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JOURNAL ARTICLE
Hari Varun Kalluri, Ryota Kikuchi, Sheryl Coppola, Jeffrey Schmidt, Mohamed-Eslam F Mohamed, Daniel A J Bow, Ahmed Hamed Salem
Organic anion transporting polypeptide (OATP) 1B1 and OATP1B3 are involved in the disposition of a variety of commonly prescribed drugs. The evaluation of OATP1B1/1B3 inhibition potential by investigational drugs is of interest during clinical drug development due to various adverse events associated with increased exposures of their substrates. Regulatory guidance documents on the in vitro assessment of OATP1B1/1B3 inhibition potential are conservative with up to a third of predictions resulting in false positives...
October 13, 2020: Clinical and Translational Science
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JOURNAL ARTICLE
Kathleen M McAndrews, Dara P Dowlatshahi, Jianli Dai, Lisa M Becker, Janine Hensel, Laura M Snowden, Jennifer M Leveille, Michael R Brunner, Kylie W Holden, Nikolas S Hopkins, Alexandria M Harris, Jerusha Kumpati, Michael A Whitt, J Jack Lee, Luis L Ostrosky-Zeichner, Ramesha Papanna, Valerie S LeBleu, James P Allison, Raghu Kalluri
Evaluation of potential immunity against the novel severe acute respiratory syndrome (SARS) coronavirus that emerged in 2019 (SARS-CoV-2) is essential for health, as well as social and economic recovery. Generation of antibody response to SARS-CoV-2 (seroconversion) may inform on acquired immunity from prior exposure, and antibodies against the SARS-CoV-2 spike protein receptor binding domain (S-RBD) are speculated to neutralize virus infection. Some serology assays rely solely on SARS-CoV-2 nucleocapsid protein (N-protein) as the antibody detection antigen; however, whether such immune responses correlate with S-RBD response and COVID-19 immunity remains unknown...
September 17, 2020: JCI Insight
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JOURNAL ARTICLE
Navid Zeraatkar, Kesava S Kalluri, Benjamin Auer, Arda Konik, Timothy J Fromme, Lars R Furenlid, Phillip H Kuo, Michael A King
We designed a dedicated multi-detector multi-pinhole brain SPECT scanner to generate images of higher quality compared to general-purpose systems. The system, AdaptiSPECT-C, is intended to adapt its sensitivity-resolution trade-off by varying its aperture configurations allowing both high-sensitivity dynamic and high-spatial-resolution static imaging. The current system design consists of 23 detector heads arranged in a truncated spherical geometry. In this work, we investigated the axial and angular sampling capability of the current stationary system design...
August 7, 2020: IEEE Transactions on Medical Imaging
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REVIEW
Shuzhen Shi, Ya Gao, Ming Liu, Youxiang Bu, Jiarui Wu, Jinhui Tian, Junhua Zhang
Several studies have demonstrated that exosomes have a very broad prospect in the field of cancer therapy. This study aims to identify the general characteristics, cooperation of authors, countries and explore the hot topics of the top 100 cited articles on tumor-related exosomes. We searched the Web of Science Core Collection on June 28, 2019, to collect related publications. Microsoft Excel 2016 and VOSviewer 1.6.9 were applied to analyze the publication year, citations, authors, countries, institutions, journals, and keywords...
April 7, 2020: Clinical and Experimental Medicine
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MULTICENTER STUDY
Jacqueline G Parchem, Clifton O Brock, Han-Yang Chen, Raghu Kalluri, John R Barton, Baha M Sibai
OBJECTIVE: To evaluate whether abnormal plasma placental growth factor (PlGF) level is associated with adverse neonatal and maternal outcomes. METHODS: This was a secondary analysis of the Preeclampsia Triage by Rapid Assay Trial (PETRA), a prospective, multicenter, observational study that enrolled women with suspected preeclampsia. Our analysis included women age 18-45 years with a singleton pregnancy between 20 and 41 weeks of gestation. Plasma collected at enrollment was used for PlGF measurement...
March 2020: Obstetrics and Gynecology
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JOURNAL ARTICLE
Arda Konik, Benjamin Auer, Jan De Beenhouwer, Kesava Kalluri, Navid Zeraatkar, Lars R Furenlid, Michael A King
Multi-pinhole (MPH) collimators are known to provide better trade-off between sensitivity and resolution for preclinical, as well as for smaller regions in clinical SPECT imaging compared to conventional collimators. In addition to this geometric advantage, MPH plates typically offer better stopping power for penetration than the conventional collimators, which is especially relevant for I-123 imaging. The I-123 emits a series of high-energy (>300 keV, ~2.5% abundance) gamma photons in addition to the primary emission (159 keV, 83% abundance)...
November 19, 2019: Physics in Medicine and Biology
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JOURNAL ARTICLE
Jhansi R Kalluri, Julianna West, Giridhar R Akkaraju, Leigh T Canham, Jeffery L Coffer
The properties of nanostructured plant-derived porous silicon (pSi) microparticles as potential candidates to increase the bioavailability of plant extracts possessing anti-inflammatory activity are described in this work. pSi drug carriers were fabricated using an eco-friendly route from the silicon accumulator plant bamboo (tabasheer) powder by magnesiothermic reduction of plant-derived silica and loaded with ethanolic extracts of Equisetum arvense , another silicon accumulator plant rich in polyphenolic compounds...
May 31, 2019: ACS Omega
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JOURNAL ARTICLE
Aditya S Kalluri, Shamsudheen K Vellarikkal, Elazer R Edelman, Lan Nguyen, Ayshwarya Subramanian, Patrick T Ellinor, Aviv Regev, Sekar Kathiresan, Rajat M Gupta
BACKGROUND: The cells that form the arterial wall contribute to multiple vascular diseases. The extent of cellular heterogeneity within these populations has not been fully characterized. Recent advances in single-cell RNA-sequencing make it possible to identify and characterize cellular subpopulations. METHODS: We validate a method for generating a droplet-based single-cell atlas of gene expression in a normal blood vessel. Enzymatic dissociation of 4 whole mouse aortas was followed by single-cell sequencing of >10 000 cells...
July 9, 2019: Circulation
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JOURNAL ARTICLE
Raghuram Badmi, Raja S Payyavula, Garima Bali, Hao-Bo Guo, Sara S Jawdy, Lee E Gunter, Xiaohan Yang, Kimberly A Winkeler, Cassandra Collins, William H Rottmann, Kelsey Yee, Miguel Rodriguez, Robert W Sykes, Stephen R Decker, Mark F Davis, Arthur J Ragauskas, Gerald A Tuskan, Udaya C Kalluri
A greater understanding of biosynthesis, signaling and regulatory pathways involved in determining stem growth and secondary cell wall chemistry is important for enabling pathway engineering and genetic optimization of biomass properties. The present study describes a new functional role of PdIQD10 , a Populus gene belonging to the IQ67-Domain1 family of IQD genes, in impacting biomass formation and chemistry. Expression studies showed that PdIQD10 has enhanced expression in developing xylem and tension-stressed tissues in Populus deltoides ...
2018: Frontiers in Plant Science
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JOURNAL ARTICLE
Meng Xie, Wellington Muchero, Anthony C Bryan, Kelsey Yee, Hao-Bo Guo, Jin Zhang, Timothy J Tschaplinski, Vasanth R Singan, Erika Lindquist, Raja S Payyavula, Jaime Barros-Rios, Richard Dixon, Nancy Engle, Robert W Sykes, Mark Davis, Sara S Jawdy, Lee E Gunter, Olivia Thompson, Stephen P DiFazio, Luke M Evans, Kim Winkeler, Cassandra Collins, Jeremy Schmutz, Hong Guo, Udaya Kalluri, Miguel Rodriguez, Kai Feng, Jin-Gui Chen, Gerald A Tuskan
Long-lived perennial plants, with distinctive habits of inter-annual growth, defense, and physiology, are of great economic and ecological importance. However, some biological mechanisms resulting from genome duplication and functional divergence of genes in these systems remain poorly studied. Here, we discovered an association between a poplar ( Populus trichocarpa) 5-enolpyruvylshikimate 3-phosphate synthase gene ( PtrEPSP ) and lignin biosynthesis. Functional characterization of PtrEPSP revealed that this isoform possesses a helix-turn-helix motif in the N terminus and can function as a transcriptional repressor that regulates expression of genes in the phenylpropanoid pathway in addition to performing its canonical biosynthesis function in the shikimate pathway...
July 2018: Plant Cell
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JOURNAL ARTICLE
Hongfei Zhang, Hari V Kalluri, Jaime R Bastian, Huijun Chen, Ali Alshabi, Steve N Caritis, Raman Venkataramanan
AIMS: Buprenorphine (BUP) is approved by the US Food and Drug Administration for the treatment of opioid addiction. The current dosing regimen of BUP in pregnant women is based on recommendations designed for nonpregnant adults. However, physiological changes during pregnancy may alter BUP exposure and efficacy. The objectives of this study were to develop a physiologically-based pharmacokinetic (PBPK) model for BUP in pregnant women, to predict changes in BUP exposure at different stages of pregnancy, and to demonstrate the utility of PBPK modelling in optimizing BUP pharmacotherapy during pregnancy...
September 2018: British Journal of Clinical Pharmacology
#52
REVIEW
Patrycja Nowak-Sliwinska, Kari Alitalo, Elizabeth Allen, Andrey Anisimov, Alfred C Aplin, Robert Auerbach, Hellmut G Augustin, David O Bates, Judy R van Beijnum, R Hugh F Bender, Gabriele Bergers, Andreas Bikfalvi, Joyce Bischoff, Barbara C Böck, Peter C Brooks, Federico Bussolino, Bertan Cakir, Peter Carmeliet, Daniel Castranova, Anca M Cimpean, Ondine Cleaver, George Coukos, George E Davis, Michele De Palma, Anna Dimberg, Ruud P M Dings, Valentin Djonov, Andrew C Dudley, Neil P Dufton, Sarah-Maria Fendt, Napoleone Ferrara, Marcus Fruttiger, Dai Fukumura, Bart Ghesquière, Yan Gong, Robert J Griffin, Adrian L Harris, Christopher C W Hughes, Nan W Hultgren, M Luisa Iruela-Arispe, Melita Irving, Rakesh K Jain, Raghu Kalluri, Joanna Kalucka, Robert S Kerbel, Jan Kitajewski, Ingeborg Klaassen, Hynda K Kleinmann, Pieter Koolwijk, Elisabeth Kuczynski, Brenda R Kwak, Koen Marien, Juan M Melero-Martin, Lance L Munn, Roberto F Nicosia, Agnes Noel, Jussi Nurro, Anna-Karin Olsson, Tatiana V Petrova, Kristian Pietras, Roberto Pili, Jeffrey W Pollard, Mark J Post, Paul H A Quax, Gabriel A Rabinovich, Marius Raica, Anna M Randi, Domenico Ribatti, Curzio Ruegg, Reinier O Schlingemann, Stefan Schulte-Merker, Lois E H Smith, Jonathan W Song, Steven A Stacker, Jimmy Stalin, Amber N Stratman, Maureen Van de Velde, Victor W M van Hinsbergh, Peter B Vermeulen, Johannes Waltenberger, Brant M Weinstein, Hong Xin, Bahar Yetkin-Arik, Seppo Yla-Herttuala, Mervin C Yoder, Arjan W Griffioen
The formation of new blood vessels, or angiogenesis, is a complex process that plays important roles in growth and development, tissue and organ regeneration, as well as numerous pathological conditions. Angiogenesis undergoes multiple discrete steps that can be individually evaluated and quantified by a large number of bioassays. These independent assessments hold advantages but also have limitations. This article describes in vivo, ex vivo, and in vitro bioassays that are available for the evaluation of angiogenesis and highlights critical aspects that are relevant for their execution and proper interpretation...
May 15, 2018: Angiogenesis
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COMPARATIVE STUDY
Mayela Mendt, Sushrut Kamerkar, Hikaru Sugimoto, Kathleen M McAndrews, Chia-Chin Wu, Mihai Gagea, Sujuan Yang, Elena V Rodriges Blanko, Qian Peng, Xiaoyan Ma, Joseph R Marszalek, Anirban Maitra, Cassian Yee, Katayoun Rezvani, Elizabeth Shpall, Valerie S LeBleu, Raghu Kalluri
Exosomes are extracellular vesicles produced by all cells with a remarkable ability to efficiently transfer genetic material, including exogenously loaded siRNA, to cancer cells. Here, we report on a bioreactor-based, large-scale production of clinical-grade exosomes employing good manufacturing practice (GMP) standards. A standard operating procedure was established to generate engineered exosomes with the ability to target oncogenic Kras (iExosomes). The clinical-grade GMP iExosomes were tested in multiple in vitro and in vivo studies to confirm suppression of oncogenic Kras and an increase in the survival of several mouse models with pancreatic cancer...
April 19, 2018: JCI Insight
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JOURNAL ARTICLE
N M Phani, M Vohra, P Adhikari, S K Nagri, U Shashikiran, S C D'Souza, P R R Kalluri, K Satyamoorthy, P S Rai
BACKGROUND: Several SNPs were identified through GWAS for their association with type 2 diabetes which has implications to pancreatic β-cell physiology. OBJECTIVE: We aimed to study the role of risk alleles of TCF7L2, KCNJ11, CDKN2A, CDKAL1, IGF2BP2, SLC30A8 and KCNQ1 along with pharmacokinetic variants in response to sulfonylureas. METHOD: We performed a prospective study on 209 newly diagnosed subjects; treatment naive T2D subjects were recruited...
2017: Current Molecular Medicine
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JOURNAL ARTICLE
Nguyen T Le, Jhansi R Kalluri, Armando Loni, Leigh T Canham, Jeffery L Coffer
Nanostructured mesoporous silicon (pSi) derived from the silicon-accumulator plant Tabasheer (Bambuseae) is demonstrated to serve as a potential carrier matrix for carrying and stabilizing naturally active, but otherwise metastable, therapeutic agents. Particularly, in this study, garlic oil containing phytochemicals (namely, allicin) that are capable of inhibiting Staphylococcus aureus (S. aureus) bacterial growth were incorporated into Tabasheer-derived porous silicon. Thermogravimetric analysis (TGA) indicated that relatively high amounts of the extract (53...
December 4, 2017: Molecular Pharmaceutics
#56
JOURNAL ARTICLE
E Stein Esser, Joanna A Pulit-Penaloza, Haripriya Kalluri, Devin McAllister, Elena V Vassilieva, Elizabeth Q Littauer, Nadia Lelutiu, Mark R Prausnitz, Richard W Compans, Ioanna Skountzou
Influenza virus causes life-threatening infections in pregnant women and their newborns. Immunization during pregnancy is the most effective means of preventing maternal and infant mortality/morbidity; however, influenza vaccination rates of pregnant women remain under 50%. Furthermore, the availability of vaccines in low-resource populations is limited. Skin immunization with microneedle patches (MN) is a novel and safe vaccination platform featuring thermostable vaccine formulations. Cold-chain independence and the potential for self-administration can expand influenza vaccination coverage in developing countries...
July 18, 2017: Scientific Reports
#57
JOURNAL ARTICLE
An evidence-based recommendation to increase the dosing frequency of buprenorphine during pregnancy.
Steve N Caritis, Jaime R Bastian, Hongfei Zhang, Hari Kalluri, Dennis English, Michael England, Stephanie Bobby, Raman Venkataramanan
BACKGROUND: Dose-adjusted plasma concentrations of buprenorphine are significantly decreased during pregnancy compared with the nonpregnant state. This observation suggests that pregnant women may need a higher dose of buprenorphine than nonpregnant individuals to maintain similar drug exposure (plasma concentrations over time after a dose). The current dosing recommendations for buprenorphine during pregnancy address the total daily dose of buprenorphine to be administered, but the frequency of dosing is not clearly addressed...
October 2017: American Journal of Obstetrics and Gynecology
#58
RANDOMIZED CONTROLLED TRIAL
Nadine G Rouphael, Michele Paine, Regina Mosley, Sebastien Henry, Devin V McAllister, Haripriya Kalluri, Winston Pewin, Paula M Frew, Tianwei Yu, Natalie J Thornburg, Sarah Kabbani, Lilin Lai, Elena V Vassilieva, Ioanna Skountzou, Richard W Compans, Mark J Mulligan, Mark R Prausnitz
BACKGROUND: Microneedle patches provide an alternative to conventional needle-and-syringe immunisation, and potentially offer improved immunogenicity, simplicity, cost-effectiveness, acceptability, and safety. We describe safety, immunogenicity, and acceptability of the first-in-man study on single, dissolvable microneedle patch vaccination against influenza. METHODS: The TIV-MNP 2015 study was a randomised, partly blinded, placebo-controlled, phase 1, clinical trial at Emory University that enrolled non-pregnant, immunocompetent adults from Atlanta, GA, USA, who were aged 18-49 years, naive to the 2014-15 influenza vaccine, and did not have any significant dermatological disorders...
August 12, 2017: Lancet
#59
JOURNAL ARTICLE
Kerri A Johannson, Sachin R Pendharkar, Kirk Mathison, Charlene D Fell, Jordan A Guenette, Meena Kalluri, Martin Kolb, Christopher J Ryerson
Interstitial lung disease (ILD) comprises a large and heterogeneous group of disorders that often lead to progressive fibrosis and premature death. Oxygen supplementation is typically used in patients with advanced lung disease with resting hypoxemia; however, there is a paucity of evidence guiding the use of supplemental oxygen in ILD, and significant heterogeneity in clinical practice. It remains unclear whether supplemental oxygen improves clinically meaningful outcomes, and the role of ambulatory oxygen supplementation in isolated exertional hypoxemia is particularly controversial...
September 2017: Annals of the American Thoracic Society
#60
JOURNAL ARTICLE
Jaya Arya, Sebastien Henry, Haripriya Kalluri, Devin V McAllister, Winston P Pewin, Mark R Prausnitz
To support translation of microneedle patches from pre-clinical development into clinical trials, this study examined the effect of microneedle patch application on local skin reactions, reliability of use and acceptability to patients. Placebo patches containing dissolving microneedles were administered to fifteen human participants. Microneedle patches were well tolerated in the skin with no pain or swelling and only mild erythema localized to the site of patch administration that resolved fully within seven days...
June 2017: Biomaterials
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