1
|
Eygeris Y, Gupta M, Kim J, Jozic A, Gautam M, Renner J, Nelson D, Bloom E, Tuttle A, Stoddard J, Reynaga R, Neuringer M, Lauer AK, Ryals RC, Sahay G. Thiophene-based lipids for mRNA delivery to pulmonary and retinal tissues. Proc Natl Acad Sci U S A 2024; 121:e2307813120. [PMID: 38437570 PMCID: PMC10945828 DOI: 10.1073/pnas.2307813120] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 05/31/2023] [Accepted: 09/16/2023] [Indexed: 03/06/2024] Open
Abstract
Lipid nanoparticles (LNPs) largely rely on ionizable lipids to yield successful nucleic acid delivery via electrostatic disruption of the endosomal membrane. Here, we report the identification and evaluation of ionizable lipids containing a thiophene moiety (Thio-lipids). The Thio-lipids can be readily synthesized via the Gewald reaction, allowing for modular lipid design with functional constituents at various positions of the thiophene ring. Through the rational design of ionizable lipid structure, we prepared 47 Thio-lipids and identified some structural criteria required in Thio-lipids for efficient mRNA (messenger RNA) encapsulation and delivery in vitro and in vivo. Notably, none of the tested lipids have a pH-response profile like traditional ionizable lipids, potentially due to the electron delocalization in the thiophene core. Placement of the tails and localization of the ionizable headgroup in the thiophene core can endow the nanoparticles with the capability to reach various tissues. Using high-throughput formulation and barcoding techniques, we optimized the formulations to select two top lipids-20b and 29d-and investigated their biodistribution in mice. Lipid 20b enabled LNPs to transfect the liver and spleen, and 29d LNP transfected the lung and spleen. Unexpectedly, LNP with lipid 20b was especially potent in mRNA delivery to the retina with no acute toxicity, leading to the successful delivery to the photoreceptors and retinal pigment epithelium in non-human primates.
Collapse
Affiliation(s)
- Yulia Eygeris
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR97201
- EnterX Biosciences, Inc., Portland, OR97214
| | - Mohit Gupta
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR97201
| | - Jeonghwan Kim
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR97201
- College of Pharmacy, Yeungnam University, Gyeongsan38541, Republic of Korea
| | - Antony Jozic
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR97201
| | - Milan Gautam
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR97201
| | - Jonas Renner
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR97201
| | - Dylan Nelson
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR97201
- EnterX Biosciences, Inc., Portland, OR97214
| | - Elissa Bloom
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR97201
| | | | - Jonathan Stoddard
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR97006
| | - Rene Reynaga
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR97006
| | - Martha Neuringer
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR97006
- Department of Ophthalmology, Casey Eye Institute, Oregon Health and Science University, Portland, OR97239
| | - Andreas K. Lauer
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR97006
- Department of Ophthalmology, Casey Eye Institute, Oregon Health and Science University, Portland, OR97239
| | - Renee C. Ryals
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR97006
- Department of Ophthalmology, Casey Eye Institute, Oregon Health and Science University, Portland, OR97239
| | - Gaurav Sahay
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR97201
- Department of Ophthalmology, Casey Eye Institute, Oregon Health and Science University, Portland, OR97239
- Department of Biomedical Engineering, Oregon Health and Science University, Portland, OR97201
| |
Collapse
|
2
|
Gautam M, Hammell KL, Burnley H, O'Brien N, Whelan D, Thakur KK. Description of spatiotemporal patterns of infectious salmon anemia virus (ISAV) detections in marine Atlantic Salmon farms in Newfoundland and Labrador. J Aquat Anim Health 2023; 35:296-307. [PMID: 38124493 DOI: 10.1002/aah.10205] [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] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 09/23/2023] [Accepted: 09/25/2023] [Indexed: 12/23/2023]
Abstract
OBJECTIVE The objectives of this study were to describe spatiotemporal patterns of infectious salmon anemia virus (ISAV) detections in marine salmonid production sites in the province of Newfoundland and Labrador in Canada. METHODS Infectious salmon anemia virus surveillance data between 2012 and 2020 from the province of Newfoundland and Labrador were used. Data comprised a total of 94 sampling events from 20 Atlantic Salmon Salmo salar production sites in which ISAV was detected. Using linear regression models, factors influencing time to detection (days from stocking to first ISAV detection) and time to depopulation (days from first detection to production site depopulation) were investigated. RESULT Based on 28 unique cases, site-level annual incidence risk of ISAV detection ranged from 3% to 29%. The proportion of ISAV detection by PCR in fish samples ranged from 2% to 45% annually. Overall, ISAV variants from the European clade were more common than variants from the North American clade. The type of ISAV clade, detections of ISAV in nearest production sites based on seaway distances, and year of infectious salmon anemia cases were not associated with time to first ISAV detection. Time to depopulation for sites infected with the ISAV-HPRΔ variant was not associated with ISAV North American or European clades. CONCLUSION Our results contribute to the further understanding of the changing dynamics of infectious salmon anemia detections in Newfoundland and Labrador since its first detection in 2012 and will likely assist in the design of improved disease surveillance and control programs in the province.
Collapse
Affiliation(s)
- Milan Gautam
- Centre for Veterinary Epidemiological Research and Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada
| | - K Larry Hammell
- Centre for Veterinary Epidemiological Research and Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada
| | - Holly Burnley
- Centre for Veterinary Epidemiological Research and Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada
| | - Nicole O'Brien
- Department of Fisheries, Forestry and Agriculture, Aquatic Animal Health Division, St. John's, Newfoundland and Labrador, Canada
| | - Daryl Whelan
- Department of Fisheries, Forestry and Agriculture, Aquatic Animal Health Division, St. John's, Newfoundland and Labrador, Canada
| | - Krishna Kumar Thakur
- Centre for Veterinary Epidemiological Research and Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada
| |
Collapse
|
3
|
Gautam M, Jozic A, Su GLN, Herrera-Barrera M, Curtis A, Arrizabalaga S, Tschetter W, Ryals RC, Sahay G. Lipid nanoparticles with PEG-variant surface modifications mediate genome editing in the mouse retina. Nat Commun 2023; 14:6468. [PMID: 37833442 PMCID: PMC10575971 DOI: 10.1038/s41467-023-42189-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 03/04/2023] [Accepted: 09/29/2023] [Indexed: 10/15/2023] Open
Abstract
Ocular delivery of lipid nanoparticle (LNPs) packaged mRNA can enable efficient gene delivery and editing. We generated LNP variants through the inclusion of positively charged-amine-modified polyethylene glycol (PEG)-lipids (LNPa), negatively charged-carboxyl-(LNPz) and carboxy-ester (LNPx) modified PEG-lipids, and neutral unmodified PEG-lipids (LNP). Subretinal injections of LNPa containing Cre mRNA in the mouse show tdTomato signal in the retinal pigmented epithelium (RPE) like conventional LNPs. Unexpectedly, LNPx and LNPz show 27% and 16% photoreceptor transfection, respectively, with striking localization extending from the photoreceptor synaptic pedicle to the outer segments, displaying pan-retinal distribution in the photoreceptors and RPE. LNPx containing Cas9 mRNA and sgAi9 leads to the formation of an oval elongated structure with a neutral charge resulting in 16.4% editing restricted to RPE. Surface modifications of LNPs with PEG variants can alter cellular tropism of mRNA. LNPs enable genome editing in the retina and in the future can be used to correct genetic mutations that lead to blindness.
Collapse
Affiliation(s)
- Milan Gautam
- Department of Pharmaceutical Sciences, College of Pharmacy, Robertson Life Sciences Building, Oregon State University, Portland, OR, 97201, USA
| | - Antony Jozic
- Department of Pharmaceutical Sciences, College of Pharmacy, Robertson Life Sciences Building, Oregon State University, Portland, OR, 97201, USA
| | - Grace Li-Na Su
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Marco Herrera-Barrera
- Department of Pharmaceutical Sciences, College of Pharmacy, Robertson Life Sciences Building, Oregon State University, Portland, OR, 97201, USA
| | - Allison Curtis
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Sebastian Arrizabalaga
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Wayne Tschetter
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Renee C Ryals
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, OR, 97239, USA.
| | - Gaurav Sahay
- Department of Pharmaceutical Sciences, College of Pharmacy, Robertson Life Sciences Building, Oregon State University, Portland, OR, 97201, USA.
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, OR, 97239, USA.
- Department of Biomedical Engineering, Robertson Life Sciences Building, Oregon Health & Science University, Portland, OR, 97201, USA.
| |
Collapse
|
4
|
Palumbo MC, Gautam M, Sonneborn A, Kim K, Wilmarth PA, Reddy AP, Shi X, Marks DL, Sahay G, Abbas AI, Janowsky A. MicroRNA137-loaded lipid nanoparticles regulate synaptic proteins in the prefrontal cortex. Mol Ther 2023; 31:2975-2990. [PMID: 37644723 PMCID: PMC10556225 DOI: 10.1016/j.ymthe.2023.08.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 04/27/2023] [Revised: 06/20/2023] [Accepted: 08/24/2023] [Indexed: 08/31/2023] Open
Abstract
Genome-wide association studies indicate that allele variants in MIR137, the host gene of microRNA137 (miR137), confer an increased risk of schizophrenia (SCZ). Aberrant expression of miR137 and its targets, many of which regulate synaptic functioning, are also associated with an increased risk of SCZ. Thus, miR137 represents an attractive target aimed at correcting the molecular basis for synaptic dysfunction in individuals with high genetic risk for SCZ. Advancements in nanotechnology utilize lipid nanoparticles (LNPs) to transport and deliver therapeutic RNA. However, there remains a gap in using LNPs to regulate gene and protein expression in the brain. To study the delivery of nucleic acids by LNPs to the brain, we found that LNPs released miR137 cargo and inhibited target transcripts of interest in neuroblastoma cells. Biodistribution of LNPs loaded with firefly luciferase mRNA remained localized to the mouse prefrontal cortex (PFC) injection site without circulating to off-target organs. LNPs encapsulating Cre mRNA preferentially co-expressed in neuronal over microglial or astrocytic cells. Using quantitative proteomics, we found miR137 modulated glutamatergic synaptic protein networks that are commonly dysregulated in SCZ. These studies support engineering the next generation of brain-specific LNPs to deliver RNA therapeutics and improve symptoms of central nervous system disorders.
Collapse
Affiliation(s)
- Michelle C Palumbo
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR 97239, USA
| | - Milan Gautam
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR 97331, USA
| | - Alex Sonneborn
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR 97239, USA
| | - Kilsun Kim
- Proteomics Shared Resource, Oregon Health & Science University, Portland, OR 97239, USA
| | - Phillip A Wilmarth
- Proteomics Shared Resource, Oregon Health & Science University, Portland, OR 97239, USA
| | - Ashok P Reddy
- Proteomics Shared Resource, Oregon Health & Science University, Portland, OR 97239, USA
| | - Xiao Shi
- Department of Psychiatry, Oregon Health & Science University, Portland, OR 97239, USA
| | - Daniel L Marks
- Department of Pediatrics, Papé Family Pediatric Research Institute, Oregon Health & Science University, Portland, Portland, OR 97239, USA
| | - Gaurav Sahay
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR 97331, USA; Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239, USA
| | - Atheir I Abbas
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR 97239, USA; Department of Psychiatry, Oregon Health & Science University, Portland, OR 97239, USA; Research Service, Veterans Affairs Portland Health Care System, Portland, OR 97239, USA
| | - Aaron Janowsky
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR 97239, USA; Department of Psychiatry, Oregon Health & Science University, Portland, OR 97239, USA; Research Service, Veterans Affairs Portland Health Care System, Portland, OR 97239, USA.
| |
Collapse
|
5
|
Herrera-Barrera M, Gautam M, Lokras A, Vlasova K, Foged C, Sahay G. Lipid Nanoparticle-Enabled Intracellular Delivery of Prime Editors. AAPS J 2023; 25:65. [PMID: 37380935 DOI: 10.1208/s12248-023-00833-2] [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: 04/29/2023] [Accepted: 06/08/2023] [Indexed: 06/30/2023] Open
Abstract
Prime editing is an advanced gene editing platform with potential to correct almost any disease-causing mutation. As genome editors have evolved, their size and complexity have increased, hindering delivery technologies with low-carrying capacity and endosomal escape. We formulated an array of lipid nanoparticles (LNPs) containing prime editors (PEs). We were able to encapsulate PEs in LNPs and confirmed the presence of PE mRNA and two different guide RNAs using HPLC. In addition, we developed a novel reporter cell line for rapid identification of LNPs suited for prime editing. A 54% prime editing rate was observed with enhanced LNPs (eLNPs) containing the cholesterol analog β-sitosterol at optimal ratios of RNA cargoes. eLNPs displayed a polyhedral morphology and a more fluid membrane state that led to improved endosomal escape, eventually causing onset of editing within 9 h and reaching maximum efficiency after 24 h. Hence, PEs delivered using LNPs can propel a new wave of therapies for many additional targets potentially enabling a range of new applications.
Collapse
Affiliation(s)
- Marco Herrera-Barrera
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, Oregon, 97201, USA
| | - Milan Gautam
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, Oregon, 97201, USA
| | - Abhijeet Lokras
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2100, Copenhagen Ø, Denmark
| | - Kseniia Vlasova
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, Oregon, 97201, USA
| | - Camilla Foged
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2100, Copenhagen Ø, Denmark
| | - Gaurav Sahay
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, Oregon, 97201, USA.
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, 97239, USA.
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon, 97201, USA.
| |
Collapse
|
6
|
Affiliation(s)
- M Gautam
- Mayo Clinic, Rochester, Minnesota
| | - A Sharma
- Medical College of Georgia, Augusta, Georgia.
| |
Collapse
|
7
|
Herrera-Barrera M, Ryals RC, Gautam M, Jozic A, Landry M, Korzun T, Gupta M, Acosta C, Stoddard J, Reynaga R, Tschetter W, Jacomino N, Taratula O, Sun C, Lauer AK, Neuringer M, Sahay G. Peptide-guided lipid nanoparticles deliver mRNA to the neural retina of rodents and nonhuman primates. Sci Adv 2023; 9:eadd4623. [PMID: 36630502 PMCID: PMC9833661 DOI: 10.1126/sciadv.add4623] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Lipid nanoparticle (LNP)-based mRNA delivery holds promise for the treatment of inherited retinal degenerations. Currently, LNP-mediated mRNA delivery is restricted to the retinal pigment epithelium (RPE) and Müller glia. LNPs must overcome ocular barriers to transfect neuronal cells critical for visual phototransduction, the photoreceptors (PRs). We used a combinatorial M13 bacteriophage-based heptameric peptide phage display library for the mining of peptide ligands that target PRs. We identified the most promising peptide candidates resulting from in vivo biopanning. Dye-conjugated peptides showed rapid localization to the PRs. LNPs decorated with the top-performing peptide ligands delivered mRNA to the PRs, RPE, and Müller glia in mice. This distribution translated to the nonhuman primate eye, wherein robust protein expression was observed in the PRs, Müller glia, and RPE. Overall, we have developed peptide-conjugated LNPs that can enable mRNA delivery to the neural retina, expanding the utility of LNP-mRNA therapies for inherited blindness.
Collapse
Affiliation(s)
- Marco Herrera-Barrera
- Department of Pharmaceutical Sciences, College of Pharmacy, Robertson Life Sciences Building, Oregon State University, Portland, OR 97201, USA
| | - Renee C. Ryals
- Department of Ophthalmology, Casey Eye Institute, Oregon Health and Science University, Portland, OR 97239, USA
- Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR 97006, USA
| | - Milan Gautam
- Department of Pharmaceutical Sciences, College of Pharmacy, Robertson Life Sciences Building, Oregon State University, Portland, OR 97201, USA
| | - Antony Jozic
- Department of Pharmaceutical Sciences, College of Pharmacy, Robertson Life Sciences Building, Oregon State University, Portland, OR 97201, USA
| | - Madeleine Landry
- Department of Pharmaceutical Sciences, College of Pharmacy, Robertson Life Sciences Building, Oregon State University, Portland, OR 97201, USA
| | - Tetiana Korzun
- Oregon Health and Science University Medical School, Portland, OR 97239, USA
| | - Mohit Gupta
- Department of Pharmaceutical Sciences, College of Pharmacy, Robertson Life Sciences Building, Oregon State University, Portland, OR 97201, USA
| | - Chris Acosta
- Department of Pharmaceutical Sciences, College of Pharmacy, Robertson Life Sciences Building, Oregon State University, Portland, OR 97201, USA
| | - Jonathan Stoddard
- Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR 97006, USA
| | - Rene Reynaga
- Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR 97006, USA
| | - Wayne Tschetter
- Department of Ophthalmology, Casey Eye Institute, Oregon Health and Science University, Portland, OR 97239, USA
| | - Nick Jacomino
- Department of Pharmaceutical Sciences, College of Pharmacy, Robertson Life Sciences Building, Oregon State University, Portland, OR 97201, USA
| | - Oleh Taratula
- Department of Pharmaceutical Sciences, College of Pharmacy, Robertson Life Sciences Building, Oregon State University, Portland, OR 97201, USA
| | - Conroy Sun
- Department of Pharmaceutical Sciences, College of Pharmacy, Robertson Life Sciences Building, Oregon State University, Portland, OR 97201, USA
| | - Andreas K. Lauer
- Department of Ophthalmology, Casey Eye Institute, Oregon Health and Science University, Portland, OR 97239, USA
| | - Martha Neuringer
- Department of Ophthalmology, Casey Eye Institute, Oregon Health and Science University, Portland, OR 97239, USA
- Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR 97006, USA
| | - Gaurav Sahay
- Department of Pharmaceutical Sciences, College of Pharmacy, Robertson Life Sciences Building, Oregon State University, Portland, OR 97201, USA
- Department of Ophthalmology, Casey Eye Institute, Oregon Health and Science University, Portland, OR 97239, USA
- Department of Biomedical Engineering, Robertson Life Sciences Building, Oregon Health and Science University, Portland, OR 97201, USA
- Corresponding author.
| |
Collapse
|
8
|
Maharjan S, Gautam M, Poudel K, Yong CS, Ku SK, Kim JO, Byeon JH. Streamlined plug-in aerosol prototype for reconfigurable manufacture of nano-drug delivery systems. Biomaterials 2022; 284:121511. [DOI: 10.1016/j.biomaterials.2022.121511] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 03/11/2022] [Accepted: 04/01/2022] [Indexed: 12/14/2022]
|
9
|
Gautam M, Kim JO, Yong CS. Fabrication of aerosol-based nanoparticles and their applications in biomedical fields. J Pharm Investig 2021; 51:361-375. [PMID: 33996174 PMCID: PMC8113021 DOI: 10.1007/s40005-021-00523-1] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 03/17/2021] [Indexed: 12/23/2022]
Abstract
BACKGROUND Traditionally, nanoparticles for biomedical applications have been produced via the classical wet chemistry method, with size control remaining a major problem in drug delivery. In recent years, advances in aerosol-based technologies have led to the development of methods that enable the production of nanosized particles and have opened up new opportunities in the field of nano-drug delivery and biomedicine. Aerosol-based technologies have been constantly used to synthesize multifunctional nanoparticles with different properties, which extends their possible biological and medicinal applications. Moreover, aerosol technologies are often more beneficial than other existing approaches because of the major disadvantages of these other techniques. AREA COVERED This review provides a brief discussion of the existing aerosol-based nanotechnologies and applications of nanoparticles in a variety of diseases. Various types of nanoparticles, such as graphene oxide, Prussian blue, black phosphorous, gold, copper, silver, tellurium, iron oxide, titania, magnesium oxide, and zinc oxide nanoparticles, prepared using aerosol technologies are discussed in this review. The different tactics used for surface modifications are also outlined. The biomedical applications of nanoparticles in chemotherapy, bacterial/fungal/viral treatment, disease diagnosis, and biological assays are also presented in this review. EXPERT OPINION Aerosol-based technologies can be used to design nanoparticles with the desired functionality. This significantly benefits the nanomedicine field, particularly as product parameters are becoming more encompassing and exacting. One of the biggest issues with conventional methods is their scale-up/scale-down and clinical translation. Aerosol-based nanoparticle synthesis helps enhance control over the product properties and facilitate their use for clinical applications.
Collapse
Affiliation(s)
- Milan Gautam
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan, 712-749 Republic of Korea
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan, 712-749 Republic of Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan, 712-749 Republic of Korea
| |
Collapse
|
10
|
Lorello GR, Gautam M, Barned C, Peer M. Impact of the intersection of anaesthesia and gender on burnout and mental health, illustrated by the COVID-19 pandemic. Anaesthesia 2021; 76 Suppl 4:24-31. [PMID: 33682104 PMCID: PMC8251311 DOI: 10.1111/anae.15360] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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] [Accepted: 11/16/2020] [Indexed: 12/15/2022]
Abstract
Physician burnout and poor mental health are prevalent and often stigmatised. Anaesthetists may be at particular risk and this is further increased for women anaesthetists due to biases and inequities within the specialty. However, gender-related risk factors for and experiences of burnout and poor mental health remain under-researched and under-reported. This negatively impacts individual practitioners, the anaesthesia workforce and patients and carries significant financial implications. We discuss the impact of anaesthesia and gender on burnout and mental health using the COVID-19 pandemic as an example illustrating how women and men differentially experience stressors and burnout. COVID-19 has further accentuated the gendered effects of burnout and poor mental health on anaesthetists and brought further urgency to the need to address these issues. While both personal and organisational factors contribute to burnout and poor mental health, organisational changes that recognise and acknowledge inequities are pivotal to bolster physician mental health.
Collapse
Affiliation(s)
- G. R. Lorello
- Department of Anesthesiology and Pain MedicineUniversity of TorontoTorontoONCanada
- Department of Anesthesiology and Pain MedicineUniversity Health NetworkToronto Western HospitalTorontoONCanada
| | - M. Gautam
- Department of PsychiatryUniversity of OttawaOttawaONCanada
| | - C. Barned
- University Health NetworkToronto Western HospitalTorontoONCanada
- Pragmatic Health Ethics Research UnitInstitut de recherches cliniques de MontrealMontrealQCCanada
| | - M. Peer
- Department of Anesthesiology and Pain MedicineUniversity Health NetworkToronto Western HospitalTorontoONCanada
| |
Collapse
|
11
|
Rajbanshi BG, Acharya A, Neupane P, Gautam M, Sharma A, Kayastha B, Ghimire RK, Sharma R, Joshi LN. Double Aortic Arch with Coarctation of Aorta in an Adolescent: Unraveling the Vascular Ring. Aorta (Stamford) 2021; 8:169-171. [PMID: 33761563 PMCID: PMC8043805 DOI: 10.1055/s-0040-1721746] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
We report the case of a 12-year-old girl with balanced double aortic arch with coarctation of the aorta presenting with symptoms of respiratory and swallowing difficulty. On investigation, the patient had a double aortic arch with coarctation and clinically nonsignificant disease in the infrarenal aorta. Division of the nondominant aortic arch was done through a left thoracotomy, along with resection of the coarctation segment and placement of an interposition Dacron tube graft.
Collapse
Affiliation(s)
- Bijoy G Rajbanshi
- Department of Cardiothoracic and Vascular Surgery, Nepal Mediciti, Lalitpur, Nepal
| | - Anil Acharya
- Department of Cardiothoracic and Vascular Surgery, Nepal Mediciti, Lalitpur, Nepal
| | | | - Milan Gautam
- Department of Cardiology, Nepal Mediciti, Lalitpur, Nepal
| | - Apurb Sharma
- Department of Anesthesiology, Nepal Mediciti, Lalitpur, Nepal
| | | | - Ram K Ghimire
- Department of Radiology, Nepal Mediciti, Lalitpur, Nepal
| | - Ranjit Sharma
- Department of Cardiology, Nepal Mediciti, Lalitpur, Nepal
| | - Lava N Joshi
- Department of Cardiology, Nepal Mediciti, Lalitpur, Nepal
| |
Collapse
|
12
|
Mizzi R, Timms VJ, Price-Carter ML, Gautam M, Whittington R, Heuer C, Biggs PJ, Plain KM. Comparative Genomics of Mycobacterium avium Subspecies Paratuberculosis Sheep Strains. Front Vet Sci 2021; 8:637637. [PMID: 33659287 PMCID: PMC7917049 DOI: 10.3389/fvets.2021.637637] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 01/25/2021] [Indexed: 12/15/2022] Open
Abstract
Mycobacterium avium subspecies paratuberculosis (MAP) is the aetiological agent of Johne's disease (JD), a chronic enteritis that causes major losses to the global livestock industry. Further, it has been associated with human Crohn's disease. Several strains of MAP have been identified, the two major groups being sheep strain MAP, which includes the Type I and Type III sub-lineages, and the cattle strain or Type II MAP lineage, of which bison strains are a sub-grouping. Major genotypic, phenotypic and pathogenic variations have been identified in prior comparisons, but the research has predominately focused on cattle strains of MAP. In countries where the sheep industries are more prevalent, however, such as Australia and New Zealand, ovine JD is a substantial burden. An information gap exists regarding the genomic differences between sheep strain sub-lineages and the relevance of Type I and Type III MAP in terms of epidemiology and/or pathogenicity. We therefore investigated sheep MAP isolates from Australia and New Zealand using whole genome sequencing. For additional context, sheep MAP genome datasets were downloaded from the Sequence Read Archive and GenBank. The final dataset contained 18 Type III and 16 Type I isolates and the K10 cattle strain MAP reference genome. Using a pan-genome approach, an updated global phylogeny for sheep MAP from de novo assemblies was produced. When rooted with the K10 cattle reference strain, two distinct clades representing the lineages were apparent. The Australian and New Zealand isolates formed a distinct sub-clade within the type I lineage, while the European type I isolates formed another less closely related group. Within the type III lineage, isolates appeared more genetically diverse and were from a greater number of continents. Querying of the pan-genome and verification using BLAST analysis revealed lineage-specific variations (n = 13) including genes responsible for metabolism and stress responses. The genetic differences identified may represent important epidemiological and virulence traits specific to sheep MAP. This knowledge will potentially contribute to improved vaccine development and control measures for these strains.
Collapse
Affiliation(s)
- Rachel Mizzi
- Farm Animal Health Group, Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, Camden, NSW, Australia
| | - Verlaine J Timms
- Centre for Infectious Diseases and Microbiology, Public Health, Westmead Hospital, Westmead, NSW, Australia
| | | | - Milan Gautam
- School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - Richard Whittington
- Farm Animal Health Group, Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, Camden, NSW, Australia
| | - Cord Heuer
- School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - Patrick J Biggs
- School of Veterinary Science, Massey University, Palmerston North, New Zealand.,School of Fundamental Sciences, Massey University, Palmerston North, New Zealand
| | - Karren M Plain
- Farm Animal Health Group, Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, Camden, NSW, Australia
| |
Collapse
|
13
|
Poudel K, Banstola A, Gautam M, Soe ZC, Pham LM, Jeong JH, Choi HG, Ku SK, Yong CS, Tran TH, Kim JO. Redox/photo dual-responsive, self-targeted, and photosensitizer-laden bismuth sulfide nanourchins for combination therapy in cancer. Nanoscale 2021; 13:1231-1247. [PMID: 33406178 DOI: 10.1039/d0nr07736d] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Targeted and stimuli-sensitive nanobombs for the release of therapeutic agents after laser irradiation of the tumor site are gaining widespread attention as personalized anticancer regimens. In this study, redox and photo dual-responsive, folate receptor-targeted nanourchin carriers for chemo-, photodynamic, and photothermal therapy were constructed by the amalgamation of an outer layer of polyethylene glycol (PEG)-S-S-methotrexate (MTX) and an inner core of indocyanine green (ICG)-loaded bismuth sulfide (Bi2S3) nanoparticles for cancer treatment. MTX introduces the carrier to folate receptors resulting in the internalization of nanoparticles into cancer cells, specifically and increasingly. In the reducing environment inside cancer cells, MTX was cleaved, resulting in a burst release that effectively inhibited tumor growth. Simultaneously, the fusion of Bi2S3 and ICG in the inner core absorbed energy from a near-infrared radiation (NIR) laser to generate heat and reactive oxygen species, which further ablated the tumors and synergistically enhanced the anticancer activity of MTX. These results indicate the successful preparation of combined nanourchins (NUs) showing GSH-induced and laser-responsive release of MTX and ICG, accompanied by hyperthermia via Bi2S3 and ICG. Effective in vitro cellular internalization, cellular cytotoxicity, and pro-apoptotic behavior of the nanosystem were achieved through a targeting, redox, and NIR-responsive combination strategy. In vivo biodistribution and photothermal imaging also revealed tumor-selective and -retentive, as well as thermally responsive attributes. Ultimately, this in vivo antitumor study shows an effective tumor ablation by these nanourchins without affecting the vital organs. Our findings indicate that using these targeted redox- and laser-responsive combination therapeutic carriers can be a promising strategy in folate receptor-expressing tumors.
Collapse
Affiliation(s)
- Kishwor Poudel
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea.
| | - Asmita Banstola
- College of Pharmacy, Keimyung University, Daegu 42601, Republic of Korea
| | - Milan Gautam
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea.
| | - Zar Chi Soe
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea.
| | - Le Minh Pham
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea.
| | - Jee-Heon Jeong
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea.
| | - Han-Gon Choi
- College of Pharmacy, Hanyang University, 55, Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, Republic of Korea
| | - Sae Kwang Ku
- Department of Anatomy and Histology, College of Korean Medicine, Daegu Haany University, Gyeongsan 38610, Republic of Korea.
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea.
| | - Tuan Hiep Tran
- Faculty of Pharmacy, PHENIKAA University, Yen Nghia, Ha Dong, Hanoi 12116, Vietnam. and PHENIKAA Research and Technology Institute (PRATI), A&A Green Phoenix Group JSC, No. 167 Hoang Ngan, Trung Hoa, Cau Giay, Hanoi 11313, Vietnam
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea.
| |
Collapse
|
14
|
Pham LM, Kim EC, Ou W, Phung CD, Nguyen TT, Pham TT, Poudel K, Gautam M, Nguyen HT, Jeong JH, Yong CS, Park SY, Kim JR, Kim JO. Targeting and clearance of senescent foamy macrophages and senescent endothelial cells by antibody-functionalized mesoporous silica nanoparticles for alleviating aorta atherosclerosis. Biomaterials 2021; 269:120677. [PMID: 33503557 DOI: 10.1016/j.biomaterials.2021.120677] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [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: 07/28/2020] [Revised: 01/04/2021] [Accepted: 01/11/2021] [Indexed: 01/02/2023]
Abstract
Senescent cells drive atherosclerosis at all stages and contribute to cardiovascular disease. However, the markers in these senescent aortic plaques have not been well studied, creating a huge obstacle in the exploration of a precise and efficient system for atherosclerosis treatment. Recently, CD9 has been found to induce cellular senescence and aggravated atherosclerotic plaque formation in apolipoprotein E knockout (ApoE-/-) mice. In the present study, this result has been leveraged to develop CD9 antibody-modified, hyaluronic acid-coated mesoporous silica nanoparticles with a hyaluronidase-responsive drug release profile. In invitro models of senescent foamy macrophages and senescent endothelial cells stimulated with oxidized high-density-lipoprotein, the CD9 antibody-modified mesoporous silica nanoparticles exhibit high cellular uptake; reduce the reactive oxygen species level, high-density lipoprotein oxidation, and production of TNF-α and IL-6; and attenuate the senescence process, contributing to improved cell viability. In vivo experiment demonstrated that these nanoparticles can successfully target the senescent lesion areas, deliver the anti-senescence drug rosuvastatin to the senescent atherosclerotic plaques (mainly endothelial cells and macrophages), and alleviate the progression of atherosclerosis in ApoE-/- mice. By providing deep insight regarding the markers in senescent atherosclerotic plaque and developing a nano-system targeting this lesion area, the study proposes a novel and an accurate therapeutic approach for mitigating atherosclerosis through senescent cell clearance.
Collapse
Affiliation(s)
- Le Minh Pham
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Eok-Cheon Kim
- Department of Biochemistry and Molecular Biology, Smart-Aging Convergence Research Center, College of Medicine Yeungnam University, Daegu, 42415, Republic of Korea
| | - Wenquan Ou
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Cao Dai Phung
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Tien Tiep Nguyen
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Thanh Tung Pham
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Kishwor Poudel
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Milan Gautam
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Hanh Thuy Nguyen
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Jee-Heon Jeong
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - So-Young Park
- Department of Physiology, Smart-Aging Convergence Research Center, College of Medicine Yeungnam University, Daegu, 42415, Republic of Korea.
| | - Jae-Ryong Kim
- Department of Biochemistry and Molecular Biology, Smart-Aging Convergence Research Center, College of Medicine Yeungnam University, Daegu, 42415, Republic of Korea.
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
| |
Collapse
|
15
|
Poudel K, Banstola A, Gautam M, Soe Z, Phung CD, Pham LM, Jeong JH, Choi HG, Ku SK, Tran TH, Yong CS, Kim JO. Macrophage-Membrane-Camouflaged Disintegrable and Excretable Nanoconstruct for Deep Tumor Penetration. ACS Appl Mater Interfaces 2020; 12:56767-56781. [PMID: 33289550 DOI: 10.1021/acsami.0c17235] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The consolidation of nanovectors with biological membranes has recently been a subject of interest owing to the prolonged systemic circulation time and delayed clearance by the reticuloendothelial system of such systems. Among the different biomembranes, the macrophage membrane has a similar systemic circulation time, with an additional chemotactic aptitude, targeting integrin proteins. In this study, we aimed to establish a laser-activated, disintegrable, and deeply tumor-penetrative nanoplatform. We used a highly tumor-ablative and laser-responsive disintegrable copper sulfide nanoparticle, loaded it with paclitaxel, and camouflaged it with the macrophage membrane for the fabrication of PTX@CuS@MMNPs. The in vitro paclitaxel release profile was favorable for release in the tumor microenvironment, and the release was accelerated after laser exposure. Cellular internalization was improved by membrane encapsulation. Cellular uptake, cytotoxicity, reactive oxygen species generation, and apoptosis induction of PTX@CuS@MMNPs were further improved upon laser exposure, and boosted permeation was achieved by co-administration of the tumor-penetrating peptide iRGD. In vivo tumor accumulation, tumor inhibition rate, and apoptotic marker expression induced by PTX@CuS@MMNPs were significantly improved by laser irradiation and iRGD co-administration. PTX@CuS@MMNPs induced downregulation of cellular proliferation and angiogenic markers but no significant changes in body weight, survival, or significant toxicities in vital organs after laser exposure, suggesting their biocompatibility. The disintegrability of the nanosystem, accredited to biodegradability, favored efficient elimination from the body. In conclusion, PTX@CuS@MMNPs showed promising traits in combination therapies for excellent tumor eradication.
Collapse
Affiliation(s)
- Kishwor Poudel
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Asmita Banstola
- College of Pharmacy, Keimyung University, Daegu 42601, Republic of Korea
| | - Milan Gautam
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Zarchi Soe
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Cao Dai Phung
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Le Minh Pham
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Jee-Heon Jeong
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Han-Gon Choi
- College of Pharmacy, Hanyang University, 55, Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, Republic of Korea
| | - Sae Kwang Ku
- Department of Anatomy and Histology, College of Korean Medicine, Daegu Haany University, Gyeongsan 38610, Republic of Korea
| | - Tuan Hiep Tran
- Faculty of Pharmacy, Phenikaa University, Yen Nghia, Ha Dong District, Hanoi 100803, Vietnam
- PHENIKAA Research and Technology Institute (PRATI), A&A Green Phoenix Group JSC, No. 167 Hoang Ngan, Cau Giay, Hanoi 11313, Vietnam
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| |
Collapse
|
16
|
Gautam M, Shukla K, Sawal N. Impulse-control and related behavioural disorder (ICD-RB) due to maladaptive-use of pramipexole in patients of advanced Parkinson's Disease (PD). Parkinsonism Relat Disord 2020. [DOI: 10.1016/j.parkreldis.2020.06.097] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
17
|
Gautam M, Gupta B, Soe ZC, Poudel K, Maharjan S, Jeong JH, Choi HG, Ku SK, Yong CS, Kim JO. Stealth Polymer-Coated Graphene Oxide Decorated Mesoporous Titania Nanoplatforms for In Vivo Chemo-Photodynamic Cancer Therapy. Pharm Res 2020; 37:162. [PMID: 32749542 DOI: 10.1007/s11095-020-02900-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 06/18/2020] [Accepted: 07/28/2020] [Indexed: 12/13/2022]
Abstract
PURPOSE The goal of this study was to develop chemotherapeutic drug-loaded photoactivable stealth polymer-coated silica based- mesoporous titania nanoplatforms for enhanced antitumor activity. METHODS Both in vitro and in vivo models of solvothermal treated photoactivable nanoplatforms were evaluated for efficient chemo-photothermal activity. A versatile nanocomposite that combined silica based- mesoporous titania nanocarriers (S-MTN) with the promising photoactivable agent, graphene oxide (G) modified with a stealth polymer (P) was fabricated to deliver chemotherapeutic agent, imatinib (I), (referred as S-MTN@IG-P) for near-infrared (NIR)-triggered drug delivery and enhanced chemo-photothermal therapy. RESULTS The fabricated S-MTN@IG-P nanoplatform showed higher drug loading (~20%) and increased drug release (~60%) in response to light in acidic condition (pH 5.0). As prepared nanoplatform significantly converted NIR light into thermal energy (43.2°C) to produce reactive oxygen species (ROS). The pronounced cytotoxic effect was seen in both colon cancer cells (HCT-116 and HT-29) that was mediated through the chemotherapeutic effect of imatinib and the photothermal and ROS generation effects of graphene oxide. In vivo study also showed that S-MTN@IG-P could significantly accumulate into the tumor area and suppress the tumor growth under NIR irradiation without any biocompatibility issues. CONCLUSION Cumulatively, the above results showed promising effects of S-MTN@IG-P for effective chemo-phototherapy of colon cancer.
Collapse
Affiliation(s)
- Milan Gautam
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Biki Gupta
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Zar Chi Soe
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Kishwor Poudel
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Srijan Maharjan
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Jee-Heon Jeong
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Han-Gon Choi
- College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, 55, Hanyangdaehak-ro, Sangnok-gu, Ansan, 426-791, Republic of Korea
| | - Sae Kwang Ku
- College of Korean Medicine, Daegu Haany University, Gyeongsan, 38610, Republic of Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
| |
Collapse
|
18
|
Poudel K, Banstola A, Tran TH, Thapa RK, Gautam M, Ou W, Pham LM, Maharjan S, Jeong JH, Ku SK, Choi HG, Yong CS, Kim JO. Hyaluronic acid wreathed, trio-stimuli receptive and on-demand triggerable nanoconstruct for anchored combinatorial cancer therapy. Carbohydr Polym 2020; 249:116815. [PMID: 32933663 DOI: 10.1016/j.carbpol.2020.116815] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [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: 04/23/2020] [Revised: 07/01/2020] [Accepted: 07/22/2020] [Indexed: 12/12/2022]
Abstract
Hyaluronic acid (HA) assisted effective internalization into CD44 receptor-overexpressing cancer cells, which could offer an excellent cytotoxic profile and tumor alterations. In this study, duo-photothermal agents (copper sulfide (CuS) and graphene oxide (GO)), chemotherapeutic drug (doxorubicin (DOX)), and targeting moiety (HA) were incorporated into a complexed nanoconstruct for trio-responsive chemo-phototherapy. The nanosystem (CuS(DOX)-GO-HA) was demonstrating its responsive drug release and escalated photothermal behavior. The hyperthermia and photodynamic effect were observed along with efficient ROS generation in the presence of dual photosensitizers. The in vivo biodistribution and photothermal profile reflected a high accumulation and retention of the nanoconstruct in the tumor. Importantly, nanoconstructs effectively inhibit tumor growth based on tumor volume analysis and the altered expression of apoptosis, cell proliferation, and angiogenesis markers. Collectively, these findings suggest that this nanoconstruct has excellent antitumor effects in CD44 overexpressed cells showing the potential for clinical translation in the future.
Collapse
Affiliation(s)
- Kishwor Poudel
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, South Korea
| | - Asmita Banstola
- College of Pharmacy, Keimyung University, Daegu 42601, Republic of Korea
| | - Tuan Hiep Tran
- Faculty of Pharmacy, Phenikaa University, Yen Nghia, Ha Dong District, Hanoi 100803, Viet Nam; PHENIKAA Research and Technology Institute (PRATI), A&A Green Phoenix Group JSC, No.167 Hoang Ngan, Trung Hoa, Cau Giay, Hanoi 11313, Viet Nam
| | - Raj Kumar Thapa
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, South Korea
| | - Milan Gautam
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, South Korea
| | - Wenquan Ou
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, South Korea
| | - Le Minh Pham
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, South Korea
| | - Srijan Maharjan
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, South Korea
| | - Jee-Heon Jeong
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, South Korea
| | - Sae Kwang Ku
- Department of Anatomy and Histology, College of Korean Medicine, Daegu Haany University, Gyeongan 712-715, South Korea
| | - Han-Gon Choi
- College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, 55, Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, South Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, South Korea.
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, South Korea.
| |
Collapse
|
19
|
Poudel K, Gautam M, Maharjan S, Jeong JH, Choi HG, Khan GM, Yong CS, Kim JO. Dual stimuli-responsive ursolic acid-embedded nanophytoliposome for targeted antitumor therapy. Int J Pharm 2020; 582:119330. [PMID: 32298743 DOI: 10.1016/j.ijpharm.2020.119330] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [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: 12/31/2019] [Revised: 03/23/2020] [Accepted: 04/10/2020] [Indexed: 12/12/2022]
Abstract
The hindrances in achieving clinically translatable anticancer platforms are being tackled through nanotechnology-based formulations. In this study, stimuli-responsive, phytoactive constituent-loaded nanophytoliposomes were fabricated for designing a specific antitumor platform. Ursolic acid (UA)-loaded nanophytoliposomes (UA-PLL-HA.P) enwrapped in a poly-L-lysine (PLL) coat and hyaluronic acid (HA) were nanosized; these nanophytoliposomes had spherical morphology, slightly negative charge, and an in-range polydispersity index (~0.25). Successful fabrication of the nanosystem was proven through several characterization methods and the pH- and enzyme-responsiveness of the nanosystem was assessed through a release study. The cellular internalization in CD44 receptor-expressing cell lines was amplified by enhanced permeation and retention as well as by active targeting. In vitro antitumor behavior was confirmed through in vitro cytotoxic and apoptotic activity of the nanosystem. Similarly, in vivo imaging showed exceptional biodistribution in the tumor in agreement with the in vitro findings. Moreover, the tumor inhibitory rate of UA-PLL-HA.P was significantly higher, and was ascribed to the targeting potential and stimuli-responsiveness. In summary, UA-PLL-HA.P exhibited pronounced anticancer effect and could open a number of possibilities for discovering novel phytoconstituent-incorporated nanoformulations.
Collapse
Affiliation(s)
- Kishwor Poudel
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan 712-749, Republic of Korea
| | - Milan Gautam
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan 712-749, Republic of Korea
| | - Srijan Maharjan
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan 712-749, Republic of Korea
| | - Jee-Heon Jeong
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan 712-749, Republic of Korea
| | - Han-Gon Choi
- College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, 55, Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, Republic of Korea
| | - Gulam Muhammad Khan
- Pokhara University Research Centre (PURC), Pokhara University, Dhungepatan, Lekhnath-12, Kaski, Nepal
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan 712-749, Republic of Korea.
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan 712-749, Republic of Korea.
| |
Collapse
|
20
|
Gautam M, Thapa RK, Gupta B, Soe ZC, Ou W, Poudel K, Jin SG, Choi HG, Yong CS, Kim JO. Phytosterol-loaded CD44 receptor-targeted PEGylated nano-hybrid phyto-liposomes for synergistic chemotherapy. Expert Opin Drug Deliv 2020; 17:423-434. [DOI: 10.1080/17425247.2020.1727442] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Milan Gautam
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
| | - Raj Kumar Thapa
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
| | - Biki Gupta
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
| | - Zar Chi Soe
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
| | - Wenquan Ou
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
| | - Kishwor Poudel
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
| | - Sung Giu Jin
- Department of Pharmaceutical Engineering, Dankook University, Dongnam-gu, Republic of Korea
| | - Han-Gon Choi
- College of Pharmacy, Hanyang University, Sangnok-gu, Republic of Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
| |
Collapse
|
21
|
Abstract
Due to antimicrobial resistance and the adverse health effects that follow broad and inappropriate use of antibacterial agents, new classes of antibacterials with broad and strong bactericidal activity and safety for human use are urgently required globally, increasingly so with the onset of climate change. However, R&D in this field is known to be rarely profitable, unless a cost-effective, flexible, and convenient platform that ensures the production of workable candidate antibacterials can be developed. To address this issue, inorganic nanomaterials have been considered for their bactericidal activities, yet further investigations of composition crystalline modifications and/or surface biomaterial coatings are still required to provide effective and safe antibacterial nanoparticles. In this study, we developed a plug-in system comprising a spark plasma reactor and a flow heater under nitrogen gas flow to supply precursor inorganic nanoparticles (Cu-Te configuration) that can be modulated in-flight at different temperatures. From antibacterial and toxicological assays in both in vitro and in vivo models, bactericidal and toxicological profiles showed that the plug-in system-based platform can be used to identify key parameters for producing safe-by-design agents with antibacterial activity [>88% (in vitro) and >80% (in vivo) in antibacterial efficiency] and safety (>65% in in vitro viability and >60% in in vivo survival rate).
Collapse
Affiliation(s)
- Milan Gautam
- College of Pharmacy , Yeungnam University , Gyeongsan 38541 , Republic of Korea
| | - Dae Hoon Park
- School of Mechanical Engineering , Yonsei University , Seoul 03722 , Republic of Korea
| | - Sung Jae Park
- School of Mechanical Engineering , Yonsei University , Seoul 03722 , Republic of Korea
| | - Kang Sik Nam
- School of Mechanical Engineering , Yonsei University , Seoul 03722 , Republic of Korea
| | - Geun Young Park
- School of Mechanical Engineering , Yonsei University , Seoul 03722 , Republic of Korea
| | - Jungho Hwang
- School of Mechanical Engineering , Yonsei University , Seoul 03722 , Republic of Korea
| | - Chul Soon Yong
- College of Pharmacy , Yeungnam University , Gyeongsan 38541 , Republic of Korea
| | - Jong Oh Kim
- College of Pharmacy , Yeungnam University , Gyeongsan 38541 , Republic of Korea
| | - Jeong Hoon Byeon
- School of Mechanical Engineering , Yeungnam University , Gyeongsan 38541 , Republic of Korea
| |
Collapse
|
22
|
Soe ZC, Ou W, Gautam M, Poudel K, Kim BK, Pham LM, Phung CD, Jeong JH, Jin SG, Choi HG, Ku SK, Yong CS, Kim JO. Development of Folate-Functionalized PEGylated Zein Nanoparticles for Ligand-Directed Delivery of Paclitaxel. Pharmaceutics 2019; 11:E562. [PMID: 31671569 PMCID: PMC6920870 DOI: 10.3390/pharmaceutics11110562] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 10/23/2019] [Accepted: 10/25/2019] [Indexed: 12/11/2022] Open
Abstract
In this study, we investigated the active targeted delivery of a hydrophobic drug, paclitaxel (PTX), via receptor-mediated endocytosis by folate receptors expressed on cancer cells using a protein-based nanoparticle system. PTX was loaded on zein nanoparticles and conjugated with folate (PTX/Zein-FA) to estimate its chemotherapeutic efficacy in folate receptor-expressing KB cancer cells. PTX/Zein-FA nanoparticles were successfully developed, with a nanoparticle size of ~180 nm and narrow polydispersity index (~0.22). Accelerated release of PTX in an acidic environment was observed for PTX/Zein-FA. An in vitro cellular study of PTX/Zein-FAs in KB cells suggested that PTX/Zein-FA improved the cytotoxic activity of PTX on folate receptors overexpressed in cancer cells by inducing proapoptotic proteins and inhibiting anti-apoptotic proteins. In addition, PTX/Zein-FA exhibited anti-migratory properties and could alter the cell cycle profile of KB cells. A549 cells, which are folate receptor-negative cancer cells, showed no significant enhancement in the in vitro cellular activities of PTX/Zein-FA. We describe the antitumor efficacy of PTX/Zein-FA in KB tumor-bearing mice with minimum toxicity in healthy organs, and the results were confirmed in comparison with free drug and non-targeted nanoparticles.
Collapse
Affiliation(s)
- Zar Chi Soe
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Korea.
- Department of Pharmaceutics, University of Pharmacy (Mandalay), Mandalay-Lashio Rd, Mandalay 05011, Myanmar.
| | - Wenquan Ou
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Korea.
| | - Milan Gautam
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Korea.
| | - Kishwor Poudel
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Korea.
| | - Bo Kyun Kim
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Korea.
| | - Le Minh Pham
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Korea.
| | - Cao Dai Phung
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Korea.
| | - Jee-Heon Jeong
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Korea.
| | - Sung Giu Jin
- Department of Pharmaceutical Engineering, Dankook University, 119 Dandae-ro, Dongnamgu, Cheonan 31116, Korea.
| | - Han-Gon Choi
- College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, Korea.
| | - Sae Kwang Ku
- Department of Anatomy and Histology, College of Korean Medicine, Haany University, Gyeongsan 712-715, Korea.
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Korea.
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Korea.
| |
Collapse
|
23
|
Ou W, Jiang L, Gu Y, Soe ZC, Kim BK, Gautam M, Poudel K, Pham LM, Phung CD, Chang JH, Kim JR, Ku SK, Yong CS, Kim JO. Regulatory T Cells Tailored with pH-Responsive Liposomes Shape an Immuno-Antitumor Milieu against Tumors. ACS Appl Mater Interfaces 2019; 11:36333-36346. [PMID: 31535550 DOI: 10.1021/acsami.9b11371] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Cell-based delivery platforms have received great interest in recent years and have been indicated as a promising strategy for cancer immunotherapy. Despite their wide applications in the clinical and preclinical stages, their concomitant viability and efficacy remain major issues. Herein, a strategy for harnessing regulatory T (Treg) cells is developed as an actively targeting drug-delivery system to transport drug-loaded liposomes to the desired tumor sites via conjugating liposomes on the surface of Treg cells. Under the guidance of tumor-oriented chemokines, liposome-anchored Treg cells can be leveraged to migrate and infiltrate the acidic tumor microenvironment, where pH-sensitive liposomes release the loaded cargos [comprising interleukin-2, programmed cell death ligand 1 antibody (PD-L1), and imiquimod], provoke dramatic dendritic cell maturation, block the PD-1/PD-L1 immune-checkpoint, elevate the frequency of infiltrating CD8+ effector T cells, and collectively contribute to potent inhibition of in situ and metastatic tumors. Here, the findings suggest a potential approach that offers a simple, robust, and safe insight into the tuning of Treg cells as an encouraging vector for augmenting cancer immunotherapy.
Collapse
Affiliation(s)
- Wenquan Ou
- College of Pharmacy , Yeungnam University , 280, Daehak-ro , Gyeongsan 38541 , Republic of Korea
| | - Liyuan Jiang
- College of Pharmacy , Yeungnam University , 280, Daehak-ro , Gyeongsan 38541 , Republic of Korea
| | - Ye Gu
- College of Pharmacy , Yeungnam University , 280, Daehak-ro , Gyeongsan 38541 , Republic of Korea
| | - Zar Chi Soe
- College of Pharmacy , Yeungnam University , 280, Daehak-ro , Gyeongsan 38541 , Republic of Korea
| | - Bo Kyun Kim
- College of Pharmacy , Yeungnam University , 280, Daehak-ro , Gyeongsan 38541 , Republic of Korea
| | - Milan Gautam
- College of Pharmacy , Yeungnam University , 280, Daehak-ro , Gyeongsan 38541 , Republic of Korea
| | - Kishwor Poudel
- College of Pharmacy , Yeungnam University , 280, Daehak-ro , Gyeongsan 38541 , Republic of Korea
| | - Le Minh Pham
- College of Pharmacy , Yeungnam University , 280, Daehak-ro , Gyeongsan 38541 , Republic of Korea
| | - Cao Dai Phung
- College of Pharmacy , Yeungnam University , 280, Daehak-ro , Gyeongsan 38541 , Republic of Korea
| | - Jae-Hoon Chang
- College of Pharmacy , Yeungnam University , 280, Daehak-ro , Gyeongsan 38541 , Republic of Korea
| | - Jae Ryong Kim
- Department of Biochemistry and Molecular Biology, College of Medicine , Yeungnam University , Daegu 42415 , Republic of Korea
| | - Sae Kwang Ku
- Department of Anatomy and Histology, College of Korean Medicine , Daegu Haany University , Gyeongsan 712-715 , Republic of Korea
| | - Chul Soon Yong
- College of Pharmacy , Yeungnam University , 280, Daehak-ro , Gyeongsan 38541 , Republic of Korea
| | - Jong Oh Kim
- College of Pharmacy , Yeungnam University , 280, Daehak-ro , Gyeongsan 38541 , Republic of Korea
| |
Collapse
|
24
|
Poudel K, Thapa RK, Gautam M, Ou W, Soe ZC, Gupta B, Ruttala HB, Thuy HN, Dai PC, Jeong JH, Ku SK, Choi HG, Yong CS, Kim JO. Multifaceted NIR-responsive polymer-peptide-enveloped drug-loaded copper sulfide nanoplatform for chemo-phototherapy against highly tumorigenic prostate cancer. Nanomedicine: Nanotechnology, Biology and Medicine 2019; 21:102042. [DOI: 10.1016/j.nano.2019.102042] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 05/09/2019] [Accepted: 05/29/2019] [Indexed: 12/17/2022]
|
25
|
Adhikari SP, Gautam M. The Effectiveness of Accelerated Skill Acquisition Program for Upper Extremity Motor Training in Bilateral Stroke. Kathmandu Univ Med J (KUMJ) 2019; 17:341-343. [PMID: 33311046] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The bilateral stroke is an added challenge for functional recovery. The evidence of effective therapy intervention for bilateral stroke is rare. A protocol of 30 hours (5 hours/week for 6 weeks) of accelerated skill acquisition program (ASAP) has been administered to a patient with bilateral ischemic middle cerebral artery syndrome at sub-acute stage. Two sessions per day (separately for right and left) were administered. Nepali Wolf Motor Function Test (WMFT) was used to evaluate performance time before and after the treatment. The performance time on Wolf Motor Function Test got largely and consistently reduced on all items of both extremities. There was improvement in grip strength and weight lifting items. Bilateral hand items and turn key in lock were successfully completed after the treatment. Thus, the accelerated skill acquisition program yielded large reduction in performance time, improved hand skills and demonstrated functional improvement of both upper extremities in individual with bilateral stroke.
Collapse
Affiliation(s)
- S P Adhikari
- Department of Physiotherapy, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - M Gautam
- Department of Physiotherapy, Nepal Army Hospital, Kathmandu, Nepal
| |
Collapse
|
26
|
Gautam M, Thapa RK, Poudel BK, Gupta B, Ruttala HB, Nguyen HT, Soe ZC, Ou W, Poudel K, Choi HG, Ku SK, Yong CS, Kim JO. Aerosol technique-based carbon-encapsulated hollow mesoporous silica nanoparticles for synergistic chemo-photothermal therapy. Acta Biomater 2019; 88:448-461. [PMID: 30818051 DOI: 10.1016/j.actbio.2019.02.029] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [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: 10/23/2018] [Revised: 02/11/2019] [Accepted: 02/19/2019] [Indexed: 11/17/2022]
Abstract
Near-infrared (NIR)-responsive drug delivery systems have enhanced tumor ablative efficiency through permeation and retention effects. Graphene oxide (GO) has shown great potential both in photothermal therapy and in drug delivery. Thus, in this study, we designed an ambient spark-generated GO, wrapped on topotecan (TPT)-loaded hollow mesoporous silica nanoparticles (HMSN-NH2-TPT-CGO), to function as an efficient platform for pH-dependent sustained release of TPT. HMSN-NH2-TPT-CGO also exhibited a combined chemo-photothermal effect within a single carrier system. This developed system was stable with a uniform particle size (∼190 nm) and was demonstrated to possess a sufficient heat-absorbing capacity to induce tumor cell ablation. We performed the ablation of tumor cells both in vitro and in vivo in combination with photothermal therapy and chemotherapy using the spark-generated functional GO and HMSN. The prepared nanocarriers demonstrated high cellular uptake, apoptosis, and G0/G1 cell cycle arrest. In vivo study using the MDA-MB-231 xenograft model revealed the ultraefficient tumor ablative performance of HMSN-NH2-TPT-CGO compared with that of free TPT, with no toxic effect on vital organs. Altogether, the optimized nanocarriers presented a significant potential to act as a vehicle for cancer treatment. STATEMENT OF SIGNIFICANCE: This is the first study that uses spark-generated graphene oxide nanoflakes to cover the topotecan (TPT)-loaded hollow mesoporous silica nanoparticles (HMSNs) to treat breast cancer. Dense silica was used as a hard template to prepare the HMSNs attributing to a high drug payload. The concentration of Na2CO3 was precisely controlled to minimize the silica etching time within 70 min. The use of the nanographene flakes served a dual purpose, first, by acting as a capping agent to prevent the premature release of drug and, second, by serving as a nano heater that significantly ablates the tumor cells. The prepared nanocarriers (NCs) exhibited effective and enhanced in vitro and in vivo apoptosis, as well as significant tumor growth inhibition even after 15 days of treatment time, with no toxic effect to the vital organs. The NCs enhanced in vitro tumor cell killing effects and served as an effective carrier for in vivo tumor regression, thereby highlighting the enormous potential of this system for breast cancer therapy.
Collapse
Affiliation(s)
- Milan Gautam
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Raj Kumar Thapa
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Bijay Kumar Poudel
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Biki Gupta
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Hima Bindu Ruttala
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Hanh Thuy Nguyen
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Zar Chi Soe
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Wenquan Ou
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Kishwor Poudel
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Han-Gon Choi
- College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, 55, Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, Republic of Korea
| | - Sae Kwang Ku
- College of Korean Medicine, Daegu Haany University, Gyeongsan 712-702, Republic of Korea.
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea.
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea.
| |
Collapse
|
27
|
Poudel K, Gautam M, Jin SG, Choi HG, Yong CS, Kim JO. Copper sulfide: An emerging adaptable nanoplatform in cancer theranostics. Int J Pharm 2019; 562:135-150. [PMID: 30904728 DOI: 10.1016/j.ijpharm.2019.03.043] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [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: 01/11/2019] [Revised: 03/18/2019] [Accepted: 03/19/2019] [Indexed: 02/07/2023]
Abstract
Copper sulfide nanoparticles (CuS NPs), emerging nanoplatforms with dual diagnostic and therapeutic applications, are being actively investigated in this era of "war on cancer" owing to their versatility and adaptability. This article discusses the pros and cons of using CuS NPs in diagnostics, therapeutics, and theranostics. The first section introduces CuS NPs and discusses the features that render them more advantageous than other established nanoplatforms in cancer management. Subsequent sections include specific in vitro and in vivo results of different studies showing the potential of CuS NPs as nanoplatforms. Methods used for visualization (photoacoustic imaging and magnetic resonance imaging) of CuS NPs and treatment (phototherapy and combinatorial therapy) have also been discussed. Furthermore, the challenges and opportunities associated with using CuS NPs have been elucidated. Further investigations on CuS NPs are required to translate it for clinical applications.
Collapse
Affiliation(s)
- Kishwor Poudel
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan 712-749, Republic of Korea
| | - Milan Gautam
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan 712-749, Republic of Korea
| | - Sung Giu Jin
- Department of Pharmaceutical Engineering, Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan 31116, Republic of Korea
| | - Han-Gon Choi
- College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 15588, Republic of Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan 712-749, Republic of Korea.
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 280 Daehak-Ro, Gyeongsan 712-749, Republic of Korea.
| |
Collapse
|
28
|
Brauning R, Plain K, Gautam M, Russell T, Correa CC, Biggs P, Whittington R, Murray A, Price-Carter M. Complete Genome Sequence of the Telford Type S Strain of Mycobacterium avium subsp. paratuberculosis. Microbiol Resour Announc 2019; 8:e00004-19. [PMID: 30938318 PMCID: PMC6424202 DOI: 10.1128/mra.00004-19] [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] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 02/08/2019] [Indexed: 11/20/2022] Open
Abstract
Mycobacterium avium subsp. paratuberculosis is the causative agent of Johne's disease (JD). Here, we report the complete genome sequence of Telford 9.2, a well-characterized representative strain of the M. avium subsp. paratuberculosis S subtype that is endemic in New Zealand and Australian sheep.
Collapse
Affiliation(s)
- Rudiger Brauning
- AgResearch Ltd., Invermay Agricultural Centre, Mosgiel, New Zealand
| | - Karren Plain
- University of Sydney, Camden, New South Wales, Australia
| | - Milan Gautam
- School of Veterinary Science, EpiCentre, Massey University, Palmerston North, New Zealand
| | - Tonia Russell
- Ramaciotti Centre for Genomics, University of New South Wales (UNSW), Sydney, Australia
| | - C Carolina Correa
- Ramaciotti Centre for Genomics, University of New South Wales (UNSW), Sydney, Australia
| | - Patrick Biggs
- Infectious Disease Research Centre, School of Veterinary Science, Hopkirk Research Institute, and School of Fundamental Sciences, Massey University, Palmerston North, New Zealand
| | | | - Alan Murray
- School of Veterinary Science, Hopkirk Research Institute, Massey University, Palmerston North, New Zealand
| | | |
Collapse
|
29
|
Soe ZC, Kwon JB, Thapa RK, Ou W, Nguyen HT, Gautam M, Oh KT, Choi HG, Ku SK, Yong CS, Kim JO. Transferrin-Conjugated Polymeric Nanoparticle for Receptor-Mediated Delivery of Doxorubicin in Doxorubicin-Resistant Breast Cancer Cells. Pharmaceutics 2019; 11:E63. [PMID: 30717256 PMCID: PMC6410246 DOI: 10.3390/pharmaceutics11020063] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 01/23/2019] [Accepted: 01/30/2019] [Indexed: 12/20/2022] Open
Abstract
In this study, a transferrin (Tf)-conjugated polymeric nanoparticle was developed for the targeted delivery of the chemotherapeutic agent doxorubicin (Dox) in order to overcome multi-drug resistance in cancer treatment. Our objective was to improve Dox delivery for producing significant antitumor efficacy in Dox-resistant (R) breast cancer cell lines with minimum toxicity to healthy cells. The results of our experiments revealed that Dox was successfully loaded inside a transferrin (Tf)-conjugated polymeric nanoparticle composed of poloxamer 407 (F127) and 123 (P123) (Dox/F127&P123-Tf), which produced nanosized particles (~90 nm) with a low polydispersity index (~0.23). The accelerated and controlled release profiles of Dox from the nanoparticles were characterized in acidic and physiological pH and Dox/F127&P123-Tf enhanced Dox cytotoxicity in OVCAR-3, MDA-MB-231, and MDA-MB-231(R) cell lines through induction of cellular apoptosis. Moreover, Dox/F127&P123-Tf inhibited cell migration and altered the cell cycle patterns of different cancer cells. In vivo study in MDA-MB-231(R) tumor-bearing mice demonstrated enhanced delivery of nanoparticles to the tumor site when coated in a targeting moiety. Therefore, Dox/F127&P123-Tf has been tailored, using the principles of nanotherapeutics, to overcome drug-resistant chemotherapy.
Collapse
Affiliation(s)
- Zar Chi Soe
- College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan 712-749, Korea.
- Department of Pharmaceutics, University of Pharmacy (Yangon), Waybargi Road, North Okkalapa township, Yangon 11031, Myanmar.
| | - Jun Bum Kwon
- College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan 712-749, Korea.
| | - Raj Kumar Thapa
- College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan 712-749, Korea.
| | - Wenquan Ou
- College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan 712-749, Korea.
| | - Hanh Thuy Nguyen
- College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan 712-749, Korea.
| | - Milan Gautam
- College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan 712-749, Korea.
| | - Kyung Taek Oh
- College of Pharmacy, Chung-Ang University, 221 Heuksuk-dong Dongjak-gu, Seoul 156-756, Korea.
| | - Han-Gon Choi
- College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, Korea.
| | - Sae Kwang Ku
- College of Korean Medicine, Daegu Haany University, Gyeongsan 712-715, Korea.
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan 712-749, Korea.
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan 712-749, Korea.
| |
Collapse
|
30
|
Soe ZC, Poudel BK, Nguyen HT, Thapa RK, Ou W, Gautam M, Poudel K, Jin SG, Jeong JH, Ku SK, Choi HG, Yong CS, Kim JO. Folate-targeted nanostructured chitosan/chondroitin sulfate complex carriers for enhanced delivery of bortezomib to colorectal cancer cells. Asian J Pharm Sci 2019; 14:40-51. [PMID: 32104437 PMCID: PMC7032194 DOI: 10.1016/j.ajps.2018.09.004] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [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: 08/14/2018] [Revised: 09/10/2018] [Accepted: 09/23/2018] [Indexed: 02/04/2023] Open
Abstract
Folate-targeting self-assembled nanoparticles (NPs) using biocompatible and biodegradable natural polymers chitosan (Cs) and chondroitin sulfate (Chs) were developed to address the major challenge in cancer treatment, the selective delivery of nanoparticles to the target site. In this study, we successfully incorporated a hydrophobic drug, bortezomib (Bor), into folic acid (FA)-conjugated Cs/Chs self-assembled NPs (Bor/Cs/Chs-FA) for colorectal cancer therapy. The particle size and polydispersity index of Bor/Cs/Chs-FA were ∼196.5 ± 1.2 nm and ∼0.21 ± 0.5, respectively. A pH-dependent release profile was observed, facilitating cancer cell-targeted drug release under an acidic tumor microenvironment. Moreover, in vitro data revealed enhanced cellular uptake and apoptosis in folate receptor-expressing colorectal cancer cells (HCT-116 and HT-29) as compared to that in lung cancer cells (A549), which do not express folate receptors. Furthermore, intravenous administration of Bor/Cs/Chs-FA in a HCT-116 bearing xenograft mouse model showed that the NPs were a safe and effective drug delivery system. The results suggest that folate-targeted nanoparticle can be effectively applied for efficient chemotherapy of colorectal cancer.
Collapse
Affiliation(s)
- Zar Chi Soe
- College of Pharmacy, Yeungnam University, Gyeongsan 712749, Republic of Korea
- Department of Pharmaceutics, University of Pharmacy (Yangon), Yangon 11031, Myanmar
| | - Bijay Kumar Poudel
- College of Pharmacy, Yeungnam University, Gyeongsan 712749, Republic of Korea
| | - Hanh Thuy Nguyen
- College of Pharmacy, Yeungnam University, Gyeongsan 712749, Republic of Korea
| | - Raj Kumar Thapa
- College of Pharmacy, Yeungnam University, Gyeongsan 712749, Republic of Korea
| | - Wenquan Ou
- College of Pharmacy, Yeungnam University, Gyeongsan 712749, Republic of Korea
| | - Milan Gautam
- College of Pharmacy, Yeungnam University, Gyeongsan 712749, Republic of Korea
| | - Kishwor Poudel
- College of Pharmacy, Yeungnam University, Gyeongsan 712749, Republic of Korea
| | - Sung Giu Jin
- Department of Pharmaceutical Engineering, Dankook University, Cheonan 31116, Republic of Korea
| | - Jee-Heon Jeong
- College of Pharmacy, Yeungnam University, Gyeongsan 712749, Republic of Korea
| | - Sae Kwang Ku
- College of Korean Medicine, Haany University, Gyeongsan 712715, Republic of Korea
| | - Han-Gon Choi
- College of Pharmacy, Hanyang University, Ansan 426791, Republic of Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, Gyeongsan 712749, Republic of Korea
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, Gyeongsan 712749, Republic of Korea
| |
Collapse
|
31
|
Singhi L, Sagili KD, Sharath BN, Bhandari K, Dadul PK, Gautam M, Ravichandra C, Chadha S, Satyanarayana S. Non-response to first-line anti-tuberculosis treatment in Sikkim, India: a risk-factor analysis study. Public Health Action 2018; 8:162-168. [PMID: 30775275 DOI: 10.5588/pha.18.0026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 04/23/2018] [Accepted: 09/06/2018] [Indexed: 02/06/2023] Open
Abstract
Setting: Sikkim, India, has the highest proportion of tuberculosis (TB) patients on first-line anti-tuberculosis regimens with the outcome 'failure' or 'shifted to regimen for multidrug-resistant TB (MDR-TB)'. Objective: To assess the factors associated with non-response to treatment, i.e., 'failure' or 'shifted to MDR-TB regimen'. Methods: We conducted a retrospective cohort study using Revised National Tuberculosis Control Programme data of all TB patients registered in 2015 for first-line TB treatment. In addition, we interviewed 42 patients who had not responded to treatment to ascertain their current status. Results: Of 1508 patients enrolled for treatment, about 9% were classified as non-response to treatment. Patient factors associated with non-response were urban setting (adjusted odds ratio [aOR] 2.39, 95%CI 1.22-4.67), ethnicity (being an Indian tribal, aOR 1.73, 95%CI 1.17-2.57, Indian [other] aOR 1.83, 95%CI 1.29-2.60 compared to patients of Nepali origin) and those on retreatment (aOR 2.40, 95%CI 1.99-2.91). Of the patients interviewed, 28 (67%) had received treatment for drug-resistant TB. Conclusion: In Sikkim, one in 11 patients had not responded to first-line anti-tuberculosis treatment. Host-pathogen genetics and socio-behavioural studies may be required to understand the reasons for the differences in non-response, particularly among ethnic groups.
Collapse
Affiliation(s)
| | - K D Sagili
- International Union Against Tuberculosis and Lung Disease South-East Asia Office, New Delhi, India
| | - B N Sharath
- ESIC (Employees' State Insurance Act) Medical College and Post Graduate Institute of Medical Science and Research, Bangalore, India
| | | | | | | | | | - S Chadha
- International Union Against Tuberculosis and Lung Disease South-East Asia Office, New Delhi, India
| | - S Satyanarayana
- International Union Against Tuberculosis and Lung Disease South-East Asia Office, New Delhi, India
| |
Collapse
|
32
|
Gupta B, Poudel BK, Ruttala HB, Regmi S, Pathak S, Gautam M, Jin SG, Jeong JH, Choi HG, Ku SK, Yong CS, Kim JO. Hyaluronic acid-capped compact silica-supported mesoporous titania nanoparticles for ligand-directed delivery of doxorubicin. Acta Biomater 2018; 80:364-377. [PMID: 30201431 DOI: 10.1016/j.actbio.2018.09.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [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: 04/24/2018] [Revised: 09/04/2018] [Accepted: 09/06/2018] [Indexed: 12/26/2022]
Abstract
Mesoporous titania nanoparticles (MTN), owing to their high surface area to volume ratio and tunable pore sizes, appear capable of delivering sizable amounts of drug payloads, and hence, show considerable promise as drug delivery candidates in cancer therapy. We designed silica-supported MTN (MTNst) coated with hyaluronic acid (HA) to effectively deliver doxorubicin (DOX) for breast cancer therapy. The HA coating served a dual purpose of stabilizing the payload in the carriers as well as actively targeting the nanodevices to CD44 receptors. The so-formed HA-coated MTNst carrying DOX (HA/DOX-MTNst) had spheroid particles with a considerable drug-loading capacity and showed significantly superior in vitro cytotoxicity against MDA-MB-231 cells as compared to free DOX. HA/DOX-MTNst markedly improved the cellular uptake of DOX in an apparently CD44 receptor-dependent manner, and increased the number of apoptotic cells as compared to free DOX. These nanoplatforms accumulated in large quantities in the tumors of MDA-MB-231 xenograft tumor-bearing mice, where they significantly enhanced the inhibition of tumor growth compared to that observed with free DOX with no signs of acute toxicity. Based on these excellent results, we deduced that HA/DOX-MTNst could be successfully used for targeted breast cancer therapy. STATEMENT OF SIGNIFICANCE: This is the first study to use silica-supported mesoporous titania nanoparticles (MTNst) for doxorubicin (DOX) delivery to treat breast cancer, which exhibited effective and enhanced in vitro and in vivo apoptosis and tumor growth inhibition. Solid silica was used to support the mesoporous TiO2 resulting in MTNst, which efficiently incorporated a high DOX payload. The hyaluronic acid (HA) coating over the MTNst surface served a dual purpose of first, stabilizing DOX inside the MTNst (capping agent), and second, directing the nanoplatform device to CD44 receptors that are highly expressed in MDA-MB-231 cells (targeting ligand). The NPs exhibited highly efficacious in vitro tumor-cell killing and excellent in vivo tumor regression, highlighting the enormous promise of this system for breast cancer therapy.
Collapse
Affiliation(s)
- Biki Gupta
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Bijay Kumar Poudel
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Hima Bindu Ruttala
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Shobha Regmi
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Shiva Pathak
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Milan Gautam
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Sung Giu Jin
- Department of Pharmaceutical Engineering, Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan 31116, Republic of Korea
| | - Jee-Heon Jeong
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Han-Gon Choi
- College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, 55, Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, Republic of Korea
| | - Sae Kwang Ku
- College of Korean Medicine, Daegu Haany University, Gyeongsan 712-702, Republic of Korea.
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Republic of Korea.
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, Republic of Korea.
| |
Collapse
|
33
|
Gurung B, Shrestha R, Shrestha S, Singh M, Koirala A, Chataut S, Tuladhar S, Shrestha S, Ghimire B, Shrestha M, Gautam M, Dhakal H. P3.09-09 “Prevalence of Epidermal Growth Factor Receptor Mutation in Non-Small Cell Carcinoma Lungs at a Cancer Center in Nepal”. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1778] [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]
|
34
|
Poudel BK, Soe ZC, Ruttala HB, Gupta B, Ramasamy T, Thapa RK, Gautam M, Ou W, Nguyen HT, Jeong JH, Jin SG, Choi HG, Yong CS, Kim JO. In situ fabrication of mesoporous silica-coated silver-gold hollow nanoshell for remotely controllable chemo-photothermal therapy via phase-change molecule as gatekeepers. Int J Pharm 2018; 548:92-103. [DOI: 10.1016/j.ijpharm.2018.06.056] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 06/18/2018] [Accepted: 06/25/2018] [Indexed: 10/28/2022]
|
35
|
Dhungel S, Malla R, Adhikari C, Maskey A, Rajbhandari R, Sharma R, Nepal H, Rauniyar B, Yadav D, Limbu D, Gautam M, Adhikari A, Dhungel S, Upadhyay H. Door-to-balloon time and the determining factors in a tertiary cardiac center in Nepal. Indian Heart J 2018; 70 Suppl 3:S309-S312. [PMID: 30595281 PMCID: PMC6309874 DOI: 10.1016/j.ihj.2018.07.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 11/16/2017] [Revised: 07/18/2018] [Accepted: 07/21/2018] [Indexed: 11/28/2022] Open
Abstract
Background Door-to-balloon (DTB) time of 90 min during primary angioplasty is considered as the benchmark duration. Shorter DTB time is preferable, and longer duration can have poor clinical outcomes. Methods A cross-sectional observational study of three months in Shahid Gangalal National Heart Center was conducted in which all patients undergoing primary angioplasty were included. The DTB time was calculated, and the different determining factors were studied. Results Seventy-nine patients undergoing primary percutaneous intervention were studied. The median DTB time was 79 minutes (Interquartile range [IQR] 59–115 min). Forty-six (58.2%) patients had a DTB time of less than 90 min. DTB time varied significantly with direct visit vs transfer (p = 0.029) and office time visit (9 am–5 pm) vs off time (5 pm–9 am) (p = 0.012). DTB time did not differ between any infarct-related vessels (p = 0.471), number of vessels involved (p = 0.638), and the added procedures (defibrillation, thrombosuction, and temporary pacemaker insertion) (p = 0.682) during angioplasty. No significant differences were recorded according to age (p = 0.330), gender (p = 0.254), hypertension (p = 0.073), diabetes (p = 0.487), heart failure (p = 0.316), and baseline left ventricular ejection fraction (LVEF) (p = 0.819). Conclusion The median DTB time in primary angioplasty was less than 90 minutes. The significant determining factors were timing of hospital visit (office vs off time) and type of visit (direct vs transfer). There can be improvement in factors determining DTB time to lower it further.
Collapse
Affiliation(s)
- Sachin Dhungel
- College of Medical Sciences, Nepal; Interventional Cardiology Fellow Training, SGNHC, Nepal.
| | - Rabi Malla
- Shahid Gangalal National Heart Center (SGNHC), Nepal
| | | | - Arun Maskey
- Shahid Gangalal National Heart Center (SGNHC), Nepal
| | | | - Ranjit Sharma
- Shahid Gangalal National Heart Center (SGNHC), Nepal
| | | | | | | | - Deepak Limbu
- Shahid Gangalal National Heart Center (SGNHC), Nepal
| | - Milan Gautam
- Shahid Gangalal National Heart Center (SGNHC), Nepal
| | - Ajay Adhikari
- Cardiology Resident, National Academy of Medical Science, Nepal
| | | | | |
Collapse
|
36
|
Shrestha R, McKenzie JS, Gautam M, Adhikary R, Pandey K, Koirala P, Bc GB, Miller LC, Collins-Emerson J, Craig SB, Shrestha S, Heuer C. Determinants of clinical leptospirosis in Nepal. Zoonoses Public Health 2018; 65:972-983. [PMID: 30144290 DOI: 10.1111/zph.12516] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 11/14/2017] [Revised: 06/13/2018] [Accepted: 07/27/2018] [Indexed: 11/30/2022]
Abstract
Leptospirosis is an important zoonotic disease in Nepal; however, there is a lack of information on sources of leptospirosis infection for people and associated risk factors. We implemented a case-control study nested within a cross-sectional survey to investigate zoonotic risks of human leptospirosis among adult, febrile patients seeking treatment in healthcare centres in Kaski District, Nepal, from April to October 2013. The study population was 239 febrile patients; the data consisted of paired blood samples; questionnaires on clinical symptoms; occupational, environmental and animal exposures; and a blood sample from animals in the household. In total, 63 cattle, 92 buffalo, 181 goats, 20 dogs and 14 rodents from 119 households were blood sampled. Serology was performed on the samples using the microscopic agglutination test (MAT) for a panel of 20 serovars with a starting dilution of 1:50. Clinical leptospirosis was defined as a titre of 1:400 or stronger, or a 4-fold or greater rise between acute and convalescent titres, or evidence of seroconversion for one or more serovars represented by a titre of <1:50 in the acute sample and a titre of ≥1:100 in the convalescent sample. The prevalence of clinical leptospirosis was 5.4% (95% CI 2.6%-8.3%). The most common symptoms among recruited participants were loss of appetite and lethargy followed by chills, profuse sweating and backache. No individual clinical symptom nor combination of any two symptoms was significantly associated with clinical leptospirosis. However, owning goats (OR 1.3, CI 95% 1.05-1.66), working in rice fields (OR 1.3, CI 95% 1.11-1.72) and male gender (OR 4, CI 95% 1.12-17.26) significantly increased the risk of clinical leptospirosis in humans. Findings suggest that leptospirosis should be considered in the clinical differential diagnosis among febrile adult patients in Nepal, especially for men, goat owners and/or those who work in rice fields.
Collapse
Affiliation(s)
- Rupesh Shrestha
- School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - Joanna S McKenzie
- School of Veterinary Science, Massey University, Palmerston North, New Zealand
| | - Milan Gautam
- Study of Zoonotic Risks for Human Leptospirosis Nepal Project, Child Health and Environment Save Society (CHESS), Pokhara, Nepal
| | | | | | | | | | | | | | - Scott B Craig
- School of Biomedical Science, Queensland University of Technology, Brisbane, Queensland, Australia.,WHO Leptospirosis Laboratory, Forensic and Scientific Service, Brisbane, Queensland, Australia
| | - Sanjaya Shrestha
- Walter Reed/AFRIMS Research Unit Nepal (WARUN), Kathmandu, Nepal
| | - Cord Heuer
- School of Veterinary Science, Massey University, Palmerston North, New Zealand
| |
Collapse
|
37
|
Ray S, Gautam M, Prasoon P. Postoperative pain in rats and its alleviation with neuropeptide Y. J ANAT SOC INDIA 2018. [DOI: 10.1016/j.jasi.2018.06.032] [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]
|
38
|
Gupta B, Ruttala HB, Poudel BK, Pathak S, Regmi S, Gautam M, Poudel K, Sung MH, Ou W, Jin SG, Jeong JH, Ku SK, Choi HG, Yong CS, Kim JO. Polyamino Acid Layer-by-Layer (LbL) Constructed Silica-Supported Mesoporous Titania Nanocarriers for Stimuli-Responsive Delivery of microRNA 708 and Paclitaxel for Combined Chemotherapy. ACS Appl Mater Interfaces 2018; 10:24392-24405. [PMID: 29978708 DOI: 10.1021/acsami.8b06642] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Cellular Fas-associated protein with death domain-like interleukin-1β-converting enzyme-inhibitory protein (c-FLIP), often strongly expressed in numerous cancers, plays a pivotal role in thwarting apoptosis and inducing chemotherapy resistance in cancer. An integrated approach combining chemotherapy with suppression of c-FLIP levels could prove paramount in the treatment of cancers with c-FLIP overexpression. In this study, we utilized a polymeric layer-by-layer (LbL) assembly of silica-supported mesoporous titania nanoparticles (MTNst) to co-deliver paclitaxel (PTX) and microRNA 708 (miR708) for simultaneous chemotherapy and c-FLIP suppression in colorectal carcinoma. The resulting LbL miR708/PTX-MTNst showed dose-dependent cytotoxicity in HCT-116 and DLD-1 colorectal carcinoma cell lines, which was remarkably superior to that of free PTX or LbL PTX-MTNst. LbL miR708/PTX-MTNst strongly inhibited c-FLIP expression and resulted in increased expression of proapoptotic proteins. In DLD-1 xenograft tumor-bearing mice, the nanoparticles accumulated in the tumor, resulting in remarkable tumor regression, with the PTX and miR708-loaded nanoparticles showing significantly greater inhibitory effects than the free PTX or PTX-loaded nanoparticles. Immunohistochemical analyses of the tumors further confirmed the remarkable apoptotic and antiproliferative effects of the nanoparticles, whereas organ histology reinforced the biocompatibility of the system. Therefore, the LbL miR708/PTX-MTNst system, owing to its ability to deliver both chemotherapeutic drug and inhibitory miRNA to the tumor site, shows great potential to treat colorectal carcinoma in clinical settings.
Collapse
Affiliation(s)
- Biki Gupta
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Hima Bindu Ruttala
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Bijay Kumar Poudel
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Shiva Pathak
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Shobha Regmi
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Milan Gautam
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Kishwor Poudel
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Min Hyun Sung
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Wenquan Ou
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Sung Giu Jin
- Department of Pharmaceutical Engineering , Dankook University , 119 Dandae-ro , Dongnam-gu, Cheonan 31116 , Republic of Korea
| | - Jee-Heon Jeong
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Sae Kwang Ku
- College of Korean Medicine , Daegu Haany University , Gyeongsan 712-702 , Republic of Korea
| | - Han-Gon Choi
- College of Pharmacy, Institute of Pharmaceutical Science and Technology , Hanyang University , 55, Hanyangdaehak-ro , Sangnok-gu, Ansan 426-791 , Republic of Korea
| | - Chul Soon Yong
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| | - Jong Oh Kim
- College of Pharmacy , Yeungnam University , 214-1, Dae-Dong , Gyeongsan 712-749 , Republic of Korea
| |
Collapse
|
39
|
Gautam M, Poudel K, Yong CS, Kim JO. Prussian blue nanoparticles: Synthesis, surface modification, and application in cancer treatment. Int J Pharm 2018; 549:31-49. [PMID: 30053487 DOI: 10.1016/j.ijpharm.2018.07.055] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [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: 05/03/2018] [Revised: 07/22/2018] [Accepted: 07/23/2018] [Indexed: 12/17/2022]
Abstract
This review outlines recently developed Prussian blue nanoparticle (PB NPs)-based multimodal imaging-guided chemo-photothermal strategies for cancer diagnosis and treatment in order to provide insight into the future of the field. The primary limitation of existing therapeutics is the lack of selectivity in drug delivery: they target healthy and cancerous cells alike. In this paper, we provide a thorough review of diverse synthetic and surface engineering techniques for PB NP fabrication. We have elucidated the various targeting approaches employed to deliver the therapeutic and imaging ligands into the tumor area, and outlined methods for enhancement of the tumor ablative ability of the NPS, including several important combinatorial approaches. In addition, we have summarized different in vitro and in vivo effects of PB NP-based therapies used to overcome both systemic and tumor-associated local barriers. An important new approach - PB NP-based immune drug delivery, which is an exciting and promising strategy to overcome cancer resistance and tumor recurrence - has been discussed. Finally, we have discussed the current understanding of the toxicological effects of PB NPs and PB NP-based therapeutics. We conclude that PB NP-based multimodal imaging-guided chemo-photothermal therapy offers new treatment strategies to overcome current hurdles in cancer diagnosis and treatment.
Collapse
Affiliation(s)
- Milan Gautam
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Kishwor Poudel
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea.
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 214-1 Dae-Dong, Gyeongsan 712-749, Republic of Korea.
| |
Collapse
|
40
|
Pathak S, Regmi S, Nguyen TT, Gupta B, Gautam M, Yong CS, Kim JO, Son Y, Kim JR, Park MH, Bae YK, Park SY, Jeong D, Yook S, Jeong JH. Polymeric microsphere-facilitated site-specific delivery of quercetin prevents senescence of pancreatic islets in vivo and improves transplantation outcomes in mouse model of diabetes. Acta Biomater 2018; 75:287-299. [PMID: 29883808 DOI: 10.1016/j.actbio.2018.06.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 05/02/2018] [Accepted: 06/03/2018] [Indexed: 01/06/2023]
Abstract
Attenuation of senescence progression may be attractive way to preserve the functionality of pancreatic islets (PI) after transplantation. In this study, we developed a model for in vitro induction of premature senescence in rat PI and showed the effectiveness of quercetin (QU) to prevent the senescence. To provide targeted-delivery of QU to the PI after transplantation, we prepared the hybrid clusters (HC) of islet single cells (ISC) and QU-loaded polymeric microspheres (QU; ∼7.55 ng HC-1). Long-term culture of the HC revealed reduced levels of reactive oxygen species and decreased expression of senescence-associated beta galactosidase, Rb, p53, p16, and p21 compared to that of the control islets. Transplantation of HC into subcutaneous space of the immune-deficient mice produced better glycemic control compared to the control islets or the ICC-transplanted mice. SA-β-Gal staining of the in vivo transplanted HC sample showed lower intensity compared to that of the control islets or the islet cell clusters. Thus, in situ delivery of therapeutic agent may be a promising approach to improve therapeutic outcomes in cell therapy. STATEMENT OF SIGNIFICANCE In this study, we aimed to improve outcomes in islet transplantation using in situ delivery of quercetin to pancreatic islets, using polymeric microspheres. We prepared prolonged release-type microspheres and constructed hybrid clusters of pancreatic islets and the microspheres using hanging drop method. The presence of quercetin in the cellular microenvironment attenuated the progression of senescence in the pancreatic islets in a long-term in vitro culture. Moreover, transplantation of the hybrid clusters in the diabetic mice produced better glycemic control compared to that of the control islets. In addition, quercetin delayed the progression of senescence in the pancreatic islets after in vivo transplantation. Thus, local delivery of antioxidants like quercetin may be an attractive way to improve outcomes in cell therapy.
Collapse
|
41
|
Soe ZC, Thapa RK, Ou W, Gautam M, Nguyen HT, Jin SG, Ku SK, Oh KT, Choi HG, Yong CS, Kim JO. Folate receptor-mediated celastrol and irinotecan combination delivery using liposomes for effective chemotherapy. Colloids Surf B Biointerfaces 2018; 170:718-728. [PMID: 30005409 DOI: 10.1016/j.colsurfb.2018.07.013] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [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: 04/22/2018] [Revised: 06/17/2018] [Accepted: 07/06/2018] [Indexed: 01/08/2023]
Abstract
Drug targeting using functionalized nanoparticles provides a new standard in anticancer therapy. Liposomes, safe and effective drug delivery carriers, can incorporate both hydrophilic and hydrophobic drugs for combination chemotherapy treatment of cancers. The objectives of the current study were to synthesize and test the effectiveness of a nanotechnology-based strategy utilizing folic acid (FA)-conjugated liposomes that incorporate both celastrol (Cs) and irinotecan (Ir) for targeted breast cancer therapy. Our results revealed the successful preparation of Cs and Ir-loaded folate-targeted liposomes (Lipo/Cs/Ir-FA) with a small particle size (∼190 nm) and polydispersity index (∼0.10). The formulation exhibited higher drug release profiles for both Ir and Cs at pH 5.0 compared to those at physiological pH, favoring cancer cell-targeted release. Furthermore, in vitro cell studies showed high uptake and enhanced apoptosis in folate receptor-positive breast cancer cells (MCF-7 and MDA-MB-231), but not in folate receptor-negative lung cancer cells (A549). Moreover, an in vivo study in a mouse tumor model using MDA-MB-231 xenografts supported effective drug delivery behavior of the folate-conjugated liposomes by selective targeting of tumor tissue and minimizing systemic adverse effects. Therefore, our formulation could provide an effective therapy for targeted cancer treatment.
Collapse
Affiliation(s)
- Zar Chi Soe
- College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan, 712-749, Republic of Korea
| | - Raj Kumar Thapa
- College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan, 712-749, Republic of Korea
| | - Wenquan Ou
- College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan, 712-749, Republic of Korea
| | - Milan Gautam
- College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan, 712-749, Republic of Korea
| | - Hanh Thuy Nguyen
- College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan, 712-749, Republic of Korea
| | - Sung Giu Jin
- Department of Pharmaceutical Engineering, Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan, 31116, Republic of Korea
| | - Sae Kwang Ku
- College of Korean Medicine, Daegu Haany University, Gyeongsan, 712-715, Republic of Korea
| | - Kyung Taek Oh
- College of Pharmacy, Chung-Ang University, 221 Heuksuk-dong Dongjak-gu, Seoul, 156-756, Republic of Korea
| | - Han-Gon Choi
- College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, 426-791, Republic of Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan, 712-749, Republic of Korea.
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 214-1, Dae-dong, Gyeongsan, 712-749, Republic of Korea.
| |
Collapse
|
42
|
Gautam M, Ku SK, Kim JO, Byeon JH. A scalable on-demand platform to assemble base nanocarriers for combination cancer therapy. Nanoscale 2018; 10:11737-11744. [PMID: 29920574 DOI: 10.1039/c8nr03159b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Chemophototherapy is an advanced cancer therapeutic that uses photothermal nanocarriers (NCs) responsive to near-infrared (NIR) light. For the past decade, chemophototherapy has been investigated intensively for clinical translation, and continuous-flow production of biofunctional compounds (NCs, drugs, probes, nanocomposites) has received increasing attention for future therapeutics. However, in situ supply of a stimuli-responsive inorganic core and subsequent tight drug loading on the core are challenging tasks in the practical use of on-demand nanomedicines. Thus, in this study, we designed and evaluated both in vitro and in vivo models of an aero-hydro-aero single-pass production system for chemophotothermally active NCs. We prepare tightly-drug-loadable cores (titanium peroxide [yTiO2] nanovesicles [NVs]) using hydrogen flame pyrolysis of vaporized TiCl4 (aero) and successive ultrasonic H2O2 treatment (hydro). The NVs formed were incorporated with graphene oxide (GO), doxorubicin (D), and polyethylene glycol (P) in a spray to form GO-yTiO2@DP NCs (aero). The NVs' tight DP loading and endothermic effect induced greater, sustained D release and tumor-selective distribution, even for hyperthermic activity. The results showed the route developed may be a stepping stone to scalable, reconfigurable production for on-demand chemophotothermal therapeutics.
Collapse
Affiliation(s)
- Milan Gautam
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea.
| | | | | | | |
Collapse
|
43
|
Ou W, Thapa RK, Jiang L, Soe ZC, Gautam M, Chang JH, Jeong JH, Ku SK, Choi HG, Yong CS, Kim JO. Regulatory T cell-targeted hybrid nanoparticles combined with immuno-checkpoint blockage for cancer immunotherapy. J Control Release 2018; 281:84-96. [PMID: 29777794 DOI: 10.1016/j.jconrel.2018.05.018] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [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] [Revised: 04/28/2018] [Accepted: 05/16/2018] [Indexed: 12/16/2022]
Abstract
Immunosuppression in tumor microenvironments induced by regulatory T (Treg) cells is regarded a critical mechanism of tumor immune escape and poses a major impediment to cancer immunotherapy. In this study, we developed tLyp1 peptide-conjugated hybrid nanoparticles for targeting Treg cells in the tumor microenvironment. The tLyp1 peptide-modified hybrid nanoparticles presented good stability and effective targeting to Treg cells, and they enhanced the effect of imatinib in downregulating Treg cell suppression through inhibition of STAT3 and STAT5 phosphorylation. In addition, an in vivo study revealed high tumor accumulation of the hybrid nanoparticle. Specifically, prolonged survival rate, enhanced tumor inhibition, reduced intratumoral Treg cells, and elevated intratumoral CD8+ T cells against tumor were observed when combined with checkpoint-blockade by using anti-cytotoxic T-lymphocyte antigen-4 antibody. This study provided groundwork for a repertoire of nanoparticle-based drugs for targeting and modulating Treg cell function in the tumor microenvironment and for improving antitumor immunotherapy.
Collapse
Affiliation(s)
- Wenquan Ou
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, South Korea
| | - Raj Kumar Thapa
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, South Korea
| | - Liyuan Jiang
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, South Korea
| | - Zar Chi Soe
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, South Korea
| | - Milan Gautam
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, South Korea
| | - Jae-Hoon Chang
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, South Korea
| | - Jee-Heon Jeong
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, South Korea
| | - Sae Kwang Ku
- Department of Anatomy and Histology, College of Korean Medicine, Daegu Haany University, Gyeongsan 712-715, South Korea
| | - Han-Gon Choi
- College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, 55, Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, South Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, South Korea.
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyeongsan 712-749, South Korea.
| |
Collapse
|
44
|
Gupta B, Poudel BK, Regmi S, Pathak S, Ruttala HB, Gautam M, An GJ, Jeong JH, Choi HG, Yong CS, Kim JO. Paclitaxel and Erlotinib-co-loaded Solid Lipid Core Nanocapsules: Assessment of Physicochemical Characteristics and Cytotoxicity in Non-small Cell Lung Cancer. Pharm Res 2018. [DOI: 10.1007/s11095-017-2337-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
45
|
Dhungel S, Malla R, Ahikari C, Maskey A, Rajbhandari R, Sharma D, KC MB, Rauniyar B, Limbu D, Gautam M, Adhikari A, Chalise H. Prehospital Events in ST- Elevation Myocardial Infarction Undergoing Primary Angioplasty. JNMA J Nepal Med Assoc 2017. [DOI: 10.31729/jnma.3386] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Introduction: Pre-hospital delay includes time from onset of symptoms of myocardial infarction till arrival to emergency room of the hospital. This defines time from symptom onset to first medical contact and first medical contact to emergency room. This study aims to study the prehospital events and determining factors in patients undergoing primary angioplasty.
Methods: This was a cross sectional study in Shahid Gangalal National Heart Centre for three months. Timings of chest pain, first medical contact time, transfer time to hospital and overall pre-hospital time for PCI and risk factors were analysed.
Results: There were 79 cases with 66 (83.5%) males and 13 (16.5%) females with mean age 56±11.2 years. Risk factors were 60 (75.9%), smoking, 47 (59.5%) hypertension, 25 (31.6%) diabetes, 22 (27.8%) dyslipidaemia and 16 (20.3%) heart failure. Chest pain was maximum in 5 to 9 AM. The median prehospital delay was 300 minutes (5.0 hours) of which symptom to first medical contact was 165 minutes and first medical contact to hospital was 80 minutes. The longer median prehospital delay for hypertension, diabetes, female and age ≥50 years and the shorter for male, age less than 50 years, dyslipidemia and heart failure, though not statistically significant. Private transport was the preferred from symptom to first medical contact and ambulance for first medical contact to emergency room. Patients received in ER had aspirin 72 (91.1%), atorvastatin 54 (68.4%) and double anti-platelets 45 (57%).
Conclusions: Chest pain was common in morning and the prehospital delay can be minimized by improving time from symptom to first medical contact and first medical contact to Emergency room.
Keywords: cicardian pattern; prehospital delay; ST myocardial infarction.
Collapse
|
46
|
Gautam M, Stevenson MA, Lopez-Villalobos N, McLean V. Risk Factors for Culling, Sales and Deaths in New Zealand Dairy Goat Herds, 2000-2009. Front Vet Sci 2017; 4:191. [PMID: 29177156 PMCID: PMC5686048 DOI: 10.3389/fvets.2017.00191] [Citation(s) in RCA: 17] [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: 05/15/2017] [Accepted: 10/23/2017] [Indexed: 11/29/2022] Open
Abstract
The aim of this study was to identify risk factors for culling, sales and deaths in intensively managed dairy goat herds in New Zealand. A data set provided by the New Zealand Dairy Goat Cooperative (n = 13,197 does) was analyzed using a Cox proportional hazard model. The outcome of interest was length of productive life (LPL), defined as the number of days from the date of second kidding to the date of removal from the herd or the date on which follow-up was terminated, whichever occurred first. Milk solids yield in the first lactation (MSL1) as a predictor of LPL was parameterized in the model as a penalized spline term. To account for MSL1 violating the proportional hazards assumption of the Cox model, LPL was divided into two intervals: T1 (less than or equal to 730 days from the date of second kidding) and T2 (greater than 730 days from the date of second kidding). MSL1 was then included in the model as a time-dependent covariate. A frailty term was included in the model to account for unmeasured, herd-level effects on LPL. During T1, the daily hazard of removal for does that produced 80 kg milk solids in the first lactation was 0.84 (95% CI 0.58–1.23) times the daily hazard of removal for does that produced 30 kg milk solids in the first lactation. During T2, the daily hazard of removal for does that produced 80 kg milk solids in the first lactation was 1.44 (95% CI 0.79–2.65) times the daily hazard of removal for does that produced 30 kg milk solids in the first lactation. We conclude that involuntary losses may be avoided if high MSL1 yielding does are preferentially managed from 2 years beyond the date of second kidding.
Collapse
Affiliation(s)
- Milan Gautam
- Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North, New Zealand
| | - Mark A Stevenson
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Nicolas Lopez-Villalobos
- Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North, New Zealand
| | | |
Collapse
|
47
|
Thapa RK, Nguyen HT, Gautam M, Shrestha A, Lee ES, Ku SK, Choi HG, Yong CS, Kim JO. Hydrophobic binding peptide-conjugated hybrid lipid-mesoporous silica nanoparticles for effective chemo-photothermal therapy of pancreatic cancer. Drug Deliv 2017; 24:1690-1702. [PMID: 29098877 PMCID: PMC8240994 DOI: 10.1080/10717544.2017.1396382] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [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: 08/30/2017] [Revised: 10/20/2017] [Accepted: 10/20/2017] [Indexed: 01/14/2023] Open
Abstract
Nanoparticle-based drug delivery systems are designed to reach tumor sites based on their enhanced permeation and retention effects. However, a lack of interaction of these nanoparticles with cancer cells might lead to reduced uptake in the tumors, which might compromise the therapeutic efficacy of the system. Therefore, we developed bortezomib and IR-820-loaded hybrid-lipid mesoporous silica nanoparticles conjugated with the hydrophobic-binding peptide, cyclosporine A (CsA), and referred to them as CLMSN/BIR. Upon reaching the tumor site, CsA interacts hydrophobically with the cancer cell membranes to allow effective uptake of the nanoparticles. Nanoparticles ∼160 nm in size were prepared and the stability of IR-820 significantly improved. High cellular uptake of the nanoparticles was evident with pronounced apoptotic effects in PANC-1 and MIA PaCa-2 cells that were mediated by the chemotherapeutic effect of bortezomib and the photothermal and reactive oxygen species generation effects of IR-820. An in vivo biodistribution study indicated there was high accumulation in the tumor with an enhanced photothermal effect in PANC-1 xenograft mouse tumors. Furthermore, enhanced antitumor effects in PANC-1 xenograft tumors were observed with minimal toxicity induction in the organs of mice. Cumulatively, these results indicated the promising effects of CLMSN/BIR for effective chemo-phototherapy of pancreatic cancers.
Collapse
Affiliation(s)
- Raj Kumar Thapa
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongsanbuk-do, Republic of Korea
| | - Hanh Thuy Nguyen
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongsanbuk-do, Republic of Korea
| | - Milan Gautam
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongsanbuk-do, Republic of Korea
| | - Aarajana Shrestha
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongsanbuk-do, Republic of Korea
| | - Eung Seok Lee
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongsanbuk-do, Republic of Korea
| | - Sae Kwang Ku
- College of Korean Medicine, Daegu Haany University, Gyeongsan, South Korea
| | - Han-Gon Choi
- College of Pharmacy, Hanyang University, Sangnok-gu, Ansan, Republic of Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongsanbuk-do, Republic of Korea
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongsanbuk-do, Republic of Korea
| |
Collapse
|
48
|
Affiliation(s)
- M Gautam
- Institute of Veterinary, Animal and Biomedical Sciences (IVABS), EpiCentre, Massey University, Private Bag 11-222, Palmerston North 4442, New Zealand
| | - A Ridler
- International Sheep Research Centre, IVABS, Massey University, Private Bag 11 222, Palmerston North, New Zealand
| | - PR Wilson
- Institute of Veterinary, Animal and Biomedical Sciences (IVABS), EpiCentre, Massey University, Private Bag 11-222, Palmerston North 4442, New Zealand
| | - C Heuer
- Institute of Veterinary, Animal and Biomedical Sciences (IVABS), EpiCentre, Massey University, Private Bag 11-222, Palmerston North 4442, New Zealand
| |
Collapse
|
49
|
Dhungel S, Malla R, Adhikari C, Maskey A, Rajbhandari R, Sharma R, Sharma D, Man Bhadhur KC, Adhikari A, Rauniyar B, Limbu D, Gautam M. Prehospital Events in ST- Elevation Myocardial Infarction Undergoing Primary Angioplasty. JNMA J Nepal Med Assoc 2017; 56:421-425. [PMID: 29453473] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023] Open
Abstract
INTRODUCTION Pre-hospital delay includes time from onset of symptoms of myocardial infarction till arrival to emergency room of the hospital. This defines time from symptom onset to first medical contact and first medical contact to emergency room. This study aims to study the prehospital events and determining factors in patients undergoing primary angioplasty. METHODS This was a cross sectional study in Shahid Gangalal National Heart Centre for three months. Timings of chest pain, first medical contact time, transfer time to hospital and overall pre-hospital time for PCI and risk factors were analysed. RESULTS There were 79 cases with 66 (83.5%) males and 13 (16.5%) females with mean age 56±11.2 years. Risk factors were 60 (75.9%), smoking, 47 (59.5%) hypertension, 25 (31.6%) diabetes, 22 (27.8%) dyslipidaemia and 16 (20.3%) heart failure. Chest pain was maximum in 5 to 9 AM. The median prehospital delay was 300 minutes (5.0 hours) of which symptom to first medical contact was 165 minutes and first medical contact to hospital was 80 minutes. The longer median prehospital delay for hypertension, diabetes, female and age ≥50 years and the shorter for male, age less than 50 years, dyslipidemia and heart failure, though not statistically significant. Private transport was the preferred from symptom to first medical contact and ambulance for first medical contact to emergency room. Patients received in ER had aspirin 72 (91.1%), atorvastatin 54 (68.4%) and double anti-platelets 45 (57%). CONCLUSIONS Chest pain was common in morning and the prehospital delay can be minimized by improving time from symptom to first medical contact and first medical contact to Emergency room.
Collapse
Affiliation(s)
- Sachin Dhungel
- Department of Cardiology, College of Medical Science, Bharatpur, Chitwan, Nepal
| | - Rabi Malla
- Shahid Gangalal National Heart Centre, Bansbari, Kathmandu, Nepal
| | | | - Arun Maskey
- Shahid Gangalal National Heart Centre, Bansbari, Kathmandu, Nepal
| | | | - Ranjit Sharma
- Shahid Gangalal National Heart Centre, Bansbari, Kathmandu, Nepal
| | - Deewakar Sharma
- Shahid Gangalal National Heart Centre, Bansbari, Kathmandu, Nepal
| | - K C Man Bhadhur
- Shahid Gangalal National Heart Centre, Bansbari, Kathmandu, Nepal
| | - Ajay Adhikari
- National Academy of Medical Sciences, Kathmandu, Nepal
| | - Binaya Rauniyar
- Shahid Gangalal National Heart Centre, Bansbari, Kathmandu, Nepal
| | - Dipak Limbu
- Shahid Gangalal National Heart Centre, Bansbari, Kathmandu, Nepal
| | - Milan Gautam
- Shahid Gangalal National Heart Centre, Bansbari, Kathmandu, Nepal
| |
Collapse
|
50
|
|