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Priming Mesenchymal Stem Cells with Lipopolysaccharide Boosts the Immunomodulatory and Regenerative Activity of Secreted Extracellular Vesicles. 用脂多糖诱导间充质干细胞可增强分泌型细胞外囊泡的免疫调节和再生活性
IF 4.9 3区 医学
Pharmaceutics Pub Date : 2024-10-10 DOI: 10.3390/pharmaceutics16101316
Aina Areny-Balagueró, Marta Camprubí-Rimblas, Elena Campaña-Duel, Anna Solé-Porta, Adrián Ceccato, Anna Roig, John G Laffey, Daniel Closa, Antonio Artigas
{"title":"Priming Mesenchymal Stem Cells with Lipopolysaccharide Boosts the Immunomodulatory and Regenerative Activity of Secreted Extracellular Vesicles.","authors":"Aina Areny-Balagueró, Marta Camprubí-Rimblas, Elena Campaña-Duel, Anna Solé-Porta, Adrián Ceccato, Anna Roig, John G Laffey, Daniel Closa, Antonio Artigas","doi":"10.3390/pharmaceutics16101316","DOIUrl":"https://doi.org/10.3390/pharmaceutics16101316","url":null,"abstract":"<p><p><b>Background:</b> Mesenchymal stem cells (MSCs)-derived extracellular vesicles (EVs) have been proposed as an alternative to live-cell administration for Acute Respiratory Distress Syndrome (ARDS). MSC-EVs can be chiefly influenced by the environment to which the MSCs are exposed. Here, lipopolysaccharide (LPS) priming of MSCs was used as a strategy to boost the natural therapeutic potential of the EVs in acute lung injury (ALI). <b>Methods:</b> The regenerative and immunemodulatory effect of LPS-primed MSC-EVs (LPS-EVs) and non-primed MSC-EVs (C-EVs) were evaluated in vitro on alveolar epithelial cells and macrophage-like THP-1 cells. In vivo, ALI was induced in adult male rats by the intrapulmonary instillation of HCl and LPS. Rats (<i>n</i> = 8 to 22/group) were randomized to receive a single bolus (1 × 10<sup>8</sup> particles) of LPS-EVs, C-EVs, or saline. Lung injury severity was assessed at 72 h in lung tissue and bronchoalveolar lavage. <b>Results:</b> In vitro, LPS-EVs improved wound regeneration and attenuated the inflammatory response triggered by the <i>P. aeruginosa</i> infection, enhancing the M2 macrophage phenotype. In in vivo studies, LPS-EVs, but not C-EVs, significantly decreased the neutrophilic infiltration and myeloperoxidase (MPO) activity in lung tissue. Alveolar macrophages from LPS-EVs-treated animals exhibited a reduced expression of CXCL-1, a key neutrophil chemoattractant. However, both C-EVs and LPS-EVs reduced alveolar epithelial and endothelial permeability, mitigating lung damage. <b>Conclusions:</b> EVs from LPS-primed MSCs resulted in a better resolution of ALI, achieving a greater balance in neutrophil infiltration and activation, while avoiding the complete disruption of the alveolar barrier. This opens new avenues, paving the way for the clinical implementation of cell-based therapies.</p>","PeriodicalId":19894,"journal":{"name":"Pharmaceutics","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510928/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Human Brain-Chip for Modeling Brain Pathologies and Screening Blood-Brain Barrier Crossing Therapeutic Strategies. 用于大脑病理建模和筛选血脑屏障穿越治疗策略的人脑芯片。
IF 4.9 3区 医学
Pharmaceutics Pub Date : 2024-10-10 DOI: 10.3390/pharmaceutics16101314
Shek Man Chim, Kristen Howell, Alexandros Kokkosis, Brian Zambrowicz, Katia Karalis, Elias Pavlopoulos
{"title":"A Human Brain-Chip for Modeling Brain Pathologies and Screening Blood-Brain Barrier Crossing Therapeutic Strategies.","authors":"Shek Man Chim, Kristen Howell, Alexandros Kokkosis, Brian Zambrowicz, Katia Karalis, Elias Pavlopoulos","doi":"10.3390/pharmaceutics16101314","DOIUrl":"https://doi.org/10.3390/pharmaceutics16101314","url":null,"abstract":"<p><p><b>Background/Objectives:</b> The limited translatability of preclinical experimental findings to patients remains an obstacle for successful treatment of brain diseases. Relevant models to elucidate mechanisms behind brain pathogenesis, including cell-specific contributions and cell-cell interactions, and support successful targeting and prediction of drug responses in humans are urgently needed, given the species differences in brain and blood-brain barrier (BBB) functions. Human microphysiological systems (MPS), such as Organ-Chips, are emerging as a promising approach to address these challenges. Here, we examined and advanced a Brain-Chip that recapitulates aspects of the human cortical parenchyma and the BBB in one model. <b>Methods:</b> We utilized human primary astrocytes and pericytes, human induced pluripotent stem cell (hiPSC)-derived cortical neurons, and hiPSC-derived brain microvascular endothelial-like cells and included for the first time on-chip hiPSC-derived microglia. <b>Results:</b> Using Tumor necrosis factor alpha (TNFα) to emulate neuroinflammation, we demonstrate that our model recapitulates in vivo-relevant responses. Importantly, we show microglia-derived responses, highlighting the Brain-Chip's sensitivity to capture cell-specific contributions in human disease-associated pathology. We then tested BBB crossing of human transferrin receptor antibodies and conjugated adeno-associated viruses. We demonstrate successful in vitro/in vivo correlation in identifying crossing differences, underscoring the model's capacity as a screening platform for BBB crossing therapeutic strategies and ability to predict in vivo responses. <b>Conclusions:</b> These findings highlight the potential of the Brain-Chip as a reliable and time-efficient model to support therapeutic development and provide mechanistic insights into brain diseases, adding to the growing evidence supporting the value of MPS in translational research and drug discovery.</p>","PeriodicalId":19894,"journal":{"name":"Pharmaceutics","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510380/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Capparis sepiaria-Loaded Sodium Alginate Single- and Double-Layer Membrane Composites for Wound Healing. 用于伤口愈合的藻酸钠单层和双层膜复合材料(Capparis sepiaria-Loaded Sodium Alginate Single- and Double-Layer Membrane Composites)。
IF 4.9 3区 医学
Pharmaceutics Pub Date : 2024-10-10 DOI: 10.3390/pharmaceutics16101313
Sindi P Ndlovu, Keolebogile S C M Motaung, Mapula Razwinani, Sibusiso Alven, Samson A Adeyemi, Philemon N Ubanako, Lindokuhle M Ngema, Thierry Y Fonkui, Derek T Ndinteh, Pradeep Kumar, Yahya E Choonara, Blessing A Aderibigbe
{"title":"<i>Capparis sepiaria</i>-Loaded Sodium Alginate Single- and Double-Layer Membrane Composites for Wound Healing.","authors":"Sindi P Ndlovu, Keolebogile S C M Motaung, Mapula Razwinani, Sibusiso Alven, Samson A Adeyemi, Philemon N Ubanako, Lindokuhle M Ngema, Thierry Y Fonkui, Derek T Ndinteh, Pradeep Kumar, Yahya E Choonara, Blessing A Aderibigbe","doi":"10.3390/pharmaceutics16101313","DOIUrl":"https://doi.org/10.3390/pharmaceutics16101313","url":null,"abstract":"<p><p><b>Background</b>: Effective wound dressing is the key solution to combating the increased death rate and prolonged hospital stay common to patients with wounds. <b>Methods</b>: Sodium alginate-based single- and double-layer membranes incorporated with <i>Capparis sepiaria</i> root extract were designed using the solvent-casting method from a combination of polyvinyl alcohol (PVA), Pluronic F127 (PF127), and gum acacia. <b>Results</b>: The successful preparation of the membranes and loading of the extract were confirmed using Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The prepared membranes were biodegradable and non-toxic to human skin cells (HaCaT), with high biocompatibility of 92 to 112% cell viability and good hemocompatibility with absorbance ranging from 0.17 to 0.30. The membrane's highest water vapor transmission rate was 1654.7333 ± 0.736 g/m<sup>2</sup>/day and the highest % porosity was 76%. The membranes supported cellular adhesion and migration, with the highest closure being 68% after 4 days compared with the commercial wound dressings. This membrane exhibited enhanced antimicrobial activity against the pathogens responsible for wound infections. <b>Conclusions</b>: The distinct features of the membranes make them promising wound dressings for treating infected wounds.</p>","PeriodicalId":19894,"journal":{"name":"Pharmaceutics","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510319/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Clindamycin-Loaded Polyhydroxyalkanoate Nanoparticles for the Treatment of Methicillin-Resistant Staphylococcus aureus-Infected Wounds. 用于治疗耐甲氧西林金黄色葡萄球菌感染伤口的克林霉素负载型聚羟基烷酸纳米粒子。
IF 4.9 3区 医学
Pharmaceutics Pub Date : 2024-10-10 DOI: 10.3390/pharmaceutics16101315
Muneeb Ullah, Juho Lee, Nurhasni Hasan, Md Lukman Hakim, Dongmin Kwak, Hyunwoo Kim, Eunhye Lee, Jeesoo Ahn, Bora Mun, Eun Hee Lee, Yunjin Jung, Jin-Wook Yoo
{"title":"Clindamycin-Loaded Polyhydroxyalkanoate Nanoparticles for the Treatment of Methicillin-Resistant <i>Staphylococcus aureus-</i>Infected Wounds.","authors":"Muneeb Ullah, Juho Lee, Nurhasni Hasan, Md Lukman Hakim, Dongmin Kwak, Hyunwoo Kim, Eunhye Lee, Jeesoo Ahn, Bora Mun, Eun Hee Lee, Yunjin Jung, Jin-Wook Yoo","doi":"10.3390/pharmaceutics16101315","DOIUrl":"https://doi.org/10.3390/pharmaceutics16101315","url":null,"abstract":"<p><p><b>Background/Objectives:</b> Owing to the growing resistance of methicillin-resistant <i>Staphylococcus aureus</i> (MRSA) to conventional antibiotics, the development of innovative therapeutic strategies for the treatment of MRSA-infected cutaneous wounds poses a significant challenge. <b>Methods:</b> Here, by using polyhydroxyalkanoates (PHA), emerging biodegradable and biocompatible polymers naturally produced by various microorganisms, we developed clindamycin-loaded PHA nanoparticles (Cly-PHA NPs) as a novel approach for the treatment of MRSA-infected cutaneous wounds. <b>Results:</b> Cly-PHA NPs were characterized in terms of mean particle size (216.2 ± 38.9 nm), polydispersity index (0.093 ± 0.03), zeta potential (11.3 ± 0.5 mV), and drug loading (6.76 ± 0.19%). Owing to the sustained release of clindamycin over 2 days provided by the PHA, Cly-PHA NPs exhibited potent antibacterial effects against MRSA. Furthermore, Cly-PHA NPs significantly facilitated wound healing in a mouse model of MRSA-infected full-thickness wounds by effectively eradicating MRSA from the wound bed. <b>Conclusions:</b> Therefore, our results suggest that Cly-PHA NPs offer a promising approach for combating MRSA infections and accelerating cutaneous wound healing.</p>","PeriodicalId":19894,"journal":{"name":"Pharmaceutics","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510387/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characteristics of the Enterococcus Phage vB_EfS_SE, and the Properties of Its Chimeric Endolysins Harboring a PlySE-Carbohydrate-Binding Domain and a Synthetic Enzymatic Domain. 肠球菌噬菌体 vB_EfS_SE 的特征及其含有 PlySE-碳水化合物结合域和合成酶域的嵌合内溶素的特性。
IF 4.9 3区 医学
Pharmaceutics Pub Date : 2024-10-09 DOI: 10.3390/pharmaceutics16101312
Rustam M Buzikov, Vladislav A Kulyabin, Olga N Koposova, Vyacheslav A Arlyapov, Andrey M Shadrin
{"title":"Characteristics of the Enterococcus Phage vB_EfS_SE, and the Properties of Its Chimeric Endolysins Harboring a PlySE-Carbohydrate-Binding Domain and a Synthetic Enzymatic Domain.","authors":"Rustam M Buzikov, Vladislav A Kulyabin, Olga N Koposova, Vyacheslav A Arlyapov, Andrey M Shadrin","doi":"10.3390/pharmaceutics16101312","DOIUrl":"https://doi.org/10.3390/pharmaceutics16101312","url":null,"abstract":"<p><p><b>Background/Objectives:</b> The World Health Organization has selected enterococci as one of the priority multidrug-resistant microorganisms for the development of new antibacterial drugs. Bacteriophages are promising antibacterial agents, but the biology of bacteriophages requires deeper understanding. <b>Methods:</b> The vB_EfS_SE phage which is capable of infecting four species of the genus <i>Enterococci</i> was isolated from sewage plant. The complete genome of the vB_EfS_SE phage was sequenced using illumina technology. The endolysin gene was cloned into pBAD18 expression vector. Two chimeric endolysins were engineered using the vB_EfS_SE carbohydrate-binding domain (CBD) and replacing its enzymatically active domain (EAD). <b>Results:</b> The bacteriophage exhibits promising lytic properties and persists at temperatures of 40 °C and below, and under pH conditions ranging from 5 to 11. The genome sequence is 57,904 bp in length. The vB_EfS_SE endolysin PlySE and chimeric endolysins PlyIME-SE and PlySheep-SE were found to have the same range of specificity, but different thermostability properties and a different pH range for enzyme activity. <b>Conclusions:</b> Taking together the results obtained in this work and other published studies, we can highly appreciate the potential of <i>Saphexavirus</i> phages and their endolysins as novel antibacterial compounds.</p>","PeriodicalId":19894,"journal":{"name":"Pharmaceutics","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510935/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Provinols™, a Polyphenolic Extract of Red Wine, Inhibits In-Stent Neointimal Growth in Cholesterol-Fed Rabbit. 红葡萄酒中的一种多酚提取物 Provinols™ 可抑制胆固醇喂养家兔支架内新血管的生长。
IF 4.9 3区 医学
Pharmaceutics Pub Date : 2024-10-09 DOI: 10.3390/pharmaceutics16101311
Meyer Elbaz, Gérald Roul, Ramaroson Andriantsitohaina
{"title":"Provinols™, a Polyphenolic Extract of Red Wine, Inhibits In-Stent Neointimal Growth in Cholesterol-Fed Rabbit.","authors":"Meyer Elbaz, Gérald Roul, Ramaroson Andriantsitohaina","doi":"10.3390/pharmaceutics16101311","DOIUrl":"https://doi.org/10.3390/pharmaceutics16101311","url":null,"abstract":"<p><p><b>Background/Objectives:</b> Epidemiological studies indicate a potential correlation between the consumption of polyphenols and a reduced risk of developing cardiovascular disorders. The present study investigates the potential of a red wine polyphenol oral extract, Provinols™, to reduce neointimal hyperplasia following angioplasty in a hypercholesterolemic rabbit model. <b>Methods:</b> New Zealand white rabbits were fed 1% cholesterol-enriched chow for a period of eight weeks prior to the induction of iliac balloon injury and subsequent stent placement. Following the implantation of the stent, Provinols™ (20 mg/kg/day) or an identical placebo was administered orally for a period of four weeks in a randomized manner. Twenty-eight days following the stenting procedure, the arteries were harvested after euthanasia and subjected to histology assignment analysis. <b>Results:</b> The administration of Provinols™ did not result in a statistically significant change in either blood pressure or plasma cholesterol levels. However, Provinols™ treatment led to a notable reduction in the growth of the intima within the stented area, as well as a reduction in the thickness and surface area of the intima. It is of note that treatment with Provinols™ was associated with a reduction in the accumulation of fat within the arteries and a diminished inflammatory response to injury. <b>Conclusions:</b> The findings demonstrate that oral administration of Provinols™ has the potential to reduce in-stent neointimal growth and lipid deposition, likely due to its anti-inflammatory properties in iliac arteries from hypercholesterolemic rabbits. Additionally, these findings provide an evidence-based rationale for the potential therapeutic benefits of plant-derived polyphenols in the prevention of restenosis associated with stent placement.</p>","PeriodicalId":19894,"journal":{"name":"Pharmaceutics","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510810/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of Polymer Film Thickness on Drug Release from Fluidized Bed Coated Pellets and Intended Process and Product Control. 聚合物膜厚对流化床包衣颗粒药物释放的影响以及预期的工艺和产品控制。
IF 4.9 3区 医学
Pharmaceutics Pub Date : 2024-10-08 DOI: 10.3390/pharmaceutics16101307
Marcel Langner, Florian Priese, Bertram Wolf
{"title":"Influence of Polymer Film Thickness on Drug Release from Fluidized Bed Coated Pellets and Intended Process and Product Control.","authors":"Marcel Langner, Florian Priese, Bertram Wolf","doi":"10.3390/pharmaceutics16101307","DOIUrl":"https://doi.org/10.3390/pharmaceutics16101307","url":null,"abstract":"<p><strong>Background/objectives: </strong>Coated drug pellets enjoy widespread use in hard gelatine capsules. In heterogeneous pellets, the drug substance is layered onto core pellets. Coatings are often applied to generate a retarded release or an enteric coating.</p><p><strong>Methods: </strong>In the present study, the thickness of a polymer coating layer on drug pellets was correlated to the drug release kinetics.</p><p><strong>Results: </strong>The question should be answered whether it is possible to stop the coating process when a layer thickness referring to an intended drug release is achieved. Inert pellets were first coated with sodium benzoate and second with different amounts of water insoluble polyacrylate in a fluidized bed apparatus equipped with a Wurster inlet. The whole process was controlled in-line and at-line with process analytical technology by the measurement of the particle size and the layer thickness. The in-vitro sodium benzoate release was investigated, and the data were linearized by different standard models and compared with the polyacrylate layer thickness. With increasing polyacrylate layer thickness the release rate diminishes. The superposition of several processes influencing the release results in release profiles corresponding approximately to first order kinetics. The coating layer thickness corresponds to a determined drug release profile.</p><p><strong>Conclusions: </strong>The manufacturing of coated drug pellets with intended drug release is possible by coating process control and layer thickness measurement. Preliminary investigations are necessary for different formulations.</p>","PeriodicalId":19894,"journal":{"name":"Pharmaceutics","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510853/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Immortelle Essential-Oil-Enriched Hydrogel for Diabetic Wound Repair: Development, Characterization, and In Vivo Efficacy Assessment. 用于糖尿病伤口修复的仙人掌精油富集水凝胶:开发、表征和体内疗效评估。
IF 4.9 3区 医学
Pharmaceutics Pub Date : 2024-10-08 DOI: 10.3390/pharmaceutics16101309
Marijana Andjic, Jovana Bradic, Aleksandar Kocovic, Marko Simic, Veljko Krstonosic, Ivan Capo, Vladimir Jakovljevic, Nevena Lazarevic
{"title":"Immortelle Essential-Oil-Enriched Hydrogel for Diabetic Wound Repair: Development, Characterization, and In Vivo Efficacy Assessment.","authors":"Marijana Andjic, Jovana Bradic, Aleksandar Kocovic, Marko Simic, Veljko Krstonosic, Ivan Capo, Vladimir Jakovljevic, Nevena Lazarevic","doi":"10.3390/pharmaceutics16101309","DOIUrl":"https://doi.org/10.3390/pharmaceutics16101309","url":null,"abstract":"<p><p><b>Background:</b> Alarming data revealed that 19% to 34% of adults with diabetes mellitus develop chronic wounds, which are characterized by impaired healing and a higher risk of infections. Inspired by the traditional use of immortelle for wound healing and the lack of scientific evidence regarding how it thoroughly influences tissue regeneration, we aimed to formulate a hydrogel loaded with immortelle essential oil and assess its effectiveness on diabetic excision wounds. <b>Methods:</b> The rheological properties of the hydrogel, an in vivo safety test, as well as wound healing capacity, were determined in rats with induced diabetes and excision wounds. Diabetic rats were divided into four groups: untreated, treated with 1% silver sulfadiazine ointment, treated with a gel base, and treated with the immortelle essential oil-based hydrogel. <b>Results:</b> It was revealed that the hydrogel exerts pseudoplastic behavior and has no potential to act as an irritant, thus highlighting its suitability for skin application. Moreover, analysis of macroscopic, biochemical, and histopathological data revealed that the immortelle essential oil-based hydrogel significantly improves wound repair. Superior re-epithelialization, scar maturation, and increased collagen fiber density were achieved after immortelle essential oil-based gel application. <b>Conclusions:</b> These findings suggest that the immortelle essential oil-based hydrogel could be a natural, safe, and effective wound-healing dressing.</p>","PeriodicalId":19894,"journal":{"name":"Pharmaceutics","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510981/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Establishing a Relationship between In Vitro Potency in Cell-Based Assays and Clinical Efficacious Concentrations for Approved GLP-1 Receptor Agonists. 建立已获批准的 GLP-1 受体激动剂的细胞分析体外效力与临床有效浓度之间的关系。
IF 4.9 3区 医学
Pharmaceutics Pub Date : 2024-10-08 DOI: 10.3390/pharmaceutics16101310
Alessandro Boianelli, Pär Nordell, Joseph Earl, Jacqueline Naylor, David Hornigold, Rasmus Jansson Löfmark, Monika Sundqvist
{"title":"Establishing a Relationship between In Vitro Potency in Cell-Based Assays and Clinical Efficacious Concentrations for Approved GLP-1 Receptor Agonists.","authors":"Alessandro Boianelli, Pär Nordell, Joseph Earl, Jacqueline Naylor, David Hornigold, Rasmus Jansson Löfmark, Monika Sundqvist","doi":"10.3390/pharmaceutics16101310","DOIUrl":"https://doi.org/10.3390/pharmaceutics16101310","url":null,"abstract":"<p><p><b>Background:</b> Glucagon-like peptide-1 receptor agonists (GLP-1RAs) play an important role in the treatment of type 2 diabetes (T2D) and obesity. The relationship between efficacy and dosing regimen has been studied extensively for this class of molecules. However, a comprehensive analysis of the translation of in vitro data to in vivo efficacious exposure is still lacking. <b>Methods:</b> We collected clinical pharmacokinetics for five approved GLP-1RAs to enable the simulation of exposure profiles and compared published clinical efficacy endpoints (HbA1c and body weight) with in-house in vitro potency values generated in different cell-based assays. Additionally, we investigated the correlation with target coverage, expressed as a ratio between the steady state drug exposure and unbound potency, body weight, or HbA1c reduction in patients with T2D. <b>Results:</b> We found that the best correlation with in vivo efficacy was seen for in vitro potency data generated in cellular assays performed in the absence of any serum albumin or using ovalbumin. Residual variability was larger using in vitro potency data generated in endogenous cell lines or in the presence of human serum albumin. For the human receptor assay with no albumin, exposures above 100-fold in vitro EC50 resulted in >1.5% point HbA1c reduction, while a 5% BW reduction was related to approximately 3× higher exposures. A similar relationship was seen in the ovalbumin assay. <b>Conclusions:</b> Overall, the relationship established for in vitro potency and in vivo efficacy will help to increase confidence in human dose prediction and trial design for new GLP-1RAs in the discovery and early clinical phases.</p>","PeriodicalId":19894,"journal":{"name":"Pharmaceutics","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510446/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mannose and Lactobionic Acid in Nasal Vaccination: Enhancing Antigen Delivery via C-Type Lectin Receptors. 鼻腔疫苗接种中的甘露糖和乳糖酸:通过 C-Type Lectin 受体增强抗原递送。
IF 4.9 3区 医学
Pharmaceutics Pub Date : 2024-10-08 DOI: 10.3390/pharmaceutics16101308
Mariana Colaço, Maria T Cruz, Luís Pereira de Almeida, Olga Borges
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