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Firoz F, Yousef T, Asser Y, Thaer RM, Sammour RMF. Thermo-activated in situ rectal gel preparation for Ibuprofen using eutectic mixture. Eur J Pharm Sci 2024; 200:106843. [PMID: 38950638 DOI: 10.1016/j.ejps.2024.106843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 06/05/2024] [Accepted: 06/24/2024] [Indexed: 07/03/2024]
Abstract
This study aimed to develop a thermosensitive in situ gel formulation for rectal delivery of Ibuprofen as an efficient alternative dosage form. Utilizing poloxamer 188, poloxamer 407, and HPMC via cold technique method, a thermosensitive in situ gel was successfully prepared. The concentration of Ibuprofen in the formulations was 1.2 % (w/w). The prepared gels underwent assessment for clarity, gelation temperature, gelation time, gel strength, spread ability, syringe-ability, pH, viscosity, FTIR, and drug content. The selected formulations exhibited a gelation temperature within the range of 30 °C to 36 °C, with consistent amount of drug soluble in the formulations (93 % - 110 %). Mucoadhesive studies, in vitro release tests, ex vivo modeling of drug release, kinetic studies modeling, and histopathology testing were also conducted. The formulation comprising 18 % poloxamer 407, 12 % poloxamer 188, and 1 % sodium chloride (FS15) demonstrated suitable gelation temperature and desirable drug release rate. In vitro drug release tests indicated completion within one hour for both FS10 (20 % P407 & 10 % P188) and FS15 (18 % P407 & 12 % P188), with consistent and predictable release patterns observed through kinetic modeling analysis. Microscopic histopathology examination confirmed the safety of the selected formula, exhibiting no irritation in the mucosal membrane of the sheep. In conclusion, Ibuprofen thermosensitive in situ gel presents a promising and convenient strategy as a rectal carrier and an alternative dosage form to solid suppositories.
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Affiliation(s)
- Fathima Firoz
- Bpharm graduate, Dubai Pharmacy College for Girls, Dubai, United Arab Emirates
| | - Tafika Yousef
- Bpharm graduate, Dubai Pharmacy College for Girls, Dubai, United Arab Emirates
| | - Yosra Asser
- Bpharm graduate, Dubai Pharmacy College for Girls, Dubai, United Arab Emirates
| | - Reem Mohammed Thaer
- Bpharm graduate, Dubai Pharmacy College for Girls, Dubai, United Arab Emirates
| | - Rana M F Sammour
- Pharmaceutics Department, Dubai Pharmacy College for Girls, Dubai, United Arab Emirates.
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2
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Tuladhar A, Shaver JC, McGee WA, Yu K, Dorn J, Horne JL, Alhamad DW, Hagan ML, Cooley MA, Zhong R, Bollag W, Johnson M, Hamrick MW, McGee-Lawrence ME. Prkd1 regulates the formation and repair of plasma membrane disruptions (PMD) in osteocytes. Bone 2024; 186:117147. [PMID: 38866124 PMCID: PMC11246118 DOI: 10.1016/j.bone.2024.117147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 05/21/2024] [Accepted: 06/03/2024] [Indexed: 06/14/2024]
Abstract
We and others have seen that osteocytes sense high-impact osteogenic mechanical loading via transient plasma membrane disruptions (PMDs) which initiate downstream mechanotransduction. However, a PMD must be repaired for the cell to survive this wounding event. Previous work suggested that the protein Prkd1 (also known as PKCμ) may be a critical component of this PMD repair process, but the specific role of Prkd1 in osteocyte mechanobiology had not yet been tested. We treated MLO-Y4 osteocytes with Prkd1 inhibitors (Go6976, kbNB 142-70, staurosporine) and generated an osteocyte-targeted (Dmp1-Cre) Prkd1 conditional knockout (CKO) mouse. PMD repair rate was measured via laser wounding and FM1-43 dye uptake, PMD formation and post-wounding survival were assessed via fluid flow shear stress (50 dyn/cm2), and in vitro osteocyte mechanotransduction was assessed via measurement of calcium signaling. To test the role of osteocyte Prkd1 in vivo, Prkd1 CKO and their wildtype (WT) littermates were subjected to 2 weeks of unilateral axial tibial loading and loading-induced changes in cortical bone mineral density, geometry, and formation were measured. Prkd1 inhibition or genetic deletion slowed osteocyte PMD repair rate and impaired post-wounding cell survival. These effects could largely be rescued by treating osteocytes with the FDA-approved synthetic copolymer Poloxamer 188 (P188), which was previously shown to facilitate membrane resealing and improve efficiency in the repair rate of PMD in skeletal muscle myocytes. In vivo, while both WT and Prkd1 CKO mice demonstrated anabolic responses to tibial loading, the magnitude of loading-induced increases in tibial BMD, cortical thickness, and periosteal mineralizing surface were blunted in Prkd1 CKO as compared to WT mice. Prkd1 CKO mice also tended to show a smaller relative difference in the number of osteocyte PMD in loaded limbs and showed greater lacunar vacancy, suggestive of impaired post-wounding osteocyte survival. While P188 treatment rescued loading-induced increases in BMD in the Prkd1 CKO mice, it surprisingly further suppressed loading-induced increases in cortical bone thickness and cortical bone formation. Taken together, these data suggest that Prkd1 may play a pivotal role in the regulation and repair of the PMD response in osteocytes and support the idea that PMD repair processes can be pharmacologically targeted to modulate downstream responses, but suggest limited utility of PMD repair-promoting P188 in improving bone anabolic responses to loading.
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Affiliation(s)
- Anik Tuladhar
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, GA, United States of America
| | - Joseph C Shaver
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, GA, United States of America
| | - Wesley A McGee
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, GA, United States of America
| | - Kanglun Yu
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, GA, United States of America
| | - Jennifer Dorn
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, GA, United States of America
| | - J Luke Horne
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, GA, United States of America
| | - Dima W Alhamad
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, GA, United States of America
| | - Mackenzie L Hagan
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, GA, United States of America
| | - Marion A Cooley
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia at Augusta University, Augusta, GA, United States of America
| | - Roger Zhong
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia at AugustaUniversity, Augusta, GA, United States of America
| | - Wendy Bollag
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, GA, United States of America; Charlie Norwood VA Medical Center, Augusta, GA, United States of America
| | - Maribeth Johnson
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia at AugustaUniversity, Augusta, GA, United States of America
| | - Mark W Hamrick
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, GA, United States of America
| | - Meghan E McGee-Lawrence
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, GA, United States of America.
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3
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Wu R, Koduri R, Cho M, Alatrash N, Nomellini V. Effects of poloxamer 188 on traumatic brain injury. Brain Behav Immun Health 2024; 38:100762. [PMID: 38590762 PMCID: PMC11000117 DOI: 10.1016/j.bbih.2024.100762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 03/15/2024] [Accepted: 03/28/2024] [Indexed: 04/10/2024] Open
Abstract
Traumatic Brain Injury (TBI) is a major cause of severe disability and death, resulting in significant health care and economic burden. Poloxamer 188, a synthetic tri-block copolymer approved by the FDA, has been studied for its potential effects on traumatic brain injury (TBI). The neuroprotective abilities of P188 have attracted significant attention. This systematic review aims to compile evidence of P188's effect on the treatment of TBI. A comprehensive literature search was conducted using PubMed, SCOPUS, and Google Scholar databases, which yielded 20 articles that satisfied the inclusion criteria. These articles have shown direct protective effects of P188 on brain tissue following TBI, including restitution of the increase cell membrane permeability, attenuation of neuronal necrosis and apoptosis, improvement of mitochondrial viability, reduction in axonal disruption, and restoration of the blood brain barrier. In animals, P188 has been shown to improve sensorimotor functions, as well as spatial learning and memory.
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Affiliation(s)
- Renqing Wu
- Division of Burn, Trauma, Acute, and Critical Care Surgery, Department of Surgery, UT Southwestern Medical Center, Dallas, TX, USA
| | - Roopa Koduri
- Division of Burn, Trauma, Acute, and Critical Care Surgery, Department of Surgery, UT Southwestern Medical Center, Dallas, TX, USA
| | - Michael Cho
- Department of Bioengineering, UT Arlington, Arlington, TX, USA
| | - Nagham Alatrash
- Division of Burn, Trauma, Acute, and Critical Care Surgery, Department of Surgery, UT Southwestern Medical Center, Dallas, TX, USA
| | - Vanessa Nomellini
- Division of Burn, Trauma, Acute, and Critical Care Surgery, Department of Surgery, UT Southwestern Medical Center, Dallas, TX, USA
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4
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Shi X, Rao R, Xu M, Dong M, Feng S, Huang Y, Zhou B. Methylcellulose improves dissociation quality of adult human primary cardiomyocytes. Heliyon 2024; 10:e31653. [PMID: 38841456 PMCID: PMC11152705 DOI: 10.1016/j.heliyon.2024.e31653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 05/16/2024] [Accepted: 05/20/2024] [Indexed: 06/07/2024] Open
Abstract
Obtaining high-quality adult human primary cardiomyocytes (hPCM) have been technically challenging due to isolation-induced biochemical and mechanical stress. Building upon a previous tissue slicing-assisted digestion method, we introduced polymers into the digestion solution to reduce mechanical damage to cells. We found that low-viscosity methylcellulose (MC) significantly improved hPCM viability and yield. Mechanistically, it protected cells from membrane damage, which led to decreased apoptosis and mitochondrial reactive oxygen species production. MC also improved the electrophysiological properties of hPCMs by maintaining the density of sodium channels. The effects on cell viability and cell yield effects were not recapitulated by MC of larger viscosities, other cellulose derivatives, nor shear protectants polyethylene glycol and polyvinyl alcohol. Finally, MC also enhanced the isolation efficiency and the culture quality of hPCMs from diseased ventricular myocardium, expanding its potential applications. Our findings showed that the isolation quality of hPCMs can be further improved through the addition of a polymer, rendering hPCMs a more reliable cellular model for cardiac research.
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Affiliation(s)
- Xun Shi
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, 167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Rongjia Rao
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, 167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Miaomiao Xu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, 167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Mengqi Dong
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, 167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Shanshan Feng
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, 167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Yafei Huang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, 167 North Lishi Road, Xicheng District, Beijing, 100037, China
| | - Bingying Zhou
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, 167 North Lishi Road, Xicheng District, Beijing, 100037, China
- Shenzhen Key Laboratory of Cardiovascular Disease, Fuwai Hospital Chinese Academy of Medical Science, Shenzhen, Shenzhen, China
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5
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Chen G, Douglas HF, Li Z, Cleveland WJ, Balzer C, Yannopolous D, Chen IYL, Obal D, Riess ML. Cardioprotection by Poloxamer 188 is Mediated through Increased Endothelial Nitric Oxide Production. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.18.593838. [PMID: 38826479 PMCID: PMC11142105 DOI: 10.1101/2024.05.18.593838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
Ischemia/reperfusion (I/R) injury significantly contributes to the morbidity and mortality associated with cardiac events. Poloxamer 188 (P188), a nonionic triblock copolymer, has been proposed to mitigate I/R injury by stabilizing cell membranes. However, the underlying mechanisms remain incompletely understood, particularly concerning endothelial cell function and nitric oxide (NO) production. We employed human induced pluripotent stem cell (iPSC)-derived cardiomyocytes (CMs) and endothelial cells (ECs) to elucidate the effects of P188 on cellular survival, function, and NO secretion under simulated I/R conditions. iPSC-CMs contractility and iPSC-ECs' NO production were assessed following exposure to P188. Further, an isolated heart model using Brown Norway rats subjected to I/R injury was utilized to evaluate the ex-vivo cardioprotective effects of P188, examining cardiac function and NO production, with and without the administration of a NO inhibitor. In iPSC-derived models, P188 significantly preserved CM contractile function and enhanced cell viability after hypoxia/reoxygenation. Remarkably, P188 treatment led to a pronounced increase in NO secretion in iPSC-ECs, a novel finding demonstrating endothelial protective effects beyond membrane stabilization. In the rat isolated heart model, administration of P188 during reperfusion notably improved cardiac function and reduced I/R injury markers. This cardioprotective effect was abrogated by NO inhibition, underscoring the pivotal role of NO. Additionally, a dose-dependent increase in NO production was observed in non-ischemic rat hearts treated with P188, further establishing the critical function of NO in P188 induced cardioprotection. In conclusion, our comprehensive study unveils a novel role of NO in mediating the protective effects of P188 against I/R injury. This mechanism is evident in both cellular models and intact rat hearts, highlighting the potential of P188 as a therapeutic agent against I/R injury. Our findings pave the way for further investigation into P188's therapeutic mechanisms and its potential application in clinical settings to mitigate I/R-related cardiac dysfunction.
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Chen L, Xiong Y, Chopp M, Pang H, Emanuele M, Zhang ZG, Mahmood A, Zhang Y. Vepoloxamer improves functional recovery in rat after traumatic brain injury: A dose-response and therapeutic window study. Neurochem Int 2024; 173:105659. [PMID: 38142856 PMCID: PMC10872547 DOI: 10.1016/j.neuint.2023.105659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/16/2023] [Accepted: 12/17/2023] [Indexed: 12/26/2023]
Abstract
Traumatic brain injury (TBI) is a major cause of death and disability worldwide. There are no effective therapies available for TBI patients. Vepoloxamer is an amphiphilic polyethylene-polypropylene-polyethylene tri-block copolymer that seals membranes and restores plasma membrane integrity in damaged cells. We previously demonstrated that treatment of TBI rats with Vepoloxamer improves functional recovery. However, additional studies are needed to potentially translate Vepoloxamer treatment from preclinical studies into clinical applications. We thus conducted a study to investigate dose-response and therapeutic window of Vepoloxamer on functional recovery of adult rats after TBI. To identify the most effective dose of Vepoloxamer, male Wistar adult rats with controlled cortical impact (CCI) injury were randomly treated with 0 (vehicle), 100, 300, or 600 mg/kg of Vepoloxamer, administered intravenously (IV) at 2 h after TBI. We then performed a therapeutic window study in which the rats were treated IV with the most effective single dose of Vepoloxamer at different time points of 2 h, 4 h, 1 day, or 3 days after TBI. A battery of cognitive and neurological tests was performed. Animals were killed 35 days after TBI for histopathological analysis. Dose-response experiments showed that Vepoloxamer at all three tested doses (100, 300, 600 mg/kg) administered 2 h post injury significantly improved cognitive functional recovery, whereas Vepoloxamer at doses of 300 and 600 mg/kg, but not the 100 mg/kg dose, significantly reduced lesion volume compared to saline treatment. However, Vepoloxamer at 300 mg/kg showed significantly improved neurological and cognitive outcomes than treatment with a dose of 600 mg/kg. In addition, our data demonstrated that the dose of 300 mg/kg of Vepoloxamer administered at 2 h, 4 h, 1 day, or 3 days post injury significantly improved neurological function compared with vehicle, whereas Vepoloxamer administered at 2 h or 4 h post injury significantly improved cognitive function compared with the 1-day and 3-day treatments, with the most robust effect administered at 2 h post injury. The present study demonstrated that Vepoloxamer improves functional recovery in a dose-and time-dependent manner, with therapeutic efficacy compared with vehicle evident even when the treatment is initiated 3 days post TBI in the rat.
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Affiliation(s)
- Liang Chen
- Department of Neurosurgery, Henry Ford Hospital, Detroit, MI, 48202, USA
| | - Ye Xiong
- Department of Neurosurgery, Henry Ford Hospital, Detroit, MI, 48202, USA
| | - Michael Chopp
- Department of Neurology, Henry Ford Hospital, Detroit, MI, 48202, USA; Department of Physics, Oakland University, Rochester, MI, 48309, USA
| | - Haiyan Pang
- Department of Neurosurgery, Henry Ford Hospital, Detroit, MI, 48202, USA
| | | | - Zheng Gang Zhang
- Department of Neurology, Henry Ford Hospital, Detroit, MI, 48202, USA
| | - Asim Mahmood
- Department of Neurosurgery, Henry Ford Hospital, Detroit, MI, 48202, USA
| | - Yanlu Zhang
- Department of Neurosurgery, Henry Ford Hospital, Detroit, MI, 48202, USA.
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7
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Foster EG, Sillman B, Liu Y, Summerlin M, Kumar V, Sajja BR, Cassidy AR, Edagwa B, Gendelman HE, Bade AN. Long-acting dolutegravir formulations prevent neurodevelopmental impairments in a mouse model. Front Pharmacol 2023; 14:1294579. [PMID: 38149054 PMCID: PMC10750158 DOI: 10.3389/fphar.2023.1294579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 11/28/2023] [Indexed: 12/28/2023] Open
Abstract
The World Health Organization has recommended dolutegravir (DTG) as a preferred first-line treatment for treatment naive and experienced people living with human immunodeficiency virus type one (PLWHIV). Based on these recommendations 15 million PLWHIV worldwide are expected to be treated with DTG regimens on or before 2025. This includes pregnant women. Current widespread use of DTG is linked to the drug's high potency, barrier to resistance, and cost-effectiveness. Despite such benefits, potential risks of DTG-linked fetal neurodevelopmental toxicity remain a concern. To this end, novel formulation strategies are urgently needed in order to maximize DTG's therapeutic potentials while limiting adverse events. In regard to potential maternal fetal toxicities, we hypothesized that injectable long-acting nanoformulated DTG (NDTG) could provide improved safety by reducing drug fetal exposures compared to orally administered native drug. To test this notion, we treated pregnant C3H/HeJ mice with daily oral native DTG at a human equivalent dosage (5 mg/kg; n = 6) or vehicle (control; n = 8). These were compared against pregnant mice injected with intramuscular (IM) NDTG formulations given at 45 (n = 3) or 25 (n = 4) mg/kg at one or two doses, respectively. Treatment began at gestation day (GD) 0.5. Magnetic resonance imaging scanning of live dams at GD 17.5 was performed to obtain T1 maps of the embryo brain to assess T1 relaxation times of drug-induced oxidative stress. Significantly lower T1 values were noted in daily oral native DTG-treated mice, whereas comparative T1 values were noted between control and NDTG-treated mice. This data reflected prevention of DTG-induced oxidative stress when delivered as NDTG. Proteomic profiling of embryo brain tissues harvested at GD 17.5 demonstrated reductions in oxidative stress, mitochondrial impairments, and amelioration of impaired neurogenesis and synaptogenesis in NDTG-treated mice. Pharmacokinetic (PK) tests determined that both daily oral native DTG and parenteral NDTG achieved clinically equivalent therapeutic plasma DTG levels in dams (4,000-6,500 ng/mL). Importantly, NDTG led to five-fold lower DTG concentrations in embryo brain tissues compared to daily oral administration. Altogether, our preliminary work suggests that long-acting drug delivery can limit DTG-linked neurodevelopmental deficits.
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Affiliation(s)
- Emma G. Foster
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
| | - Brady Sillman
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
| | - Yutong Liu
- Department of Radiology, University of Nebraska Medical Center, Omaha, NE, United States
| | - Micah Summerlin
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
| | - Vikas Kumar
- Department of Genetics, Cell Biology, and Anatomy, University of Nebraska Medical Center, Omaha, NE, United States
| | - Balasrinivasa R. Sajja
- Department of Radiology, University of Nebraska Medical Center, Omaha, NE, United States
| | - Adam R. Cassidy
- Departments of Psychiatry and Psychology & Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN, United States
| | - Benson Edagwa
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
| | - Howard E. Gendelman
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, United States
| | - Aditya N. Bade
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
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8
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Zha D, Wang S, Monaghan-Nichols P, Qian Y, Sampath V, Fu M. Mechanisms of Endothelial Cell Membrane Repair: Progress and Perspectives. Cells 2023; 12:2648. [PMID: 37998383 PMCID: PMC10670313 DOI: 10.3390/cells12222648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 11/25/2023] Open
Abstract
Endothelial cells are the crucial inner lining of blood vessels, which are pivotal in vascular homeostasis and integrity. However, these cells are perpetually subjected to a myriad of mechanical, chemical, and biological stresses that can compromise their plasma membranes. A sophisticated repair system involving key molecules, such as calcium, annexins, dysferlin, and MG53, is essential for maintaining endothelial viability. These components orchestrate complex mechanisms, including exocytosis and endocytosis, to repair membrane disruptions. Dysfunctions in this repair machinery, often exacerbated by aging, are linked to endothelial cell death, subsequently contributing to the onset of atherosclerosis and the progression of cardiovascular diseases (CVD) and stroke, major causes of mortality in the United States. Thus, identifying the core machinery for endothelial cell membrane repair is critically important for understanding the pathogenesis of CVD and stroke and developing novel therapeutic strategies for combating CVD and stroke. This review summarizes the recent advances in understanding the mechanisms of endothelial cell membrane repair. The future directions of this research area are also highlighted.
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Affiliation(s)
- Duoduo Zha
- Department of Biomedical Science, School of Medicine, University of Missouri Kansas City, 2411 Holmes Street, Kansas City, MO 64108, USA; (D.Z.); (P.M.-N.)
- The National Engineering Research Center for Bioengineering Drugs and Technologies, Institute of Translational Medicine, Nanchang University, 1299 Xuefu Rd, Honggu District, Nanchang 330031, China;
| | - Shizhen Wang
- Division of Biological and Biomedical Systems, School of Science and Engineering, University of Missouri Kansas City, 5009 Rockhill Road, Kansas City, MO 64110, USA;
| | - Paula Monaghan-Nichols
- Department of Biomedical Science, School of Medicine, University of Missouri Kansas City, 2411 Holmes Street, Kansas City, MO 64108, USA; (D.Z.); (P.M.-N.)
| | - Yisong Qian
- The National Engineering Research Center for Bioengineering Drugs and Technologies, Institute of Translational Medicine, Nanchang University, 1299 Xuefu Rd, Honggu District, Nanchang 330031, China;
| | - Venkatesh Sampath
- Department of Pediatric, Children’s Mercy Hospital, Children’s Mercy Research Institute, Kansas City, MO 64108, USA;
| | - Mingui Fu
- Department of Biomedical Science, School of Medicine, University of Missouri Kansas City, 2411 Holmes Street, Kansas City, MO 64108, USA; (D.Z.); (P.M.-N.)
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9
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Rawls A, Diviak BK, Smith CI, Severson GW, Acosta SA, Wilson-Rawls J. Pharmacotherapeutic Approaches to Treatment of Muscular Dystrophies. Biomolecules 2023; 13:1536. [PMID: 37892218 PMCID: PMC10605463 DOI: 10.3390/biom13101536] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
Muscular dystrophies are a heterogeneous group of genetic muscle-wasting disorders that are subdivided based on the region of the body impacted by muscle weakness as well as the functional activity of the underlying genetic mutations. A common feature of the pathophysiology of muscular dystrophies is chronic inflammation associated with the replacement of muscle mass with fibrotic scarring. With the progression of these disorders, many patients suffer cardiomyopathies with fibrosis of the cardiac tissue. Anti-inflammatory glucocorticoids represent the standard of care for Duchenne muscular dystrophy, the most common muscular dystrophy worldwide; however, long-term exposure to glucocorticoids results in highly adverse side effects, limiting their use. Thus, it is important to develop new pharmacotherapeutic approaches to limit inflammation and fibrosis to reduce muscle damage and promote repair. Here, we examine the pathophysiology, genetic background, and emerging therapeutic strategies for muscular dystrophies.
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Affiliation(s)
- Alan Rawls
- School of Life Sciences, Arizona State University, Tempe, AZ 85287-4501, USA; (B.K.D.); (C.I.S.); (G.W.S.); (S.A.A.)
| | - Bridget K. Diviak
- School of Life Sciences, Arizona State University, Tempe, AZ 85287-4501, USA; (B.K.D.); (C.I.S.); (G.W.S.); (S.A.A.)
- Molecular and Cellular Biology Graduate Program, School of Life Sciences, Tempe, AZ 85287 4501, USA
| | - Cameron I. Smith
- School of Life Sciences, Arizona State University, Tempe, AZ 85287-4501, USA; (B.K.D.); (C.I.S.); (G.W.S.); (S.A.A.)
- Molecular and Cellular Biology Graduate Program, School of Life Sciences, Tempe, AZ 85287 4501, USA
| | - Grant W. Severson
- School of Life Sciences, Arizona State University, Tempe, AZ 85287-4501, USA; (B.K.D.); (C.I.S.); (G.W.S.); (S.A.A.)
- Molecular and Cellular Biology Graduate Program, School of Life Sciences, Tempe, AZ 85287 4501, USA
| | - Sofia A. Acosta
- School of Life Sciences, Arizona State University, Tempe, AZ 85287-4501, USA; (B.K.D.); (C.I.S.); (G.W.S.); (S.A.A.)
- Molecular and Cellular Biology Graduate Program, School of Life Sciences, Tempe, AZ 85287 4501, USA
| | - Jeanne Wilson-Rawls
- School of Life Sciences, Arizona State University, Tempe, AZ 85287-4501, USA; (B.K.D.); (C.I.S.); (G.W.S.); (S.A.A.)
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10
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Bulgart HR, Goncalves I, Weisleder N. Leveraging Plasma Membrane Repair Therapeutics for Treating Neurodegenerative Diseases. Cells 2023; 12:1660. [PMID: 37371130 DOI: 10.3390/cells12121660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/12/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
Plasma membrane repair is an essential cellular mechanism that reseals membrane disruptions after a variety of insults, and compromised repair capacity can contribute to the progression of many diseases. Neurodegenerative diseases are marked by membrane damage from many sources, reduced membrane integrity, elevated intracellular calcium concentrations, enhanced reactive oxygen species production, mitochondrial dysfunction, and widespread neuronal death. While the toxic intracellular effects of these changes in cellular physiology have been defined, the specific mechanism of neuronal death in certain neurodegenerative diseases remains unclear. An abundance of recent evidence indicates that neuronal membrane damage and pore formation in the membrane are key contributors to neurodegenerative disease pathogenesis. In this review, we have outlined evidence supporting the hypothesis that membrane damage is a contributor to neurodegenerative diseases and that therapeutically enhancing membrane repair can potentially combat neuronal death.
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Affiliation(s)
- Hannah R Bulgart
- Department of Physiology & Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Isabella Goncalves
- Department of Physiology & Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Noah Weisleder
- Department of Physiology & Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, College of Medicine, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
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11
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Li Z, Gupta MK, Barajas MB, Oyama T, Duvall CL, Riess ML. Newly Developed Di-Block Copolymer-Based Cell Membrane Stabilizers Protect Mouse Coronary Artery Endothelial Cells against Hypoxia/Reoxygenation Injury. Cells 2023; 12:1394. [PMID: 37408228 PMCID: PMC10216390 DOI: 10.3390/cells12101394] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/05/2023] [Accepted: 05/11/2023] [Indexed: 07/07/2023] Open
Abstract
Reperfusion after ischemia causes additional cellular damage, known as reperfusion injury, for which there is still no effective remedy. Poloxamer (P)188, a tri-block copolymer-based cell membrane stabilizer (CCMS), has been shown to provide protection against hypoxia/reoxygenation (HR) injury in various models by reducing membrane leakage and apoptosis and improving mitochondrial function. Interestingly, substituting one of its hydrophilic poly-ethylene oxide (PEO) blocks with a (t)ert-butyl terminus added to the hydrophobic poly-propylene oxide (PPO) block yields a di-block compound (PEO-PPOt) that interacts better with the cell membrane lipid bi-layer and exhibits greater cellular protection than the gold standard tri-block P188 (PEO75-PPO30-PEO75). For this study, we custom-made three different new di-blocks (PEO113-PPO10t, PEO226-PPO18t and PEO113-PPO20t) to systemically examine the effects of the length of each polymer block on cellular protection in comparison to P188. Cellular protection was assessed by cell viability, lactate dehydrogenase release, and uptake of FM1-43 in mouse artery endothelial cells (ECs) following HR injury. We found that di-block CCMS were able to provide the same or better EC protection than P188. Our study provides the first direct evidence that custom-made di-block CCMS can be superior to P188 in improving EC membrane protection, raising their potential in treating cardiac reperfusion injury.
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Affiliation(s)
- Zhu Li
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (Z.L.); (M.B.B.); (T.O.)
| | - Mukesh K. Gupta
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37232, USA; (M.K.G.)
| | - Matthew B. Barajas
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (Z.L.); (M.B.B.); (T.O.)
- Anesthesiology, TVHS VA Medical Center, Nashville, TN 37212, USA
| | - Takuro Oyama
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (Z.L.); (M.B.B.); (T.O.)
| | - Craig L. Duvall
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37232, USA; (M.K.G.)
| | - Matthias L. Riess
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (Z.L.); (M.B.B.); (T.O.)
- Anesthesiology, TVHS VA Medical Center, Nashville, TN 37212, USA
- Department of Pharmacology, Vanderbilt University, Nashville, TN 37232, USA
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12
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Crabtree A, Boehnke N, Bates F, Hackel B. Consequences of poly(ethylene oxide) and poloxamer P188 on transcription in healthy and stressed myoblasts. Proc Natl Acad Sci U S A 2023; 120:e2219885120. [PMID: 37094151 PMCID: PMC10161009 DOI: 10.1073/pnas.2219885120] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 03/26/2023] [Indexed: 04/26/2023] Open
Abstract
Poly(ethylene oxide) (PEO) and poloxamers, a class of poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) (PEO-PPO-PEO) triblock copolymers, have many personal and medical care applications, including the stabilization of stressed cellular membranes. Despite the widespread use, the cellular transcriptional response to these molecules is relatively unknown. C2C12 myoblasts, a model muscle cell, were subjected to short-term Poloxamer 188 (P188) and PEO181 (8,000 g/mol) treatment in culture. RNA was extracted and sequenced to quantify transcriptomic impact. The addition of moderate concentrations (14 µM) of either polymer to unstressed cells caused substantial differential gene expression, including at least twofold modulation of 357 and 588 genes, respectively. In addition, evaluation of the transcriptome response to osmotic stress without polymer treatment revealed dramatic change in RNA expression. Interestingly, the addition of polymer to stressed cells-at concentrations that provide physiological protection-did not yield a significant difference in expression of any gene relative to stress alone. Genome-scale expression analysis was corroborated by single-gene quantitative real-time PCR. Changes in protein expression were measured via western blot, which revealed partial alignment with the RNA results. Collectively, the significant changes to expression of multiple genes and resultant protein translation demonstrates an unexpectedly broad biochemical response to these polymers in healthy myoblasts in vitro. Meanwhile, the lack of substantial transcriptional response to polymer treatment in stressed cells highlights the physical nature of that protective mechanism.
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Affiliation(s)
- Adelyn A. Crabtree
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN55455
| | - Natalie Boehnke
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN55455
| | - Frank S. Bates
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN55455
| | - Benjamin J. Hackel
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN55455
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13
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Lima MRN, Le KPN, Chakhalian D, Mao Y, Kohn J, Devore DI. Tyrosine-derived polymeric surfactant nanospheres insert cholesterol in cell membranes. J Colloid Interface Sci 2023; 644:264-274. [PMID: 37120875 DOI: 10.1016/j.jcis.2023.04.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 03/22/2023] [Accepted: 04/11/2023] [Indexed: 05/02/2023]
Abstract
HYPOTHESIS The design of biodegradable tyrosine-derived polymeric surfactants (TyPS) through the use of calculated thermodynamic parameters could lead to phospholipid membrane surface modifiers capable of controlling cellular properties such as viability. Delivery of cholesterol by TyPS nanospheres into membrane phospholipid domains could provide further controlled modulation of membrane physical and biological properties. EXPERIMENT Calculated Hansen solubility parameters (∂T) and hydrophile:lipophile balances (HLB) were applied to design and synthesize a small family of diblock and triblock TyPS with different hydrophobic blocks and PEG hydrophilic blocks. Self-assembled TyPS/cholesterol nanospheres were prepared in aqueous media via co-precipitation. Cholesterol loading and Langmuir film balance surface pressures of phospholipid monolayers were obtained. TyPS and TyPS/cholesterol nanosphere effects on human dermal cell viability were evaluated by cell culture using poly(ethylene glycol) (PEG) and Poloxamer 188 as controls. FINDINGS Stable TyPS nanospheres incorporated between 1% and 5% cholesterol. Triblock TyPS formed nanosphere with dimensions significantly smaller than diblock TyPS nanospheres. In accord calculated thermodynamic parameters, cholesterol binding increased with increasing TyPS hydrophobicity. TyPS inserted into phospholipid monolayer films in a manner consistent with their thermodynamic properties and TyPS/cholesterol nanospheres delivered cholesterol into the films. Triblock TyPS/cholesterol nanospheres increased human dermal cell viability, which was indicative of potentially beneficial TyPS effects on cell membrane surface properties.
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Affiliation(s)
- Mariana R N Lima
- Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Rd, Piscataway, NJ 08854, USA.
| | - Kim-Phuong N Le
- Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Rd, Piscataway, NJ 08854, USA.
| | - Daniel Chakhalian
- Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Rd, Piscataway, NJ 08854, USA.
| | - Yong Mao
- Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Rd, Piscataway, NJ 08854, USA.
| | - Joachim Kohn
- Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Rd, Piscataway, NJ 08854, USA.
| | - David I Devore
- Department of Chemistry and Chemical Biology, Rutgers University, 123 Bevier Rd, Piscataway, NJ 08854, USA; Department of Biomedical Engineering, Rutgers University, 599 Taylor Rd, Piscataway, NJ 08854, USA.
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14
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Zargari M, Meyer LJ, Riess ML, Li Z, Barajas MB. P188 Therapy in In Vitro Models of Traumatic Brain Injury. Int J Mol Sci 2023; 24:3334. [PMID: 36834743 PMCID: PMC9961452 DOI: 10.3390/ijms24043334] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/26/2023] [Accepted: 01/30/2023] [Indexed: 02/11/2023] Open
Abstract
Traumatic brain injury (TBI) is a significant cause of morbidity and mortality worldwide. Varied mechanisms of injury contribute to the heterogeneity of this patient population as demonstrated by the multiple published grading scales and diverse required criteria leading to diagnoses from mild to severe. TBI pathophysiology is classically separated into a primary injury that is characterized by local tissue destruction as a result of the initial blow, followed by a secondary phase of injury constituted by a score of incompletely understood cellular processes including reperfusion injury, disruption to the blood-brain barrier, excitotoxicity, and metabolic dysregulation. There are currently no effective pharmacological treatments in the wide-spread use for TBI, in large part due to challenges associated with the development of clinically representative in vitro and in vivo models. Poloxamer 188 (P188), a Food and Drug Administration-approved amphiphilic triblock copolymer embeds itself into the plasma membrane of damaged cells. P188 has been shown to have neuroprotective properties on various cell types. The objective of this review is to provide a summary of the current literature on in vitro models of TBI treated with P188.
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Affiliation(s)
- Michael Zargari
- Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | | | - Matthias L. Riess
- TVHS VA Medical Center, Anesthesiology, Nashville, TN 37212, USA
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Department of Pharmacology, Vanderbilt University, Nashville, TN 37232, USA
| | - Zhu Li
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Matthew B. Barajas
- TVHS VA Medical Center, Anesthesiology, Nashville, TN 37212, USA
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
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15
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Curtin N, Garre M, Bodin JB, Solem N, Méallet-Renault R, O'Shea DF. Exploiting directed self-assembly and disassembly for off-to-on fluorescence responsive live cell imaging. RSC Adv 2022; 12:35655-35665. [PMID: 36545082 PMCID: PMC9745887 DOI: 10.1039/d2ra06534g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 11/23/2022] [Indexed: 12/15/2022] Open
Abstract
A bio-responsive nanoparticle was formed by the directed self-assembly (DSA) of a hydrophobic NIR-fluorophore with poloxamer P188. Fluorophore emission was switched off when part of the nanoparticle, however upon stimulus induced nanoparticle dis-assembly the emission switched on. The emission quenching was shown to be due to fluorophore hydration and aggregation within the nanoparticle and the turn on response attributable to nanoparticle disassembly with embedding of the fluorophore within lipophilic environments. This was exploited for temporal and spatial live cell imaging with a measurable fluorescence response seen upon intracellular delivery of the fluorophore. The first dynamic response, seen within minutes, was from lipid droplets with other lipophilic regions such as the endoplasmic reticulum, nuclear membranes and secretory vacuoles imageable after hours. The high degree of fluorophore photostability facilitated continuous imaging for extended periods and the off to on switching facilitated the real-time observation of lipid droplet biogenesis as they emerged from the endoplasmic reticulum. With an in-depth understanding of the principles involved, further assembly controlling functional responses could be anticipated.
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Affiliation(s)
- Niamh Curtin
- Department of Chemistry, RCSI123 St Stephen's GreenDublin 2Ireland
| | | | - Jean-Baptiste Bodin
- Université Paris-Saclay, Institut des Sciences Moléculaires d’Orsay (ISMO), CNRS91400 OrsayFrance
| | - Nicolas Solem
- Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d'Orsay91405OrsayFrance
| | - Rachel Méallet-Renault
- Université Paris-Saclay, Institut des Sciences Moléculaires d’Orsay (ISMO), CNRS91400 OrsayFrance
| | - Donal F. O'Shea
- Department of Chemistry, RCSI123 St Stephen's GreenDublin 2Ireland
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16
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Foster EG, Gendelman HE, Bade AN. HIV-1 Integrase Strand Transfer Inhibitors and Neurodevelopment. Pharmaceuticals (Basel) 2022; 15:1533. [PMID: 36558984 PMCID: PMC9783753 DOI: 10.3390/ph15121533] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/01/2022] [Accepted: 12/05/2022] [Indexed: 12/14/2022] Open
Abstract
Children born to mothers, with or at risk, of human immunodeficiency virus type-1 (HIV-1) infection are on the rise due to affordable access of antiretroviral therapy (ART) to pregnant women or those of childbearing age. Each year, up to 1.3 million HIV-1-infected women on ART have given birth with recorded mother-to-child HIV-1 transmission rates of less than 1%. Despite this benefit, the outcomes of children exposed to antiretroviral drugs during pregnancy, especially pre- and post- natal neurodevelopment remain incompletely understood. This is due, in part, to the fact that pregnant women are underrepresented in clinical trials. This is underscored by any potential risks of neural tube defects (NTDs) linked, in measure, to periconceptional usage of dolutegravir (DTG). A potential association between DTG and NTDs was first described in Botswana in 2018. Incidence studies of neurodevelopmental outcomes associated with DTG, and other integrase strand transfer inhibitors (INSTIs) are limited as widespread use of INSTIs has begun only recently in pregnant women. Therefore, any associations between INSTI use during pregnancy, and neurodevelopmental abnormalities remain to be explored. Herein, United States Food and Drug Administration approved ARVs and their use during pregnancy are discussed. We provide updates on INSTI pharmacokinetics and adverse events during pregnancy together with underlying mechanisms which could affect fetal neurodevelopment. Overall, this review seeks to educate both clinical and basic scientists on potential consequences of INSTIs on fetal outcomes as a foundation for future scientific investigations.
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Affiliation(s)
- Emma G. Foster
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Howard E. Gendelman
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Aditya N. Bade
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
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17
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Sriram S, Lucke-Wold B. Advances Research in Traumatic Encephalopathy. Biomedicines 2022; 10:biomedicines10092287. [PMID: 36140388 PMCID: PMC9496579 DOI: 10.3390/biomedicines10092287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022] Open
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18
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Vasconcelos-Cardoso M, Batista-Almeida D, Rios-Barros LV, Castro-Gomes T, Girao H. Cellular and molecular mechanisms underlying plasma membrane functionality and integrity. J Cell Sci 2022; 135:275922. [PMID: 35801807 DOI: 10.1242/jcs.259806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The plasma membrane not only protects the cell from the extracellular environment, acting as a selective barrier, but also regulates cellular events that originate at the cell surface, playing a key role in various biological processes that are essential for the preservation of cell homeostasis. Therefore, elucidation of the mechanisms involved in the maintenance of plasma membrane integrity and functionality is of utmost importance. Cells have developed mechanisms to ensure the quality of proteins that inhabit the cell surface, as well as strategies to cope with injuries inflicted to the plasma membrane. Defects in these mechanisms can lead to the development or onset of several diseases. Despite the importance of these processes, a comprehensive and holistic perspective of plasma membrane quality control is still lacking. To tackle this gap, in this Review, we provide a thorough overview of the mechanisms underlying the identification and targeting of membrane proteins that are to be removed from the cell surface, as well as the membrane repair mechanisms triggered in both physiological and pathological conditions. A better understanding of the mechanisms underlying protein quality control at the plasma membrane can reveal promising and unanticipated targets for the development of innovative therapeutic approaches.
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Affiliation(s)
- Maria Vasconcelos-Cardoso
- University of Coimbra, Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, 3000-548 Coimbra, Portugal.,University of Coimbra, Center for Innovative Biomedicine and Biotechnology (CIBB), 3000-548 Coimbra, Portugal.,Clinical Academic Centre of Coimbra (CACC), 3000-548 Coimbra, Portugal
| | - Daniela Batista-Almeida
- University of Coimbra, Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, 3000-548 Coimbra, Portugal.,University of Coimbra, Center for Innovative Biomedicine and Biotechnology (CIBB), 3000-548 Coimbra, Portugal.,Clinical Academic Centre of Coimbra (CACC), 3000-548 Coimbra, Portugal
| | - Laura Valeria Rios-Barros
- Department of Parasitology, Federal University of Minas Gerais, Belo Horizonte, CEP 31270-901, Brazil
| | - Thiago Castro-Gomes
- Department of Parasitology, Federal University of Minas Gerais, Belo Horizonte, CEP 31270-901, Brazil
| | - Henrique Girao
- University of Coimbra, Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, 3000-548 Coimbra, Portugal.,University of Coimbra, Center for Innovative Biomedicine and Biotechnology (CIBB), 3000-548 Coimbra, Portugal.,Clinical Academic Centre of Coimbra (CACC), 3000-548 Coimbra, Portugal
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19
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Amirifar L, Shamloo A, Nasiri R, de Barros NR, Wang ZZ, Unluturk BD, Libanori A, Ievglevskyi O, Diltemiz SE, Sances S, Balasingham I, Seidlits SK, Ashammakhi N. Brain-on-a-chip: Recent advances in design and techniques for microfluidic models of the brain in health and disease. Biomaterials 2022; 285:121531. [DOI: 10.1016/j.biomaterials.2022.121531] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 04/10/2022] [Accepted: 04/15/2022] [Indexed: 12/12/2022]
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20
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Chen WN, Shaikh MF, Bhuvanendran S, Date A, Ansari MT, Radhakrishnan AK, Othman I. Poloxamer 188 (P188), A Potential Polymeric Protective Agent for Central Nervous System Disorders: A Systematic Review. Curr Neuropharmacol 2022; 20:799-808. [PMID: 34077349 PMCID: PMC9878954 DOI: 10.2174/1570159x19666210528155801] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/16/2021] [Accepted: 04/27/2021] [Indexed: 11/22/2022] Open
Abstract
Poloxamer 188 (P188) is an FDA-approved biocompatible block copolymer composed of repeating units of Poly(Ethylene Oxide) (PEO) and poly(propylene oxide) (PPO). Due to its amphiphilic nature and high Hydrophile-Lipophile Balance (HLB) value of 29, P188 is used as a stabilizer/emulsifier in many cosmetics and pharmaceutical preparations. While the applications of P188 as an excipient are widely explored, the data on the pharmacological activity of P188 are scarce. Notably, the neuroprotective potential of P188 has gained a lot of interest. Therefore, this systematic review is aimed at summarizing evidence of neuroprotective potential of P188 in CNS disorders. The PRISMA model was used, and five databases (Google Scholar, Scopus, Wiley Online Library, ScienceDirect, and PubMed) were searched with relevant keywords. The search resulted in 11 articles, which met the inclusion criteria. These articles described the protective effects of P188 on traumatic brain injury or mechanical injury in cells, neurotoxicity, Parkinson's disease, Amyotrophic lateral sclerosis (ALS), and ischemia/ reperfusion injury from stroke. All the articles were original research in experimental or pre-clinical stages using animal models or in vitro systems. The reported activities demonstrated the potential of P188 as a neuroprotective agent in improving CNS conditions such as neurodegeneration.
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Affiliation(s)
- Win Ning Chen
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Selangor, Malaysia
| | - Mohd Farooq Shaikh
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Selangor, Malaysia;,Address correspondence to this author at the Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Selangor, Malaysia; Tel: +603 5514 4483; E-mail:
| | - Saatheeyavaane Bhuvanendran
- Brain Research Institute of Monash Sunway (BRIMS), Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Selangor, Malaysia
| | - Abhijit Date
- Department of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawaii Hilo, Hilo, HI96720, USA
| | - Mohammad Tahir Ansari
- School of Pharmacy, University of Nottingham Malaysia, Semenyih43500, Selangor, Malaysia
| | - Ammu Kutty Radhakrishnan
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Selangor, Malaysia
| | - Iekhsan Othman
- Neuropharmacology Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Selangor, Malaysia
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21
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Alferiev IS, Guerrero DT, Guan P, Nguyen F, Kolla V, Soberman D, Pressly BB, Fishbein I, Brodeur GM, Chorny M. Poloxamer-linked prodrug of a topoisomerase I inhibitor SN22 shows efficacy in models of high-risk neuroblastoma with primary and acquired chemoresistance. FASEB J 2022; 36:e22213. [PMID: 35192728 PMCID: PMC8910785 DOI: 10.1096/fj.202101830rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/02/2022] [Accepted: 02/03/2022] [Indexed: 11/26/2022]
Abstract
High‐risk solid tumors continue to pose a tremendous therapeutic challenge due to multidrug resistance. Biological mechanisms driving chemoresistance in high‐risk primary and recurrent disease are distinct: in newly diagnosed patients, non‐response to therapy is often associated with a higher level of tumor “stemness” paralleled by overexpression of the ABCG2 drug efflux pump, whereas in tumors relapsing after non‐curative therapy, poor drug sensitivity is most commonly linked to the dysfunction of the tumor suppressor protein, p53. In this study, we used preclinical models of aggressive neuroblastoma featuring these characteristic mechanisms of primary and acquired drug resistance to experimentally evaluate a macromolecular prodrug of a structurally enhanced camptothecin analog, SN22, resisting ABCG2‐mediated export, and glucuronidation. Together with extended tumor exposure to therapeutically effective drug levels via reversible conjugation to Pluronic F‐108 (PF108), these features translated into rapid tumor regression and long‐term survival in models of both ABCG2‐overexpressing and p53‐mutant high‐risk neuroblastomas, in contrast to a marginal effect of the clinically used camptothecin derivative, irinotecan. Our results demonstrate that pharmacophore enhancement, increased tumor uptake, and optimally stable carrier‐drug association integrated into the design of the hydrolytically activatable PF108‐[SN22]2 have the potential to effectively combat multiple mechanisms governing chemoresistance in newly diagnosed (chemo‐naïve) and recurrent forms of aggressive malignancies. As a macromolecular carrier‐based delivery system exhibiting remarkable efficacy against two particularly challenging forms of high‐risk neuroblastoma, PF108‐[SN22]2 can pave the way to a robust and clinically viable therapeutic strategy urgently needed for patients with multidrug‐resistant disease presently lacking effective treatment options.
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Affiliation(s)
- Ivan S Alferiev
- Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania/Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - David T Guerrero
- Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania/Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Peng Guan
- Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania/Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Ferro Nguyen
- Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania/Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Venkatadri Kolla
- Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania/Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Danielle Soberman
- Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania/Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Benjamin B Pressly
- Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania/Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Ilia Fishbein
- Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania/Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Garrett M Brodeur
- Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania/Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Michael Chorny
- Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania/Perelman School of Medicine, Philadelphia, Pennsylvania, USA
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22
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Sustained Delivery of Lactoferrin Using Poloxamer Gels for Local Bone Regeneration in a Rat Calvarial Defect Model. MATERIALS 2021; 15:ma15010212. [PMID: 35009359 PMCID: PMC8745849 DOI: 10.3390/ma15010212] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 12/23/2021] [Accepted: 12/25/2021] [Indexed: 01/02/2023]
Abstract
Lactoferrin (LF) is a multifunctional milk glycoprotein that promotes bone regeneration. Local delivery of LF at the bone defect site is a promising approach for enhancement of bone regeneration, but efficient systems for sustained local delivery are still largely missing. The aim of this study was to investigate the potential of the poloxamers for sustained delivery of LF to enhance local bone regeneration. The developed LF/poloxamer formulations were liquid at room temperature (20 °C) transforming to a sustained releasing gel depot at body temperature (37 °C). In vitro release studies demonstrated an initial burst release (~50%), followed by slower release of LF for up to 72 h. Poloxamer, with and without LF, increased osteoblast viability at 72 h (p < 0.05) compared to control, and the immune response from THP-1 cells was mild when compared to the suture material. In rat calvarial defects, the LF/poloxamer group had lower bone volume than the controls (p = 0.0435). No difference was observed in tissue mineral density and lower bone defect coverage scores (p = 0.0267) at 12 weeks after surgery. In conclusion, LF/poloxamer formulations support cell viability and do not induce an unfavourable immune response; however, LF delivery via the current formulation of LF200/poloxamer gel did not demonstrate enhanced bone regeneration and was not compatible with the rat calvarial defect model.
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23
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Morsink NC, Klaassen NJM, Meij BP, Kirpensteijn J, Grinwis GCM, Schaafsma IA, Hesselink JW, Nijsen JFW, van Nimwegen SA. Case Report: Radioactive Holmium-166 Microspheres for the Intratumoral Treatment of a Canine Pituitary Tumor. Front Vet Sci 2021; 8:748247. [PMID: 34805338 PMCID: PMC8600255 DOI: 10.3389/fvets.2021.748247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 09/27/2021] [Indexed: 11/13/2022] Open
Abstract
Introduction: In this case study, a client-owned dog with a large pituitary tumor was experimentally treated by intratumoral injection of radioactive holmium-166 microspheres (166HoMS), named 166Ho microbrachytherapy. To our knowledge, this is the first intracranial intratumoral treatment through needle injection of radioactive microspheres. Materials and Methods: A 10-year-old Jack Russell Terrier was referred to the Clinic for Companion Animal Health (Faculty of Veterinary Medicine, Utrecht University, The Netherlands) with behavioral changes, restlessness, stiff gait, and compulsive circling. MRI and CT showed a pituitary tumor with basisphenoid bone invasion and marked mass effect. The tumor measured 8.8 cm3 with a pituitary height-to-brain area (P/B) ratio of 1.86 cm-1 [pituitary height (cm) ×10/brain area (cm2)]. To reduce tumor volume and neurological signs, 166HoMS were administered in the tumor center by transsphenoidal CT-guided needle injections. Results: Two manual CT-guided injections were performed containing 0.6 ml of 166HoMS suspension in total. A total of 1097 MBq was delivered, resulting in a calculated average tumor dose of 1866 Gy. At 138 days after treatment, the tumor volume measured 5.3 cm3 with a P/B ratio of 1.41 cm-1, revealing a total tumor volume reduction of 40%. Debulking surgery was performed five months after 166HoMS treatment due to recurrent neurological signs. The patient was euthanized two weeks later at request of the owners. Histopathological analysis indicated a pituitary adenoma at time of treatment, with more malignant characteristics during debulking surgery. Conclusion: The 40% tumor volume reduction without evident severe periprocedural side effects demonstrated the feasibility of intracranial intratumoral 166HoMS treatment in this single dog.
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Affiliation(s)
- Nino Chiron Morsink
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Nienke Johanna Maria Klaassen
- Department of Medical Imaging, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Björn Petrus Meij
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Jolle Kirpensteijn
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | | | - Irene Afra Schaafsma
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Jan Willem Hesselink
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Johannes Frank Wilhelmus Nijsen
- Department of Medical Imaging, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, Netherlands
- Quirem Medical, Deventer, Netherlands
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Lauser KT, Rueter AL, Calabrese MA. Small-volume extensional rheology of concentrated protein and protein-excipient solutions. SOFT MATTER 2021; 17:9624-9635. [PMID: 34622265 DOI: 10.1039/d1sm01253c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Limited studies measure extensional rheology in protein solutions due to volume constraints and measurement challenges. We developed a small-volume, dripping-onto-substrate (DoS) extensional rheology device to measure the capillary thinning of protein and protein-excipient solutions via DoS for the first time. Ovalbumin (OVA) was used as a model system, examined via DoS both with and without excipient poloxamer 188 (P188). Water and dilute OVA break apart rapidly and demonstrate inertiocapillary (IC) thinning behavior, where longer breakup times in OVA can be attributed to lower surface tension. Further increasing OVA content leads to longer breakup times and deviations from IC thinning at the start of thinning, however, no evidence of elastic behavior is observed. P188 more effectively lowers the droplet surface tension than OVA, transitioning from IC behavior in dilute solution to weakly elastic behavior at higher concentrations. Combined protein/excipient formulations act synergistically at low concentrations, where breakup times are identical to those of the individual components despite the higher total concentration. However concentrated protein/excipient formulations exhibit elasticity, where extensional rheology parameters depend on P188 content and total concentration. These findings imply that excipients intended to stabilize proteins in shear flow can cause undesirable behavior in extensional flows like injection.
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Affiliation(s)
| | - Amy L Rueter
- 421 Washington Ave SE, Minneapolis, MN 55455, USA.
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25
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Sainz-Ramos M, Villate-Beitia I, Gallego I, AL Qtaish N, Menéndez M, Lagartera L, Grijalvo S, Eritja R, Puras G, Pedraz JL. Correlation between Biophysical Properties of Niosomes Elaborated with Chloroquine and Different Tensioactives and Their Transfection Efficiency. Pharmaceutics 2021; 13:pharmaceutics13111787. [PMID: 34834203 PMCID: PMC8623750 DOI: 10.3390/pharmaceutics13111787] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 01/22/2023] Open
Abstract
Lipid nanocarriers, such as niosomes, are considered attractive candidates for non-viral gene delivery due to their suitable biocompatibility and high versatility. In this work, we studied the influence of incorporating chloroquine in niosomes biophysical performance, as well as the effect of non-ionic surfactant composition and protocol of incorporation in their biophysical performance. An exhaustive comparative evaluation of three niosome formulations differing in these parameters was performed, which included the analysis of their thermal stability, rheological behavior, mean particle size, dispersity, zeta potential, morphology, membrane packing capacity, affinity to bind DNA, ability to release and protect the genetic material, buffering capacity and ability to escape from artificially synthesized lysosomes. Finally, in vitro biological studies were, also, performed in order to determine the compatibility of the formulations with biological systems, their transfection efficiency and transgene expression. Results revealed that the incorporation of chloroquine in niosome formulations improved their biophysical properties and the transfection efficiency, while the substitution of one of the non-ionic surfactants and the phase of addition resulted in less biophysical variations. Of note, the present work provides several biophysical parameters and characterization strategies that could be used as gold standard for gene therapy nanosystems evaluation.
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Affiliation(s)
- Myriam Sainz-Ramos
- Laboratory of Pharmacy and Pharmaceutical Technology, NanoBioCel Research Group, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (M.S.-R.); (I.V.-B.); (I.G.); (N.A.Q.)
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Institute of Health Carlos III, Av. Monforte de Lemos 3–5, 28029 Madrid, Spain; (S.G.); (R.E.)
- Bioaraba, NanoBioCel Research Group, Calle Jose Atxotegi, s/n, 01009 Vitoria-Gasteiz, Spain
| | - Ilia Villate-Beitia
- Laboratory of Pharmacy and Pharmaceutical Technology, NanoBioCel Research Group, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (M.S.-R.); (I.V.-B.); (I.G.); (N.A.Q.)
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Institute of Health Carlos III, Av. Monforte de Lemos 3–5, 28029 Madrid, Spain; (S.G.); (R.E.)
- Bioaraba, NanoBioCel Research Group, Calle Jose Atxotegi, s/n, 01009 Vitoria-Gasteiz, Spain
| | - Idoia Gallego
- Laboratory of Pharmacy and Pharmaceutical Technology, NanoBioCel Research Group, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (M.S.-R.); (I.V.-B.); (I.G.); (N.A.Q.)
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Institute of Health Carlos III, Av. Monforte de Lemos 3–5, 28029 Madrid, Spain; (S.G.); (R.E.)
- Bioaraba, NanoBioCel Research Group, Calle Jose Atxotegi, s/n, 01009 Vitoria-Gasteiz, Spain
| | - Nuseibah AL Qtaish
- Laboratory of Pharmacy and Pharmaceutical Technology, NanoBioCel Research Group, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (M.S.-R.); (I.V.-B.); (I.G.); (N.A.Q.)
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Institute of Health Carlos III, Av. Monforte de Lemos 3–5, 28029 Madrid, Spain; (S.G.); (R.E.)
| | - Margarita Menéndez
- Rocasolano Physical Chemistry Institute, Superior Council of Scientific Investigations (IQFR-CSIC), Calle Serrano 119, 28006 Madrid, Spain;
- Biomedical Research Networking Centre in Respiratory Diseases (CIBERES), Av. Monforte de Lemos 3–5, 28029 Madrid, Spain
| | - Laura Lagartera
- Institute of Medicinal Chemistry (IQM-CSIC), Calle Juan de la Cierva 3, 28006 Madrid, Spain;
| | - Santiago Grijalvo
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Institute of Health Carlos III, Av. Monforte de Lemos 3–5, 28029 Madrid, Spain; (S.G.); (R.E.)
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), Calle Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Ramón Eritja
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Institute of Health Carlos III, Av. Monforte de Lemos 3–5, 28029 Madrid, Spain; (S.G.); (R.E.)
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), Calle Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Gustavo Puras
- Laboratory of Pharmacy and Pharmaceutical Technology, NanoBioCel Research Group, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (M.S.-R.); (I.V.-B.); (I.G.); (N.A.Q.)
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Institute of Health Carlos III, Av. Monforte de Lemos 3–5, 28029 Madrid, Spain; (S.G.); (R.E.)
- Bioaraba, NanoBioCel Research Group, Calle Jose Atxotegi, s/n, 01009 Vitoria-Gasteiz, Spain
- Correspondence: (G.P.); (J.L.P.); Tel.: +34-945014539 (G.P.); +34-945013091 (J.L.P.)
| | - José Luis Pedraz
- Laboratory of Pharmacy and Pharmaceutical Technology, NanoBioCel Research Group, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain; (M.S.-R.); (I.V.-B.); (I.G.); (N.A.Q.)
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Institute of Health Carlos III, Av. Monforte de Lemos 3–5, 28029 Madrid, Spain; (S.G.); (R.E.)
- Bioaraba, NanoBioCel Research Group, Calle Jose Atxotegi, s/n, 01009 Vitoria-Gasteiz, Spain
- Correspondence: (G.P.); (J.L.P.); Tel.: +34-945014539 (G.P.); +34-945013091 (J.L.P.)
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26
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Feng Y, Li L, Li Y, Zhou X, Lin X, Cui Y, Zhu H, Feng B. A MS ALL quantitative method for the determination of Poloxamer 188 in rat plasma by UHPLC-Q-TOF/MS and its application to pharmacokinetic study. Biomed Chromatogr 2021; 36:e5265. [PMID: 34648212 DOI: 10.1002/bmc.5265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/02/2021] [Accepted: 10/05/2021] [Indexed: 11/10/2022]
Abstract
Poloxamer (PL)188 is a commonly used pharmaceutical excipient with unique physicochemical properties. In this study, an MSALL quantitative method for the determination of PL188 in rat plasma by UHPLC-Q-TOF/MS was developed and validated. PL188 was analyzed on PLRP-S reversed-phase column (50 × 4.6 mm, 8 μm, 1,000 Å) with mobile phase 0.1% formic acid-water and 0.1% formic acid in acetonitrile-isopropanol (2:3, v/v). The liner range was 0.1-10.0 μg/ml. A pharmacokinetic study was performed on rats at a dose of 5 mg/kg by intravenous injection. The pharmacokinetic parameters of intravenous injection were as follows: half-life was 2.0 ± 1.1 h, volume of distribution was 5.1 ± 3.2 L/kg, area under the concentration-time curve was 3.0 ± 0.6 μg/L h and clearance was 1.7 ± 0.3 L/h/kg. The results indicated that PL188 could be rapidly distributed to tissues with a high clearance rate. This study can provide a good reference for the further study of PL188.
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Affiliation(s)
- Yixuan Feng
- School of Pharmacy, Jilin Medical University, Jilin, Jilin, China.,School of Life Sciences, Jilin University, Changchun, China
| | - Lele Li
- School of Pharmacy, Jilin Medical University, Jilin, Jilin, China
| | - Yuxuan Li
- School of Pharmacy, Jilin Medical University, Jilin, Jilin, China
| | - Xinxin Zhou
- School of Pharmacy, Jilin Medical University, Jilin, Jilin, China
| | - Xiaoying Lin
- School of Pharmacy, Jilin Medical University, Jilin, Jilin, China
| | - Yue Cui
- School of Pharmacy, Jilin Medical University, Jilin, Jilin, China
| | - Heyun Zhu
- School of Pharmacy, Jilin Medical University, Jilin, Jilin, China
| | - Bo Feng
- School of Pharmacy, Jilin Medical University, Jilin, Jilin, China
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27
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Nguyen CT, Ebrahimi M, Gilbert PM, Stewart BA. Electrophysiological analysis of healthy and dystrophic 3-D bioengineered skeletal muscle tissues. Am J Physiol Cell Physiol 2021; 321:C749-C759. [PMID: 34406904 DOI: 10.1152/ajpcell.00049.2021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Recently, methods for creating three-dimensional (3-D) human skeletal muscle tissues from myogenic cell lines have been reported. Bioengineered muscle tissues are contractile and respond to electrical and chemical stimulation. In this study, we provide an electrophysiological analysis of healthy and dystrophic 3-D bioengineered skeletal muscle tissues, focusing on Duchenne muscular dystrophy (DMD). We enlist the 3-D in vitro model of DMD muscle tissue to evaluate muscle cell electrical properties uncoupled from presynaptic neural inputs, an understudied aspect of DMD. Our data show that previously reported electrophysiological aspects of DMD, including effects on membrane potential and membrane resistance, are replicated in the 3-D muscle tissue model. Furthermore, we test a potential therapeutic compound, poloxamer 188, and demonstrate capacity for improving the membrane potential in DMD muscle. Therefore, this study serves as a baseline for a new in vitro method to examine potential therapies for muscular disorders.
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Affiliation(s)
- Christine T Nguyen
- Department of Biology, University of Toronto Mississauga, Toronto, Canada.,Department of Cell and Systems Biology, University of Toronto, Toronto, Canada
| | - Majid Ebrahimi
- Institute of Biomedical Engineering, University of Toronto, Toronto, Canada.,Donnelly Centre for Cellular and Biomolecular Research, Toronto, Canada
| | - Penney M Gilbert
- Department of Cell and Systems Biology, University of Toronto, Toronto, Canada.,Institute of Biomedical Engineering, University of Toronto, Toronto, Canada.,Donnelly Centre for Cellular and Biomolecular Research, Toronto, Canada
| | - Bryan A Stewart
- Department of Biology, University of Toronto Mississauga, Toronto, Canada.,Department of Cell and Systems Biology, University of Toronto, Toronto, Canada
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28
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Arafat M, Sarfraz M, Bostanudin MF, Esmaeil A, Salam A, AbuRuz S. In Vitro and In Vivo Evaluation of Oral Controlled Release Formulation of BCS Class I Drug Using Polymer Matrix System. Pharmaceuticals (Basel) 2021; 14:929. [PMID: 34577629 PMCID: PMC8470007 DOI: 10.3390/ph14090929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/10/2021] [Accepted: 09/10/2021] [Indexed: 12/15/2022] Open
Abstract
Diltiazem hydrochloride is a calcium channel blocker, which belongs to the family of benzothiazepines. It is commonly used to treat hypertension and atrial fibrillation. Even though the drug has high solubility, its high permeability and rapid metabolism in the liver can limit the bioavailability and increase the dose frequencies for up to four times per day. This study focused on a polymer matrix system not only to control the drug release but also to prolong the duration of bioavailability. The polymer matrices were prepared using different ratios of poloxamer-188, hydroxypropyl methylcellulose, and stearyl alcohol. In vitro and in vivo assessments took place using 24 rabbits and the results were compared to commercially available product Tildiem® (60 mg tablet) as reference. Overall, the rate of drug release was sustained with the gradual increase of poloxamer-188 incorporated with hydroxypropyl methylcellulose and stearyl alcohol in the matrix system, achieving a maximum release period of 10 h. The oral bioavailability and pharmacokinetic parameters of diltiazem hydrochloride incorporated in polymer matrix system were similar to commercial reference Tildiem®. In conclusion, the combination of polymers can have a substantial effect on controlling and prolonging the drug release pattern. The outcomes showed that poloxamer-188 combined with hydroxypropyl methylcellulose and stearyl alcohol is a powerful matrix system for controlling release of diltiazem hydrochloride.
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Affiliation(s)
- Mosab Arafat
- College of Pharmacy, Al Ain University, Al Ain P.O. Box 64141, United Arab Emirates; (M.A.); (M.S.); (M.F.B.); (A.E.); (A.S.)
| | - Muhammad Sarfraz
- College of Pharmacy, Al Ain University, Al Ain P.O. Box 64141, United Arab Emirates; (M.A.); (M.S.); (M.F.B.); (A.E.); (A.S.)
| | - Mohammad F. Bostanudin
- College of Pharmacy, Al Ain University, Al Ain P.O. Box 64141, United Arab Emirates; (M.A.); (M.S.); (M.F.B.); (A.E.); (A.S.)
| | - Anna Esmaeil
- College of Pharmacy, Al Ain University, Al Ain P.O. Box 64141, United Arab Emirates; (M.A.); (M.S.); (M.F.B.); (A.E.); (A.S.)
| | - Aisha Salam
- College of Pharmacy, Al Ain University, Al Ain P.O. Box 64141, United Arab Emirates; (M.A.); (M.S.); (M.F.B.); (A.E.); (A.S.)
| | - Salahdein AbuRuz
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates
- Department of Biopharmaceutics and Clinical Pharmacy, School of Pharmacy, The University of Jordan, Amman 11942, Jordan
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29
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Li Y, Cui Y, Li L, Lin X, Zhou X, Zhu H, Feng B. Ultra-high-performance liquid chromatography coupled with quadrupole time of flight mass spectrometry method for quantifying polymer poloxamer 124 and its application to pharmacokinetic study. J Sep Sci 2021; 44:3822-3829. [PMID: 34435744 DOI: 10.1002/jssc.202100552] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/18/2021] [Accepted: 08/18/2021] [Indexed: 11/06/2022]
Abstract
Poloxamer is a commonly used pharmaceutical excipient. It is a high molecular polymer formed using polypropylene oxide and polyethylene oxide units. Specifically, poloxamer 124 is one of the smaller molecular weight in the poloxamer series; however, its pharmacokinetic behaviors in vivo are still unclear. In this study, a method for quantifying poloxamer 124 in rat plasma through ultra-high-performance liquid chromatography coupled with quadrupole time of flight mass spectrometry was developed. The intravenous dosage of PL124 was 10 mg/kg. Plasma was collected at different times. The calibration curve was linear in the range of 0.1-5 μg/mL for the poloxamer 124 (r ≥ 0.9956) with the lower limit of quantitation of 0.1 μg/ml. The relative standard deviation of the intraday and interday precisions was below 8.0%, and the relative error of the accuracy was within ±12.0%. The extraction recovery, matrix effect, and stability were satisfactory in rat plasma. The validated method was successfully applied to a pharmacokinetic study of poloxamer 124 in rats. Results indicated that poloxamer 124 could be rapidly absorbed and eliminated through caudal vein injection. This study is helpful for the further study of poloxamer 124.
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Affiliation(s)
- Yuxuan Li
- School of Pharmacy, Jilin Medical University, Jilin, P. R. China.,School of Pharmacy, Yanbian University, Yanji, P. R. China
| | - Yue Cui
- School of Pharmacy, Jilin Medical University, Jilin, P. R. China
| | - Lele Li
- School of Pharmacy, Jilin Medical University, Jilin, P. R. China
| | - Xiaoyin Lin
- School of Pharmacy, Jilin Medical University, Jilin, P. R. China
| | - Xinxin Zhou
- School of Pharmacy, Jilin Medical University, Jilin, P. R. China.,School of Pharmacy, Yanbian University, Yanji, P. R. China
| | - Heyun Zhu
- School of Pharmacy, Jilin Medical University, Jilin, P. R. China
| | - Bo Feng
- School of Pharmacy, Jilin Medical University, Jilin, P. R. China
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30
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Hagan ML, Balayan V, McGee-Lawrence ME. Plasma membrane disruption (PMD) formation and repair in mechanosensitive tissues. Bone 2021; 149:115970. [PMID: 33892174 PMCID: PMC8217198 DOI: 10.1016/j.bone.2021.115970] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 03/26/2021] [Accepted: 04/17/2021] [Indexed: 01/04/2023]
Abstract
Mammalian cells employ an array of biological mechanisms to detect and respond to mechanical loading in their environment. One such mechanism is the formation of plasma membrane disruptions (PMD), which foster a molecular flux across cell membranes that promotes tissue adaptation. Repair of PMD through an orchestrated activity of molecular machinery is critical for cell survival, and the rate of PMD repair can affect downstream cellular signaling. PMD have been observed to influence the mechanical behavior of skin, alveolar, and gut epithelial cells, aortic endothelial cells, corneal keratocytes and epithelial cells, cardiac and skeletal muscle myocytes, neurons, and most recently, bone cells including osteoblasts, periodontal ligament cells, and osteocytes. PMD are therefore positioned to affect the physiological behavior of a wide range of vertebrate organ systems including skeletal and cardiac muscle, skin, eyes, the gastrointestinal tract, the vasculature, the respiratory system, and the skeleton. The purpose of this review is to describe the processes of PMD formation and repair across these mechanosensitive tissues, with a particular emphasis on comparing and contrasting repair mechanisms and downstream signaling to better understand the role of PMD in skeletal mechanobiology. The implications of PMD-related mechanisms for disease and potential therapeutic applications are also explored.
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Affiliation(s)
- Mackenzie L Hagan
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, 1460 Laney Walker Blvd., CB1101, Augusta, GA, USA
| | - Vanshika Balayan
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, 1460 Laney Walker Blvd., CB1101, Augusta, GA, USA
| | - Meghan E McGee-Lawrence
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, 1460 Laney Walker Blvd., CB1101, Augusta, GA, USA; Department of Orthopaedic Surgery, Augusta University, Augusta, GA, USA.
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31
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Tang SE, Liao WI, Pao HP, Hsu CW, Wu SY, Huang KL, Chu SJ. Poloxamer 188 Attenuates Ischemia-Reperfusion-Induced Lung Injury by Maintaining Cell Membrane Integrity and Inhibiting Multiple Signaling Pathways. Front Pharmacol 2021; 12:650573. [PMID: 34335242 PMCID: PMC8319770 DOI: 10.3389/fphar.2021.650573] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 07/05/2021] [Indexed: 12/02/2022] Open
Abstract
Background: Poloxamer 188 (P188) possesses anti-inflammatory properties and can help to maintain plasma membrane function. P188 has been reported to exert beneficial effects in the treatment of various disorders. However, the effects of P188 in ischemia/reperfusion (IR)-induced acute lung injury have not been examined. Methods: We investigated the ability of P188 to attenuate IR-induced acute lung injury in rats and hypoxia/reoxygenation (HR) injury in murine epithelial cells. Isolated perfused rat lungs were exposed to 40 min ischemia followed by 60 min reperfusion to induce IR injury. Results: IR led to lung edema, increased pulmonary arterial pressure, promoted lung tissue inflammation and oxidative stress, and upregulated the levels of TNF-α, IL-6 and CINC-1, and increased Lactic dehydrogenase (LDH) activity in bronchoalveolar lavage fluid. IR also downregulated the levels of inhibitor of κB (IκB-α), upregulated nuclear factor (NF)-κB (NF-κB), and promoted apoptosis in lung tissues. P188 significantly suppressed all these effects. In vitro, P188 also exerted a similar effect in murine lung epithelial cells exposed to HR. Furthermore, P188 reduced the number of propidium iodide-positive cells, maintained cell membrane integrity, and enhanced cell membrane repair following HR. Conclusion: We conclude that P188 protects against lung IR injury by suppressing multiple signaling pathways and maintaining cell membrane integrity.
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Affiliation(s)
- Shih-En Tang
- Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan.,Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Wen-I Liao
- Department of Emergency Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Hsin-Ping Pao
- The Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Chin-Wang Hsu
- Department of Emergency and Critical Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Shu-Yu Wu
- Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Kun-Lun Huang
- Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan.,Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Shi-Jye Chu
- Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
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Chen YS, Zhao Y, Beinat C, Zlitni A, Hsu EC, Chen DH, Achterberg F, Wang H, Stoyanova T, Dionne J, Gambhir SS. Ultra-high-frequency radio-frequency acoustic molecular imaging with saline nanodroplets in living subjects. NATURE NANOTECHNOLOGY 2021; 16:717-724. [PMID: 33782588 PMCID: PMC8454903 DOI: 10.1038/s41565-021-00869-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 01/28/2021] [Indexed: 05/18/2023]
Abstract
Molecular imaging is a crucial technique in clinical diagnostics but it relies on radioactive tracers or strong magnetic fields that are unsuitable for many patients, particularly infants and pregnant women. Ultra-high-frequency radio-frequency acoustic (UHF-RF-acoustic) imaging using non-ionizing RF pulses allows deep-tissue imaging with sub-millimetre spatial resolution. However, lack of biocompatible and targetable contrast agents has prevented the successful in vivo application of UHF-RF-acoustic imaging. Here we report our development of targetable nanodroplets for UHF-RF-acoustic molecular imaging of cancers. We synthesize all-liquid nanodroplets containing hypertonic saline that are stable for at least 2 weeks and can produce high-intensity UHF-RF-acoustic signals. Compared with concentration-matched iron oxide nanoparticles, our nanodroplets produce at least 1,600 times higher UHF-RF-acoustic signals at the same imaging depth. We demonstrate in vivo imaging using the targeted nanodroplets in a prostate cancer xenograft mouse model expressing gastrin release protein receptor (GRPR), and show that targeting specificity is increased by more than 2-fold compared with untargeted nanodroplets or prostate cancer cells not expressing this receptor.
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Affiliation(s)
- Yun-Sheng Chen
- Department of Radiology, School of Medicine, Canary Center for Cancer Early Detection, Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
- Department of Electrical and Computer Engineering, University of Illinois at Urbana–Champaign, Urbana, IL 61801
| | - Yang Zhao
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305
- Department of Electrical and Computer Engineering, University of Illinois at Urbana–Champaign, Urbana, IL 61801
| | - Corinne Beinat
- Department of Radiology, School of Medicine, Canary Center for Cancer Early Detection, Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
| | - Aimen Zlitni
- Department of Radiology, School of Medicine, Canary Center for Cancer Early Detection, Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
| | - En-Chi Hsu
- Department of Radiology, School of Medicine, Canary Center for Cancer Early Detection, Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
| | - Dong-Hua Chen
- Department of Structural Biology, Stanford University, Stanford, CA 94305
| | - Friso Achterberg
- Department of Radiology, School of Medicine, Canary Center for Cancer Early Detection, Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
| | - Hanwei Wang
- Department of Electrical and Computer Engineering, University of Illinois at Urbana–Champaign, Urbana, IL 61801
| | - Tanya Stoyanova
- Department of Radiology, School of Medicine, Canary Center for Cancer Early Detection, Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
| | - Jennifer Dionne
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305
| | - Sanjiv Sam Gambhir
- Department of Radiology, School of Medicine, Canary Center for Cancer Early Detection, Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305
- Department of Bioengineering, Stanford University, Stanford, CA 94305
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Gao L, Zhang L, He F, Chen J, Zhao M, Li S, Wu H, Liu Y, Zhang Y, Ping Q, Hu L, Qiao H. Surfactant Assisted Rapid-Release Liposomal Strategies Enhance the Antitumor Efficiency of Bufalin Derivative and Reduce Cardiotoxicity. Int J Nanomedicine 2021; 16:3581-3598. [PMID: 34079251 PMCID: PMC8165102 DOI: 10.2147/ijn.s313153] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 05/06/2021] [Indexed: 12/18/2022] Open
Abstract
Background BF211, a derivative of bufalin (BF), shows significantly improved solubility and potent antitumor efficiency compared to BF. Unfortunately, the unwanted toxicity such as cardiotoxicity caused by unspecific distribution has hindered its clinical use. Methods PEGylated BF211 liposomes (BF211@Lipo) were designed and optimizely prepared based on the pre-prescription research. In vitro and in vivo cardiotoxicity was evaluated. In vivo pharmacokinetics and biodistribution of BF211@Lipo were investigated. In vivo antitumor activity and toxicity were evaluated in HepG2 cell xenograft models. The rapid-release triggered by Poloxamer 188 (P188) was assessed in vitro and in vivo. Results The optimized BF211@Lipo displayed a spherical morphology with a size of (164.6 ± 10.3) nm and a high encapsulation efficiency of (93.24 ± 2.15) %. The in vivo concentration–time curves of BF211 loaded in liposomes showed a prolonged half-life in plasma and increased tumor accumulation. No obvious abnormality in electrocardiograms was observed in guinea pigs even at 9 mg/kg. Moreover, to improve the efficient release of BF211@Lipo, a surfactant-assisted rapid-release strategy was developed, and the release-promoting mechanism was revealed by the fluorescence resonance energy transfer (FRET) and fluorescence nanoparticle tracking analysis (fl-NTA) technology. Sequential injection of BF211@Lipo and P188 could ignite the “cold” liposomes locally in tumor regions, facilitating the burst release of BF211 and enhancing the therapeutic index. Conclusion Our progressive efforts that begin with preparation technology and dosage regimen enable BF211 to like a drug, providing a promising nano platform to deliver the cardiac glycosides and alleviate the side effects by decreasing unspecific biodistribution.
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Affiliation(s)
- Lina Gao
- Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
| | - Lei Zhang
- Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
| | - Fengjun He
- Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
| | - Jing Chen
- Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
| | - Meng Zhao
- Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
| | - Simin Li
- Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
| | - Hao Wu
- Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
| | - Yumeng Liu
- Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
| | - Yinan Zhang
- Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China.,State Key Laboratory Cultivation Base for TCM Quality and Efficacy, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
| | - Qineng Ping
- Department of Pharmaceutics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Lihong Hu
- Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China.,State Key Laboratory Cultivation Base for TCM Quality and Efficacy, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
| | - Hongzhi Qiao
- Jiangsu Key Laboratory for Functional Substance of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China.,State Key Laboratory Cultivation Base for TCM Quality and Efficacy, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China.,Jiangsu Engineering Research Center for Efficient Delivery System of TCM, Nanjing University of Chinese Medicine, Nanjing, 210023, People's Republic of China
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34
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Scheeren LE, Nogueira-Librelotto DR, Mathes D, Pillat MM, Macedo LB, Mitjans M, Vinardell MP, Rolim CMB. Multifunctional PLGA nanoparticles combining transferrin-targetability and pH-stimuli sensitivity enhanced doxorubicin intracellular delivery and in vitro antineoplastic activity in MDR tumor cells. Toxicol In Vitro 2021; 75:105192. [PMID: 33984456 DOI: 10.1016/j.tiv.2021.105192] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 04/22/2021] [Accepted: 05/09/2021] [Indexed: 11/29/2022]
Abstract
Targeted delivery aims to enhance cellular uptake and improve therapeutic outcome with higher disease specificity. The expression of transferrin receptor (TfR) is upregulated on tumor cells, which make the protein Tf and its receptor vastly relevant when applied to targeting strategies. Here, we proposed Tf-decorated pH-sensitive PLGA nanoparticles containing the chemosensitizer poloxamer as a carrier for doxorubicin delivery to tumor cells (Tf-DOX-PLGA-NPs), aiming at alleviating multidrug resistance (MDR). We performed a range of in vitro studies to assess whether targeted NPs have the ability to improve DOX antitumor potential on resistant NCI/ADR-RES cells. All evaluations of the Tf-decorated NPs were performed comparatively to the nontargeted counterparts, aiming to evidence the real role of NP surface functionalization, along with the benefits of pH-sensitivity and poloxamer, in the improvement of antiproliferative activity and reversal of MDR. Tf-DOX-PLGA-NPs induced higher number of apoptotic events and ROS generation, along with cell cycle arrest. Moreover, they were efficiently internalized by NCI/ADR-RES cells, increasing DOX intracellular accumulation, which supports the greater cell killing ability of these targeted NPs with respect to MDR cells. Altogether, these findings supported the effectiveness of the Tf-surface modification of DOX-PLGA-NPs for an improved antiproliferative activity. Therefore, our pH-responsive Tf-inspired NPs are a promising smart drug delivery system to overcome MDR effect at some extent, enhancing the efficacy of DOX antitumor therapy.
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Affiliation(s)
- Laís E Scheeren
- Departamento de Farmácia Industrial, Universidade Federal de Santa Maria, Av. Roraima 1000, 97105-900 Santa Maria, RS, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Santa Maria, Av. Roraima 1000, 97105-900 Santa Maria, RS, Brazil
| | - Daniele R Nogueira-Librelotto
- Departamento de Farmácia Industrial, Universidade Federal de Santa Maria, Av. Roraima 1000, 97105-900 Santa Maria, RS, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Santa Maria, Av. Roraima 1000, 97105-900 Santa Maria, RS, Brazil.
| | - Daniela Mathes
- Departamento de Farmácia Industrial, Universidade Federal de Santa Maria, Av. Roraima 1000, 97105-900 Santa Maria, RS, Brazil
| | - Micheli M Pillat
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Santa Maria, Av. Roraima 1000, 97105-900 Santa Maria, RS, Brazil; Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Maria, Av. Roraima 1000, 97105-900 Santa Maria, RS, Brazil
| | - Letícia B Macedo
- Departamento de Farmácia Industrial, Universidade Federal de Santa Maria, Av. Roraima 1000, 97105-900 Santa Maria, RS, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Santa Maria, Av. Roraima 1000, 97105-900 Santa Maria, RS, Brazil
| | - Montserrat Mitjans
- Departament de Bioquimica i Fisiologia, Facultat de Farmacia i Ciències de l'Alimentació, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028 Barcelona, Spain
| | - M Pilar Vinardell
- Departament de Bioquimica i Fisiologia, Facultat de Farmacia i Ciències de l'Alimentació, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028 Barcelona, Spain
| | - Clarice M B Rolim
- Departamento de Farmácia Industrial, Universidade Federal de Santa Maria, Av. Roraima 1000, 97105-900 Santa Maria, RS, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal de Santa Maria, Av. Roraima 1000, 97105-900 Santa Maria, RS, Brazil.
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35
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Lu M, Kanne CK, Reddington RC, Lezzar DL, Sheehan VA, Shevkoplyas SS. Concurrent Assessment of Deformability and Adhesiveness of Sickle Red Blood Cells by Measuring Perfusion of an Adhesive Artificial Microvascular Network. Front Physiol 2021; 12:633080. [PMID: 33995119 PMCID: PMC8113687 DOI: 10.3389/fphys.2021.633080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 04/06/2021] [Indexed: 12/12/2022] Open
Abstract
Biomarker development is a key clinical research need in sickle cell disease (SCD). Hemorheological parameters are excellent candidates as abnormal red blood cell (RBC) rheology plays a critical role in SCD pathophysiology. Here we describe a microfluidic device capable of evaluating RBC deformability and adhesiveness concurrently, by measuring their effect on perfusion of an artificial microvascular network (AMVN) that combines microchannels small enough to require RBC deformation, and laminin (LN) coating on channel walls to model intravascular adhesion. Each AMVN device consists of three identical capillary networks, which can be coated with LN (adhesive) or left uncoated (non-adhesive) independently. The perfusion rate for sickle RBCs in the LN-coated networks (0.18 ± 0.02 nL/s) was significantly slower than in non-adhesive networks (0.20 ± 0.02 nL/s), and both were significantly slower than the perfusion rate for normal RBCs in the LN-coated networks (0.22 ± 0.01 nL/s). Importantly, there was no overlap between the ranges of perfusion rates obtained for sickle and normal RBC samples in the LN-coated networks. Interestingly, treatment with poloxamer 188 decreased the perfusion rate for sickle RBCs in LN-coated networks in a dose-dependent manner, contrary to previous studies with conventional assays, but in agreement with the latest clinical trial which showed no clinical benefit. Overall, these findings suggest the potential utility of the adhesive AMVN device for evaluating the effect of novel curative and palliative therapies on the hemorheological status of SCD patients during clinical trials and in post-market clinical practice.
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Affiliation(s)
- Madeleine Lu
- Department of Biomedical Engineering, University of Houston, Houston, TX, United States
| | - Celeste K Kanne
- Division of Hematology/Oncology, Department of Pediatrics, Baylor College of Medicine, Houston, TX, United States
| | - Riley C Reddington
- Department of Biomedical Engineering, University of Houston, Houston, TX, United States
| | - Dalia L Lezzar
- Department of Biomedical Engineering, University of Houston, Houston, TX, United States
| | - Vivien A Sheehan
- Division of Hematology/Oncology, Department of Pediatrics, Baylor College of Medicine, Houston, TX, United States
| | - Sergey S Shevkoplyas
- Department of Biomedical Engineering, University of Houston, Houston, TX, United States
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36
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Onyeje C, Lavik E. Highlighting the usage of polymeric nanoparticles for the treatment of traumatic brain injury: A review study. Neurochem Int 2021; 147:105048. [PMID: 33901586 DOI: 10.1016/j.neuint.2021.105048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 04/13/2021] [Accepted: 04/15/2021] [Indexed: 12/30/2022]
Abstract
There are very limited options for treating traumatic brain injury (TBI). Nanoparticles offer the potential of targeting specific cell types, and, potentially, crossing the BBB under the right conditions making them an area of active research for treating TBI. This review focuses on polymeric nanoparticles and the impact of their chemistry, size, and surface groups on their interactions with the vasculature and cells of the brain following injury. The vast majority of the work in the field focuses on acute injury, and when the work is looked at closely, it suggests that nanoparticles rely on interactions with vascular and immune cells to alter the environment of the brain. Nonetheless, there are promising results from a number of approaches that lead to behavioral improvements coupled with neuroprotection that offer promise for therapeutic outcomes. The majority of approaches have been tested immediately following injury. It is not entirely clear what impact these approaches will have in chronic TBI, but being able to modulate inflammation specifically may have a role both during and after the acute phase of injury.
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Affiliation(s)
- Chiad Onyeje
- University of Maryland, Baltimore County, Piscataway Territories, Baltimore, MD 21250, USA
| | - Erin Lavik
- University of Maryland, Baltimore County, Piscataway Territories, Baltimore, MD 21250, USA.
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37
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Meyer LJ, Riess ML. Evaluation of In Vitro Neuronal Protection by Postconditioning with Poloxamer 188 Following Simulated Traumatic Brain Injury. Life (Basel) 2021; 11:316. [PMID: 33917288 PMCID: PMC8067401 DOI: 10.3390/life11040316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/16/2021] [Accepted: 03/29/2021] [Indexed: 12/16/2022] Open
Abstract
Traumatic brain injury (TBI) leads to morbidity and mortality worldwide. Reperfusion after ischemia adds detrimental injury to cells. Ischemia/reperfusion (I/R) injures cells in a variety of ways including cell membrane disruption. Hence, methods to improve endogenous membrane resealing capacity are crucial. Poloxamer (P) 188, an amphiphilic triblock copolymer, was found to be effective against I/R and mechanical injury in various experimental settings. The aim of this study was to establish an in vitro mouse neuronal TBI model and, further, to investigate if postconditioning with P188 directly interacts with neurons after compression and simulated I/R injury, when administered at the start of reoxygenation. Cellular function was assessed by cell number/viability, mitochondrial viability, membrane damage by lactated dehydrogenase (LDH) release and FM1-43 incorporation as well as apoptosis-activation by Caspase 3. Five hours hypoxia ± compression with 2 h reoxygenation proved to be a suitable model for TBI. Compared to normoxic cells not exposed to compression, cell number and mitochondrial viability decreased, whereas membrane injury by LDH release/FM1-43 dye incorporation and Caspase 3 activity increased in cells exposed to hypoxic conditions with compression followed by reoxygenation. P188 did not protect neurons from simulated I/R and/or compression injury. Future research is indicated.
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Affiliation(s)
- Luise J. Meyer
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Anesthesiology, University Medicine Greifswald, 17475 Greifswald, Germany;
| | - Matthias L. Riess
- Anesthesiology, TVHS VA Medical Center, Nashville, TN 37212, USA; Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Pharmacology, Vanderbilt University, Nashville, TN 37232, USA
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38
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Freedman BR, Uzun O, Luna NMM, Rock A, Clifford C, Stoler E, Östlund-Sholars G, Johnson C, Mooney DJ. Degradable and Removable Tough Adhesive Hydrogels. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2008553. [PMID: 33763904 PMCID: PMC8764582 DOI: 10.1002/adma.202008553] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 02/02/2021] [Indexed: 05/20/2023]
Abstract
The development of tough adhesive hydrogels has enabled unprecedented adhesion to wet and moving tissue surfaces throughout the body, but they are typically composed of nondegradable components. Here, a family of degradable tough adhesive hydrogels containing ≈90% water by incorporating covalently networked degradable crosslinkers and hydrolyzable ionically crosslinked main-chain polymers is developed. Mechanical toughness, adhesion, and degradation of these new formulations are tested in both accelerated in vitro conditions and up to 16 weeks in vivo. These degradable tough adhesives are engineered with equivalent mechanical and adhesive properties to nondegradable tough adhesives, capable of achieving stretches >20 times their initial length, fracture energies >6 kJ m-2 , and adhesion energies >1000 J m-2 . All degradable systems show complete degradation within 2 weeks under accelerated aging conditions in vitro and weeks to months in vivo depending on the degradable crosslinker selected. Excellent biocompatibility is observed for all groups after 1, 2, 4, 8, and 16 weeks of implantation, with minimal fibrous encapsulation and no signs of organ toxicity. On-demand removal of the adhesive is achieved with treatment of chemical agents which do not cause damage to underlying skin tissue in mice. The broad versatility of this family of adhesives provides the foundation for numerous in vivo indications.
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Affiliation(s)
- Benjamin R Freedman
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Oktay Uzun
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Nadja M Maldonado Luna
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
- Department of Mechanical Engineering, University of Puerto Rico-Mayaguez, Puerto Rico, 00682, USA
| | - Anna Rock
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Charles Clifford
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
| | - Emily Stoler
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | | | - Christopher Johnson
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - David J Mooney
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
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39
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Valera IC, Wacker AL, Hwang HS, Holmes C, Laitano O, Landstrom AP, Parvatiyar MS. Essential roles of the dystrophin-glycoprotein complex in different cardiac pathologies. Adv Med Sci 2021; 66:52-71. [PMID: 33387942 DOI: 10.1016/j.advms.2020.12.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 12/12/2020] [Accepted: 12/17/2020] [Indexed: 12/20/2022]
Abstract
The dystrophin-glycoprotein complex (DGC), situated at the sarcolemma dynamically remodels during cardiac disease. This review examines DGC remodeling as a common denominator in diseases affecting heart function and health. Dystrophin and the DGC serve as broad cytoskeletal integrators that are critical for maintaining stability of muscle membranes. The presence of pathogenic variants in genes encoding proteins of the DGC can cause absence of the protein and/or alterations in other complex members leading to muscular dystrophies. Targeted studies have allowed the individual functions of affected proteins to be defined. The DGC has demonstrated its dynamic function, remodeling under a number of conditions that stress the heart. Beyond genetic causes, pathogenic processes also impinge on the DGC, causing alterations in the abundance of dystrophin and associated proteins during cardiac insult such as ischemia-reperfusion injury, mechanical unloading, and myocarditis. When considering new therapeutic strategies, it is important to assess DGC remodeling as a common factor in various heart diseases. The DGC connects the internal F-actin-based cytoskeleton to laminin-211 of the extracellular space, playing an important role in the transmission of mechanical force to the extracellular matrix. The essential functions of dystrophin and the DGC have been long recognized. DGC based therapeutic approaches have been primarily focused on muscular dystrophies, however it may be a beneficial target in a number of disorders that affect the heart. This review provides an account of what we now know, and discusses how this knowledge can benefit persistent health conditions in the clinic.
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Affiliation(s)
- Isela C Valera
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA
| | - Amanda L Wacker
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA
| | - Hyun Seok Hwang
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA
| | - Christina Holmes
- Department of Chemical and Biomedical Engineering, Florida A&M University-Florida State University College of Engineering, Tallahassee, FL, USA
| | - Orlando Laitano
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA
| | - Andrew P Landstrom
- Department of Pediatrics, Division of Cardiology, Duke University School of Medicine, Durham, NC, USA; Department of Cell Biology, Duke University School of Medicine, Durham, NC, USA
| | - Michelle S Parvatiyar
- Department of Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, FL, USA.
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40
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A surfactant polymer wound dressing protects human keratinocytes from inducible necroptosis. Sci Rep 2021; 11:4357. [PMID: 33623080 PMCID: PMC7902632 DOI: 10.1038/s41598-021-82260-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 10/27/2020] [Indexed: 02/07/2023] Open
Abstract
Chronic wounds show necroptosis from which keratinocytes must be protected to enable appropriate wound re-epithelialization and closure. Poloxamers, a class of synthetic triblock copolymers, are known to be effective against plasma membrane damage (PMD). The purpose of this study is to evaluate the efficacy of a specific poloxamer, surfactant polymer dressing (SPD), which is currently used clinically as wound care dressing, against PMD in keratinocytes. Triton X-100 (TX100) at sub-lytic concentrations caused PMD as demonstrated by the efflux of calcein and by the influx of propidium iodide and FM1-43. TX100, an inducer of necroptosis, led to mitochondrial fragmentation, depletion of nuclear HMGB1, and activation of signaling complex associated with necroptosis (i.e., activation of RIP3 and phosphorylation of MLKL). All responses following exposure of human keratinocytes to TX100 were attenuated by pre- or co-treatment with SPD (100 mg/ml). The activation and translocation of phospho-MLKL to the plasma membrane, taken together with depletion of nuclear HMGB1, characterized the observed cell death as necroptosis. Thus, our findings show that TX100-induced plasma membrane damage and death by necroptosis were both attenuated by SPD, allowing keratinocyte survival. The significance of such protective effects of SPD on keratinocytes in wound re-epithelialization and closure warrant further studies.
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41
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Casula L, Sinico C, Valenti D, Pini E, Pireddu R, Schlich M, Lai F, Maria Fadda A. Delivery of beclomethasone dipropionate nanosuspensions with an electronic cigarette. Int J Pharm 2021; 596:120293. [PMID: 33497704 DOI: 10.1016/j.ijpharm.2021.120293] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 01/16/2021] [Accepted: 01/17/2021] [Indexed: 01/14/2023]
Abstract
The aim of this work was to ascertain the ability of electronic nicotine delivery systems (ENDS) to deliver drug nanocrystals through the produced aerosol. A nanocrystal nanosuspension of beclomethasone dipropionate, a synthetic chlorinated corticosteroid diester commonly used by inhalation in the treatment of asthma and chronic obstructive pulmonary disease, was prepared with a wet media milling technique using Poloxamer 188 as stabilizer. The obtained nanosuspension was thoroughly characterized by different techniques: transmission electron microscopy, photon correlation spectroscopy, X-ray powder diffractometry and Fourier transform infrared spectroscopy. The nanosuspension was then loaded in the cartomizer of the electronic cigarette and the produced aerosol was collected and analysed, confirming the presence of drug nanocrystals. The results of this study suggested the possible alternative use of ENDS as medical device for the delivery of poorly soluble drugs.
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Affiliation(s)
- Luca Casula
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, CNBS, Università degli Studi di Cagliari, Cagliari 09124, Italy
| | - Chiara Sinico
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, CNBS, Università degli Studi di Cagliari, Cagliari 09124, Italy
| | - Donatella Valenti
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, CNBS, Università degli Studi di Cagliari, Cagliari 09124, Italy
| | - Elena Pini
- DISFARM, Sezione di Chimica Generale e Organica "A. Marchesini", Università degli Studi di Milano, Via Venezian 21, Milano 20133, Italy
| | - Rosa Pireddu
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, CNBS, Università degli Studi di Cagliari, Cagliari 09124, Italy
| | - Michele Schlich
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, CNBS, Università degli Studi di Cagliari, Cagliari 09124, Italy; Laboratory of Nanotechnology for Precision Medicine, Istituto Italiano di Tecnologia, Genova 16163, Italy
| | - Francesco Lai
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, CNBS, Università degli Studi di Cagliari, Cagliari 09124, Italy.
| | - Anna Maria Fadda
- Dipartimento di Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, CNBS, Università degli Studi di Cagliari, Cagliari 09124, Italy
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Plasma membrane integrity in health and disease: significance and therapeutic potential. Cell Discov 2021; 7:4. [PMID: 33462191 PMCID: PMC7813858 DOI: 10.1038/s41421-020-00233-2] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 10/23/2020] [Indexed: 12/13/2022] Open
Abstract
Maintenance of plasma membrane integrity is essential for normal cell viability and function. Thus, robust membrane repair mechanisms have evolved to counteract the eminent threat of a torn plasma membrane. Different repair mechanisms and the bio-physical parameters required for efficient repair are now emerging from different research groups. However, less is known about when these mechanisms come into play. This review focuses on the existence of membrane disruptions and repair mechanisms in both physiological and pathological conditions, and across multiple cell types, albeit to different degrees. Fundamentally, irrespective of the source of membrane disruption, aberrant calcium influx is the common stimulus that activates the membrane repair response. Inadequate repair responses can tip the balance between physiology and pathology, highlighting the significance of plasma membrane integrity. For example, an over-activated repair response can promote cancer invasion, while the inability to efficiently repair membrane can drive neurodegeneration and muscular dystrophies. The interdisciplinary view explored here emphasises the widespread potential of targeting plasma membrane repair mechanisms for therapeutic purposes.
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Pille JA, Riess ML. Potential Effects of Poloxamer 188 on Rat Isolated Brain Mitochondria after Oxidative Stress In Vivo and In Vitro. Brain Sci 2021; 11:brainsci11010122. [PMID: 33477541 PMCID: PMC7831103 DOI: 10.3390/brainsci11010122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/11/2021] [Accepted: 01/13/2021] [Indexed: 12/26/2022] Open
Abstract
Outcome after cerebral ischemia is often dismal. Reperfusion adds significantly to the ischemic injury itself. Therefore, new strategies targeting ischemia/reperfusion (I/R) injury are critically needed. Poloxamer (P)188, an amphiphilic triblock copolymer, is a highly promising pharmacological therapeutic as its capability to insert into injured cell membranes has been reported to protect against I/R injury in various models. Although mitochondrial function particularly profits from P188 treatment after I/R, it remains unclear if this beneficial effect occurs directly or indirectly. Here, rat isolated brain mitochondria underwent oxidative stress in vivo by asphyxial cardiac arrest or in vitro by the addition of hydrogen peroxide (H2O2) after isolation. Mitochondrial function was assessed by adenosine triphosphate synthesis, oxygen consumption, and calcium retention capacity. Both asphyxia and H2O2 exposure significantly impaired mitochondrial function. P188 did not preserve mitochondrial function after either injury mechanism. Further research is indicated.
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Affiliation(s)
- Johannes A Pille
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN 37232, USA;
- Department of Anesthesiology, University Medicine Greifswald, 17475 Greifswald, Germany
| | - Matthias L Riess
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN 37232, USA;
- Department of Pharmacology, Vanderbilt University, Nashville, TN 37232, USA
- Anesthesiology, TVHS VA Medical Center, Nashville, TN 37212, USA
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Islam N, Irfan M, Khan SUD, Syed HK, Iqbal MS, Khan IU, Mahdy A, Raafat M, Hossain MA, Inam S, Munir R, Ishtiaq M. Poloxamer-188 and d-α-Tocopheryl Polyethylene Glycol Succinate (TPGS-1000) Mixed Micelles Integrated Orodispersible Sublingual Films to Improve Oral Bioavailability of Ebastine; In Vitro and In Vivo Characterization. Pharmaceutics 2021; 13:54. [PMID: 33406587 PMCID: PMC7823785 DOI: 10.3390/pharmaceutics13010054] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 12/16/2020] [Accepted: 12/18/2020] [Indexed: 12/14/2022] Open
Abstract
Orodispersible sublingual films (OSFs) composed of hydrophilic polymers were loaded with poloxamer-188 and d-α-tocopheryl polyethylene glycol succinate (TPGS-1000) mixed micelles to improve the oral bioavailability of a poorly soluble drug, ebastine (EBT). Mixed micelles formed by thin-film hydration method were incorporated into orodispersible sublingual film, consisting of HPMC and glycerol, using solvent casting technique. The mixed micelles and films were thoroughly evaluated for physicochemical characterization (size, polydispersity index, zeta potential, entrapment efficiency, thickness, weight, surface pH studies, disintegration time, swelling indices, mechanical properties, FTIR, PXRD, DSC, SEM, AFM, in vitro drug release, in vivo bioavailability, and toxicological studies). The results showed that the average particle size of mixed micelles was 73 nm. The mean zeta potential and PDI of the optimal mixed micelles formulation were -26 mV and 0.16, respectively. Furthermore, the maximum entrapment efficiency 82% was attained. The film's disintegration time was in the range of 28 to 102 s in aqueous media. The integrity of micelles was not affected upon incorporation in films. Importantly, the micelles-loaded films revealed rapid absorption, high permeability, and increased bioavailability of EBT as compared to the pure drug. The existence of ebastine loaded mixed micelles in the films enhanced the bioavailability about 2.18 folds as compared to pure drug. Further, the results evidently established in-vitro and in-vivo performance of bioavailability enhancement, biocompatibility, and good safety profile of micelles-loaded orodispersible EBT films. Finally, it was concluded that film loaded with poloxamer-188/TPGS-1000 mixed micelles could be an effective carrier system for enhancing the bioavailability of ebastine.
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Affiliation(s)
- Nayyer Islam
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad 38000, Pakistan; (N.I.); (H.K.S.); (I.U.K.), (S.I.), (R.M.), (M.I.)
| | - Muhammad Irfan
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad 38000, Pakistan; (N.I.); (H.K.S.); (I.U.K.), (S.I.), (R.M.), (M.I.)
| | - Salah-Ud-Din Khan
- Department of Biochemistry, College of Medicine, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11432, Saudi Arabia;
| | - Haroon Khalid Syed
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad 38000, Pakistan; (N.I.); (H.K.S.); (I.U.K.), (S.I.), (R.M.), (M.I.)
| | - Muhammad Shahid Iqbal
- Department of Clinical Pharmacy, College of Pharmacy, Prince Sattam bin Abdulaziz University, Alkharj 11942, Saudi Arabia;
| | - Ikram Ullah Khan
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad 38000, Pakistan; (N.I.); (H.K.S.); (I.U.K.), (S.I.), (R.M.), (M.I.)
| | - Amina Mahdy
- Pharmacology Department, International School of Medicine, Medipol University, Istanbul 34810, Turkey; or
| | - Mohamed Raafat
- Department of Pharmacology and Toxicology, College of Pharmacy, Umm Al Qura University, Makkah P.O. Box 715, Saudi Arabia;
| | - Mohammad Akbar Hossain
- Department of Pharmacology and Toxicology, Faculty of Medicine, Umm Al Qura University, Makkah P.O. Box 715, Saudi Arabia;
| | - Sana Inam
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad 38000, Pakistan; (N.I.); (H.K.S.); (I.U.K.), (S.I.), (R.M.), (M.I.)
| | - Rabia Munir
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad 38000, Pakistan; (N.I.); (H.K.S.); (I.U.K.), (S.I.), (R.M.), (M.I.)
| | - Memoona Ishtiaq
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad 38000, Pakistan; (N.I.); (H.K.S.); (I.U.K.), (S.I.), (R.M.), (M.I.)
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Salzman MM, Bartos JA, Yannopoulos D, Riess ML. Poloxamer 188 Protects Isolated Adult Mouse Cardiomyocytes from Reoxygenation Injury. Pharmacol Res Perspect 2020; 8:e00639. [PMID: 33073927 PMCID: PMC7570448 DOI: 10.1002/prp2.639] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 05/28/2020] [Accepted: 06/01/2020] [Indexed: 12/13/2022] Open
Abstract
Reperfusion injury is a complex pathological event involving processes that can lead to further disruption of the cell membrane and function following an ischemic event. Return of blood flow allows for the needed reperfusion; however, for a period of time before remaining viable cells stabilize, reperfusion results in additional cellular injury. In cardiomyocytes, loss of membrane integrity allows abnormal influx of extracellular calcium, leading to hyper-contracture and cell death. Methods to improve the membrane integrity of cardiomyocytes overwhelmed by pathological disruptions, such as reperfusion injury, are needed to prevent cell death, because of the myocardium's limited ability to regenerate. Research has shown administration of the copolymer P(oloxamer) 188 before ischemia/reperfusion can protect cardiomyocytes through membrane stabilization. This study sought to determine whether the administration of P188 at the beginning of the clinically more relevant time of reperfusion after ischemia will attenuate any additional damage to cardiomyocytes by stabilizing membrane integrity to allow the cells to maintain function. Using an in-vitro cardiomyocyte model subjected to hypoxia/reoxygenation to simulate ischemia/reperfusion injury, we show that reoxygenation significantly potentiates the injury caused by hypoxia itself. P188, with its unique combination of hydrophobic and hydrophilic chemical properties, and only delivered at the beginning of reoxygenation, dose-dependently protected cardiomyocytes from injury due to reoxygenation by repairing cell membranes, decreasing calcium influx, and maintaining cellular morphology. Our study also shows the hydrophobic portion of P188 is necessary for the stabilization of cell membrane integrity in providing protection to cardiomyocytes against reoxygenation injury.
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Affiliation(s)
- Michele M. Salzman
- Department of AnesthesiologyVanderbilt University Medical CenterNashvilleTNUSA
- Department of PharmacologyVanderbilt UniversityNashvilleTNUSA
- Present address:
Department of Pediatrics ‐ NeonatologyVanderbilt University Medical CenterNashvilleTNUnited States
| | - Jason A. Bartos
- Department of Medicine – Cardiovascular DivisionUniversity of MinnesotaMinneapolisMNUSA
| | - Demetris Yannopoulos
- Department of Medicine – Cardiovascular DivisionUniversity of MinnesotaMinneapolisMNUSA
| | - Matthias L. Riess
- Department of AnesthesiologyVanderbilt University Medical CenterNashvilleTNUSA
- Department of PharmacologyVanderbilt UniversityNashvilleTNUSA
- Department of AnesthesiologyTVHS VA Medical CenterNashvilleTNUSA
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Jarak I, Varela CL, Tavares da Silva E, Roleira FFM, Veiga F, Figueiras A. Pluronic-based nanovehicles: Recent advances in anticancer therapeutic applications. Eur J Med Chem 2020; 206:112526. [PMID: 32971442 DOI: 10.1016/j.ejmech.2020.112526] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 05/27/2020] [Accepted: 06/01/2020] [Indexed: 02/06/2023]
Abstract
Pluronics are a class of amphiphilic tri-block copolymers with wide pharmaceutical applicability. In the past decades, the ability to form biocompatible nanosized micelles was exploited to formulate stable drug nanovehicles with potential use in antitumor therapy. Due to the great potential for tuning physical and structural properties of Pluronic unimers, a panoply of drug or polynucleotide-loaded micelles was prepared and tested for their antitumoral activity. The attractive inherent antitumor properties of Pluronic polymers in combination with cell targeting and stimuli-responsive ligands greatly improved antitumoral therapeutic effects of tested drugs. In spite of that, the extraordinary complexity of biological challenges in the delivery of micellar drug payload makes their therapeutic potential still not exploited to the fullest. In this review paper we attempt to present the latest developments in the field of Pluronic based nanovehicles and their application in anticancer therapy with an overview of the chemistry involved in the preparation of these nanovehicles.
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Affiliation(s)
- Ivana Jarak
- Univ. Coimbra, Department of Pharmaceutical Technology, Faculty of Pharmacy, Azinhaga de Santa Comba, Pólo III - Pólo das Ciências da Saúde, 3000-548, Coimbra, Portugal
| | - Carla L Varela
- Univ. Coimbra, CIEPQPF, FFUC, Laboratory of Pharmaceutical Chemistry, Azinhaga de Santa Comba, Pólo III - Pólo das Ciências da Saúde, 3000-548, Coimbra, Portugal
| | - Elisiário Tavares da Silva
- Univ. Coimbra, CIEPQPF, FFUC, Laboratory of Pharmaceutical Chemistry, Azinhaga de Santa Comba, Pólo III - Pólo das Ciências da Saúde, 3000-548, Coimbra, Portugal
| | - Fernanda F M Roleira
- Univ. Coimbra, CIEPQPF, FFUC, Laboratory of Pharmaceutical Chemistry, Azinhaga de Santa Comba, Pólo III - Pólo das Ciências da Saúde, 3000-548, Coimbra, Portugal
| | - Francisco Veiga
- Univ. Coimbra, Department of Pharmaceutical Technology, Faculty of Pharmacy, Azinhaga de Santa Comba, Pólo III - Pólo das Ciências da Saúde, 3000-548, Coimbra, Portugal; Univ. Coimbra, REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy, Azinhaga de Santa Comba, Pólo III - Pólo das Ciências da Saúde, 3000-548, Coimbra, Portugal
| | - Ana Figueiras
- Univ. Coimbra, Department of Pharmaceutical Technology, Faculty of Pharmacy, Azinhaga de Santa Comba, Pólo III - Pólo das Ciências da Saúde, 3000-548, Coimbra, Portugal; Univ. Coimbra, REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy, Azinhaga de Santa Comba, Pólo III - Pólo das Ciências da Saúde, 3000-548, Coimbra, Portugal.
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Saleh DM, Alexander WT, Numano T, Ahmed OHM, Gunasekaran S, Alexander DB, Abdelgied M, El-Gazzar AM, Takase H, Xu J, Naiki-Ito A, Takahashi S, Hirose A, Ohnishi M, Kanno J, Tsuda H. Comparative carcinogenicity study of a thick, straight-type and a thin, tangled-type multi-walled carbon nanotube administered by intra-tracheal instillation in the rat. Part Fibre Toxicol 2020; 17:48. [PMID: 33054855 PMCID: PMC7559486 DOI: 10.1186/s12989-020-00382-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 09/16/2020] [Indexed: 12/11/2022] Open
Abstract
Background Multi-walled carbon nanotubes can be divided into two general subtypes: tangled and straight. MWCNT-N (60 nm in diameter) and MWCNT-7 (80–90 nm in diameter) are straight-type MWCNTs, and similarly to asbestos, both are carcinogenic to the lung and pleura when administered to rats via the airway. Injection of straight-type MWCNTs into the peritoneal cavity also induces the development of mesothelioma, however, injection of tangled-type MWCNTs into the peritoneal cavity does not induce carcinogenesis. To investigate these effects in the lung we conducted a 2-year comparative study of the potential carcinogenicities of a straight-type MWCNT, MWCNT-A (approximately 150 nm in diameter), and a tangled-type MWCNT, MWCNT-B (7.4 nm in diameter) after administration into the rat lung. Crocidolite asbestos was used as the reference material, and rats administered vehicle were used as the controls. Test materials were administered by intra-Tracheal Intra-Pulmonary Spraying (TIPS) once a week over a 7 week period (8 administrations from day 1 to day 50), followed by a 2-year observation period without further treatment. Rats were administered total doses of 0.5 or 1.0 mg MWCNT-A and MWCNT-B or 1.0 mg asbestos. Results There was no difference in survival between any of the groups. The rats administered MWCNT-A or asbestos did not have a significant increase in bronchiolo-alveolar hyperplasia or tumors in the lung. However, the rats administered MWCNT-B did have significantly elevated incidences of bronchiolo-alveolar hyperplasia and tumors in the lung: the incidence of bronchiolo-alveolar hyperplasia was 0/20, 6/20, and 9/20 in the vehicle, 0.5 mg MWCNT-B, and 1.0 mg MWCNT-B groups, respectively, and the incidence of adenoma and adenocarcinoma combined was 1/19, 5/20, and 7/20 in the vehicle, 0.5 mg MWCNT-B, and 1.0 mg MWCNT-B groups, respectively. Malignant pleural mesothelioma was not induced in any of the groups. Conclusions The results of this initial study indicate that tangled-type MWCNT-B is carcinogenic to the rat lung when administered via the airway, and that straight-type MWCNT-A did not have higher carcinogenic potential in the rat lung than tangled-type MWCNT-B.
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Affiliation(s)
- Dina Mourad Saleh
- Nanotoxicology Project, Nagoya City University, 3-1 Tanabe-Dohri, Mizuho-ku, Nagoya, 466-8603, Japan.,Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.,Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Assuit University, Assuit, Egypt
| | - William T Alexander
- Nanotoxicology Project, Nagoya City University, 3-1 Tanabe-Dohri, Mizuho-ku, Nagoya, 466-8603, Japan
| | - Takamasa Numano
- Nanotoxicology Project, Nagoya City University, 3-1 Tanabe-Dohri, Mizuho-ku, Nagoya, 466-8603, Japan
| | - Omnia Hosny Mohamed Ahmed
- Nanotoxicology Project, Nagoya City University, 3-1 Tanabe-Dohri, Mizuho-ku, Nagoya, 466-8603, Japan.,Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.,Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Aswan University, Aswan, Egypt
| | - Sivagami Gunasekaran
- Nanotoxicology Project, Nagoya City University, 3-1 Tanabe-Dohri, Mizuho-ku, Nagoya, 466-8603, Japan.,Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - David B Alexander
- Nanotoxicology Project, Nagoya City University, 3-1 Tanabe-Dohri, Mizuho-ku, Nagoya, 466-8603, Japan.
| | - Mohamed Abdelgied
- Nanotoxicology Project, Nagoya City University, 3-1 Tanabe-Dohri, Mizuho-ku, Nagoya, 466-8603, Japan.,Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.,Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - Ahmed M El-Gazzar
- Nanotoxicology Project, Nagoya City University, 3-1 Tanabe-Dohri, Mizuho-ku, Nagoya, 466-8603, Japan.,Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.,Department of Veterinary Toxicology, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - Hiroshi Takase
- Core Laboratory, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Jiegou Xu
- Nanotoxicology Project, Nagoya City University, 3-1 Tanabe-Dohri, Mizuho-ku, Nagoya, 466-8603, Japan.,Department of Immunology, Anhui Medical University College of Basic Medical Sciences, Hefei, China
| | - Aya Naiki-Ito
- Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Satoru Takahashi
- Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Akihiko Hirose
- Division of Risk Assessment, National Institute of Health Sciences, Kawasaki, Japan
| | - Makoto Ohnishi
- Japan Industrial Safety and Health Association, Japan Bioassay Research Center, Hadano, Kanagawa, Japan
| | - Jun Kanno
- Japan Industrial Safety and Health Association, Japan Bioassay Research Center, Hadano, Kanagawa, Japan
| | - Hiroyuki Tsuda
- Nanotoxicology Project, Nagoya City University, 3-1 Tanabe-Dohri, Mizuho-ku, Nagoya, 466-8603, Japan.
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Chung EP, Wells AR, Kiamco MM, Leung KP. Dual Asymmetric Centrifugation Efficiently Produces a Poloxamer-Based Nanoemulsion Gel for Topical Delivery of Pirfenidone. AAPS PharmSciTech 2020; 21:265. [PMID: 33006045 PMCID: PMC7529632 DOI: 10.1208/s12249-020-01798-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 08/20/2020] [Indexed: 02/06/2023] Open
Abstract
This study used dual asymmetric centrifugation (DAC) to produce a topical vehicle for Pirfenidone (Pf; 5-methyl-1-phenyl-2[1H]-pyridone)—a Food and Drug Administration-approved antifibrotic drug indicated for idiopathic fibrosis treatment. Pf was loaded (8 wt%) in a poloxamer nanoemulsion gel (PNG) formulation consisting of water (47.8 wt%), triacetin (27.6 wt%), poloxamer 407 (P407, 13.8 wt%), polysorbate 80 (1.8 wt%), and benzyl alcohol (0.9 wt%). To our knowledge, poloxamer gels are typically processed with either high-shear methods or temperature regulation and have not been emulsified using DAC. Using a single-step emulsification process, 2 min mixed at 2500 RPM resulted in the lowest Pf loading variability with a relative standard deviation (RSD) of 0.96% for a 1.5 g batch size. Batch sizes of 15 g and 100 g yield higher RSD of 4.18% and 3.05%, respectively, but still in compliance with USP guidelines. Ex vivo permeation in full thickness porcine skin after 24 h showed total Pf permeation of 404.90 ± 67.07 μg/cm2. Tested in vitro on human dermal fibroblasts stimulated with transforming growth factor-beta 1 (TGF-β1), Pf-PNG resulted in a > 2 fold decrease in α-SMA expression over vehicle control demonstrating that formulated Pf retained its biological activity. One-month stability testing at 25°C/60% relative humidity (RH) and 40°C/75% RH showed that % drug content, release kinetics, and biological activity were largely unchanged for both conditions; however, pH decreased from 6.7 to 5.5 (25°C/60% RH) and 4.5 (40°C/75% RH) after 1 month. Overall, these data demonstrate the utility of DAC to rapidly and reproducibly prepare lab-scale batches of emulsified gels for pharmaceutical formulation development.
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Copolymer Surfactant Poloxamer 188 Accelerates Post-axonotemetic Sciatic Nerve Regeneration. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2020. [DOI: 10.1007/s40883-020-00174-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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50
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Mehdipour M, Daghigh Kia H, Martínez-Pastor F. Poloxamer 188 exerts a cryoprotective effect on rooster sperm and allows decreasing glycerol concentration in the freezing extender. Poult Sci 2020; 99:6212-6220. [PMID: 33142539 PMCID: PMC7647912 DOI: 10.1016/j.psj.2020.08.041] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 07/16/2020] [Accepted: 08/12/2020] [Indexed: 01/27/2023] Open
Abstract
Glycerol is the most widely used cryoprotectant for rooster sperm because it declines the mechanical damage to sperm during the freezing process. Despite its high molecular weight and viscosity, which may be cytotoxic, glycerol can cause damage to cells during the cryopreservation process, resulting in less fertility. Poloxamer 188 (P188) is an embryo cryopreservation supplement effective in many species and also for cell lines and plant cells. We tested the suitability of P188 in the cryopreservation of rooster sperm, considering post-thawing motility, abnormalities, membrane functionality (hypo-osmotic swelling test), mitochondrial activity, viability, apoptosis status, reactive oxygen species production, and ATP content after thawing and the fertility and hatchability after AI. We carried out a factorial experiment with glycerol concentrations of 2% glycerol (G2) and 8% glycerol (G8) and P188 concentrations of 0% (P0), 0.1% (P0.1), 0.5% (P0.5), and 1% (P1) as fixed effects, with replicate (seven) as a random effect. Interactions between glycerol and P188 were found, with G2P1 yielding higher quality and fertility. G8P0.5 yielded better in most parameters, however, not reaching G2P1. G2P1 showed significantly higher results for total and progressive motility, kinetic parameters (average path velocity, straight-line velocity, and linearity), membrane functionality, viability, mitochondrial activity, and ATP content and lower apoptosis, dead sperm, and reactive oxygen species production. G2P1 resulted in the highest percentages of fertilized and hatched eggs, with no effects in the hatched eggs ratio. Interestingly, G2 was less efficient in many parameters than G8 when combined with P0 and P0.1, being equivalent to G8 with P0.5 and superior to any G8 treatment as G2P1. In conclusion, P188 could improve rooster semen cryopreservation and allow reduction of glycerol in extenders, with a consequent impact in the poultry industry.
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Affiliation(s)
- Mahdieh Mehdipour
- Department of Animal Science, College of Agriculture, University of Tabriz, Tabriz, Iran
| | - Hossein Daghigh Kia
- Department of Animal Science, College of Agriculture, University of Tabriz, Tabriz, Iran.
| | - Felipe Martínez-Pastor
- Institute of Animal Health and Cattle Development (INDEGSAL) and Department of Molecular Biology (Cell Biology), University of León, León 24071, Spain
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