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Adel Ali Youssef A, Hayder Abdelrahman M, Geweda MM, Varner C, Joshi PH, Ghonge M, Dudhipala N, Sulochana SP, Gadepalli RS, Majumdar S. Formulation and In Vitro-Ex vivo Evaluation of Cannabidiol and Cannabidiol-Valine-Hemisuccinate Loaded Lipid-Based Nanoformulations for Ocular Applications. Int J Pharm 2024; 657:124110. [PMID: 38604539 DOI: 10.1016/j.ijpharm.2024.124110] [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: 11/14/2023] [Revised: 04/06/2024] [Accepted: 04/08/2024] [Indexed: 04/13/2024]
Abstract
The goal of this investigation is to develop stable ophthalmic nanoformulations containing cannabidiol (CBD) and its analog cannabidiol-valine-hemisuccinate (CBD-VHS) for improved ocular delivery. Two nanoformulations, nanoemulsion (NE) and nanomicelles (NMC), were developed and evaluated for physicochemical characteristics, drug-excipient compatibility, sterilization, thermal analysis, surface morphology, ex-vivo transcorneal permeation, corneal deposition, and stability. The saturation solubility studies revealed that among the surfactants tested, Cremophor EL had the highest solubilizing capacity for CBD (23.3 ± 0.1 mg/mL) and CBD-VHS (11.2 ± 0.2 mg/mL). The globule size for the lead CBD formulations (NE and NMC) ranged between 205 and 270 nm while CBD-VHS-NMC formulation had a particle size of about 78 nm. The sterilized formulations, except for CBD-VHS-NMC at 40 °C, were stable for three months of storage (last time point tested). Release, in terms of CBD, in the in-vitro release/diffusion studies over 18 h, were faster from the CBD-VHS nanomicelles (38 %) compared to that from the CBD nanoemulsion (16 %) and nanomicelles (33 %). Transcorneal permeation studies revealed improvement in CBD permeability and flux with both formulations; however, a greater improvement was observed with the NMC formulation compared to the NE formulation. In conclusion, the nanoformulations prepared could serve as efficient topical ocular drug delivery platforms for CBD and its analog.
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Affiliation(s)
- Ahmed Adel Ali Youssef
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS 38677, USA; Department of Pharmaceutical Technology, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
| | - Muna Hayder Abdelrahman
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | - Mona M Geweda
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | - Corinne Varner
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | - Poorva H Joshi
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | - Mihir Ghonge
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | - Narendar Dudhipala
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | - Suresh P Sulochana
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | - Rama S Gadepalli
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | - Soumyajit Majumdar
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, MS 38677, USA; Research Institute of Pharmaceutical Sciences, University of Mississippi, University, MS 38677, USA.
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Pagano S, Valenti C, Negri P, Billi M, Di Michele A, Bruscoli S, Febo M, Coniglio M, Marinucci L. Acute and chronic cannabidiol treatment: In vitro toxicological aspects on human oral cells. Food Chem Toxicol 2024; 185:114513. [PMID: 38342230 DOI: 10.1016/j.fct.2024.114513] [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: 11/06/2023] [Revised: 02/06/2024] [Accepted: 02/08/2024] [Indexed: 02/13/2024]
Abstract
Cannabidiol is gaining increasing interest for its potential anti-inflammatory, immunomodulatory, and antineoplastic effects. The purpose of this study is to investigate the biological effects of acute and chronic CBD administration on gingival fibroblasts and oral keratinocytes. Viability, morphology, migration, apoptosis and cell cycle, and expression of related genes (p53, BCL2, p21, and BAX) and of endocannabinoid system receptors (CB1, CB2 and GPR55) with real-time PCR and DNA damage with phospho-γ-H2AX immunofluorescence detection were analyzed. Concentrations between 100 μM and 0.001 μM were used: 50 μM (toxic dose), 25 μM (viability promoter), and 1 μM (nontoxic), were selected for subsequent chronic analysis. Acute treatment reveals significant effects than chronic, in particular in fibroblasts: concentrations ≥50 μM are highly cytotoxic, with increased apoptosis and reduced migration. Cell death correlates with increased p53 and BAX, followed by arrest in G0/G1 phase, with elevated p21 levels, suggesting a time- and dose-dependent damage. An increase in H2AX phosphorylation was observed with 25 μM and 50 μM, while 1 μM was biocompatible. Keratinocytes showed less cytotoxic effect than fibroblasts. Induced cell damage was dose- and time-related, with less damage after chronic treatment. Further investigations are needed with longer time frames to evaluate CBD dose- and time-dependent effects to identify an effective therapeutic dose.
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Affiliation(s)
- Stefano Pagano
- Department of Medicine and Surgery, Faculty of Dentistry, University of Perugia, S. Andrea delle Fratte, 06156, Perugia, Italy.
| | - Chiara Valenti
- Department of Medicine and Surgery, Faculty of Dentistry, University of Perugia, S. Andrea delle Fratte, 06156, Perugia, Italy; CISAS "Giuseppe Colombo", University of Padua, Via Venezia, 15, 35131, Padua, Italy.
| | - Paolo Negri
- Department of Medicine and Surgery, Faculty of Dentistry, University of Perugia, S. Andrea delle Fratte, 06156, Perugia, Italy.
| | - Monia Billi
- Department of Medicine and Surgery, Section of General Pathology, University of Perugia, S. Andrea delle Fratte, 06156, Perugia, Italy.
| | - Alessandro Di Michele
- Department of Physics and Geology, University of Perugia, Via Pascoli, 06123, Perugia, Italy.
| | - Stefano Bruscoli
- Department of Medicine and Surgery, Section of Pharmacology, University of Perugia, S. Andrea delle Fratte, 06156, Perugia, Italy.
| | - Marta Febo
- Department of Medicine and Surgery, Section of Pharmacology, University of Perugia, S. Andrea delle Fratte, 06156, Perugia, Italy.
| | - Maddalena Coniglio
- Department of Medicine and Surgery, Faculty of Dentistry, University of Perugia, S. Andrea delle Fratte, 06156, Perugia, Italy.
| | - Lorella Marinucci
- Department of Medicine and Surgery, Section of Biosciences and Medical Embryology, University of Perugia, S. Andrea delle Fratte, 06156, Perugia, Italy.
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Tsiogkas SG, Apostolopoulou K, Papagianni ED, Mavropoulos A, Dardiotis E, Zafiriou E, Bogdanos DP. Cannabidiol Mediates In Vitro Attenuation of Proinflammatory Cytokine Responses in Psoriatic Disease. Cannabis Cannabinoid Res 2024; 9:134-146. [PMID: 38181167 DOI: 10.1089/can.2023.0237] [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] [Indexed: 01/07/2024] Open
Abstract
Background: Cannabidiol (CBD), a substance that belongs to the phytocannabinoids, appears to exert antioxidant, neuroprotective, antipsychotic, anticonvulsant, and anticancer properties. Recent evidence supports the immunoregulatory effect of CBD on autoimmune and/or inflammatory disease. Psoriasis is a chronic skin disease. The main immune cell population involved in the pathogenesis of the disease is the interleukin- (IL-) 17-producing T helper (Th) 17 subset. Other subpopulations, such as interferon-γ (IFNγ) -producing Th1 and T cytotoxic (Tc) 1, IL-17-producing Tc17, as well as natural killer (NK) and natural killer T cells (NKT) have been implicated in psoriasis development. Purpose: The aim of the present study was to evaluate the in vitro effect of CBD on the aforementioned subpopulations isolated from patients with psoriasis using flow cytometry. Methods: Cells were stimulated in the presence or absence of CBD, stained and examined using surface and intracellular markers. Results: CBD decreased IL-17 production within the CD3, Th, and NKT cell compartments and IFNγ production within the CD3 compartment in cells isolated from patients with psoriasis. Interestingly, CBD supplementation did not inhibit production of proinflammatory cytokines in cells isolated from healthy individuals. On the contrary, IFNγ-producing Th, Tc, and NK cells increased after CBD supplementation. Conclusion: CBD provides anti-inflammatory effects in T cells isolated from patients with psoriasis. Our results could be the impetus for future investigations regarding the immunomodulatory properties of CBD and its utilization for development of CBD-containing antipsoriatic agents.
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Affiliation(s)
- Sotirios G Tsiogkas
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Konstantina Apostolopoulou
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Evangelia D Papagianni
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Athanasios Mavropoulos
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Efthimios Dardiotis
- Department of Neurology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Efterpi Zafiriou
- Department of Dermatology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Dimitrios P Bogdanos
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
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Montreekachon P, Chaichana N, Makeudom A, Kerdvongbundit V, Krisanaprakornkit W, Krisanaprakornkit S. Proliferative effect of cannabidiol in human gingival fibroblasts via the mitogen-activated extracellular signal-regulated kinase (MEK) 1/2. J Periodontal Res 2023; 58:1223-1234. [PMID: 37641169 DOI: 10.1111/jre.13178] [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: 09/29/2022] [Revised: 08/12/2023] [Accepted: 08/17/2023] [Indexed: 08/31/2023]
Abstract
BACKGROUND AND OBJECTIVES Cannabidiol exerts its anti-inflammatory and anti-oxidant activities in various human cells. However, its proliferative effect has not been extrapolated to human gingival fibroblasts (HGFs). This study aimed to determine the proliferative and promigratory effects of cannabidiol in HGFs and to elucidate the signaling mechanism(s). MATERIALS AND METHODS HGFs, characterized by their CD73, CD90, and CD105 expressions by flow cytometry, were treated with cannabidiol at 0.01-30 μM. The cytotoxicity was determined by the MTT assay, while the proliferative effect was examined by the BrdU assay, immunoblot and immunofluorescence for cyclin D1 and Ki-67 expressions, respectively, and cell cycle analysis. The promigratory effect of cannabidiol was investigated by a wound healing assay. Phosphorylation of the p38 MAPK, JNK, and ERK upon treatment with cannabidiol was explored, and their involvement in cell proliferation and cyclin D1 and Ki-67 expressions was studied using pharmacological inhibitors. RESULTS No toxicity was found in HGFs treated with any doses of cannabidiol up to 30 μM. The mean percentage of cell proliferation was significantly enhanced by treatment with cannabidiol at 3 or 10 μM (p < .001), consistent with upregulated expressions of cyclin D1 and Ki-67 and increased percentages of HGFs in the S and G2/M phases. Moreover, treatment with cannabidiol significantly induced cell migration (p < .05). The p38 MAPK and ERK1/2 were significantly activated by cannabidiol (p < .05), but only pretreatment with UO126, a MEK1/2 inhibitor, significantly inhibited cell proliferation and cyclin D1 and Ki-67 expressions (p < .05). CONCLUSION Treatment with cannabidiol at non-toxic doses promotes HGFs' proliferation and migration.
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Affiliation(s)
- Pattanin Montreekachon
- Department of Restorative Dentistry and Periodontology, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Nopphanai Chaichana
- Department of Restorative Dentistry and Periodontology, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Anupong Makeudom
- School of Dentistry, Mae Fah Luang University, Chiang Rai, Thailand
| | | | | | - Suttichai Krisanaprakornkit
- Department of Oral Biology and Diagnostic Sciences, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Oral and Maxillofacial Biology, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
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Paiva Barbosa V, Bastos Silveira B, Amorim Dos Santos J, Monteiro MM, Coletta RD, De Luca Canto G, Stefani CM, Guerra ENS. Critical appraisal tools used in systematic reviews of in vitro cell culture studies: A methodological study. Res Synth Methods 2023; 14:776-793. [PMID: 37464457 DOI: 10.1002/jrsm.1657] [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: 12/21/2022] [Revised: 06/21/2023] [Accepted: 07/01/2023] [Indexed: 07/20/2023]
Abstract
Systematic reviews (SRs) of preclinical studies are marked with poor methodological quality. In vitro studies lack assessment tools to improve the quality of preclinical research. This methodological study aimed to identify, collect, and analyze SRs based on cell culture studies to highlight the current appraisal tools utilized to support the development of a validated critical appraisal tool for cell culture in vitro research. SRs, scoping reviews, and meta-analyses that included cell culture studies and used any type of critical appraisal tool were included. Electronic search, study selection, data collection and methodological quality (MQ) assessment tool were realized. Further, statistical analyses regarding possible associations and correlations between MQ and collected data were performed. After the screening process, 82 studies remained for subsequent analysis. A total of 32 different appraisal tools were identified. Approximately 60% of studies adopted pre-structured tools not designed for cell culture studies. The most frequent instruments were SYRCLE (n = 14), OHAT (n = 9), Cochrane Collaboration's tool (n = 7), GRADE (n = 6), CONSORT (n = 5), and ToxRTool (n = 5). The studies were divided into subgroups to perform statistical analyses. A significant association (OR = 5.00, 95% CI = 1.54-16.20, p = 0.008) was found between low MQ and chronic degenerative disorders as topic of SR. Several challenges in collecting information from the included studies led to some modifications related to the previously registered protocol. These results may serve as a basis for further development of a critical appraisal tool for cell culture studies capable of capturing all the essential factors related to preclinical research, therefore enhancing the practice of evidence-based.
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Affiliation(s)
- Victor Paiva Barbosa
- University of Brasília, Laboratory of Oral Histopathology, Department of Dentistry, Faculty of Health Sciences, University of Brasília, Brasília, Brazil
| | - Bruna Bastos Silveira
- University of Brasília, Laboratory of Oral Histopathology, Department of Dentistry, Faculty of Health Sciences, University of Brasília, Brasília, Brazil
| | - Juliana Amorim Dos Santos
- University of Brasília, Laboratory of Oral Histopathology, Department of Dentistry, Faculty of Health Sciences, University of Brasília, Brasília, Brazil
| | - Mylene Martins Monteiro
- University of Brasília, Laboratory of Oral Histopathology, Department of Dentistry, Faculty of Health Sciences, University of Brasília, Brasília, Brazil
| | - Ricardo D Coletta
- University of Campinas, Department of Oral Diagnosis and Graduate Program in Oral Biology, School of Dentistry, University of Campinas, Piracicaba, Brazil
| | - Graziela De Luca Canto
- Federal University of Santa Catarina, Department of Dentistry, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Cristine Miron Stefani
- University of Brasilia, Department of Dentistry, School of Health Sciences, University of Brasilia, Brasília, Brazil
| | - Eliete Neves Silva Guerra
- University of Brasília, Laboratory of Oral Histopathology, Department of Dentistry, Faculty of Health Sciences, University of Brasília, Brasília, Brazil
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Kent-Dennis C, Klotz JL. Immunomodulation by cannabidiol in bovine primary ruminal epithelial cells. BMC Vet Res 2023; 19:208. [PMID: 37845710 PMCID: PMC10577946 DOI: 10.1186/s12917-023-03756-4] [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: 05/25/2023] [Accepted: 09/27/2023] [Indexed: 10/18/2023] Open
Abstract
BACKGROUND Ruminant livestock experience a number of challenges, including high concentrate diets, weaning and transport, which can increase their risk of disorders such as ruminal acidosis, and the associated inflammation of the ruminal epithelium. Cannabidiol (CBD), a phytochemical from hemp (Cannabis sativa), is a promising target as a therapy for gastrointestinal inflammation, and may be extremely valuable as either a treatment or prophylactic. However, the effects of CBD in the the ruminant gastrointestinal tract have not been explored, in part due to the restrictions on feeding hemp to livestock. Therefore, the objective of this study was to investigate the immunomodulatory properties of CBD using a model of inflammation in primary ruminal epithelial cells (REC). In addition, CBD dose was evaluated for possible cytotoxic effects. RESULTS Negative effects on cell viability were not observed when REC were exposed to 10 μM CBD. However, when the dose was increased to 50 μM for 24 h, there was a significant cytotoxic effect. When 10 μM CBD was added to culture media as treatment for inflammation induced with lipopolysaccharide (LPS), expression of genes encoding for pro-inflammatory cytokine IL1B was less compared to LPS exposure alone, and CBD resulted in a down-regulation of IL6. As a pre-treatment, prior to LPS exposure, REC had decreased expression of IL6 and CXCL10 while CBD was present in the media, but not when it was removed prior to addition of LPS. CONCLUSIONS Results suggest that CBD may reduce cytokine transcription both during LPS-induced inflammation and when used preventatively, although these effects were dependent on its continued presence in the culture media. Overall, these experiments provide evidence of an immunomodulatory effect by CBD during a pro-inflammatory response in primary REC in culture.
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Affiliation(s)
- C Kent-Dennis
- USDA-ARS Forage-Animal Production Research Unit, University of Kentucky Campus, 1100 S. Limestone Rd. N222J Ag. Science North, Lexington, KY, 40546, USA
| | - James L Klotz
- USDA-ARS Forage-Animal Production Research Unit, University of Kentucky Campus, 1100 S. Limestone Rd. N222J Ag. Science North, Lexington, KY, 40546, USA.
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Aguzzi C, Perinelli DR, Cespi M, Zeppa L, Mazzara E, Maggi F, Petrelli R, Bonacucina G, Nabissi M. Encapsulation of Hemp ( Cannabis sativa L.) Essential Oils into Nanoemulsions for Potential Therapeutic Applications: Assessment of Cytotoxicological Profiles. Molecules 2023; 28:6479. [PMID: 37764255 PMCID: PMC10537312 DOI: 10.3390/molecules28186479] [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: 07/25/2023] [Revised: 08/28/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
Industrial hemp (Cannabis sativa L.), due to its bioactive compounds (terpenes and cannabinoids), has gained increasing interest in different fields, including for medical purposes. The evaluation of the safety profile of hemp essential oil (EO) and its encapsulated form (nanoemulsion, NE) is a relevant aspect for potential therapeutic applications. This study aimed to evaluate the toxicological effect of hemp EOs and NEs from cultivars Carmagnola CS and Uso 31 on three cell lines selected as models for topical and inhalant administration, by evaluating the cytotoxicity and the cytokine expression profiles. Results show that EOs and their NEs have comparable cytotoxicity, if considering the quantity of EO present in the NE. Moreover, cells treated with EOs and NEs showed, in most of the cases, lower levels of proinflammatory cytokines compared to Etoposide used as a positive control, and the basal level of inflammatory cytokines was not altered, suggesting a safety profile of hemp EOs and their NEs to support their use for medical applications.
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Affiliation(s)
- Cristina Aguzzi
- Department of Experimental Medicine, School of Pharmacy, University of Camerino, Via Madonna delle Carceri 9, 62032 Camerino, Italy; (C.A.); (L.Z.)
| | - Diego Romano Perinelli
- Chemistry Interdisciplinary Project (ChIP) Research Center, School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (D.R.P.); (M.C.); (E.M.); (F.M.); (R.P.)
| | - Marco Cespi
- Chemistry Interdisciplinary Project (ChIP) Research Center, School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (D.R.P.); (M.C.); (E.M.); (F.M.); (R.P.)
| | - Laura Zeppa
- Department of Experimental Medicine, School of Pharmacy, University of Camerino, Via Madonna delle Carceri 9, 62032 Camerino, Italy; (C.A.); (L.Z.)
| | - Eugenia Mazzara
- Chemistry Interdisciplinary Project (ChIP) Research Center, School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (D.R.P.); (M.C.); (E.M.); (F.M.); (R.P.)
| | - Filippo Maggi
- Chemistry Interdisciplinary Project (ChIP) Research Center, School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (D.R.P.); (M.C.); (E.M.); (F.M.); (R.P.)
| | - Riccardo Petrelli
- Chemistry Interdisciplinary Project (ChIP) Research Center, School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (D.R.P.); (M.C.); (E.M.); (F.M.); (R.P.)
| | - Giulia Bonacucina
- Chemistry Interdisciplinary Project (ChIP) Research Center, School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy; (D.R.P.); (M.C.); (E.M.); (F.M.); (R.P.)
| | - Massimo Nabissi
- Department of Experimental Medicine, School of Pharmacy, University of Camerino, Via Madonna delle Carceri 9, 62032 Camerino, Italy; (C.A.); (L.Z.)
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Eydelman I, Zehavi N, Feinshtein V, Kumar D, Ben-Shabat S, Sintov AC. Cannabidiol-Loaded Nanoparticles Based on Crosslinked Starch: Anti-Inflammatory Activity and Improved Nose-to-Brain Delivery. Pharmaceutics 2023; 15:1803. [PMID: 37513990 PMCID: PMC10384644 DOI: 10.3390/pharmaceutics15071803] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/16/2023] [Accepted: 06/20/2023] [Indexed: 07/30/2023] Open
Abstract
Cannabidiol (CBD) has previously been shown to inhibit inflammatory cytokine production in both in vitro and in vivo studies of neurodegenerative diseases. To date, the CBD treatment of these diseases by quantitative targeting directly to the brain is one of the greatest challenges. In this paper, we present a new particulate system capable of delivering CBD into the brain via the intranasal route. Intranasal administration of CBD-loaded starch nanoparticles resulted in higher levels of cannabidiol in the brain compared to an identically administered cannabidiol solution. The production and the characterization of starch-based nanoparticles was reported, as well as the evaluation of their penetration and anti-inflammatory activity in cells. Cannabidiol-loaded starch nanoparticles were prepared by crosslinking with divanillin, using the nanoprecipitation method. Evaluation of the anti-inflammatory activity in vitro was performed using the BV2 microglia cell line. The starch nanoparticles appeared under electron microscopy in clusters sized approximately 200 nm in diameter. In cultures of lipopolysaccharide-induced inflamed BV2 cells, the cannabidiol-loaded starch nanoparticles demonstrated low toxicity while effectively reducing nitric oxide production and IL-6 levels. The anti-inflammatory effect was comparable to that of a glucocorticoid. Starch-based nanoparticle formulations combined with intranasal administration may provide a suitable platform for efficacious cannabidiol delivery and activity in the central nervous system.
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Affiliation(s)
- Ilya Eydelman
- Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev, Be'er Sheva 8410501, Israel
| | - Na'ama Zehavi
- Laboratory for Biopharmaceutics, E.D. Bergmann Campus, Ben-Gurion University of the Negev, Be'er Sheva 8410501, Israel
| | - Valeria Feinshtein
- Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev, Be'er Sheva 8410501, Israel
| | - Dinesh Kumar
- Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev, Be'er Sheva 8410501, Israel
- Department of Pharmaceutical Sciences, Central University of Haryana, Mahendragarh 123031, Haryana, India
| | - Shimon Ben-Shabat
- Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev, Be'er Sheva 8410501, Israel
| | - Amnon C Sintov
- Laboratory for Biopharmaceutics, E.D. Bergmann Campus, Ben-Gurion University of the Negev, Be'er Sheva 8410501, Israel
- Department of Biomedical Engineering, Ben Gurion University of the Negev, Be'er Sheva 8410501, Israel
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9
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O'Sullivan SE, Jensen SS, Nikolajsen GN, Bruun HZ, Bhuller R, Hoeng J. The therapeutic potential of purified cannabidiol. J Cannabis Res 2023; 5:21. [PMID: 37312194 DOI: 10.1186/s42238-023-00186-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 04/30/2023] [Indexed: 06/15/2023] Open
Abstract
The use of cannabidiol (CBD) for therapeutic purposes is receiving considerable attention, with speculation that CBD can be useful in a wide range of conditions. Only one product, a purified form of plant-derived CBD in solution (Epidiolex), is approved for the treatment of seizures in patients with Lennox-Gastaut syndrome, Dravet syndrome, or tuberous sclerosis complex. Appraisal of the therapeutic evidence base for CBD is complicated by the fact that CBD products sometimes have additional phytochemicals (like tetrahydrocannabinol (THC)) present, which can make the identification of the active pharmaceutical ingredient (API) in positive studies difficult. The aim of the present review is to critically review clinical studies using purified CBD products only, in order to establish the upcoming indications for which purified CBD might be beneficial. The areas in which there is the most clinical evidence to support the use of CBD are in the treatment of anxiety (positive data in 7 uncontrolled studies and 17 randomised controlled trials (RCTs)), psychosis and schizophrenia (positive data in 1 uncontrolled study and 8 RCTs), PTSD (positive data in 2 uncontrolled studies and 4 RCTs) and substance abuse (positive data in 2 uncontrolled studies and 3 RCTs). Seven uncontrolled studies support the use of CBD to improve sleep quality, but this has only been verified in one small RCT. Limited evidence supports the use of CBD for the treatment of Parkinson's (3 positive uncontrolled studies and 2 positive RCTs), autism (3 positive RCTs), smoking cessation (2 positive RCTs), graft-versus-host disease and intestinal permeability (1 positive RCT each). Current RCT evidence does not support the use of purified oral CBD in pain (at least as an acute analgesic) or for the treatment of COVID symptoms, cancer, Huntington's or type 2 diabetes. In conclusion, published clinical evidence does support the use of purified CBD in multiple indications beyond epilepsy. However, the evidence base is limited by the number of trials only investigating the acute effects of CBD, testing CBD in healthy volunteers, or in very small patient numbers. Large confirmatory phase 3 trials are required in all indications.
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Razlog R, Kruger CA, Abrahamse H. Cytotoxic Effects of Combinative ZnPcS 4 Photosensitizer Photodynamic Therapy (PDT) and Cannabidiol (CBD) on a Cervical Cancer Cell Line. Int J Mol Sci 2023; 24:ijms24076151. [PMID: 37047123 PMCID: PMC10094677 DOI: 10.3390/ijms24076151] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 03/06/2023] [Accepted: 03/22/2023] [Indexed: 04/14/2023] Open
Abstract
The most prevalent type of gynecological malignancy globally is cervical cancer (CC). Complicated by tumor resistance and metastasis, it remains the leading cause of cancer deaths in women in South Africa. Early CC is managed by hysterectomy, chemotherapy, radiation, and more recently, immunotherapy. Although these treatments provide clinical benefits, many patients experience adverse effects and secondary CC spread. To minimize this, novel and innovative treatment methods need to be investigated. Photodynamic therapy (PDT) is an advantageous treatment modality that is non-invasive, with limited side effects. The Cannabis sativa L. plant isolate, cannabidiol (CBD), has anti-cancer effects, which inhibit tumor growth and spread. This study investigated the cytotoxic combinative effect of PDT and CBD on CC HeLa cells. The effects were assessed by exposing in vitro HeLa CC-cultured cells to varying doses of ZnPcS4 photosensitizer (PS) PDT and CBD, with a fluency of 10 J/cm2 and 673 nm irradiation. HeLa CC cells, which received the predetermined lowest dose concentrations (ICD50) of 0.125 µM ZnPcS4 PS plus 0.5 µM CBD to yield 50% cytotoxicity post-laser irradiation, reported highly significant and advantageous forms of cell death. Flow cytometry cell death pathway quantitative analysis showed that only 13% of HeLa cells were found to be viable, 7% were in early apoptosis and 64% were in late favorable forms of apoptotic cell death, with a minor 16% of necrosis post-PDT. Findings suggest that this combined treatment approach can possibly induce primary cellular destruction, as well as limit CC metastatic spread, and so warrants further investigation.
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Affiliation(s)
- Radmila Razlog
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Doornfontein, P.O. Box 17011, Johannesburg 2028, South Africa
| | - Cherie Ann Kruger
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Doornfontein, P.O. Box 17011, Johannesburg 2028, South Africa
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Doornfontein, P.O. Box 17011, Johannesburg 2028, South Africa
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Nitrogen-Containing Bisphosphonates Downregulate Cathepsin K and Upregulate Annexin V in Osteoclasts Cultured In Vitro. Int J Dent 2023; 2023:2960941. [PMID: 36866025 PMCID: PMC9974278 DOI: 10.1155/2023/2960941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 01/12/2023] [Accepted: 01/19/2023] [Indexed: 02/23/2023] Open
Abstract
Introduction Bisphosphonates are widely used in the treatment of osteoporosis; however, they are associated with the serious adverse event of bisphosphonate-related osteonecrosis of the jaw (BRONJ). Aim The aim of this study is to assess the effects of nitrogen-containing bisphosphonates (N-PHs) on the synthesis of IL-1β, TNF-α, sRANKL, cathepsin K, and annexin V in bone cells cultured in vitro. Materials and Methods Osteoblasts and bone marrow-derived osteoclasts were cultured in vitro, subjected to treatment with alendronate, risedronate, or ibandronate at a concentration of 10-5 M for 0 to 96 h and then assayed for IL-1β, sRANKL, and TNF-α production by ELISA. Cathepsin K and Annexin V-FITC staining in osteoclasts were assessed by flow cytometry. Results There was significant downregulation of IL-1β, sRANKL, and TNF-α in experimental osteoblasts compared to control cells, and there was upregulation of IL-1β and downregulation of RANKL and TNF-α in experimental osteoclasts. Furthermore, in osteoclasts, cathepsin K expression was downregulated at 48-72 h with alendronate treatment, while risedronate treatment resulted in upregulated annexin V expression at 48 h compared to the control treatment. Conclusion Bisphosphonates added to bone cells inhibited osteoclastogenesis, which led to the downregulation of cathepsin K and induction of apoptosis in osteoclasts; these changes limited the capacity of bone remodelling and healing that may contribute to BRONJ induced by surgical dental procedures.
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Effect of Different Mixing Methods on Physicochemical Properties of Mineral Trioxide Aggregate: A Systematic Review. Int J Dent 2023; 2023:5226095. [PMID: 36845631 PMCID: PMC9949954 DOI: 10.1155/2023/5226095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 01/01/2023] [Accepted: 01/27/2023] [Indexed: 02/18/2023] Open
Abstract
Background Mineral trioxide aggregate (MTA) is a commonly used endodontic biomaterial. The physicochemical properties of MTA have a crucial role in designating clinical outcome, and different factors can affect these properties. Various methods have been used for mixing MTA, including manual, mechanical, and ultrasonic. The aim of this systematic review was to evaluate the effect of different mixing methods on the physicochemical properties of MTA. Materials and Methods Electronic databases including PubMed, Embase, Web of Science, and Scopus were searched up to May 2022. In order to cover gray literature, the ProQuest and Google Scholar databases were also searched to detect theses and conference proceedings. For quality assessment of the included studies, we used a modified version of the Cochrane risk of bias tool for randomized controlled trials (RCTs). Experimental studies which had assessed at least one property of MTA and compared at least two different mixing methods of MTA were included in this study. All animal studies, reviews, case reports, and case series were excluded. Results Fourteen studies were included. The results showed that the ultrasonic mixing method significantly improved some MTA characteristics, including microhardness, flowability, solubility, setting time, and porosity. However, the mechanical mixing method improved other properties including flowability, solubility, push-out bond strength, and hydration. The manual mixing method showed inferior results compared to other mixing methods in terms of microhardness, flowability, solubility, setting time, push-out bond strength, porosity, and hydration. Different mixing methods had a similar effect on compressive strength, sealing ability, pH and calcium ion release, volume change, film thickness, and flexural strength of MTA. Conclusion Mechanical and ultrasonic mixing methods are superior to the manual mixing method in terms of improving physicochemical properties of MTA. No report of selection bias and varieties in methodologies were limitations of evidence.
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Chang Y, Chung MK, Park JH, Song TJ. Association of Oral Health with Risk of Rheumatoid Arthritis: A Nationwide Cohort Study. J Pers Med 2023; 13:jpm13020340. [PMID: 36836574 PMCID: PMC9960411 DOI: 10.3390/jpm13020340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/09/2023] [Accepted: 02/09/2023] [Indexed: 02/18/2023] Open
Abstract
Periodontitis and rheumatoid arthritis (RA) are inflammatory diseases that share many similarities. We aimed to investigate the associations of periodontitis and oral hygiene status and behaviors with RA in a nationwide general population cohort. Participants from the National Health Screening cohort database of Korea who underwent oral health screening by dentists between 2003 and 2004 were included. The occurrence of RA was analyzed according to the presence of periodontitis, oral health examination findings, and behaviors. Overall, 2,239,586 participants were included. During a median of 16.7 years, RA occurred in 27,029 (1.2%) participants. The risk for incident RA was higher when participants had periodontitis (hazard ratio (HR) 1.2, 95% confidence interval (CI), 1.08-1.24) and an increased number of missing teeth (HR 1.5, 95% CI, 1.38-1.69). In contrast, better oral hygiene behaviors, such as a higher frequency of daily tooth brushing (HR 0.76, 95% CI 0.73-0.79, p for trend <0.001) and a recent history of dental scaling (HR 0.96, 95% CI 0.94-0.99), were associated with a lower occurrence of RA. Periodontitis and increased missing teeth were associated with an increased risk of RA. Maintaining good oral hygiene through frequent tooth brushing and regular dental scaling may reduce the risk of RA occurrence.
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Affiliation(s)
- Yoonkyung Chang
- Department of Neurology, Mokdong Hospital, College of Medicine, Ewha Womans University, Seoul 07985, Republic of Korea
| | - Min Kyung Chung
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul 07804, Republic of Korea
| | - Jung-Hyun Park
- Department of Oral and Maxillofacial Surgery, Mokdong Hospital, College of Medicine, Ewha Womans University, Seoul 07985, Republic of Korea
| | - Tae-Jin Song
- Department of Neurology, Seoul Hospital, College of Medicine, Ewha Womans University, Seoul 07804, Republic of Korea
- Correspondence: ; Tel.: +82-2-6986-1672
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Three-dimensional microscopic comparison of wear behavior between immature and mature enamel: an in vitro study. BMC Oral Health 2023; 23:40. [PMID: 36694188 PMCID: PMC9875398 DOI: 10.1186/s12903-023-02751-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 01/16/2023] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Dental enamel, the hardest outermost layer of a human tooth, is subjected to occlusal forces throughout life during different oral function as talking, mastication etc. Due to this continuous stress, wear causes the loss of this protective shell. This study aimed to detect microscopic differences in enamel's wear behavior among different age groups of adolescents and adults. AIMS AND METHODS Enamel specimens from immature open-apex and mature closed-apex premolars were subjected to simulated occlusal wear of impact and sliding wear test ISWT. Upper and lower enamel specimens were made to come in contact under controlled conditions. The enamel specimens' surfaces were examined using different microscopes. The upper and lower specimens were subjected to the following tests; pre-test light microscopy examination, enamel specimens' preparation for ISWT, scanning laser confocal microscopy of upper specimens, three-dimensional (3D) colored laser microscope and a Profilometer imaging of the lower specimens. RESULTS Wear characteristics, including wear areas, crater depths, and relation to enamel microstructures, differed among different age groups. Immature enamel from the upper specimens was more resistant to chipping than mature enamel with no statistically significant wear area difference. The immature enamel craters from the lower specimens were wider and deeper than those in the mature enamel; the wear areas in the mature enamel in the lower specimens were almost flat and smooth. The wear areas in the immature enamel in the lower specimens were significantly larger than those in the mature enamel. CONCLUSIONS Wear characteristics of the immature enamel are different from those of the mature enamel. Hence, it should be repaired using restorative materials with compatible wear properties.
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Schalli M, Kogler B, Miorini T, Gehrer M, Reinthaler FF. High-Speed Dental Instruments: An Investigation of Protein-Contaminated Dental Handpieces with the Bicinchoninic Acid Assay in Dental Offices in Styria, Austria. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:1670. [PMID: 36767036 PMCID: PMC9914004 DOI: 10.3390/ijerph20031670] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/09/2023] [Accepted: 01/15/2023] [Indexed: 06/18/2023]
Abstract
Due to permanent contact with bodily secretions such as blood and saliva, the dental workplace poses a high risk of infection for patients as well as for personnel. High-speed dental instruments are still considered one of the major hygienic risks, as the high-speed rotation of the attachments leads to the retraction of infectious material from patients' oral cavities. The aim of this study was to investigate the extent to which dental handpieces are contaminated after use. Spray-water samples were taken from different handpieces used in seven dental offices and protein concentrations were measured photometrically. In the first part of the study, samples were collected from each handpiece before and after the treatment of the patients. Additionally, the changes in protein concentration after consecutive treatments in which the same high-speed dental instrument was used were investigated. The results demonstrated measurable protein concentrations in 91.2% of a total of 398 samples, and 96.4% of the spray-water samples taken after treatment showed a discrepancy from the initial measured protein concentration. In 68.4% an increase in protein concentration was observed, whereas in 27.9% a decrease was measured. In conclusion, the internal contamination of high-speed dental instruments frequently occurs in daily usage and consequently may lead to the transmission of infectious agents by flushing the contaminated water out of the spray water tubes. Moreover, it must be pointed out that internal cleansing of handpieces is insufficient and that a final mechanical disinfection is indispensable.
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Affiliation(s)
- Michael Schalli
- Department for Water-Hygiene and Micro-Ecology, D&R Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, 8010 Graz, Austria
| | - Birgit Kogler
- Department for Water-Hygiene and Micro-Ecology, D&R Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, 8010 Graz, Austria
| | | | - Michael Gehrer
- Styrian Hospital Corporation KAGes, Hospital Leoben, 8700 Leoben, Austria
| | - Franz F. Reinthaler
- Department for Water-Hygiene and Micro-Ecology, D&R Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, 8010 Graz, Austria
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Salah R, Abdulbaqi HR. Short-Term (4 Day) Effects of Oral Rinsing with Miswak and Green Tea on Gingival Crevicular Fluid Flow and IL-1β Levels: A Pilot Study. Healthcare (Basel) 2023; 11:healthcare11020226. [PMID: 36673594 PMCID: PMC9859132 DOI: 10.3390/healthcare11020226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/07/2023] [Accepted: 01/09/2023] [Indexed: 01/13/2023] Open
Abstract
Despite the antiplaque effect of mouth-rinsing with a combination composed of miswak (Salvadora persica L.) and green tea (Camellia sinensis var. assamica) extracts, no data are available regarding its effect on gingival tissue at the molecular level. This pilot study aimed to assess the effect of oral rinsing with this combination on gingival crevicular fluid (GCF) flow and IL-1β levels. Ten subjects rinsed with either the combination, 0.12% chlorhexidine gluconate (CHX) or distilled water without toothbrushing for 4 days after receiving baseline polishing. GCF IL-1β concentration, influx, resting volume and plaque quantity were measured at baseline and after 4 days for each intervention. No significant differences in GCF flow or resting volume were detected after rinsing with the different mouthwashes. A significant increase in GCF IL-1β concentration was evident only after rinsing with distilled water. Rinsing with combination induced a significant reduction in GCF influx (-0.086 ± 0.222) compared to CHX (0.088 ± 0.247) and distilled water (0.075 ± 0.201). Less plaque was detected after rinsing with combination and CHX. Short-term oral rinsing with this combination could potentially induce no significant changes in GCF flow and IL-1β concentration, and might retard inflammation. Thus, it might be considered in the production of natural oral healthcare products.
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Mathirat A, Dalavi PA, Prabhu A, G.V. YD, Anil S, Senthilkumar K, Seong GH, Sargod SS, Bhat SS, Venkatesan J. Remineralizing Potential of Natural Nano-Hydroxyapatite Obtained from Epinephelus chlorostigma in Artificially Induced Early Enamel Lesion: An In Vitro Study. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12223993. [PMID: 36432279 PMCID: PMC9693638 DOI: 10.3390/nano12223993] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/01/2022] [Accepted: 11/07/2022] [Indexed: 06/12/2023]
Abstract
Dental caries is a common problem in adolescents, leading to permanent loss of teeth or cavitation. Caries is a continuous process wherein demineralization and remineralization occur regularly. Hydroxyapatite (HA) is one of the most biocompatible and bioactive materials, as it closely resembles the mineral composition of teeth. The present study deals with isolating hydroxyapatite from fish bone (Epinephelus chlorostigma) by alkaline hydrolysis and thermal calcination. The isolated nano HA was characterized using FT-IR, XRD, TGA, FE-SEM-EDX, and HR-TEM analysis. The nano HA isolated by alkaline hydrolysis is nontoxic, and the cells are viable. The isolated HA enhances the proliferation of L929 cells. The remineralization potential of the extracted nano HA was evaluated in healthy premolars by DIAGNOdent/laser fluorescence quantification, surface microhardness test, and SEM-EDX analysis. Surface morphological observations in SEM and EDX analyses show that thermally calcined HA and alkali-treated HA can induce mineralization and deposit minerals. Therefore, HA obtained from Epinephelus chlorostigma could be a potential biomaterial for treating early caries.
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Affiliation(s)
- Ashwathi Mathirat
- Department of Pediatric and Preventive Dentistry, Yenepoya Dental College, Yenepoya University, Mangalore 575018, Karnataka, India
| | - Pandurang Appana Dalavi
- Biomaterials Research Laboratory, Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore 575018, Karnataka, India
| | - Ashwini Prabhu
- Biomaterials Research Laboratory, Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore 575018, Karnataka, India
| | - Yashaswini Devi G.V.
- Biomaterials Research Laboratory, Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore 575018, Karnataka, India
| | - Sukumaran Anil
- Department of Dentistry, Oral Health Institute, Hamad Medical Corporation, Doha 3050, Qatar
- College of Dental Medicine, Qatar University, Doha 2713, Qatar
| | - Kalimuthu Senthilkumar
- Central Research Laboratory, Swamy Vivekananda Medical College Hospital and Research Institute, Namakkal 637205, Tamilnadu, India
| | - Gi Hun Seong
- Department of Bionano Engineering, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 426-791, Korea
| | - Sharan S. Sargod
- Department of Pediatric and Preventive Dentistry, Yenepoya Dental College, Yenepoya University, Mangalore 575018, Karnataka, India
| | - Sham S. Bhat
- Department of Pediatric and Preventive Dentistry, Yenepoya Dental College, Yenepoya University, Mangalore 575018, Karnataka, India
| | - Jayachandran Venkatesan
- Biomaterials Research Laboratory, Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore 575018, Karnataka, India
- Department of Bionano Engineering, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 426-791, Korea
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Gheasuddin Y, Galea GL. Cannabidiol impairs neural tube closure in mouse whole embryo culture. Birth Defects Res 2022; 114:1186-1193. [PMID: 35416425 PMCID: PMC9790336 DOI: 10.1002/bdr2.2013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/24/2022] [Accepted: 03/30/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND Cannabidiol (CBD) is a nonpsychoactive constituent of cannabis widely available as a dietary supplement. Previous reports that it impairs the retinoid, sonic hedgehog, and folate metabolism pathways raise concern that it may impair closure of the embryonic neural tube (NT), producing NT defects including spina bifida and exencephaly. METHODS We undertook teratogenicity testing of CBD in mouse whole embryo culture. RESULTS At concentrations that do not diminish embryo viability, growth, or axial rotation, CBD dose-dependently impairs cranial NT closure, increasing the proportion of embryos that develop exencephaly. It concomitantly diminishes closure of the spinal NT, the posterior neuropore (PNP), producing longer neuropores at the end of culture which is a hallmark of spina bifida risk. Exposure to CBD does not disrupt the formation of long F-actin cables in surface ectoderm cells flanking the PNP or folding of the neuroepithelium at predictable hinge points. At the cellular level, CBD exposure does not alter proliferation or apoptosis of the spinal neuroepithelium. DISCUSSION Thus, CBD acts selectively as a neuroteratogen predisposing to spina bifida and exencephaly in mouse whole embryo culture at exposure levels not associated with overt toxicity. Large-scale testing of CBD's effects on NT closure, particularly in at-risk groups, is warranted to inform its marketing to women of childbearing age.
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Affiliation(s)
- Yosuf Gheasuddin
- Developmental Biology and CancerUCL GOS Institute of Child HealthLondonUK
| | - Gabriel L. Galea
- Developmental Biology and CancerUCL GOS Institute of Child HealthLondonUK
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Lowin T, Laaser SA, Kok C, Bruneau E, Pongratz G. Cannabidiol: Influence on B Cells, Peripheral Blood Mononuclear Cells, and Peripheral Blood Mononuclear Cell/Rheumatoid Arthritis Synovial Fibroblast Cocultures. Cannabis Cannabinoid Res 2022; 8:321-334. [PMID: 35920857 DOI: 10.1089/can.2021.0241] [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: 11/13/2022] Open
Abstract
Background: Cannabidiol (CBD), one major nonintoxicating phytocannabinoid from Cannabis sativa demonstrated anti-inflammatory effects in animal models of several inflammatory conditions, including arthritis. However, it is still unknown which cell types mediate these anti-inflammatory effects of CBD, and, since CBD binds to a plethora of receptors and enzymes, it is complicated to pinpoint its mechanism of action. In this study, we elucidate the effects of CBD on B cells and peripheral blood mononuclear cells (PBMCs) in respect to survival, calcium mobilization, drug uptake, and cytokine (IL-6, IL-10, and TNF) and immunoglobulin production. Methods: Modulation of intracellular calcium and drug uptake in B cells was determined by using the fluorescent dyes Cal-520 and PoPo3, respectively. Cytokine and immunoglobulin production was evaluated by enzyme-linked immunosorbent assay. PBMC composition and B cell survival after CBD treatment was assessed by flow cytometry. Results: B cells express two major target receptors for CBD, TRPV2 (transient receptor potential vanilloid 2) and TRPA1 (transient receptor potential ankyrin 1), which are not regulated by B cell activation. CBD increased intracellular calcium levels in mouse and human B cells, which was accompanied by enhanced uptake of PoPo3. These effects were not dependent on transient receptor potential channel activation. CBD increased the number of early apoptotic B cells at the expense of viable cells and diminished interleukin (IL)-10 and tumor necrosis factor (TNF) production when activated T cell independently. In PBMCs, CBD increased IL-10 production when B cells were activated T cell dependent, while decreasing TNF levels when activated T cell independently. In PBMC/rheumatoid synovial fibroblast cocultures, CBD reduced IL-10 production when B cells were activated T cell independently. Immunoglobulin M production was augmented by CBD when B cells were activated with CpG. Conclusion: CBD is able to provide pro- and anti-inflammatory effects in isolated B cells and PBMCs. This is dependent on the activating stimulus (T cell dependent or independent) and concentration of CBD. Therefore, CBD might be used to dampen B cell activity in autoimmune conditions such as rheumatoid arthritis, in which B cells are activated by specific autoantigens.
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Affiliation(s)
- Torsten Lowin
- Poliklinik, Funktionsbereich & Hiller Forschungszentrum für Rheumatologie, University Hospital Duesseldorf, Duesseldorf, Germany
| | - Sofia Anna Laaser
- Poliklinik, Funktionsbereich & Hiller Forschungszentrum für Rheumatologie, University Hospital Duesseldorf, Duesseldorf, Germany
| | - Christina Kok
- Poliklinik, Funktionsbereich & Hiller Forschungszentrum für Rheumatologie, University Hospital Duesseldorf, Duesseldorf, Germany
| | - Eileen Bruneau
- Poliklinik, Funktionsbereich & Hiller Forschungszentrum für Rheumatologie, University Hospital Duesseldorf, Duesseldorf, Germany
| | - Georg Pongratz
- Poliklinik, Funktionsbereich & Hiller Forschungszentrum für Rheumatologie, University Hospital Duesseldorf, Duesseldorf, Germany
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20
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Tajik T, Baghaei K, Moghadam VE, Farrokhi N, Salami SA. Extracellular vesicles of cannabis with high CBD content induce anticancer signaling in human hepatocellular carcinoma. Biomed Pharmacother 2022; 152:113209. [PMID: 35667235 DOI: 10.1016/j.biopha.2022.113209] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 11/30/2022] Open
Abstract
Plant-derived extracellular vesicles (EVs) have been the topic of interest in recent years due to their proven therapeutic properties. Intact or manipulated plant EVs have shown antioxidant, anti-inflammatory, and anti-cancerous activities as a result of containing bioactive metabolites and other endogenous molecules. Less is known about the EV efficacy with high levels of bioactive secondary metabolites derived from medicinal or non-edible plants. Numerous data suggest the functionality of Cannabis sativa extract and its phytocannabinoids in cancer treatment. Here, two chemotypes of cannabis with different levels of D-9-tetrahydrocannabinol (THC) and cannabidiol (CBD) were selected. EVs were isolated from each chemotype via differential ultracentrifugation. HPLC analysis was illustrative of the absence of THC in EVs derived from both plants. Therefore, two types of EVs were classified according to their CBD content into high- (H.C-EVs) and low-CBD EVs (L.C-EVs). Electron microscopy and DLS showed both cannabis-derived EVs (CDEVs) can be considered as exosome-like nanovesicles. Cytotoxicity assay showed that H.C-EVs strongly decreased the viability of two hepatocellular carcinoma (HCC) cell lines, HepG2 and Huh-7, in a dose and time-dependent manner compared with L.C-EVs. H.C-EVs had no significant effect on HUVECs normal cell growth. The finding showed that the H.C-EVs arrested the G0/G1 phase in the cell cycle and significantly induced cell death by activating mitochondrial-dependent apoptosis signaling pathways in both HCC cell lines. Altogether, the current study highlights that CDEVs can be an ideal natural vehicle for bioactive phytocannabinoids and a promising strategy in cancer management.
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Affiliation(s)
- Tahereh Tajik
- Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran; Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran 1985717413, Iran
| | - Kaveh Baghaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran 1985717413, Iran; Gastroenterology and Liver Diseases Research center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran 1985717413, Iran.
| | - Vahid Erfani Moghadam
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Golestan University of Medical Sciences, Gorgan, Iran; Food, Drug, Natural Products Health Research Centre, Golestan University of Medical Science, Gorgan, Iran.
| | - Naser Farrokhi
- Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran.
| | - Seyed Alireza Salami
- Department of Horticultural Science, Faculty of Agricultural Sciences and Engineering, University of Tehran, Karaj, Iran; Industrial and Medical Cannabis Research Institute (IMCRI), Tehran 14176-14411, Iran
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Villanueva MRB, Joshaghani N, Villa N, Badla O, Goit R, Saddik SE, Dawood SN, Rabih AM, Niaj A, Raman A, Uprety M, Calero M, Khan S. Efficacy, Safety, and Regulation of Cannabidiol on Chronic Pain: A Systematic Review. Cureus 2022; 14:e26913. [PMID: 35860716 PMCID: PMC9288157 DOI: 10.7759/cureus.26913] [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: 06/08/2022] [Accepted: 07/15/2022] [Indexed: 11/05/2022] Open
Abstract
We conducted a systematic review to determine the efficacy and safety of cannabidiol (CBD) for chronic pain. The systematic review is according to the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) 2020 checklist. Five databases (PubMed, PubMed Central, Medline, Cochrane Library, and ScienceDirect) were searched using cannabidiol, CBD, hemp, and chronic pain. Inclusion criteria used were studies on adult populations >18 years old; pain symptoms >three months duration; all available preparations of CBD; human studies only; publication in English in the past five years. A total of 2298 articles were found. Inclusion criteria were applied, and quality assessments were done, resulting in 12 publications eligible for the review. CBD and tetrahydrocannabinol (THC), both from Cannabis plants with almost identical chemical structures, attach to the CB receptor, eliciting different effects like the psychoactivity seen on THC but less or none in CBD. Regulations of CBD worldwide differ from each other due to the insufficiency of solid evidence to establish its benefit versus the risks. However, a few studies are showing the benefits of CBD not only for chronic pain but also for sleep improvement and quality of life. In conclusion, CBD is an excellent alternative to an opioid in chronic pain because CBD is non-intoxicating in its pure form. More clinical trials should be done to prove CBD's significance clinically and statistically.
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Affiliation(s)
- Maria Resah B Villanueva
- Internal Medicine/Family Medicine, California Institute of Behavioral Neurosciences and Psychology, Fairfield, USA
| | - Narges Joshaghani
- Psychiatry and Behavioral Sciences, California Institute of Behavioral Neurosciences and Psychology, Fairfield, USA
| | - Nicole Villa
- Internal Medicine, California Institute of Behavioral Neurosciences and Psychology, Fairfield, USA
| | - Omar Badla
- General Surgery, California Institute of Behavioral Neurosciences and Psychology, Fairfield, USA
| | - Raman Goit
- Internal Medicine, California Institute of Behavioral Neurosciences and Psychology, Fairfield, USA
| | - Samia E Saddik
- Internal Medicine, California Institute of Behavioral Neurosciences and Psychology, Fairfield, USA
| | - Sarah N Dawood
- Pediatrics, California Institute of Behavioral Neurosciences and Psychology, Fairfield, USA
| | - Ahmad M Rabih
- Internal Medicine, California Institute of Behavioral Neurosciences and Psychology, Fairfield, USA
| | - Ahmad Niaj
- Internal Medicine, California Institute of Behavioral Neurosciences and Psychology, Fairfield, USA
| | - Aishwarya Raman
- Internal Medicine, California Institute of Behavioral Neurosciences and Psychology, Fairfield, USA
| | - Manish Uprety
- Internal Medicine, California Institute of Behavioral Neurosciences and Psychology, Fairfield, USA
| | - Maria Calero
- Obstetrics and Gynecology, California Institute of Behavioral Neurosciences and Psychology, Fairfield, USA
| | - Safeera Khan
- Internal Medicine, California Institute of Behavioral Neurosciences and Psychology, Fairfield, USA
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22
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Cannabidiol Antiproliferative Effect in Triple-Negative Breast Cancer MDA-MB-231 Cells Is Modulated by Its Physical State and by IGF-1. Int J Mol Sci 2022; 23:ijms23137145. [PMID: 35806150 PMCID: PMC9266539 DOI: 10.3390/ijms23137145] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/15/2022] [Accepted: 06/23/2022] [Indexed: 12/10/2022] Open
Abstract
Cannabidiol (CBD) is a non-psychoactive phytocannabinoid that has been discussed for its safety and efficacy in cancer treatments. For this reason, we have inquired into its use on triple-negative human breast cancer. Analyzing the biological effects of CBD on MDA-MB-231, we have demonstrated that both CBD dosage and serum concentrations in the culture medium influence its outcomes; furthermore, light scattering studies demonstrated that serum impacts the CBD aggregation state by acting as a surfactant agent. Pharmacological studies on CBD in combination with chemotherapeutic agents reveal that CBD possesses a protective action against the cytotoxic effect exerted by cisplatin on MDA-MB-231 grown in standard conditions. Furthermore, in a low serum condition (0.5%), starting from a threshold concentration (5 µM), CBD forms aggregates, exerts cytostatic antiproliferative outcomes, and promotes cell cycle arrest activating autophagy. At doses above the threshold, CBD exerts a highly cytotoxic effect inducing bubbling cell death. Finally, IGF-1 and EGF antagonize the antiproliferative effect of CBD protecting cells from harmful consequences of CBD aggregates. In conclusion, CBD effect is strongly associated with the physical state and concentration that reaches the treated cells, parameters not taken into account in most of the research papers.
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23
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Sabnis RW. Diazepinone Compounds as Sppl2a Inhibitors for Treating Autoimmune Diseases and Lymphomas. ACS Med Chem Lett 2022; 13:881-882. [DOI: 10.1021/acsmedchemlett.2c00190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Indexed: 11/29/2022] Open
Affiliation(s)
- Ram W. Sabnis
- Smith, Gambrell & Russell LLP, 1105 West Peachtree Street NE, Suite 1000, Atlanta, Georgia 30309, United States
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24
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Valenti C, Billi M, Pancrazi GL, Calabria E, Armogida NG, Tortora G, Pagano S, Barnaba P, Marinucci L. Biological Effects of Cannabidiol on Human Cancer Cells: Systematic Review of the Literature. Pharmacol Res 2022; 181:106267. [DOI: 10.1016/j.phrs.2022.106267] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/17/2022] [Accepted: 05/17/2022] [Indexed: 12/12/2022]
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25
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Nigro E, Pecoraro MT, Formato M, Piccolella S, Ragucci S, Mallardo M, Russo R, Di Maro A, Daniele A, Pacifico S. Cannabidiolic acid in Hemp Seed Oil Table Spoon and Beyond. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27082566. [PMID: 35458762 PMCID: PMC9029873 DOI: 10.3390/molecules27082566] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/12/2022] [Accepted: 04/13/2022] [Indexed: 12/16/2022]
Abstract
Cannabidiolic acid (CBDA) is the main precannabinoid in industrial hemp. It represents a common constituent of hemp seed oil, but mainly abundant in the aerial parts of the plant (including their processing waste). Thus, the optimization of fast and low-cost purification strategies is mandatory, as well as a deep investigation on its nutraceutical and cosmeceutical properties. To this purpose, CBDA content in hemp seed oil is evaluated, and its recovery from wasted leaves is favorably achieved. The cytotoxicity screening towards HaCaT cells, by means of MTT, SRB and LDH release assays, suggested it was not able to decrease cell viability or perturb cell integrity up to 10 μM concentration. Thus, the ability of CBDA to differentially modulate the release of proinflammatory cytokines and chemokines mediators has been evaluated, finding that CBDA decreased IFN-γ, CXCL8, CXCL10, CCL2, CCL4 and CCL5, mostly in a dose-dependent manner, with 10 μM tested concentration exerting the highest activity. These data, together with those from assessing antimicrobial activity against Gram(+) and Gram(−) bacteria and the antibiofilm formation, suggest that CBDA is able to counteract the inflammatory response, also preventing bacteria colonization.
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Affiliation(s)
- Ersilia Nigro
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche, Farmaceutiche, Università della Campania "Luigi Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy
- CEINGE, Biotecnologie Avanzate Scarl, Via Gaetano Salvatore 486, 80145 Naples, Italy
| | - Maria Tommasina Pecoraro
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche, Farmaceutiche, Università della Campania "Luigi Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy
| | - Marialuisa Formato
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche, Farmaceutiche, Università della Campania "Luigi Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy
| | - Simona Piccolella
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche, Farmaceutiche, Università della Campania "Luigi Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy
| | - Sara Ragucci
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche, Farmaceutiche, Università della Campania "Luigi Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy
| | - Marta Mallardo
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche, Farmaceutiche, Università della Campania "Luigi Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy
- CEINGE, Biotecnologie Avanzate Scarl, Via Gaetano Salvatore 486, 80145 Naples, Italy
| | - Rosita Russo
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche, Farmaceutiche, Università della Campania "Luigi Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy
| | - Antimo Di Maro
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche, Farmaceutiche, Università della Campania "Luigi Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy
| | - Aurora Daniele
- CEINGE, Biotecnologie Avanzate Scarl, Via Gaetano Salvatore 486, 80145 Naples, Italy
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, "Federico II" Università degli Studi di Napoli, 80131 Naples, Italy
| | - Severina Pacifico
- Dipartimento di Scienze e Tecnologie Ambientali, Biologiche, Farmaceutiche, Università della Campania "Luigi Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy
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26
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Cannabidiol-Loaded Mixed Polymeric Micelles of Chitosan/Poly(Vinyl Alcohol) and Poly(Methyl Methacrylate) for Trans-Corneal Delivery. Pharmaceutics 2021; 13:pharmaceutics13122142. [PMID: 34959427 PMCID: PMC8703866 DOI: 10.3390/pharmaceutics13122142] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/08/2021] [Accepted: 12/09/2021] [Indexed: 12/13/2022] Open
Abstract
Ocular drug delivery is challenging due to the very short drug residence time and low permeability. In this work, we produce and characterize mucoadhesive mixed polymeric micelles (PMs) made of chitosan (CS) and poly(vinyl alcohol) backbones graft-hydrophobized with short poly(methyl methacrylate) blocks and use them to encapsulate cannabidiol (CBD), an anti-inflammatory cannabinoid. CBD-loaded mixed PMs are physically stabilized by ionotropic crosslinking of the CS domains with sodium tripolyphoshate and spray-drying. These mixed PMs display CBD loading capacity of 20% w/w and sizes of 100-200 nm, and spherical morphology (cryogenic-transmission electron microscopy). The good compatibility of the unloaded and CBD-loaded PMs is assessed in a human corneal epithelial cell line. Then, we confirm the permeability of CBD-free PMs and nanoencapsulated CBD in human corneal epithelial cell monolayers under liquid-liquid and air-liquid conditions. Overall, our results highlight the potential of these polymeric nanocarriers for ocular drug delivery.
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27
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Langer HT, Avey A, Baar K. Cannabidiol Does Not Impact Acute Anabolic or Inflammatory Signaling in Skeletal Muscle In Vitro. Cannabis Cannabinoid Res 2021; 7:628-636. [PMID: 34762497 DOI: 10.1089/can.2021.0132] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Background: Cannabidiol (CBD) is becoming increasingly popular for the treatment of clinical conditions including as an aid for muscle recovery. Previous work demonstrated that CBD exhibited mild effects on skeletal muscle, with a tendency to increase anabolic signaling and decrease inflammatory signaling. Methods: To gain mechanistic insight and extend these findings, we conducted a set of experiments using C2C12 myotubes. Results: Increasing the dose of CBD (1-5 μM) provided with insulin-like growth factor 1 (IGF-1) showed no effect on anabolic signaling through mTORC1 (S6K1 [Thr389], p=0.27; rpS6 [Ser240/244], p=0.81; or 4E-BP1 [Thr37/46], p=0.87). Similarly, inflammatory signaling through nuclear factor kappa B (NF-κB) (p105, p=0.88; p50, p=0.93; or phosphorylated p65 [Ser536], p=0.84) in response to tumor necrosis factor α (TNFα) was unaffected by CBD (2.5 μM), whereas dioscin, a natural product that blocks NF-κB signaling, reduced p105 and phosphorylated p65 (Ser536) compared with the TNFα and the TNFα + CBD condition (p<0.01 and p<0.05, respectively). Finally, cannabinoid receptor type 1 (CB1) receptor levels were measured in C2C12 cells, murine skeletal muscle, cortex, and hippocampus. Although CB1 was not detectable in muscle cells or muscle tissue, high levels were observed in brain tissue. Conclusion: In conclusion, CBD does not directly modulate anabolic or inflammatory signaling in myotubes in vitro, which can likely be explained by the lack of functional receptors.
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Affiliation(s)
- Henning T Langer
- Department of Physiology and Membrane Biology and Physiology and Behavior, University of California, Davis, California, USA
| | - Alec Avey
- Department of Neurobiology, Physiology and Behavior, University of California, Davis, California, USA
| | - Keith Baar
- Department of Physiology and Membrane Biology and Physiology and Behavior, University of California, Davis, California, USA.,Department of Neurobiology, Physiology and Behavior, University of California, Davis, California, USA.,VA Northern California Health Care System, Mather, California, USA
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28
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Xu S, Zhang H, Li CZ, Lai PS, Wang G, Chan YS, Cheng SH, Chen X. Cannabidiol promotes fin regeneration and reduces apoptosis in zebrafish embryos. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104694] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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29
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Immune Responses Are Differentially Regulated by Root, Stem, Leaf, and Flower Extracts of Female and Male CBD Hemp (Cannabis sativa L.) Plants. IMMUNO 2021. [DOI: 10.3390/immuno1040025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Industrial hemp (Cannabis sativa L.) has many applications, including the production of textiles, agricultural extracts, nutritional products, and botanicals enriched with cannabinoids and full-spectrum terpenes naturally present in the plant. In this study, the dynamics of distribution and accumulation of 10 main cannabinoids in hemp were quantified. Hemp bioactive compounds were evaluated for anti-inflammatory activity in lipopolysaccharide-induced RAW 264.7 macrophage cells. While all tissues of hemp showed moderate anti-inflammatory properties, female flowers demonstrated the highest activity. CBD showed the strongest anti-inflammatory activity with suppression of nitric oxide production at 2 μg/mL and the reduced expressions of the pro-inflammatory genes COX-2, IL-6, and TNF-α at as low as 2 ng/mL. The topical hemp inflorescences (1–50 μg/mL) and CBD alone (20–200 ng/mL) also improved mitochondrial respiration. These data contribute to the future development of agricultural and plant management techniques to produce hemp with specific metabolite profiles to selectively support immune health.
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30
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Gugliandolo E, Licata P, Peritore AF, Siracusa R, D’Amico R, Cordaro M, Fusco R, Impellizzeri D, Di Paola R, Cuzzocrea S, Crupi R, Interlandi CD. Effect of Cannabidiol (CBD) on Canine Inflammatory Response: An Ex Vivo Study on LPS Stimulated Whole Blood. Vet Sci 2021; 8:vetsci8090185. [PMID: 34564578 PMCID: PMC8473042 DOI: 10.3390/vetsci8090185] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/25/2021] [Accepted: 09/02/2021] [Indexed: 01/09/2023] Open
Abstract
The use of cannabidiol (CBD) for animal species is an area of growing interest, for example for its anti-inflammatory and immuno-modulating properties, even though all of its biological effects are still not fully understood, especially in veterinary medicine. Therefore, the aim of this study was to investigate the anti-inflammatory and immuno-modulating properties of CBD for the first time directly in canine inflammatory response. We used an ex vivo model of LPS-stimulated whole dog blood. We stimulated the whole blood from healthy dogs with LPS 100 ng/mL for 24 h in the presence or not of CBD 50 and 100 μg/mL. We observed a reduction in IL-6 and TNF-α production from the group treated with CBD, but non-altered IL-10 levels. Moreover, we also observed from the CBD-treated group a reduction in Nf-κB and COX-2 expression. In conclusion, we demonstrated for the first time the anti-inflammatory and immuno-modulating properties of CBD directly in dogs' immune cells, using a canine ex vivo inflammatory model. The results obtained from these studies encourage further studies to better understand the possible therapeutic role of CBD in veterinary medicine.
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Affiliation(s)
- Enrico Gugliandolo
- Department of Veterinary Science, University of Messina, 98166 Messina, Italy; (E.G.); (P.L.); (R.C.); (C.D.I.)
| | - Patrizia Licata
- Department of Veterinary Science, University of Messina, 98166 Messina, Italy; (E.G.); (P.L.); (R.C.); (C.D.I.)
| | - Alessio Filippo Peritore
- Department of Chemical, Biological, Pharmaceutical, and Environmental Science, University of Messina, 98166 Messina, Italy; (A.F.P.); (R.S.); (R.D.); (R.F.); (D.I.)
| | - Rosalba Siracusa
- Department of Chemical, Biological, Pharmaceutical, and Environmental Science, University of Messina, 98166 Messina, Italy; (A.F.P.); (R.S.); (R.D.); (R.F.); (D.I.)
| | - Ramona D’Amico
- Department of Chemical, Biological, Pharmaceutical, and Environmental Science, University of Messina, 98166 Messina, Italy; (A.F.P.); (R.S.); (R.D.); (R.F.); (D.I.)
| | - Marika Cordaro
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, 98166 Messina, Italy;
| | - Roberta Fusco
- Department of Chemical, Biological, Pharmaceutical, and Environmental Science, University of Messina, 98166 Messina, Italy; (A.F.P.); (R.S.); (R.D.); (R.F.); (D.I.)
| | - Daniela Impellizzeri
- Department of Chemical, Biological, Pharmaceutical, and Environmental Science, University of Messina, 98166 Messina, Italy; (A.F.P.); (R.S.); (R.D.); (R.F.); (D.I.)
| | - Rosanna Di Paola
- Department of Chemical, Biological, Pharmaceutical, and Environmental Science, University of Messina, 98166 Messina, Italy; (A.F.P.); (R.S.); (R.D.); (R.F.); (D.I.)
- Correspondence: (R.D.P.); (S.C.)
| | - Salvatore Cuzzocrea
- Department of Chemical, Biological, Pharmaceutical, and Environmental Science, University of Messina, 98166 Messina, Italy; (A.F.P.); (R.S.); (R.D.); (R.F.); (D.I.)
- Department of Pharmacological and Physiological Science, Saint Louis University School of Medicine, Saint Louis, MO 63104, USA
- Correspondence: (R.D.P.); (S.C.)
| | - Rosalia Crupi
- Department of Veterinary Science, University of Messina, 98166 Messina, Italy; (E.G.); (P.L.); (R.C.); (C.D.I.)
| | - Claudia Dina Interlandi
- Department of Veterinary Science, University of Messina, 98166 Messina, Italy; (E.G.); (P.L.); (R.C.); (C.D.I.)
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31
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Amendola G, Bocca B, Picardo V, Pelosi P, Battistini B, Ruggieri F, Attard Barbini D, De Vita D, Madia VN, Messore A, Di Santo R, Costi R. Toxicological aspects of cannabinoid, pesticide and metal levels detected in light Cannabis inflorescences grown in Italy. Food Chem Toxicol 2021; 156:112447. [PMID: 34343597 DOI: 10.1016/j.fct.2021.112447] [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: 06/03/2021] [Revised: 07/21/2021] [Accepted: 07/29/2021] [Indexed: 10/20/2022]
Abstract
Recently, the cultivation of light Cannabis, with a total THC content less than 0.6%, has been encouraged due to its industrial and therapeutic potential. This has increased the consumption of hemp for both smoking purposes and food preparation. Even so, Cannabis inflorescences are not subject to EU regulations and standards provided for food and tobacco products. A study was carried out on thirty-one inflorescences samples, collected in different Italian regions, in order to determine cannabinoids, pesticides and metals and to evaluate the exposure of consumers to contaminants and ensure a safe consumption. Contents of THC were always below 0.5%, while CBD ranged between 0.3 and 8.64%. The determination of 154 pesticides showed that 87% of the samples contained fungicides and insecticides in the range 0.01-185 μg/g. The most found are spinosad and cyprodinil. The concentration of metals ranged from 1 to more than 100 μg/g and As, Cd, Co, Cr, Hg, Cu, Mo, Ni and V exceeded the regulatory US limits for inhaled Cannabis products, while Pb exceeded them for both oral and inhaled products. These contaminants are intrinsically toxic and may affect public health. Actions are needed to establish regulatory measures and reduce the adverse effects caused by contaminants in Cannabis.
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Affiliation(s)
- G Amendola
- Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy.
| | - B Bocca
- Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy
| | - V Picardo
- Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy
| | - P Pelosi
- Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy
| | - B Battistini
- Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy
| | - F Ruggieri
- Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy
| | - D Attard Barbini
- Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy
| | - D De Vita
- Dipartimento di Biologia Ambientale, "Sapienza" Università di Roma, p.le Aldo Moro 5, 00185, Rome, Italy
| | - V N Madia
- Dipartimento di Chimica e Tecnologie del Farmaco, Istituto Pasteur-Fondazione Cenci Bolognetti, "Sapienza" Università di Roma, p.le Aldo Moro 5, 00185, Rome, Italy
| | - A Messore
- Dipartimento di Chimica e Tecnologie del Farmaco, Istituto Pasteur-Fondazione Cenci Bolognetti, "Sapienza" Università di Roma, p.le Aldo Moro 5, 00185, Rome, Italy
| | - R Di Santo
- Dipartimento di Chimica e Tecnologie del Farmaco, Istituto Pasteur-Fondazione Cenci Bolognetti, "Sapienza" Università di Roma, p.le Aldo Moro 5, 00185, Rome, Italy
| | - R Costi
- Dipartimento di Chimica e Tecnologie del Farmaco, Istituto Pasteur-Fondazione Cenci Bolognetti, "Sapienza" Università di Roma, p.le Aldo Moro 5, 00185, Rome, Italy
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32
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Pastino G, Shuster D. Chronic Cannabis Users: A New Special Population to Consider for Drug Development. Curr Rev Clin Exp Pharmacol 2021; 17:4-7. [PMID: 34455949 DOI: 10.2174/2772432816666210515145638] [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: 11/20/2020] [Revised: 02/20/2021] [Accepted: 02/24/2021] [Indexed: 11/22/2022]
Abstract
The use and acceptance of cannabis, either medically or recreationally, has substantially outpaced the collection of data necessary to evaluate its use in any population. However, the mere widespread availability does not imply the absence of risk or confirmation of efficacy and should not be treated as such. There is enough data to suggest that not only does the potential for pharmacokinetic and metabolic interactions exist, but also that baseline characteristics for a given population could be different in chronic cannabis users. Either or both of these may impact the safety and efficacy profile for any new drug in development. As such, we encourage drug developers to consider that the cannabis user may very well be a special population that warrants its own clinical pharmacology evaluation.
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Affiliation(s)
- Gina Pastino
- PRA Health Sciences, Blue Bell, Pennsylvania. United States
| | - Diana Shuster
- PRA Health Sciences, Blue Bell, Pennsylvania. United States
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33
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Likar R, Koestenberger M, Stutschnig M, Nahler G. Cannabidiol Μay Prolong Survival in Patients With Glioblastoma Multiforme. CANCER DIAGNOSIS & PROGNOSIS 2021; 1:77-82. [PMID: 35403130 PMCID: PMC8962767 DOI: 10.21873/cdp.10011] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 04/13/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Glioblastoma multiforme (GBM) is a relatively rare type of brain tumour with an incidence rate around 6 per 100,000. Even with the widely practiced combination of radiotherapy with adjuvant temozolomide, the median overall survival remains low with just 13.5 to 16 months after diagnosis. PATIENTS AND METHODS We retrospectively reviewed the survival of a cohort of 15 consecutive, unselected patients with histopathologically confirmed glioblastoma multiforme (GBM) who received CBD (400 to 600 mg orally per day) in addition to standard therapy (maximum resection of the tumour followed by radio-chemotherapy). RESULTS Of 15 patients, seven (46.7%) are now living for at least 24 months, and four (26.7%) for at least 36 months. This is more than twice as long as has been previously reported in the literature. The mean overall survival is currently 24.2 months (median 21 months). CONCLUSION CBD is a well supported co-medication and seems to prolong the survival of patients with glioblastoma multiforme.
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Affiliation(s)
- Rudolf Likar
- Abteilung für Anästhesiologie und Intensivmedizin, Klinikum Klagenfurt am Wörthersee,Klagenfurt am Wörthersee, Austria
| | - Markus Koestenberger
- Abteilung für Anästhesiologie und Intensivmedizin, Klinikum Klagenfurt am Wörthersee,Klagenfurt am Wörthersee, Austria
- Medical University Graz, Graz, Austria
| | - Martin Stutschnig
- Neurologische Abteilung, Klinikum Klagenfurt am Wörthersee, Klagenfurt am Wörthersee, Austria
| | - Gerhard Nahler
- CIS Clinical Investigation Support GmbH, Vienna, Austria
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Ożarowski M, Karpiński TM, Zielińska A, Souto EB, Wielgus K. Cannabidiol in Neurological and Neoplastic Diseases: Latest Developments on the Molecular Mechanism of Action. Int J Mol Sci 2021; 22:4294. [PMID: 33919010 PMCID: PMC8122338 DOI: 10.3390/ijms22094294] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/17/2021] [Accepted: 04/19/2021] [Indexed: 02/06/2023] Open
Abstract
As the major nonpsychotropic constituent of Cannabis sativa, cannabidiol (CBD) is regarded as one of the most promising therapeutic agents due to its proven effectiveness in clinical trials for many human diseases. Due to the urgent need for more efficient pharmacological treatments for several chronic diseases, in this review, we discuss the potential beneficial effects of CBD for Alzheimer's disease, epilepsy, multiple sclerosis, and neurological cancers. Due to its wide range of pharmacological activities (e.g., antioxidant, anti-inflammatory, and neuroprotective properties), CBD is considered a multimodal drug for the treatment of a range of neurodegenerative disorders, and various cancer types, including neoplasms of the neural system. The different mechanisms of action of CBD are here disclosed, together with recent progress in the use of this cannabis-derived constituent as a new therapeutic approach.
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Affiliation(s)
- Marcin Ożarowski
- Department of Biotechnology, Institute of Natural Fibres and Medicinal Plants—State Research Institute, Wojska Polskiego 71B, 60-630 Poznań, Poland; (M.O.); (K.W.)
| | - Tomasz M. Karpiński
- Chair and Department of Medical Microbiology, Poznań University of Medical Sciences, Wieniawskiego 3, 61-712 Poznań, Poland
| | - Aleksandra Zielińska
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszyńska 32, 60-479 Poznań, Poland;
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal;
| | - Eliana B. Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal;
- CEB—Center of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Karolina Wielgus
- Department of Biotechnology, Institute of Natural Fibres and Medicinal Plants—State Research Institute, Wojska Polskiego 71B, 60-630 Poznań, Poland; (M.O.); (K.W.)
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Maida NL, Papaseit E, Martínez L, Pérez-Mañá C, Poyatos L, Pellegrini M, Pichini S, Pacifici R, Ventura M, Galindo L, Busardò FP, Farré M. Acute Pharmacological Effects and Oral Fluid Biomarkers of the Synthetic Cannabinoid UR-144 and THC in Recreational Users. BIOLOGY 2021; 10:257. [PMID: 33805054 PMCID: PMC8064062 DOI: 10.3390/biology10040257] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/21/2021] [Accepted: 03/22/2021] [Indexed: 01/08/2023]
Abstract
Synthetic cannabinoids (SCs) are one of the most frequent classes of new psychoactive substances monitored by the EU Early Warning System and World Health Organization. UR-144 is a SC with a relative low affinity for the CB1 receptor with respect to that for the CB2 receptor. As with other cannabinoid receptor agonists, it has been monitored by the EU Early Warning System since 2012 for severe adverse effects on consumers. Since data for UR-144 human pharmacology are very limited, an observational study was carried out to evaluate its acute pharmacological effects following its administration using a cannabis joint as term of comparison. Disposition of UR-144 and delta-9-tetrahydrocannibinol (THC) was investigated in oral fluid. Sixteen volunteers smoked a joint prepared with tobacco and 1 or 1.5 mg dose of UR-144 (n = 8) or cannabis flowering tops containing 10 or 20 mg THC (n = 8). Physiological variables including systolic and diastolic blood pressure, heart rate and cutaneous temperature were measured. A set of Visual Analog Scales (VAS), the Addiction Research Centre Inventory (ARCI)-49-item short form version and the Evaluation of the Subjective Effects of Substances with Abuse Potential (VESSPA-SSE) were administered to evaluate subjective effects. Oral fluid was collected at baseline, 10, 20, 40 min and 1, 2, 3 and 4 h after smoking, for UR-144 or THC concentration monitoring. Results showed significant statistical increases in both systolic and diastolic blood pressure and heart rate after both UR-144 and cannabis smoking. Both substances produced an increase in VAS related to stimulant-like and high effects, but scores were significantly higher after cannabis administration. No hallucinogenic effects were observed. Maximal oral fluid UR-144 and THC concentrations appeared at 20 and 10 min after smoking, respectively. The presence of UR-144 in oral fluid constitutes a non-invasive biomarker of SC consumption. The results of this observational study provide valuable preliminary data of the pharmacological effects of UR-144, showing a similar profile of cardiovascular effects in comparison with THC but lower intensity of subjective effects. Our results have to be confirmed by research in a larger sample to extensively clarify pharmacological effects and the health risk profile of UR-144.
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Affiliation(s)
- Nunzia La Maida
- Department of Excellence of Biomedical Science and Public Health, University “Politecnica delle Marche” of Ancona, Via Tronto 71, 60124 Ancona, Italy; (N.L.M.); (F.P.B.)
| | - Esther Papaseit
- Clinical Pharmacology Unit, Hospital Universitari Germans Trias i Pujol and Institut de Recerca Germans Trias i Pujol (HUGTiP-IGTP), 08916 Badalona, Spain; (E.P.); (L.M.); (C.P.-M.); (L.P.); (M.F.)
- Department of Pharmacology, Therapeutics and Toxicology, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallés, Spain
| | - Lucia Martínez
- Clinical Pharmacology Unit, Hospital Universitari Germans Trias i Pujol and Institut de Recerca Germans Trias i Pujol (HUGTiP-IGTP), 08916 Badalona, Spain; (E.P.); (L.M.); (C.P.-M.); (L.P.); (M.F.)
- Clinical Phamacology Department, Hospital Universitario La Paz, 28046 Madrid, Spain
| | - Clara Pérez-Mañá
- Clinical Pharmacology Unit, Hospital Universitari Germans Trias i Pujol and Institut de Recerca Germans Trias i Pujol (HUGTiP-IGTP), 08916 Badalona, Spain; (E.P.); (L.M.); (C.P.-M.); (L.P.); (M.F.)
- Department of Pharmacology, Therapeutics and Toxicology, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallés, Spain
| | - Lourdes Poyatos
- Clinical Pharmacology Unit, Hospital Universitari Germans Trias i Pujol and Institut de Recerca Germans Trias i Pujol (HUGTiP-IGTP), 08916 Badalona, Spain; (E.P.); (L.M.); (C.P.-M.); (L.P.); (M.F.)
- Department of Pharmacology, Therapeutics and Toxicology, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallés, Spain
| | - Manuela Pellegrini
- National Centre on Addiction and Doping, Istituto Superiore di Sanità, V.Le Regina Elena 299, 00161 Rome, Italy; (S.P.); (R.P.)
| | - Simona Pichini
- National Centre on Addiction and Doping, Istituto Superiore di Sanità, V.Le Regina Elena 299, 00161 Rome, Italy; (S.P.); (R.P.)
| | - Roberta Pacifici
- National Centre on Addiction and Doping, Istituto Superiore di Sanità, V.Le Regina Elena 299, 00161 Rome, Italy; (S.P.); (R.P.)
| | - Mireia Ventura
- Energy Control, Associació Benestar i Desenvolupament, 08041 Barcelona, Spain; (M.V.); (L.G.)
| | - Liliana Galindo
- Energy Control, Associació Benestar i Desenvolupament, 08041 Barcelona, Spain; (M.V.); (L.G.)
- Department of Psychiatry, University of Cambridge/Cambridgeshire and Peterborough NHS Foundation Trust, Cambridge CB20QQ, UK
| | - Francesco Paolo Busardò
- Department of Excellence of Biomedical Science and Public Health, University “Politecnica delle Marche” of Ancona, Via Tronto 71, 60124 Ancona, Italy; (N.L.M.); (F.P.B.)
| | - Magí Farré
- Clinical Pharmacology Unit, Hospital Universitari Germans Trias i Pujol and Institut de Recerca Germans Trias i Pujol (HUGTiP-IGTP), 08916 Badalona, Spain; (E.P.); (L.M.); (C.P.-M.); (L.P.); (M.F.)
- Department of Pharmacology, Therapeutics and Toxicology, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallés, Spain
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Microfluidics for nanomedicines manufacturing: An affordable and low-cost 3D printing approach. Int J Pharm 2021; 599:120464. [PMID: 33713759 DOI: 10.1016/j.ijpharm.2021.120464] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 12/17/2022]
Abstract
During the last decade, an innovative lab on a chip technology known as microfluidics became popular in the pharmaceutical field to produce nanomedicines in a scalable way. Nevertheless, the predominant barriers for new microfluidics users are access to expensive equipment and device fabrication expertise. 3D printing technology promises to be an enabling new field that helps to overcome these drawbacks expanding the realm of microfluidics. Among 3D printing techniques, fused deposition modeling allows the production of devices with relatively inexpensive materials and printers. In this work, we developed two different microfluidic chips designed to obtain a passive micromixing by a "zigzag" bas-relief and by the presence of "split and recombine" channels. Computational fluid dynamics studies improved the evaluation of the mixing potential. A fused deposition modeling 3D printer was used to print the developed devices with polypropylene as manufacturing material. Then, two different model nanocarriers (i.e., polymeric nanoparticles and liposomes), loading cannabidiol as model drug, were formulated evaluating the influence of manufacturing parameters on the final nanocarrier characteristics with a design of experiments approach (2-level full factorial design). Both the chips showed an effective production of nanocarriers with tunable characteristics and with an efficient drug loading. These polypropylene-based microfluidic chips could represent an affordable and low-cost alternative to common microfluidic devices for the effective manufacturing of nanomedicines (both polymer- and lipid-based) after appropriate tuning of manufacturing parameters.
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Antioxidant and Anti-inflammatory Effect of Cannabidiol Contributes to the Decreased Lipid Peroxidation of Keratinocytes of Rat Skin Exposed to UV Radiation. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021. [DOI: 10.1155/2021/6647222] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
There is a great need for compounds with antioxidant and anti-inflammatory properties for protection against UV radiation, which is the most prooxidative physical factor that skin cells are exposed to everyday. Therefore, the aim of the study was to evaluate the mechanism of phytocannabinoid-cannabidiol (CBD) action in vivo on lipid metabolism in keratinocytes of rat skin exposed to UVA/UVB radiation. Our results show that CBD protects keratinocytes against the effects of UVA/UVB radiation by reducing lipid peroxidation products: 4-HNE and 8-isoPGF2α. In addition, CBD significantly increases the level of endocannabinoids, such as anandamide, 2-arachidonylglycerol, and palmitoylethanolamide, and the activation of their receptors CB1/2 or TRPV1. The above changes are due to the protective effect of CBD against the UVA/UVB-induced decrease in the level/activity of superoxide dismutase and the components of the thioredoxin and glutathione systems. CBD also increases the in vivo transcriptional activity of Nrf2 and the expression of its Bach1 inhibitor as well as preventing the UVA/UVB-induced increase in the expression of Nrf2 activators p21, p62, p38, and KAP1 and proinflammatory factors such as NFκB and TNFα. By counteracting oxidative stress and changes in lipid structure in keratinocytes, CBD prevents cellular metabolic disturbances, protecting the epidermis against UV damage.
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