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Deblais L, Drozd M, Kumar A, Antwi J, Fuchs J, Khupse R, Helmy YA, Rajashekara G. Identification of novel small molecule inhibitors of twin arginine translocation (Tat) pathway and their effect on the control of Campylobacter jejuni in chickens. Front Microbiol 2024; 15:1342573. [PMID: 38694802 PMCID: PMC11061419 DOI: 10.3389/fmicb.2024.1342573] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 03/08/2024] [Indexed: 05/04/2024] Open
Abstract
Introduction Control of Campylobacter from farm to fork is challenging due to the frequent emergence of antimicrobial-resistant isolates. Furthermore, poultry production systems are known reservoirs of Campylobacter. The twin-arginine translocation (Tat) pathway is a crucial bacterial secretion system that allows Campylobacter to colonize the host intestinal tract by using formate as the main source of energy. However, Tat pathway is also a major contributing factor for resistance to copper sulfate (CuSO4). Methods Since mammals and chickens do not have proteins or receptors that are homologous to bacterial Tat proteins, identification of small molecule (SM) inhibitors targeting the Tat system would allow the development of safe and effective control methods to mitigate Campylobacter in infected or colonized hosts in both pre-harvest and post-harvest. In this study, we screened 11 commercial libraries (n = 50,917 SM) for increased susceptibility to CuSO4 (1 mM) in C. jejuni 81-176, a human isolate which is widely studied. Results Furthermore, we evaluated 177 SM hits (2.5 μg/mL and above) that increased the susceptibility to CuSO4 for the inhibition of formate dehydrogenase (Fdh) activity, a Tat-dependent substrate. Eight Tat-dependent inhibitors (T1-T8) were selected for further studies. These selected eight Tat inhibitors cleared all tested Campylobacter strains (n = 12) at >10 ng/mL in the presence of 0.5 mM CuSO4in vitro. These selected SMs were non-toxic to colon epithelial (Caco-2) cells when treated with 50 μg/mL for 24 h and completely cleared intracellular C. jejuni cells when treated with 0.63 μg/mL of SM for 24 h in the presence of 0.5 mM of CuSO4. Furthermore, 3 and 5-week-old chicks treated with SM candidates for 5 days had significantly decreased cecal colonization (up to 1.2 log; p < 0.01) with minimal disruption of microbiota. In silico analyses predicted that T7 has better drug-like properties than T2 inhibitor and might target a key amino acid residue (glutamine 165), which is located in the hydrophobic core of TatC protein. Discussion Thus, we have identified novel SM inhibitors of the Tat pathway, which represent a potential strategy to control C. jejuni spread on farms.
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Affiliation(s)
- Loïc Deblais
- Department of Animal Sciences, The Ohio State University, OARDC, Wooster, OH, United States
| | - Mary Drozd
- School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Anand Kumar
- Los Alamos National Laboratory, Bioscience Division, Group B-10: Biosecurity and Public Health, Los Alamos, NM, United States
| | - Janet Antwi
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH, United States
| | - James Fuchs
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH, United States
| | - Rahul Khupse
- College of Pharmacy, University of Findlay, OH, United States
| | - Yosra A. Helmy
- Department of Animal Sciences, The Ohio State University, OARDC, Wooster, OH, United States
| | - Gireesh Rajashekara
- Department of Animal Sciences, The Ohio State University, OARDC, Wooster, OH, United States
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Shrestha R, Thenissery A, Khupse R, Rajashekara G. Strategies for the Preparation of Chitosan Derivatives for Antimicrobial, Drug Delivery, and Agricultural Applications: A Review. Molecules 2023; 28:7659. [PMID: 38005381 PMCID: PMC10674490 DOI: 10.3390/molecules28227659] [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: 09/28/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023] Open
Abstract
Chitosan has received much attention for its role in designing and developing novel derivatives as well as its applications across a broad spectrum of biological and physiological activities, owing to its desirable characteristics such as being biodegradable, being a biopolymer, and its overall eco-friendliness. The main objective of this review is to explore the recent chemical modifications of chitosan that have been achieved through various synthetic methods. These chitosan derivatives are categorized based on their synthetic pathways or the presence of common functional groups, which include alkylated, acylated, Schiff base, quaternary ammonia, guanidine, and heterocyclic rings. We have also described the recent applications of chitosan and its derivatives, along with nanomaterials, their mechanisms, and prospective challenges, especially in areas such as antimicrobial activities, targeted drug delivery for various diseases, and plant agricultural domains. The accumulation of these recent findings has the potential to offer insight not only into innovative approaches for the preparation of chitosan derivatives but also into their diverse applications. These insights may spark novel ideas for drug development or drug carriers, particularly in the antimicrobial, medicinal, and plant agricultural fields.
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Affiliation(s)
- Rajeev Shrestha
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, Wooster, OH 44691, USA;
| | - Anusree Thenissery
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, Wooster, OH 44691, USA;
| | - Rahul Khupse
- College of Pharmacy, University of Findlay, Findlay, OH 45840, USA;
| | - Gireesh Rajashekara
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, Wooster, OH 44691, USA;
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Balaji S, Neupane R, Malla S, Khupse R, Amawi H, Kumari S, Tukaramrao DB, Chattopadhyay S, Ashby CR, Boddu SHS, Karthikeyan C, Trivedi P, Raman D, Tiwari AK. IND-2, a Quinoline Derivative, Inhibits the Proliferation of Prostate Cancer Cells by Inducing Oxidative Stress, Apoptosis and Inhibiting Topoisomerase II. Life (Basel) 2022; 12:life12111879. [PMID: 36431014 PMCID: PMC9693996 DOI: 10.3390/life12111879] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/02/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022]
Abstract
In men, prostate cancer (PC) is the most frequently diagnosed cancer, causing an estimated 375,000 deaths globally. Currently, existing therapies for the treatment of PC, notably metastatic cases, have limited efficacy due to drug resistance and problematic adverse effects. Therefore, it is imperative to discover and develop novel drugs for treating PC that are efficacious and do not produce intolerable adverse or toxic effects. Condensed quinolines are naturally occurring anticancer compounds. In this study, we determined the in vitro efficacy of IND-2 (4-chloro-2-methylpyrimido[1″,2″:1,5]pyrazolo[3,4-b]quinolone) in the PC lines, PC-3 and DU-145. IND-2 significantly inhibited the proliferation of PC-3 and DU-145, with IC50 values of 3 µM and 3.5 µM, respectively. The incubation of PC-3 cells with 5 and 10 µM of IND-2 caused the loss of the mitochondrial membrane potential in PC-3 cells. Furthermore, IND-2, at 5 µM, increased the expression of cleaved caspase-3, cleaved caspase-7 and cleaved poly (ADP-ribose) polymerase (PARP). The incubation of PC-3 cells with 5 µM of IND-2 significantly decreased the expression of the apoptotic protein, B-cell lymphoma 2 (Bcl-2). Furthermore, 5 and 10 µM of IND-2 produced morphological changes in PC-3 cells characteristic of apoptosis. Interestingly, IND-2 (2.5, 5 and 10 µM) also induced mitotic catastrophe in PC-3 cells, characterized by the accumulation of multinuclei. The incubation of DU-145 cells with 1.25 and 5 μM of IND-2 significantly increased the levels of reactive oxygen species (ROS). Finally, IND-2, at 10 μM, inhibited the catalytic activity of topoisomerase IIα. Overall, our findings suggest that IND-2 could be a potential lead compound for the development of more efficacious compounds for the treatment of PC.
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Affiliation(s)
- Swapnaa Balaji
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy & Pharmaceutical Sciences, University of Toledo, Toledo, OH 43614, USA
| | - Rabin Neupane
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy & Pharmaceutical Sciences, University of Toledo, Toledo, OH 43614, USA
| | - Saloni Malla
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy & Pharmaceutical Sciences, University of Toledo, Toledo, OH 43614, USA
| | - Rahul Khupse
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Findlay, Findlay, OH 43551, USA
| | - Haneen Amawi
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy & Pharmaceutical Sciences, University of Toledo, Toledo, OH 43614, USA
- Department of Pharmacy Practice, Faculty of Pharmacy, Yarmouk University, P.O. Box 566, Irbid 21163, Jordan
| | - Shikha Kumari
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy & Pharmaceutical Sciences, University of Toledo, Toledo, OH 43614, USA
| | - Diwakar Bastihalli Tukaramrao
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy & Pharmaceutical Sciences, University of Toledo, Toledo, OH 43614, USA
| | - Srestha Chattopadhyay
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy & Pharmaceutical Sciences, University of Toledo, Toledo, OH 43614, USA
| | - Charles R. Ashby
- Department of Pharmaceutical Sciences, College of Pharmacy & Pharmaceutical Sciences, St. John’s University, New York, NY 11432, USA
| | - Sai H. S. Boddu
- College of Pharmacy and Health Sciences, Ajman University, Ajman P.O. Box 346, United Arab Emirates
- Centre of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman P.O. Box 346, United Arab Emirates
| | - Chandrabose Karthikeyan
- Department of Pharmacy, Indira Gandhi National Tribal University, Lalpur, Amarkantak 484887, Madhya Pradesh, India
| | - Piyush Trivedi
- Center for Innovation and Translational Research, Poona College of Pharmacy, Bharati Vidyapeeth, Pune 411038, Maharashtra, India
| | - Dayanidhi Raman
- Department of Cancer Biology, College of Medicine and Life Sciences, University of Toledo, Toledo, OH 43614, USA
| | - Amit K. Tiwari
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy & Pharmaceutical Sciences, University of Toledo, Toledo, OH 43614, USA
- Centre of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman P.O. Box 346, United Arab Emirates
- Department of Cancer Biology, College of Medicine and Life Sciences, University of Toledo, Toledo, OH 43614, USA
- Correspondence: ; Tel.: +1-419-383-1913
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Patel JR, Thangavelu P, Terrell RM, Israel B, Sarkar AB, Davidson AM, Zhang K, Khupse R, Tilghman SL. A Novel Allosteric Inhibitor Targets PLK1 in Triple Negative Breast Cancer Cells. Biomolecules 2022; 12:531. [PMID: 35454120 PMCID: PMC9024838 DOI: 10.3390/biom12040531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 03/28/2022] [Accepted: 03/29/2022] [Indexed: 01/02/2023] Open
Abstract
While Polo-like kinase 1 (PLK1) inhibitors have shown promise in clinical settings for treating triple-negative breast cancer tumors and other solid tumors, they are limited by their ability to bind non-selectively to the ATP kinase domain. Therefore, we sought to develop a PLK1 allosteric inhibitor targeting the PLK1 T-loop (a switch responsible for activation) and evaluate its effects in triple-negative breast cancer cells. A novel compound, RK-10, was developed based on an in silico model, and its effects on specificity, viability, migration, and cell cycle regulation in MCF-10A and MDA-MB 231 cells were evaluated. When MDA-MB 231 cells were treated with 0−50 µg/mL RK-10, phospho-PLK1 (Thr-210) was decreased in cells cultured adherently and cells cultured as mammospheres. RK-10 significantly inhibited viability after 24 h; however, by 48 h, 25−50 µM RK-10 caused >50% reduction. RK-10 attenuated wound healing by up to 99.7% and caused S and G2/M cell cycle arrest, which was associated with increased p21 expression. We developed a novel allosteric inhibitor which mediates anti-proliferative and anti-migratory properties through targeting phospho-PLK1 (Thr-210) in mammospheres and causing S phase and G2/M cell cycle arrest. Further development of PLK1 allosteric inhibitors may be a promising approach for TNBC treatment.
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Affiliation(s)
- Jankiben R. Patel
- Division of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Institutes of Public Health, Florida A&M University, 1415 S. Martin L. King Jr. Blvd, Tallahassee, FL 32307, USA; (J.R.P.); (R.M.T.); (B.I.); (A.M.D.)
| | - Prasad Thangavelu
- College of Pharmacy, University of Findlay, 1000 N Main St., Findlay, OH 45840, USA; (P.T.); (A.B.S.)
| | - Renee M. Terrell
- Division of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Institutes of Public Health, Florida A&M University, 1415 S. Martin L. King Jr. Blvd, Tallahassee, FL 32307, USA; (J.R.P.); (R.M.T.); (B.I.); (A.M.D.)
| | - Bridg’ette Israel
- Division of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Institutes of Public Health, Florida A&M University, 1415 S. Martin L. King Jr. Blvd, Tallahassee, FL 32307, USA; (J.R.P.); (R.M.T.); (B.I.); (A.M.D.)
| | - Arindam Basu Sarkar
- College of Pharmacy, University of Findlay, 1000 N Main St., Findlay, OH 45840, USA; (P.T.); (A.B.S.)
| | - A. Michael Davidson
- Division of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Institutes of Public Health, Florida A&M University, 1415 S. Martin L. King Jr. Blvd, Tallahassee, FL 32307, USA; (J.R.P.); (R.M.T.); (B.I.); (A.M.D.)
| | - Kun Zhang
- Department of Computer Science, Division of Mathematical and Physical Sciences, College of Arts and Sciences, Xavier University of Louisiana, New Orleans, LA 70125, USA;
| | - Rahul Khupse
- College of Pharmacy, University of Findlay, 1000 N Main St., Findlay, OH 45840, USA; (P.T.); (A.B.S.)
| | - Syreeta L. Tilghman
- Division of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Institutes of Public Health, Florida A&M University, 1415 S. Martin L. King Jr. Blvd, Tallahassee, FL 32307, USA; (J.R.P.); (R.M.T.); (B.I.); (A.M.D.)
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Walker RR, Patel JR, Gupta A, Davidson AM, Williams CC, Payton-Stewart F, Boué SM, Burow ME, Khupse R, Tilghman SL. Glyceollins Trigger Anti-Proliferative Effects in Hormone-Dependent Aromatase-Inhibitor-Resistant Breast Cancer Cells through the Induction of Apoptosis. Int J Mol Sci 2022; 23:2887. [PMID: 35270029 PMCID: PMC8911299 DOI: 10.3390/ijms23052887] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/01/2022] [Accepted: 03/03/2022] [Indexed: 11/16/2022] Open
Abstract
Aromatase inhibitors (AIs) are standard treatment for estrogen-dependent postmenopausal breast tumors; however, resistance develops leading to tumor relapse and metastasis. We previously demonstrated that glyceollin inhibits proliferation, survival, and migration of hormone-independent letrozole-resistant breast cancer. Since many AI-resistant tumors remain hormone-dependent, identifying distinctions between estrogen-receptor-positive (ER+) and ER-negative (ER-) AI-resistant tumor response to therapy is critical. We hypothesize that treating ER+ letrozole-resistant T47D breast cancer cells (T47DaromLR) with a combination of 10 μM glyceollin and 0.5 μM lapatinib (a dual EGFR/HER2 inhibitor) will decrease cell proliferation through induction of apoptosis. The T47DaromLR cells were found to overexpress HER2 and MAPK while maintaining aromatase and ER levels compared to their letrozole-sensitive (T47Darom) counterparts. In the absence of estrogen stimulation, glyceollin ± lapatinib had no effect on the proliferation of the T47Darom cells, while glyceollin treatment caused 46% reduction in the proliferation of T47DaromLR cells, which was further diminished when combined with lapatinib. While neither agent influenced cell migration, glyceollin and lapatinib reduced S and G2/M phase cell entry and exclusively induced apoptosis by 1.29-fold in the T47DaromLR cells. Taken together, these results suggest that glyceollins and lapatinib may have potential as a novel combination therapeutic approach for hormone-dependent, letrozole-resistant tumors.
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Affiliation(s)
- Rashidra R. Walker
- Division of Basic Sciences, College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, 1415 S. Martin L. King Jr. Blvd., Tallahassee, FL 32307, USA; (R.R.W.); (J.R.P.); (A.M.D.)
| | - Jankiben R. Patel
- Division of Basic Sciences, College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, 1415 S. Martin L. King Jr. Blvd., Tallahassee, FL 32307, USA; (R.R.W.); (J.R.P.); (A.M.D.)
| | - Akash Gupta
- Department of Medicine, University of Arizona, 1500 N. Campbell Ave., Tucson, AZ 85724, USA;
| | - A. Michael Davidson
- Division of Basic Sciences, College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, 1415 S. Martin L. King Jr. Blvd., Tallahassee, FL 32307, USA; (R.R.W.); (J.R.P.); (A.M.D.)
| | - Christopher C. Williams
- Division of Basic Sciences, College of Pharmacy, Xavier University of Louisiana, 1 Drexel Dr., New Orleans, LA 70125, USA;
| | - Florastina Payton-Stewart
- Division of Mathematics and Physical Sciences, College of Arts and Sciences, Xavier University of Louisiana, 1 Drexel Dr., New Orleans, LA 70125, USA;
| | - Stephen M. Boué
- Southern Regional Research Center, United States Department of Agriculture, Agricultural Research Service, 1100 Robert E. Lee Blvd., New Orleans, LA 70124, USA;
| | - Matthew E. Burow
- Section of Hematology and Medical Oncology, School of Medicine, Tulane University, New Orleans, LA 70112, USA;
| | - Rahul Khupse
- College of Pharmacy, The University of Findlay, 1000 N. Main St., Findlay, OH 45840, USA;
| | - Syreeta L. Tilghman
- Division of Basic Sciences, College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, 1415 S. Martin L. King Jr. Blvd., Tallahassee, FL 32307, USA; (R.R.W.); (J.R.P.); (A.M.D.)
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Kathayat D, Helmy YA, Deblais L, Srivastava V, Closs G, Khupse R, Rajashekara G. Novel Small Molecule Growth Inhibitor Affecting Bacterial Outer Membrane Reduces Extraintestinal Pathogenic Escherichia coli (ExPEC) Infection in Avian Model. Microbiol Spectr 2021; 9:e0000621. [PMID: 34468186 PMCID: PMC8557866 DOI: 10.1128/spectrum.00006-21] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 08/06/2021] [Indexed: 12/26/2022] Open
Abstract
Avian pathogenic Escherichia coli (APEC), a subgroup of extraintestinal pathogenic E. coli (ExPEC), causes colibacillosis in chickens and is reportedly implicated in urinary tract infections and meningitis in humans. A major limitation for the current ExPEC antibiotic therapy is the development of resistance, and antibacterial drugs that can circumvent this problem are critically needed. Here, we evaluated eight novel membrane-affecting anti-APEC small molecule growth inhibitors (GIs), identified in our previous study, against APEC infection in chickens. Among the GIs tested, GI-7 (the most effective), when administered orally (1 mg/kg of body weight), reduced the mortality (41.7%), severity of lesions (62.9%), and APEC load (2.6 log) in chickens. Furthermore, GI-7 administration at an optimized dose (60 mg/liter) in drinking water also reduced the mortality (14.7%), severity of lesions (29.5%), and APEC load (2.2 log) in chickens. The abundances of Lactobacillus and oleate were increased in the cecum and serum, respectively, of GI-7-treated chickens. Pharmacokinetic analysis revealed that GI-7 was readily absorbed with minimal accumulation in the tissues. Earlier, we showed that GI-7 induced membrane blebbing and increased membrane permeability in APEC, suggesting an effect on the APEC membrane. Consistent with this finding, the expression of genes essential for maintaining outer membrane (OM) integrity was downregulated in GI-7-treated APEC. Furthermore, decreased levels of lipopolysaccharide (LPS) transport (Lpt) proteins and LPS were observed in GI-7-treated APEC. However, the mechanism of action of GI-7 currently remains unknown and needs further investigation. Our studies suggest that GI-7 represents a promising novel lead compound that can be developed to treat APEC infection in chickens and related human ExPEC infections. IMPORTANCE APEC is a subgroup of ExPEC, and genetic similarities of APEC with human ExPECs, including uropathogenic E. coli (UPEC) and neonatal meningitis E. coli (NMEC), have been reported. Our study identified a novel small molecule growth inhibitor, GI-7, effective in reducing APEC infection in chickens with an efficacy similar to that of the currently used antibiotic sulfadimethoxine, notably with an 8-times-lower dose. GI-7 affects the OM integrity and decreases the Lpt protein and LPS levels in APEC, an antibacterial mechanism that can overcome the antibiotic resistance problem. Overall, GI-7 represents a promising lead molecule/scaffold for the development of novel antibacterial therapies that could have profound implications for treating APEC infections in chickens, as well as human infections caused by ExPECs and other related Gram-negative bacteria. Further elucidation of the mechanism of action of GI-7 and identification of its target(s) in APEC will benefit future novel antibacterial development efforts.
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Affiliation(s)
- Dipak Kathayat
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, Wooster, Ohio, USA
| | - Yosra A. Helmy
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, Wooster, Ohio, USA
| | - Loic Deblais
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, Wooster, Ohio, USA
| | - Vishal Srivastava
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, Wooster, Ohio, USA
| | - Gary Closs
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, Wooster, Ohio, USA
| | - Rahul Khupse
- College of Pharmacy, University of Findlay, Findlay, Ohio, USA
| | - Gireesh Rajashekara
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, Wooster, Ohio, USA
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Inbody L, Hollenbacher C, Hickey M, Harris K, Mozes J, Copus T, Khupse R, Schneider R. Investigation of Methuosis in Glioblastoma Cell Lines in Response to Treatment with Novel Chalcones. FASEB J 2021. [DOI: 10.1096/fasebj.2021.35.s1.04377] [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)
- Laura Inbody
- Department of Pharmaceutical SciencesUniversity of Findlay, College of PharmacyFindlayOH
| | - Courtney Hollenbacher
- Department of Pharmaceutical SciencesUniversity of Findlay, College of PharmacyFindlayOH
| | - Mikaela Hickey
- Department of Pharmaceutical SciencesUniversity of Findlay, College of PharmacyFindlayOH
| | - Katelyn Harris
- Department of Pharmaceutical SciencesUniversity of Findlay, College of PharmacyFindlayOH
| | - Julia Mozes
- Department of Pharmaceutical SciencesUniversity of Findlay, College of PharmacyFindlayOH
| | - Tyler Copus
- Department of Pharmaceutical SciencesUniversity of Findlay, College of PharmacyFindlayOH
| | - Rahul Khupse
- Department of Pharmaceutical SciencesUniversity of Findlay, College of PharmacyFindlayOH
| | - Ryan Schneider
- Department of Pharmaceutical SciencesUniversity of Findlay, College of PharmacyFindlayOH
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Dahal A, Neupane R, Boddu SH, Renukuntla J, Khupse R, Dudley R. Percutaneous Absorption of Lorazepam, Diphenhydramine Hydrochloride, and Haloperidol from ABH Gel. Int J Pharm Compd 2020; 24:168-175. [PMID: 32196480] [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: 06/10/2023]
Abstract
The objective of this project was to study the percutaneous absorption of lorazepam, diphenhydramine hydrochloride, and haloperidol from a topical Pluronic lecithin organogel, also known as ABH gel, across the porcine ear skin and verify its suitability for topical application. ABH gel was prepared using lecithin in isopropyl palmitate solution (1:1) as an oil phase and 20% w/v Poloxamer 407 solution as an aqueous phase. The gel was characterized for pH, viscosity, drug content, and thermal behavior. A robust high-performance liquid chromatography method was developed and validated for simultaneous analysis of lorazepam, diphenhydramine hydrochloride, and haloperidol. The percutaneous absorption of lorazepam, diphenhydramine hydrochloride, and haloperidol from ABH gel was carried out using Franz cells across the Strat-M membrane and pig ear skin. The pH of ABH gel was found to be 5.66 ± 0.13. The retention time of diphenhydramine hydrochloride, haloperidol, and lorazepam was found to be 5.2 minutes, 7.8 minutes, and 18.9 minutes, respectively. The ABH gel was found to be stable for up to 30 days. Theoretical steady state plasma concentrations (CSS) of diphenhydramine hydrochloride, haloperidol, and lorazepam calculated from flux values were found to be 1.6 ng/mL, 0.13 ng/mL, and 2.30 ng/mL, respectively. The theoretical CSS of diphenhydramine hydrochloride, haloperidol, and lorazepam were much lower than required therapeutic concentrations for antiemetic activity to relieve chemotherapy-induced nausea and vomiting. From the percutaneous absorption data, it was evident that ABH gel failed to achieve required systemic levels of lorazepam, diphenhydramine hydrochloride, and haloperidol following topical application.
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Affiliation(s)
- Amit Dahal
- College of Pharmacy and Pharmaceutical Sciences, The University of Toledo Health Science Campus, Toledo, Ohio
| | - Rabin Neupane
- College of Pharmacy and Pharmaceutical Sciences, The University of Toledo Health Science Campus, Toledo, Ohio
| | - Sai Hs Boddu
- College of Pharmacy and Pharmaceutical Sciences, The University of Toledo Health Science Campus, Toledo, Ohio
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Ajman University, Ajman, United Arab Emirates
| | - Jwala Renukuntla
- School of Pharmacy, The University of Texas at El Paso, El Paso, Texas
| | - Rahul Khupse
- College of Pharmacy, The University of Findlay, Findlay, Ohio
| | - Richard Dudley
- College of Pharmacy, The University of Findlay, Findlay, Ohio
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Whited T, Adams B, Stang C, Pierson T, Khupse R, Dudley R, Schneider R. Novel Chalcone Derivatives Show Anti‐Cancer Effects in Several Human Cancer Cell Lines. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.926.15] [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)
- Tawna Whited
- Dept. of Pharmaceutical SciencesCollege of Pharmacy The University of FindlayFindlayOHUnited States
| | - Bryce Adams
- Dept. of Pharmaceutical SciencesCollege of Pharmacy The University of FindlayFindlayOHUnited States
| | - Christopher Stang
- Dept. of Pharmaceutical SciencesCollege of Pharmacy The University of FindlayFindlayOHUnited States
| | - Thomas Pierson
- Dept. of Pharmaceutical SciencesCollege of Pharmacy The University of FindlayFindlayOHUnited States
| | - Rahul Khupse
- Dept. of Pharmaceutical SciencesCollege of Pharmacy The University of FindlayFindlayOHUnited States
| | - Richard Dudley
- Dept. of Pharmaceutical SciencesCollege of Pharmacy The University of FindlayFindlayOHUnited States
| | - Ryan Schneider
- Dept. of Pharmaceutical SciencesCollege of Pharmacy The University of FindlayFindlayOHUnited States
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