1 knockdown/p53 overexpression. CONCLUSIONS These findings provide preclinical rationale for phase II evaluation of mithramycin in patients with mesothelioma.
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Affiliation(s)
- Mahadev Rao
- Thoracic Epigenetics Section, Thoracic and GI Oncology Branch, National Cancer Institute, Bethesda, Maryland
| | - Scott M Atay
- Thoracic Epigenetics Section, Thoracic and GI Oncology Branch, National Cancer Institute, Bethesda, Maryland
| | - Vivek Shukla
- Thoracic Epigenetics Section, Thoracic and GI Oncology Branch, National Cancer Institute, Bethesda, Maryland
| | - Young Hong
- Thoracic Epigenetics Section, Thoracic and GI Oncology Branch, National Cancer Institute, Bethesda, Maryland
| | - Trevor Upham
- Thoracic Epigenetics Section, Thoracic and GI Oncology Branch, National Cancer Institute, Bethesda, Maryland
| | - R Taylor Ripley
- Thoracic Epigenetics Section, Thoracic and GI Oncology Branch, National Cancer Institute, Bethesda, Maryland
| | - Julie A Hong
- Thoracic Epigenetics Section, Thoracic and GI Oncology Branch, National Cancer Institute, Bethesda, Maryland
| | - Mary Zhang
- Thoracic Epigenetics Section, Thoracic and GI Oncology Branch, National Cancer Institute, Bethesda, Maryland
| | - Emily Reardon
- Thoracic Epigenetics Section, Thoracic and GI Oncology Branch, National Cancer Institute, Bethesda, Maryland
| | - Patricia Fetsch
- Laboratory of Pathology, National Cancer Institute, Bethesda, Maryland
| | - Markku Miettinen
- Laboratory of Pathology, National Cancer Institute, Bethesda, Maryland
| | - Xinmin Li
- Clinical Micro-array Core, University of California, Los Angeles, California
| | - Cody J Peer
- Molecular Pharmacology Section, Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Tristan Sissung
- Molecular Pharmacology Section, Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - William D Figg
- Molecular Pharmacology Section, Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Assunta De Rienzo
- Division of Thoracic Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - Raphael Bueno
- Division of Thoracic Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - David S Schrump
- Thoracic Epigenetics Section, Thoracic and GI Oncology Branch, National Cancer Institute, Bethesda, Maryland.
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Gehlot P, Shukla V, Gupta S, Makidon PE. Detection of ALDH1 activity in rabbit hepatic VX2 tumors and isolation of ALDH1 positive cancer stem cells. J Transl Med 2016; 14:49. [PMID: 26873175 PMCID: PMC4752741 DOI: 10.1186/s12967-016-0785-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2015] [Accepted: 01/17/2016] [Indexed: 12/24/2022] Open
Abstract
Background Aldehyde dehydrogenase 1 (ALDH1) activity has been implicated in the therapeutic drug resistance of many malignancies and has been widely used as a marker to identify stem-like cells, including in primary liver cancer. Cancer stem cells (CSCs) are thought to play a crucial role in cancer progression and metastasis. In order to clarify the validity of the rabbit VX2 liver cancer model, we questioned if it expresses ALDH1 as a potential marker of CSCs. Hepatocellular carcinoma is a common malignancy worldwide and has poor prognosis. Most of the animal models used to study hepatocellular carcinoma are rodent models which lack clinical relevance. The rabbit VX2 model is a large animal model useful for preclinical and for developing drugs targeting cancer stem cells. Materials and methods We used flow cytometry to identify rabbit VX2 liver tumor cells that express ALDH1A1 activity at a high level and confirmed the results with RT-PCR, immunohistochemical and western blot analyses. Further, mRNA and protein expression analysis of tumor samples also express the markers for stemness like klf4, oct3/4, CD44 and nanog as well as the differentiation marker α-fetoprotein. Results We used Aldefluor flow cytometry-based assay to identify cells with high ALDH1 activity in the rabbit VX2 liver cancer model. We used the brightest 4.39 % of the total cancer cell population in our study. We performed semi-quantitative as well as real time PCR to characterize the stemness derived from VX2 tumors and tissues from normal rabbit liver. We demonstrated that VX2 tumors have higher expression of cancer stem cell markers such as AlDH1A1 and CD44 in comparison to normal rabbit liver cells. Additionally, real time PCR analysis of the same samples using syber-green demonstrated the significant change (p > 0.05) in the expression of genes. We validated the gene expression of the stemness markers by performing western blot and immunofluorescence. We showed that cancer stem cell markers (AlDH1A1, CD44) and the differentiation marker α-fetoprotein were upregulated in VX2 tumor cells. The same extent of upregulation was observed in stemness markers (klf4, oct3/4 and nanog) in VX2 tumors in comparison to normal rabbit liver. Conclusion The overall results of this study indicate that ALDH1 is a valid CSC marker for VX2 cancer. This finding suggests that the rabbit VX2 liver cancer model is useful in studying drug resistance in hepatocellular carcinoma and may be useful for basic and preclinical studies of other types of human cancer. Electronic supplementary material The online version of this article (doi:10.1186/s12967-016-0785-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Prashasnika Gehlot
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA.
| | | | - Sanjay Gupta
- Department of Diagnostic Radiology-Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA.
| | - Paul E Makidon
- The Unit for Laboratory Animal Medicine, University of Michigan Medical School, Ann Arbor, MI, 48109, USA.
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Soni A, Kandeepan G, Mendiratta SK, Shukla V, Kumar A. Development and characterization of essential oils incorporated carrageenan based edible film for packaging of chicken patties. ACTA ACUST UNITED AC 2016. [DOI: 10.1108/nfs-05-2015-0065] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Purpose
– The purpose of this paper was to develop an antimicrobial edible film coated with essential oils for packaging application with characterization of its physicochemical properties. Livestock products especially meat products need special packaging system for protection. The most well-known packaging materials are polyethylene or co-polymer-based materials which have led to serious ecological problems due to their non-biodegradability and non-renewable nature. There has been a growing interest for edible films in recent years trying to reduce the amount of wastes, capable of protecting the food once the primary packaging is open, and because of public concerns about environmental protection. Various kinds of antimicrobial substances can also be incorporated into edible films to improve their functionality, as these substances could limit or prevent microbial growth on food surface.
Design/methodology/approach
– Biopolymers such as carrageenan and carboxymethylcellulose and their various combinations were tried to develop an edible film. The levels of antimicrobial substances such as oregano and thyme essential oils were standardized on the basis of their minimal inhibitory concentration against Escherichia coli, Salmonella pullorum, Staphylococcus aureus and Listeria monocytogenes. Standardized edible film coated with standardized concentration of essential oil was examined for different physicochemical properties and compared with edible film without essential oil.
Findings
– In total, 1.5 per cent (w/v) solution of carrageenan was found best suited biopolymer for edible film formation on the basis of thickness, transparency and elongation ability. Combined concentration of oregano (0.02 per cent) and thyme (0.03 per cent) essential oils were found to be best suited for coating the edible film as antimicrobial application.
Research limitations/implications
– Future research may benefit from the present attempt in evaluating the potency of easily available agricultural by produces for preparation of economically viable edible film incorporated with various natural biopreservatives in combination for the enhancement of shelf life.
Originality/value
– Antimicrobial packaging for enhancing the quality and shelf life of stored meat products offers great scope for further research in this field. Moreover, the literature pertaining to the application of edible films containing biopreservative for chicken meat products is very limited.
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Schrump DS, Zhang M, Hong J, Shukla V, Ripley TR, Atay SM, Hong Y, Peer CJ, Sissung TM, Figg WD. Gene expression analysis enables repositioning of mithramycin for precision medicine inhibition of cancer stem cell signaling in thoracic malignancies. J Am Coll Surg 2015. [DOI: 10.1016/j.jamcollsurg.2015.08.244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Shin JH, Katz LH, Munoz NM, Cortes A, Shukla V, Kim SB, Herlong F, Machida K, Tsukamoto H, Shetty K, He AR, Johnson LB, Rashid A, Chen J, Lee JS, Mishra L. Abstract 892: Vitamin D deficiency regulates TLR7 to promote hepatocellular cancer in TGF-β/Smad3 heterozygous mice. Cancer Res 2015. [DOI: 10.1158/1538-7445.am2015-892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Hepatocellular carcinoma (HCC) is the fifth most common tumor and the third leading cause of cancer-related deaths. Loss of TGF-β signaling has been associated with development of HCC. Cancer preventive effects of Vitamin D (VD) have been implicated in multiple cancers, however a clear role for Vitamin D in specific high risk populations remains undefined for HCC. Therefore, we examined for a potential chemopreventive role of VD in HCC in the context of TGF-β inactivation.
Methods: (1) We screened for somatic mutation of the TGF-β pathway and VD related genes in 202 HCCs from The Cancer Genome Atlas (TCGA). (2) Wild type, Sptbn1+/- and Smad3+/- mice were fed with low VD (200 IU VD/kg) or high VD diet (10,000 IU VD/kg) for 9 weeks. Liver tissues were subjected to microarray analyses and further evaluation by quantitative PCR. (3) Wild type, Sptbn1+/- and Smad3+/- mice were injected Diethylnitrosamine (DEN) and at 8 month, 26 mice receiving low VD (200 IU VD/kg) and 26 mice receiving high VD (10,000 IU VD/kg) chow. HCC development was assessed at 4 months after VD treatment. (4) Reverse Phase Protein Array (RPPA) was performed to analyze expression profiles of 164 proteins of mouse liver tumors. (5) Liver samples from patients with HCV cirrhosis receiving VD supplements were examined to evaluate expression of TGF-β, Wnt and VD pathway molecules by immunohistochemistry.
Results: (1) We observed a high rate of somatic mutation in TGF-β and VD pathway related genes in the TCGA genomic analysis. (2) None of the VD treated mice developed HCC but high VD treatment increased TLR7 mRNA expression about 3-fold in liver from Smad3+/- mice compared with livers from WT mice. (3) Smad3+/- mice with low VD showed 3-fold larger HCC formation, compared to the high VD group (Smad3+/-) that did not develop significant tumors. However, correction of VD in the Chow after 10 months did not reverse HCC formation. (4) RPPA data revealed that the tumor suppressor protein PDCD4 was reduced in Smad3+/- mice with low VD treatment. However, oncoproteins such as β-catenin, Stat5A and Bcl2-XL were induced in the same sample. (5) Expression of β2SP and TβRII were higher in HCV cirrhosis patients receiving VD supplementation compared to non-treated group.
Conclusions: Loss of TGF-β signaling pathway developed HCC and VD deficiency promotes tumor growth in the context of Smad3 disruption potentially through regulation of TLR7 expression. However, after 10 months restoring VD does not have any significant effect on altering tumors. Therefore VD could be a potential candidate for prevention in early identified HCC high risk individuals who has inactivation of TGF-β/Smad3 signaling.
Citation Format: Ji-hyun Shin, Lior H. Katz, Nina M. Munoz, Andrea Cortes, Vivek Shukla, Sang-Bae Kim, Franklin Herlong, Keigo Machida, Hidekazu Tsukamoto, Kirti Shetty, Aiwu R. He, Lynt B. Johnson, Asif Rashid, Jian Chen, Ju-Seog Lee, Lopa Mishra. Vitamin D deficiency regulates TLR7 to promote hepatocellular cancer in TGF-β/Smad3 heterozygous mice. [abstract]. In: Proceedings of the 106th Annual Meeting of the American Association for Cancer Research; 2015 Apr 18-22; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Res 2015;75(15 Suppl):Abstract nr 892. doi:10.1158/1538-7445.AM2015-892
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Jian Chen
- 1MD Anderson Cancer Center, Houston, TX
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Pinchevsky Y, Shukla V, Butkow N, Raal FJ, Chirwa T. The achievement of glycaemic, blood pressure and LDL cholesterol targets in patients with type 2 diabetes attending a South African tertiary hospital outpatient clinic. Journal of Endocrinology, Metabolism and Diabetes of South Africa 2015. [DOI: 10.1080/16089677.2015.1056468] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Leonard M, Kangas B, Makriyannis A, Nikas S, Shukla V, Alapafuja S, Bergman J. Evaluation of FAAH‐ and MGL‐Inhibition in Cannabinoid Drug Discrimination. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.1019.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Brian Kangas
- McLean HospitalHarvard Medical SchoolBelmontMAUnited States
| | | | - Spyros Nikas
- Center for Drug Discovery Northeastern UniversityBostonMAUnited States
| | - V. Shukla
- Center for Drug Discovery Northeastern UniversityBostonMAUnited States
| | - Shakiru Alapafuja
- Center for Drug Discovery Northeastern UniversityBostonMAUnited States
| | - Jack Bergman
- McLean HospitalHarvard Medical SchoolBelmontMAUnited States
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Shukla V, Kandeepan G, Vishnuraj MR. Development of on package indicator sensor for real-time monitoring of meat quality. Vet World 2015; 8:393-7. [PMID: 27047103 PMCID: PMC4774849 DOI: 10.14202/vetworld.2015.393-397] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 02/04/2015] [Accepted: 02/13/2015] [Indexed: 11/23/2022] Open
Abstract
AIM The aim was to develop an indicator sensor for real-time monitoring of meat quality and to compare the response of indicator sensor with meat quality parameters at ambient temperature. MATERIALS AND METHODS Indicator sensor was prepared using bromophenol blue (1% w/v) as indicator solution and filter paper as indicator carrier. Indicator sensor was fabricated by coating indicator solution onto carrier by centrifugation. To observe the response of indicator sensor buffalo meat was packed in polystyrene foam trays covered with PVC film and indicator sensor was attached to the inner side of packaging film. The pattern of color change in indicator sensor was monitored and compared with meat quality parameters viz. total volatile basic nitrogen, D-glucose, standard plate count and tyrosine value to correlate ability of indicator sensor for its suitability to predict the meat quality and storage life. RESULTS The indicator sensor changed its color from yellow to blue starting from margins during the storage period of 24 h at ambient temperature and this correlated well with changes in meat quality parameters. CONCLUSIONS The indicator sensor can be used for real-time monitoring of meat quality as the color of indicator sensor changed from yellow to blue starting from margins when meat deteriorates with advancement of the storage period. Thus by observing the color of indicator sensor quality of meat and shelf life can be predicted.
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Affiliation(s)
- Vivek Shukla
- Division of Livestock Products Technology, Indian Veterinary Research Institute, Bareilly, Izatnagar, Uttar Pradesh, India
| | - G. Kandeepan
- Division of Livestock Products Technology, Indian Veterinary Research Institute, Bareilly, Izatnagar, Uttar Pradesh, India
| | - M. R. Vishnuraj
- Division of Livestock Products Technology, Indian Veterinary Research Institute, Bareilly, Izatnagar, Uttar Pradesh, India
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