PharmaceuticsPub Date : 2024-09-30DOI: 10.3390/pharmaceutics16101277
Dipa K Israni, Neha R Raghani, Jhanvi Soni, Mansi Shah, Bhupendra G Prajapati, Mehul R Chorawala, Supachoke Mangmool, Sudarshan Singh, Chuda Chittasupho
{"title":"Harnessing <i>Cannabis sativa</i> Oil for Enhanced Skin Wound Healing: The Role of Reactive Oxygen Species Regulation.","authors":"Dipa K Israni, Neha R Raghani, Jhanvi Soni, Mansi Shah, Bhupendra G Prajapati, Mehul R Chorawala, Supachoke Mangmool, Sudarshan Singh, Chuda Chittasupho","doi":"10.3390/pharmaceutics16101277","DOIUrl":"https://doi.org/10.3390/pharmaceutics16101277","url":null,"abstract":"<p><p><i>Cannabis sativa</i> emerges as a noteworthy candidate for its medicinal potential, particularly in wound healing. This review article explores the efficacy of cannabis oil in reducing reactive oxygen species (ROS) during the healing of acute and chronic wounds, comparing it to the standard treatments. ROS, produced from various internal and external sources, play a crucial role in wound development by causing cell and tissue damage. Understanding the role of ROS on skin wounds is essential, as they act both as signaling molecules and contributors to oxidative damage. Cannabis oil, recognized for its antioxidant properties, may help mitigate oxidative damage by scavenging ROS and upregulating antioxidative mechanisms, potentially enhancing wound healing. This review emphasizes ongoing research and the future potential of cannabis oil in dermatological treatments, highlighted through clinical studies and patent updates. Despite its promising benefits, optimizing cannabis oil formulations for therapeutic applications remains a challenge, underscoring the need for further research to realize its medicinal capabilities in wounds.</p>","PeriodicalId":19894,"journal":{"name":"Pharmaceutics","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510192/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505656","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}
PharmaceuticsPub Date : 2024-09-30DOI: 10.3390/pharmaceutics16101279
Nian N N Maarof, Emilia Abdulmalek, Sharida Fakurazi, Mohd Basyaruddin Abdul Rahman
{"title":"Correction: Maarof et al. Biodegradable Carbonate Apatite Nanoparticle as a Delivery System to Promote Afatinib Delivery for Non-Small Cell Lung Cancer Treatment. <i>Pharmaceutics</i> 2022, <i>14</i>, 1230.","authors":"Nian N N Maarof, Emilia Abdulmalek, Sharida Fakurazi, Mohd Basyaruddin Abdul Rahman","doi":"10.3390/pharmaceutics16101279","DOIUrl":"https://doi.org/10.3390/pharmaceutics16101279","url":null,"abstract":"<p><p>In the original publication, there was a mistake in the legend for <b>\"Figure 3\"</b> [...].</p>","PeriodicalId":19894,"journal":{"name":"Pharmaceutics","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510675/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505632","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}
PharmaceuticsPub Date : 2024-09-30DOI: 10.3390/pharmaceutics16101283
HanBi Kim, InSuk Kwak, MiSun Kim, JiYoung Um, SoYeon Lee, BoYoung Chung, ChunWook Park, JongGu Won, HyeOne Kim
{"title":"Evaluation of a Cosmetic Formulation Containing Arginine Glutamate in Patients with Burn Scars: A Pilot Study.","authors":"HanBi Kim, InSuk Kwak, MiSun Kim, JiYoung Um, SoYeon Lee, BoYoung Chung, ChunWook Park, JongGu Won, HyeOne Kim","doi":"10.3390/pharmaceutics16101283","DOIUrl":"https://doi.org/10.3390/pharmaceutics16101283","url":null,"abstract":"<p><p><b>Background:</b> Patients with burn scars require effective treatments able to alleviate dry skin and persistent itching. Ion pairing has been employed in cosmetic formulations to enhance solubility in solvents and improve skin permeability. To evaluate the efficacy and safety of the cosmetic formula \"RE:pair (arginine-glutamate ion pair)\", we analyzed scar size, itching and pain, skin barrier function, scar scale evaluation, and satisfaction in our study participants. <b>Methods:</b> A total of 10 patients were recruited, and the formula was used twice a day for up to 4 weeks. <b>Results:</b> Itching was significantly alleviated after 4 weeks of treatment (95% CI = -0.11-1.71) compared to before application (95% CI = 2.11-4.68). Transepidermal water loss (TEWL) showed an 11% improvement after 4 weeks (95% CI = 3.43-8.83) compared to before application (95% CI = 3.93-9.88), and skin coreneum hydration (SCH) showed a significant 41% improvement after 4 weeks (95% CI = 43.01-62.38) compared to before application (95% CI = 20.94-40.65). <b>Conclusions:</b> Based on the confirmation that RE:pair improves skin barrier function and relieves itching, it is likely to be used as a topical treatment for burn scars pending evaluation in follow-up studies (IRB no. HG2023-016).</p>","PeriodicalId":19894,"journal":{"name":"Pharmaceutics","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510376/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505652","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}
{"title":"Application of Gold Nanoparticles for Improvement of Electroporation-Assisted Drug Delivery and Bleomycin Electrochemotherapy.","authors":"Barbora Lekešytė, Eglė Mickevičiūtė, Paulina Malakauskaitė, Anna Szewczyk, Eivina Radzevičiūtė-Valčiukė, Veronika Malyško-Ptašinskė, Augustinas Želvys, Natalija German, Almira Ramanavičienė, Julita Kulbacka, Jurij Novickij, Vitalij Novickij","doi":"10.3390/pharmaceutics16101278","DOIUrl":"https://doi.org/10.3390/pharmaceutics16101278","url":null,"abstract":"<p><p><b>Background/Objectives:</b> Electrochemotherapy (ECT) is a safe and efficient method of targeted drug delivery using pulsed electric fields (PEF), one that is based on the phenomenon of electroporation. However, the problems of electric field homogeneity within a tumor can cause a diminishing of the treatment efficacy, resulting only in partial response to the procedure. This work used gold nano-particles for electric field amplification, introducing the capability to improve available elec-trochemotherapy methods and solve problems associated with field non-homogeneity. <b>Methods:</b> We characterized the potential use of gold nanoparticles of 13 nm diameter (AuNPs: 13 nm) in combination with microsecond (0.6-1.5 kV/cm × 100 μs × 8 (1 Hz)) and nanosecond (6 kV/cm × 300-700 ns × 100 (1, 10, 100 kHz and 1 MHz)) electric field pulses. Finally, we tested the most prominent protocols (microsecond and nanosecond) in the context of bleomycin-based electrochemotherapy (<i>4T1</i> mammary cancer cell line). <b>Results:</b> In the nano-pulse range, the synergistic effects (improved permeabilization and electrotransfer) were profound, with increased pulse burst frequency. Addi-tionally, AuNPs not only reduced the permeabilization thresholds but also affected pore resealing. It was shown that a saturated cytotoxic response with AuNPs can be triggered at significantly lower electric fields and that the AuNPs themselves are non-toxic for the cells either separately or in combination with bleomycin. <b>Conclusions:</b> The used electric fields are considered sub-threshold and/or not applicable for electrochemotherapy, however, when combined with AuNPs results in successful ECT, indicating the methodology's prospective applicability as an anticancer treatment method.</p>","PeriodicalId":19894,"journal":{"name":"Pharmaceutics","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510895/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505598","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}
{"title":"Development of Quercetin Solid Dispersion-Loaded Dissolving Microneedles and In Vitro Investigation of Their Anti-Melanoma Activities.","authors":"Monsicha Khuanekkaphan, Kesinee Netsomboon, Adryan Fristiohady, Rathapon Asasutjarit","doi":"10.3390/pharmaceutics16101276","DOIUrl":"10.3390/pharmaceutics16101276","url":null,"abstract":"<p><p><b>Background:</b> Melanoma is a skin cancer that requires early treatment to prevent metastasis. In particular, the superficial spreading melanoma, excisional surgery with local administration of anti-cancer drugs via microneedles is currently considered a potential combination therapy. Quercetin is a natural flavonoid having activities against melanoma cells. Unfortunately, the therapeutic effect is limited by its poor water solubility. <b>Objectives:</b> This study aimed to develop formulations of solid dispersion-loaded dissolving microneedles (SD-DMNs) of quercetin and to investigate their in vitro activities against melanoma cells. <b>Methods</b>: Quercetin solid dispersions (Q-SDs) were prepared using polyvinylpyrrolidone K30 (PVP) via a solvent technique. The optimized Q-SD was selected for preparing Q-SD-loaded dissolving microneedles (Q-SD-DMNs) using a mold casting method. <b>Results</b>: Q-SDs had higher water solubility than that of quercetin by 5-10 times depending on the ratio of quercetin-to-PVP. The presence of quercetin in the Q-SD and Q-SD-DMN were in an amorphous form. The obtained Q-SD-DMNs had pyramid-shaped microneedles. Their strength depended on the compositions, i.e., ratios of hyaluronic acid-to-sodium carboxymethylcellulose and the content of Q-SD. An optimized Q-SD-DMN increased the in vitro skin permeation of quercetin compared to that of microneedles containing quercetin (without being processed). From the molecular investigations, the optimized Q-SD-DMN reduced the viability of the A375 cells (melanoma cells) through the induction of cell apoptosis. It suppressed Bcl-2 gene expression and led to a lower content of Bcl-2 in the cells. <b>Conclusions:</b> The optimized Q-SD-DMN has a potential for use in further in vivo studies as a synergistic method of melanoma treatment.</p>","PeriodicalId":19894,"journal":{"name":"Pharmaceutics","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11514592/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505643","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}
PharmaceuticsPub Date : 2024-09-30DOI: 10.3390/pharmaceutics16101290
Claudia Camarero-Hoyos, Inés Bouzón-Arnáiz, Yunuen Avalos-Padilla, Antonino Nicolò Fallica, Lucía Román-Álamo, Miriam Ramírez, Emma Portabella, Ona Cuspinera, Daniela Currea-Ayala, Marc Orozco-Quer, Maria Ribera, Inga Siden-Kiamos, Lefteris Spanos, Valentín Iglesias, Benigno Crespo, Sara Viera, David Andreu, Elena Sulleiro, Francesc Zarzuela, Nerea Urtasun, Sandra Pérez-Torras, Marçal Pastor-Anglada, Elsa M Arce, Diego Muñoz-Torrero, Xavier Fernàndez-Busquets
{"title":"Leveraging the Aggregated Protein Dye YAT2150 for Malaria Chemotherapy.","authors":"Claudia Camarero-Hoyos, Inés Bouzón-Arnáiz, Yunuen Avalos-Padilla, Antonino Nicolò Fallica, Lucía Román-Álamo, Miriam Ramírez, Emma Portabella, Ona Cuspinera, Daniela Currea-Ayala, Marc Orozco-Quer, Maria Ribera, Inga Siden-Kiamos, Lefteris Spanos, Valentín Iglesias, Benigno Crespo, Sara Viera, David Andreu, Elena Sulleiro, Francesc Zarzuela, Nerea Urtasun, Sandra Pérez-Torras, Marçal Pastor-Anglada, Elsa M Arce, Diego Muñoz-Torrero, Xavier Fernàndez-Busquets","doi":"10.3390/pharmaceutics16101290","DOIUrl":"10.3390/pharmaceutics16101290","url":null,"abstract":"<p><p><b>Background/Objectives</b>: YAT2150 is a first-in-class antiplasmodial compound that has been recently proposed as a new interesting drug for malaria therapy. <b>Methods/Results</b>: The fluorescence of YAT2150 rapidly increases upon its entry into <i>Plasmodium</i>, a property that can be of use for the design of highly sensitive diagnostic approaches. YAT2150 blocks the in vitro development of the ookinete stage of <i>Plasmodium</i> and, when added to an infected blood meal, inhibits oocyst formation in the mosquito. Thus, the compound could possibly contribute to future transmission-blocking antimalarial strategies. Cell influx/efflux studies in Caco-2 cells suggest that YAT2150 is internalized by endocytosis and also through the OATP2B1 transporter, whereas its main export route would be via OSTα. YAT2150 has an overall favorable drug metabolism and pharmacokinetics profile, and its moderate cytotoxicity can be significantly reduced upon encapsulation in immunoliposomes, which leads to a dramatic increase in the drug selectivity index to values close to 1000. Although YAT2150 binds amyloid-forming peptides, its in vitro fluorescence emission is stronger upon association with peptides that form amorphous aggregates, suggesting that regions enriched in unstructured proteins are the preferential binding sites of the drug inside <i>Plasmodium</i> cells. The reduction of protein aggregation in the parasite after YAT2150 treatment, which has been suggested to be directly related to the drug's mode of action, is also observed following treatment with quinoline antimalarials like chloroquine and primaquine. <b>Conclusions</b>: Altogether, the data presented here indicate that YAT2150 can represent the spearhead of a new family of compounds for malaria diagnosis and therapy due to its presumed novel mode of action based on the interaction with functional protein aggregates in the pathogen.</p>","PeriodicalId":19894,"journal":{"name":"Pharmaceutics","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11514582/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505667","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}
PharmaceuticsPub Date : 2024-09-30DOI: 10.3390/pharmaceutics16101281
Luis Exequiel Ibarra, Simona Camorani, Lisa Agnello, Emilia Pedone, Luciano Pirone, Carlos Alberto Chesta, Rodrigo Emiliano Palacios, Monica Fedele, Laura Cerchia
{"title":"Correction: Ibarra et al. Selective Photo-Assisted Eradication of Triple-Negative Breast Cancer Cells through Aptamer Decoration of Doped Conjugated Polymer Nanoparticles. <i>Pharmaceutics</i> 2022, <i>14</i>, 626.","authors":"Luis Exequiel Ibarra, Simona Camorani, Lisa Agnello, Emilia Pedone, Luciano Pirone, Carlos Alberto Chesta, Rodrigo Emiliano Palacios, Monica Fedele, Laura Cerchia","doi":"10.3390/pharmaceutics16101281","DOIUrl":"https://doi.org/10.3390/pharmaceutics16101281","url":null,"abstract":"<p><p>In the original publication [...].</p>","PeriodicalId":19894,"journal":{"name":"Pharmaceutics","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510362/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505631","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}
PharmaceuticsPub Date : 2024-09-30DOI: 10.3390/pharmaceutics16101287
Roya Mohammadi-Meyabadi, Mireia Mallandrich, Negar Beirampour, Núria Garrós, Lupe Carolina Espinoza, Lilian Sosa, Joaquim Suñer-Carbó, María José Rodríguez-Lagunas, María Luisa Garduño-Ramírez, Ana C Calpena-Campmany
{"title":"Lipid-Based Formulation of Baricitinib for the Topical Treatment of Psoriasis.","authors":"Roya Mohammadi-Meyabadi, Mireia Mallandrich, Negar Beirampour, Núria Garrós, Lupe Carolina Espinoza, Lilian Sosa, Joaquim Suñer-Carbó, María José Rodríguez-Lagunas, María Luisa Garduño-Ramírez, Ana C Calpena-Campmany","doi":"10.3390/pharmaceutics16101287","DOIUrl":"https://doi.org/10.3390/pharmaceutics16101287","url":null,"abstract":"<p><strong>Background: </strong>Baricitinib, commonly used for autoimmune diseases, is typically administered orally, which can lead to systemic adverse effects. A topical formulation could potentially offer localized therapeutic effects while minimizing these side effects.</p><p><strong>Objectives: </strong>This study focuses on developing a lipid-based topical formulation of baricitinib (BCT-OS) for treating psoriasis.</p><p><strong>Methods: </strong>The optimized formulation was then assessed for physical, chemical, and biopharmaceutical characterization. Furthermore, the anti-inflammatory efficacy of the formulation was tested in a model of psoriasis induced by imiquimod in mice, and its tolerance was determined by the evaluation of biomechanical skin properties and an inflammation test model induced by xylol in mice.</p><p><strong>Results: </strong>BCT-OS presented appropriate characteristics for skin administration in terms of pH, rheology, extensibility, and stability. The formulation also demonstrated a notable reduction in skin inflammation in the mouse model, and high tolerability without affecting the skin integrity.</p><p><strong>Conclusions: </strong>BCT-OS shows promise as an alternative treatment for psoriasis, offering localized therapeutic benefits with a potentially improved safety profile compared to systemic administration.</p>","PeriodicalId":19894,"journal":{"name":"Pharmaceutics","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510483/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505668","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}
PharmaceuticsPub Date : 2024-09-30DOI: 10.3390/pharmaceutics16101282
Sherif Ashraf Fahmy, Nada K Sedky, Hatem A F M Hassan, Nour M Abdel-Kader, Noha Khalil Mahdy, Muhammad Umair Amin, Eduard Preis, Udo Bakowsky
{"title":"Synergistic Enhancement of Carboplatin Efficacy through pH-Sensitive Nanoparticles Formulated Using Naturally Derived <i>Boswellia</i> Extract for Colorectal Cancer Therapy.","authors":"Sherif Ashraf Fahmy, Nada K Sedky, Hatem A F M Hassan, Nour M Abdel-Kader, Noha Khalil Mahdy, Muhammad Umair Amin, Eduard Preis, Udo Bakowsky","doi":"10.3390/pharmaceutics16101282","DOIUrl":"https://doi.org/10.3390/pharmaceutics16101282","url":null,"abstract":"<p><p>Carboplatin (Cp) is a potent chemotherapeutic agent, but its effectiveness is constrained by its associated side effects. Frankincense, an oleo-gum resin from the <i>Boswellia sacra</i> tree, has demonstrated cytotoxic activity against cancer cells. This study explored the synergistic potential of nanoparticles formulated from <i>Boswellia sacra</i> methanolic extract (BME), to enhance the therapeutic efficacy of Cp at reduced doses. Nanoparticles were prepared via the nanoprecipitation method, loaded with Cp, and coated with positively charged chitosan (CS) for enhanced cell interaction, yielding Cp@CS/BME NPs with an average size of 160.2 ± 4.6 nm and a zeta potential of 12.7 ± 1.5 mV. In vitro release studies revealed a pH-sensitive release profile, with higher release rates at pH 5.4 than at pH 7.4, highlighting the potential for targeted drug delivery in acidic tumor environments. In vitro studies on HT-29 and Caco-2 colorectal cancer cell lines demonstrated the nanoformulation's ability to significantly increase Cp uptake and cytotoxic activity. Apoptosis assays further confirmed increased induction of cell death with Cp@CS/BME NPs. Cell-cycle analysis revealed that treatment with Cp@CS/BME NPs led to a significant increase in the sub-G1 phase, indicative of enhanced apoptosis, and a marked decrease in the G1-phase population coupled with an increased G2/M-phase arrest in both cell lines. Further gene expression analysis demonstrated a substantial downregulation of the anti-apoptotic gene Bcl-2 and an upregulation of the pro-apoptotic genes Bax, PUMA, and BID following treatment with Cp@CS/BME NPs. Thus, this study presents a promising and innovative strategy for enhancing the therapeutic efficacy of chemotherapeutic agents using naturally derived ingredients while limiting the side effects.</p>","PeriodicalId":19894,"journal":{"name":"Pharmaceutics","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510476/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505615","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}
PharmaceuticsPub Date : 2024-09-30DOI: 10.3390/pharmaceutics16101289
Dallan McMahon, Ryan M Jones, Rohan Ramdoyal, Joey Ying Xuan Zhuang, Dallas Leavitt, Kullervo Hynynen
{"title":"Investigation of Sonication Parameters for Large-Volume Focused Ultrasound-Mediated Blood-Brain Barrier Permeability Enhancement Using a Clinical-Prototype Hemispherical Phased Array.","authors":"Dallan McMahon, Ryan M Jones, Rohan Ramdoyal, Joey Ying Xuan Zhuang, Dallas Leavitt, Kullervo Hynynen","doi":"10.3390/pharmaceutics16101289","DOIUrl":"https://doi.org/10.3390/pharmaceutics16101289","url":null,"abstract":"<p><p><b>Background/Objectives:</b> Focused ultrasound (FUS) and microbubble (MB) exposure is a promising technique for targeted drug delivery to the brain; however, refinement of protocols suitable for large-volume treatments in a clinical setting remains underexplored. <b>Methods:</b> Here, the impacts of various sonication parameters on blood-brain barrier (BBB) permeability enhancement and tissue damage were explored in rabbits using a clinical-prototype hemispherical phased array developed in-house, with real-time 3D MB cavitation imaging for exposure calibration. Initial experiments revealed that continuous manual agitation of MBs during infusion resulted in greater gadolinium (Gd) extravasation compared to gravity drip infusion. Subsequent experiments used low-dose MB infusion with continuous agitation and a low burst repetition frequency (0.2 Hz) to mimic conditions amenable to long-duration clinical treatments. <b>Results:</b> Key sonication parameters-target level (proportional to peak negative pressure), number of bursts, and burst length-significantly affected BBB permeability enhancement, with all parameters displaying a positive relationship with relative Gd contrast enhancement (<i>p</i> < 0.01). Even at high levels of BBB permeability enhancement, tissue damage was minimal, with low occurrences of hypointensities on T2*-weighted MRI. When accounting for relative Gd contrast enhancement, burst length had a significant impact on red blood cell extravasation detected in histological sections, with 1 ms bursts producing significantly greater levels compared to 10 ms bursts (<i>p</i> = 0.03), potentially due to the higher pressure levels required to generate equal levels of BBB permeability enhancement. Additionally, albumin and IgG extravasation correlated strongly with relative Gd contrast enhancement across sonication parameters, suggesting that protein extravasation can be predicted from non-invasive imaging. <b>Conclusions:</b> These findings contribute to the development of safer and more effective clinical protocols for FUS + MB exposure, potentially improving the efficacy of the approach.</p>","PeriodicalId":19894,"journal":{"name":"Pharmaceutics","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510584/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142505663","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}