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Chiarentin R, Pereira Bottcher D, Zeni B, Grave C, Neutzling Kaufmann F, Emmanoella Sebulsqui Saraiva T, da Costa Berna G, Aline Führ G, Saraiva Hermann B, Hoffmeister B, Dal Pont Morisso F, Feiffer Charão M, Gasparin Verza S, Deise Fleck J, Heemann Betti A, Bastos de Mattos C. Development and pharmacological evaluation of liposomes and nanocapsules containing paroxetine hydrochloride. Int J Pharm 2024; 660:124304. [PMID: 38848799 DOI: 10.1016/j.ijpharm.2024.124304] [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: 01/10/2024] [Revised: 06/03/2024] [Accepted: 06/04/2024] [Indexed: 06/09/2024]
Abstract
Depression is one of the most common psychiatric disorders. Nanotechnology has emerged to optimize the pharmacological response. Therefore, the aim of this work was to develop and characterize liposomes and nanocapsules containing paroxetine hydrochloride and evaluate their antidepressant-like effect using the open field and tail suspension tests in mice. Liposomes and nanocapsules were prepared using the reverse-phase evaporation and nanoprecipitation methods, respectively. The particle size of the formulation ranged from 121.81 to 310.73 nm, the polydispersity index from 0.096 to 0.303, the zeta potential from -11.94 to -34.50 mV, the pH from 5.31 to 7.38, the drug content from 80.82 to 94.36 %, and the association efficiency was 98 %. Paroxetine hydrochloride showed slower release when associated with liposomes (43.82 %) compared to nanocapsules (95.59 %) after 10 h. In Vero cells, in vitro toxicity showed a concentration-dependent effect for paroxetine hydrochloride nanostructures. Both nanostructures decreased the immobility time in the TST at 2.5 mg/kg without affecting the number of crossings in the open field test, suggesting the antidepressant-like effect of paroxetine. In addition, the nanocapsules decreased the number of groomings, reinforcing the anxiolytic effect of this drug. These results suggest that the nanostructures were effective in preserving the antidepressant-like effect of paroxetine hydrochloride even at low doses.
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Affiliation(s)
- Raquel Chiarentin
- Bioanalysis Laboratory, Health Sciences Institute, Feevale University, Novo Hamburgo, RS, Brazil; Postgraduate Program in Toxicology and Analytical Toxicology, Feevale University, Novo Hamburgo, RS, Brazil
| | | | - Bruna Zeni
- Bioanalysis Laboratory, Health Sciences Institute, Feevale University, Novo Hamburgo, RS, Brazil
| | - Carolina Grave
- Bioanalysis Laboratory, Health Sciences Institute, Feevale University, Novo Hamburgo, RS, Brazil; Postgraduate Program in Toxicology and Analytical Toxicology, Feevale University, Novo Hamburgo, RS, Brazil
| | | | - Thalia Emmanoella Sebulsqui Saraiva
- Bioanalysis Laboratory, Health Sciences Institute, Feevale University, Novo Hamburgo, RS, Brazil; Postgraduate Program in Toxicology and Analytical Toxicology, Feevale University, Novo Hamburgo, RS, Brazil
| | - Gabriel da Costa Berna
- Bioanalysis Laboratory, Health Sciences Institute, Feevale University, Novo Hamburgo, RS, Brazil
| | - Giulia Aline Führ
- Bioanalysis Laboratory, Health Sciences Institute, Feevale University, Novo Hamburgo, RS, Brazil
| | - Bruna Saraiva Hermann
- Molecular Microbiology Laboratory, Health Sciences Institute, Feevale University, Novo Hamburgo, RS, Brazil; Postgraduate Program in Toxicology and Analytical Toxicology, Feevale University, Novo Hamburgo, RS, Brazil
| | - Bruna Hoffmeister
- Molecular Microbiology Laboratory, Health Sciences Institute, Feevale University, Novo Hamburgo, RS, Brazil; Postgraduate Program in Toxicology and Analytical Toxicology, Feevale University, Novo Hamburgo, RS, Brazil
| | - Fernando Dal Pont Morisso
- Advanced Materials Studies Laboratory, Creative and Technological Sciences Institute, Feevale University, Novo Hamburgo, RS, Brazil; Postgraduate Program in Materials Technology and Industrial Processes, Feevale University, Novo Hamburgo, RS, Brazil
| | - Mariele Feiffer Charão
- Bioanalysis Laboratory, Health Sciences Institute, Feevale University, Novo Hamburgo, RS, Brazil; Postgraduate Program in Toxicology and Analytical Toxicology, Feevale University, Novo Hamburgo, RS, Brazil
| | - Simone Gasparin Verza
- Bioanalysis Laboratory, Health Sciences Institute, Feevale University, Novo Hamburgo, RS, Brazil; Postgraduate Program in Toxicology and Analytical Toxicology, Feevale University, Novo Hamburgo, RS, Brazil
| | - Juliane Deise Fleck
- Molecular Microbiology Laboratory, Health Sciences Institute, Feevale University, Novo Hamburgo, RS, Brazil; Postgraduate Program in Toxicology and Analytical Toxicology, Feevale University, Novo Hamburgo, RS, Brazil
| | - Andresa Heemann Betti
- Bioanalysis Laboratory, Health Sciences Institute, Feevale University, Novo Hamburgo, RS, Brazil; Postgraduate Program in Toxicology and Analytical Toxicology, Feevale University, Novo Hamburgo, RS, Brazil
| | - Cristiane Bastos de Mattos
- Bioanalysis Laboratory, Health Sciences Institute, Feevale University, Novo Hamburgo, RS, Brazil; Postgraduate Program in Toxicology and Analytical Toxicology, Feevale University, Novo Hamburgo, RS, Brazil.
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Huang S, Wen T, Wang J, Wei H, Xiao Z, Li B, Shuai X. Nanoparticle-integrated dissolving microneedles for the co-delivery of R848/aPD-1 to synergistically reverse the immunosuppressive microenvironment of triple-negative breast cancer. Acta Biomater 2024; 176:344-355. [PMID: 38244662 DOI: 10.1016/j.actbio.2024.01.009] [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: 09/25/2023] [Revised: 12/23/2023] [Accepted: 01/09/2024] [Indexed: 01/22/2024]
Abstract
Nowadays, effective immunotherapy against triple-negative breast cancer (TNBC) remains challenging due to the immunosuppressive tumor microenvironment. Immune checkpoint inhibitor is mostly employed to restore the activity of tumor-specific immune cells, which however brings little therapeutic outcome owing to the limited number of tumor-infiltrating CD8+ T cells and the inefficient delivery of immune drugs to the tumor tissue. Aiming to solve these problems, we herein constructed a tailor-made dissolving microneedle co-encapsulating the TLR7/8 agonist R848 and the immune checkpoint inhibitor aPD-1, termed αNP-RNP@DMN, and fabricated it as a transdermal drug delivery system. This well-designed microneedle patch, endowed with efficient tumor drug delivery ability, was able to mature tumor-infiltrating dendritic cells (TIDCs) and further promote the infiltration of CD8+ T cells into the tumor tissue with the aid of R848. Moreover, the introduction of aPD-1 blocked the programmed cell death protein 1/programmed cell death ligand 1(PD-1/PD-L1) immune checkpoints, synergistically reversing the immunosuppressive microenvironment of TNBC. In vivo therapeutic results demonstrated that αNP-RNP@DMN not only significantly prolonged the survival time of 4T1 tumor-bearing mice, but also inhibited tumor recurrence and lung metastasis after surgery, implying the great potential of this effective drug delivery system for enhanced immunotherapy of superficial tumors. STATEMENT OF SIGNIFICANCE: The limited number of tumor-infiltrating CD8+ T cells and the inefficient delivery of immune drugs to the tumor tissue hinder the effective immunotherapy of triple-negative breast cancer (TNBC). Herein, a dissolving microneedle co-encapsulating TLR7/8 agonist R848 and immune checkpoint inhibitor aPD-1 was developed and fabricated as a transdermal drug delivery system. This tailor-made microneedle patch not only promoted drug accumulation in tumor sites in a safe and painless manner, but also lifted the immune-suppressive state of tumor-infiltrating dendritic cells (TIDCs). The activated TIDCs further enhanced T-cell infiltration into the tumor tissue, thus successfully boosting the therapeutic efficacy of aPD-1. This study demonstrated that this well-designed microneedle patch could be served as an effective drug delivery system for enhanced immunotherapy of TNBC.
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Affiliation(s)
- Sicong Huang
- PCFM Lab of Ministry of Education, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Ting Wen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Jiachen Wang
- PCFM Lab of Ministry of Education, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Huiye Wei
- PCFM Lab of Ministry of Education, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Zecong Xiao
- PCFM Lab of Ministry of Education, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China.
| | - Bo Li
- PCFM Lab of Ministry of Education, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China.
| | - Xintao Shuai
- PCFM Lab of Ministry of Education, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China.
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