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1.
Int J Biol Macromol ; 266(Pt 1): 131048, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38522697

RESUMO

Past scientific testimonials in the field of glioma research, the deadliest tumor among all brain cancer types with the life span of 10-15 months after diagnosis is considered as glioblastoma multiforme (GBM). Even though the availability of treatment options such as chemotherapy, radiotherapy, and surgery, are unable to completely cure GBM due to tumor microenvironment complexity, intrinsic cellular signalling, and genetic mutations which are involved in chemoresistance. The blood-brain barrier is accountable for restricting drugs entry at the tumor location and related biological challenges like endocytic degradation, short systemic circulation, and insufficient cellular penetration lead to tumor aggression and progression. The above stated challenges can be better mitigated by small interfering RNAs (siRNA) by knockdown genes responsible for tumor progression and resistance. However, siRNA encounters with challenges like inefficient cellular transfection, short circulation time, endogenous degradation, and off-target effects. The novel functionalized nanocarrier approach in conjunction with biological and chemical modification offers an intriguing potential to address challenges associated with the naked siRNA and efficiently silence STAT3, coffilin-1, EGFR, VEGF, SMO, MGMT, HAO-1, GPX-4, TfR, LDLR and galectin-1 genes in GBM tumor. This review highlights the nanoengineered siRNA carriers, their recent advancements, future perspectives, and strategies to overcome the systemic siRNA delivery challenges for glioma treatment.


Assuntos
Neoplasias Encefálicas , Glioma , RNA Interferente Pequeno , Humanos , RNA Interferente Pequeno/genética , RNA Interferente Pequeno/uso terapêutico , Glioma/genética , Glioma/terapia , Neoplasias Encefálicas/genética , Neoplasias Encefálicas/terapia , Neoplasias Encefálicas/patologia , Nanopartículas/química , Animais , Portadores de Fármacos/química , Terapia Genética/métodos
2.
Int J Pharm ; 654: 123975, 2024 Apr 10.
Artigo em Inglês | MEDLINE | ID: mdl-38452833

RESUMO

Targeted therapies enhance the efficacy of tumour screening and management while lowering side effects. Multiple tumours, including liver cancer, exhibit elevated levels of folate receptor expression. This research attempted to develop surface-functionalised bosutinib cubosomes against hepatocellular carcinoma. The novelty of this work is the anti-hepatic action of bosutinib (BST) and folic acid-modified bosutinib cubosomes (BSTMF) established through proto-oncogene tyrosine-protein kinase (SrC)/ focal adhesion kinase(FAK), reactive oxygen species (ROS), mitochondrial membrane potential (MMP), and cell cytotoxicity. Later, the in-vivo pharmacokinetics of BSTMF were determined for the first time. The strong affinity of folic acid (FA) for folate receptors allows BSTMF to enter cells via FA receptor-mediated endocytosis. The particle size of the prepared BSTMF was 188.5 ± 2.25 nm, and its zeta potential was -20.19 ± 2.01 mV, an encapsulation efficiency of 90.31 ± 3.15 %, and a drug release rate of 76.70 ± 2.10 % for 48 h. The surface architecture of BSTMF was identified using transmission electron microscopy (TEM) and Atomic force microscopy (AFM). Cell-line studies demonstrated that BSTMF substantially lowered the viability of Hep G2 cells compared to BST and bosutinib-loaded cubosomes (BSTF). BSTMF demonstrated an elevated BST concentration in tumour tissue than in other organs and also displayed superior pharmacokinetics, implying that they hold potential against hepatic cancers. This is the first study to show that BSTMF may be effective against liver cancer by targeting folate receptors and triggering SrC/FAK-dependent apoptotic pathways. Multiple parameters demonstrated that BSTMF enhanced anticancer targeting, therapeutic efficacy, and safety in NDEA-induced hepatocellular carcinoma.


Assuntos
Compostos de Anilina , Carcinoma Hepatocelular , Neoplasias Hepáticas , Nanopartículas , Nitrilas , Quinolinas , Humanos , Carcinoma Hepatocelular/tratamento farmacológico , Ácido Fólico , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/patologia , Linhagem Celular Tumoral , Tamanho da Partícula
3.
Int J Biol Macromol ; 263(Pt 2): 130517, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38423444

RESUMO

Orally targeted delivery systems have attracted ample interest in colorectal cancer management. In this investigation, we developed Inositol hexaphosphate (IHP) loaded Tripolyphosphate (Tr) crosslinked Pectin (Pe) Chitosan (Ch) nanoparticles (IHP@Tr*Pe-Ch-NPs) and modified them with l-Carnitine (CE) (CE-IHP@Tr*Pe-Ch-NPs) to improve uptake in colon cells. The formulated CE-IHP@Tr*Pe-Ch-NPs displayed a monodisperse distribution with 219.3 ± 5.5 nm diameter and 30.17 mV surface charge. Cell-line studies revealed that CE-IHP@Tr*Pe-Ch-NPs exhibited excellent biocompatibility in J774.2 and decreased cell viability in DLD-1, HT-29, and MCF7 cell lines. More cell internalization was seen in HT-29 and MCF7 due to overexpression of the OCTN2 and ATB0,+ transporter (CE transporters) compared to DLD-1. The cell cycle profile, reactive oxygen species, apoptosis, and mitochondrial membrane potential assays were performed to explore the chemo-preventive mechanism of CE-IHP@Tr*Pe-Ch-NPs. Moreover, the in-silico docking studies revealed enhanced interactive behavior of CE-IHP@Tr*Pe-Ch-NPs, thereby proving their targeting ability. All the findings suggested that CE-IHP@Tr*Pe-Ch-NPs could be a promising drug delivery approach for colon cancer targeting.


Assuntos
Quitosana , Nanopartículas , Humanos , Ácido Fítico , Pectinas/farmacologia , Carnitina , Células MCF-7 , Colo , Portadores de Fármacos
4.
Int J Biol Macromol ; 256(Pt 2): 127964, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37951423

RESUMO

Doxorubicin is a powerful chemotherapy medicine that is frequently used to treat cancer, but because of its extremely destructive side effects on other healthy cells, its applications have been severely constrained. With the aim of using lower therapeutic doses of doxorubicin while maintaining the same anti-cancerous activity as those of higher doses, the present study designs nano-encapsulation of doxorubicin by acrylamide grafted melanin as core and acrylic acid grafted flax seed gum as shell (DOX@AAM-g-ML/AA-g-FSG-NPs) for studies in-vivo and in-vitro anticancer activity. For biological studies, the cytotoxicity of DOX@AAM-g-ML/AA-g-FSG-NPs was examined on a cancerous human cell line (HCT-15) and it was observed that DOX@AAM-g-ML/AA-g-FSG-NPs exhibited very high toxicity towards HCT-15. In-vivo investigation in colon cancer-inflicted rat model also showed that DOX@AAM-g-ML/AA-g-FSG-NPs showed better anticancer activity against cancerous cells as compared to free doxorubicin. The drug release behavior of DOX@GML-GFS-NPs was studied at several pH and maximum drug release (95 %) was recorded at pH -7.2, and kinetic data of drug release was follows the Higuchi (R2 = 0.9706) kinetic model. Our study is focussed on reducing the side effects of doxorubicin by its nano-encapsulation in acrylamide grafted melanin as core and acrylic acid grafted flax seed gum that will also enhance its efficiency.


Assuntos
Acrilatos , Linho , Nanopartículas , Neoplasias , Ratos , Humanos , Animais , Melaninas , Nanopartículas/uso terapêutico , Doxorrubicina/farmacologia , Doxorrubicina/uso terapêutico , Neoplasias/tratamento farmacológico , Acrilamidas , Portadores de Fármacos , Sistemas de Liberação de Medicamentos
5.
Can J Physiol Pharmacol ; 102(5): 342-360, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38118126

RESUMO

Sarcopenia is a musculoskeletal disease that reduces muscle mass and strength in older individuals. The study investigates the effects of azilsartan (AZL) on skeletal muscle loss in natural sarcopenic rats. Male Sprague-Dawley rats aged 4-6 months and 18-21 months were selected as young-matched control and natural-aged (sarcopenic) rats, respectively. Rats were allocated into young and old control (YC and OC) and young and old AZL treatment (YT and OT) groups, which received vehicles and AZL (8 mg/kg, orally) for 6 weeks. Rats were then sacrificed after muscle function analysis. Serum and gastrocnemius (GN) muscles were isolated for further endpoints. AZL significantly improved muscle grip strength and antioxidant levels in sarcopenic rats. AZL also restored the levels of insulin, testosterone, and muscle biomarkers such as myostatin and creatinine kinase in sarcopenic rats. Furthermore, AZL treatment improved the cellular and ultrastructure of GN muscle and prevented the shift of type II (glycolytic) myofibers to type I (oxidative) myofibers. The results showed that AZL intervention restored protein synthesis in natural sarcopenic rats by increasing p-Akt-1 and decreasing muscle RING-finger protein-1 and tumor necrosis factor alpha immunoexpressions. In conclusion, the present findings showed that AZL could be an effective intervention in treating age-related muscle impairments.


Assuntos
Envelhecimento , Benzimidazóis , Fibras Musculares de Contração Rápida , Fibras Musculares de Contração Lenta , Oxidiazóis , Ratos Sprague-Dawley , Sarcopenia , Animais , Sarcopenia/prevenção & controle , Sarcopenia/metabolismo , Sarcopenia/tratamento farmacológico , Sarcopenia/patologia , Masculino , Oxidiazóis/farmacologia , Oxidiazóis/uso terapêutico , Envelhecimento/efeitos dos fármacos , Ratos , Benzimidazóis/farmacologia , Benzimidazóis/uso terapêutico , Fibras Musculares de Contração Rápida/efeitos dos fármacos , Fibras Musculares de Contração Rápida/metabolismo , Fibras Musculares de Contração Rápida/patologia , Fibras Musculares de Contração Lenta/efeitos dos fármacos , Fibras Musculares de Contração Lenta/metabolismo , Fibras Musculares de Contração Lenta/patologia , Força Muscular/efeitos dos fármacos , Músculo Esquelético/efeitos dos fármacos , Músculo Esquelético/metabolismo , Músculo Esquelético/patologia , Proteínas Proto-Oncogênicas c-akt/metabolismo , Miostatina/metabolismo , Antioxidantes/farmacologia
6.
Curr Pharm Des ; 29(40): 3221-3239, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37584354

RESUMO

Infected wounds that do not heal are a worldwide problem that is worsening, with more people dying and more money being spent on care. For any disease to be managed effectively, its root cause must be addressed. Effective wound care becomes a bigger problem when various traditional wound healing methods and products may not only fail to promote good healing. Still, it may also hinder the healing process, causing wounds to stay open longer. Progress in tissue regeneration has led to developing three-dimensional scaffolds (3D) or constructs that can be leveraged to facilitate cell growth and regeneration while preventing infection and accelerating wound healing. Tissue regeneration uses natural and fabricated biomaterials that encourage the growth of tissues or organs. Even though the clinical need is urgent, the demand for polymer-based therapeutic techniques for skin tissue abnormalities has grown quickly. Hydrogel scaffolds have become one of the most imperative 3D cross-linked scaffolds for tissue regeneration because they can hold water perfectly and are porous, biocompatible, biodegradable, and biomimetic. For damaged organs or tissues to heal well, the porosity topography of the natural extracellular matrix (ECM) should be imitated. This review details the scaffolds that heal wounds and helps skin tissue to develop. After a brief overview of the bioactive and drug-loaded polymeric hydrogels, the discussion moves on to how the scaffolds are made and what they are made of. It highlights the present uses of in vitro and in-vivo employed biomimetic scaffolds. The prospects of how well bioactiveloaded hydrogels heal wounds and how nanotechnology assists in healing and regeneration have been discussed.


Assuntos
Biomimética , Alicerces Teciduais , Humanos , Cicatrização , Polímeros/farmacologia , Hidrogéis/farmacologia
7.
Arch Gerontol Geriatr ; 112: 105025, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37062187

RESUMO

An association between the loss of skeletal muscle mass and obesity in the geriatric population has been identified as a disease known as sarcopenic obesity. Therefore, therapeutic/preventive interventions are needed to ameliorate sarcopenia. The present study investigates the effect of azilsartan (AZL) on skeletal muscle loss in High-Fat Diet (HFD)-induced sarcopenic obese (SO) rats. Four- and fourteen-months male Sprague Dawley rats were used and randomized in control and azilsartan treatment. 14 months animals were fed with HFD for four months and labeled as HFD-fed SO rats. Young & old rats received 0.5% carboxymethyl cellulose as a vehicle/AZL (8 mg/kg, per oral) treatment for six weeks. Grip strength and body composition analysis were performed after the last dose of AZL. Serum and gastrocnemius (GN)muscles were collected after animal sacrifice. AZL treatment significantly increased lean muscle mass, grip strength, myofibrillar protein, and antioxidant (superoxide dismutase & nitric oxide) levels in SO rats. AZL also restored the muscle biomarkers (creatine kinase, myostatin & testosterone), and insulin levels. AZL improves cellular, and ultracellular muscle structure and prevents type I to type II myofiber transitions in SO rats. Further, immunohistochemistry results showed increased expressions of pAkt and reduced expression of MuRF-1 and TNF-α exhibiting that AZL intervention could decrease protein degradation in SO rats. In conclusion, present results showed that AZL significantly increased lean mass, and restored muscle biomarkers, and muscle architecture. Taken together, the aforementioned findings suggest that azilsartan could be a possible therapeutic approach to reduce muscle wasting in sarcopenic obesity.


Assuntos
Resistência à Insulina , Sarcopenia , Idoso , Ratos , Masculino , Humanos , Animais , Sarcopenia/tratamento farmacológico , Sarcopenia/etiologia , Sarcopenia/metabolismo , Proteínas Proto-Oncogênicas c-akt/metabolismo , Dieta Hiperlipídica/efeitos adversos , Ratos Sprague-Dawley , Músculo Esquelético/metabolismo , Obesidade/complicações , Obesidade/tratamento farmacológico , Obesidade/metabolismo , Resistência à Insulina/fisiologia
8.
Int J Pharm ; 639: 122937, 2023 May 25.
Artigo em Inglês | MEDLINE | ID: mdl-37068717

RESUMO

Polysaccharide-based nanoparticles (NPs) such as pectin/ chitosan (PN/CN) had always been of greatest interest because of their excellent solubility, biocompatibility, and higher suitability for oral drug delivery. This study employed blending-crosslinking of polymers (PN&CN) followed by emulsification-solvent evaporation to prepare and compare two sets of PEGylated NPs to deliver phytic acid (IP6) to colon orally as it has potential to manage colon cancer but fails to reach colon when ingested in pure form. The first set was crosslinked with Glutaraldehyde (GE) (GE*PN-CN-NPs) while the second set was crosslinked with sodium tripolyphosphate (TPP) (TPP*PN-CN-NPs). IP6-loaded-GE/TPP*PN-CN-NPs were optimized using a central composite design. Developed TPP*PN-CN-NPs had a smaller size (210.6 ± 7.93 nm) than GE*PN-CN-NPs (557.2 ± 5.027 nm). Prepared NPs showed <12% IP6 release at pH 1.2 whereas >80% release was observed at pH 7.4. Further, NPs were explored for cytocompatibility in J774.2 cell lines, cytotoxicity, and cellular uptake in HT-29 and DLD-1 cell lines. While exhibiting substantial cytotoxicity and cellular uptake in HT-29 and DLD-1, the NPs were deemedsafe in J774.2. The PEGylated-TPP*PN-CN-NPs showed time-dependent uptake in J774.2 cell lines. Conclusively, the employed NP development method successfully delivered IP6 to colon and may also open avenues for the oral delivery of other drugs to colon.


Assuntos
Quitosana , Nanopartículas , Ácido Fítico , Pectinas , Colo , Polietilenoglicóis , Portadores de Fármacos
10.
J Microencapsul ; 40(4): 263-278, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36989347

RESUMO

The purpose of this study was to evaluate the drug delivery and therapeutic potential of berberine (Br) loaded nanoformulation in rheumatoid arthritis (RA)-induced animal model. The Br-loaded NLCs (nanostructured lipid carriers) were prepared employing melt-emulsification process, and optimised through Box-Behnken design. The prepared NLCs were assessed for in-vitro and in-vivo evaluations. The optimised NLCs exhibited a mean diameter of 180.2 ± 0.31 nm with 88.32 ± 2.43% entrapment efficiency. An enhanced anti-arthritic activity with reduced arthritic scores to 0.66 ± 0.51, reduction in ankle diameter to 5.80 ± 0.27 mm, decline in paw withdrawal timing, and improvements in walking behaviour were observed in the Br-NLCs treated group. The radiographic images revealed a reduction in bone and cartilage deformation. The Br-NLCs showed promising results in the management of RA disease, can be developed as an efficient delivery system at commercial levels, and may be explored for clinical application after suitable experiments in the future.


Assuntos
Artrite Reumatoide , Berberina , Nanoestruturas , Animais , Portadores de Fármacos/uso terapêutico , Berberina/farmacologia , Berberina/uso terapêutico , Sistemas de Liberação de Medicamentos , Artrite Reumatoide/tratamento farmacológico , Modelos Animais , Lipídeos , Tamanho da Partícula
11.
J Liposome Res ; 33(2): 154-169, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35930249

RESUMO

Some breast cancers are caused by hormonal imbalances, such as estrogen and progesterone. These hormones play a function in directing the growth of cancer cells. The hormone receptors in hormone receptor-positive breast cancer lead breast cells to proliferate out of control. Cancer therapy such as hormonal, targeted, radiation is still unsatisfactory because of these challenges namely multiple drug resistance (MDR), off-targeting, severe adverse effects. A novel aromatase inhibitor exemestane (Exe) exhibits promising therapy in breast cancer. This study aims to develop and optimize Exe-loaded lipid nanocapsules (LNCs) by using DSPC, PF68 and olive oil as lipid, surfactant and oil phase, respectively and to characterize the same. The prepared nanocapsules were investigated via in vitro cell culture and in vivo animal models. The LNCs exhibited cytotoxicity in MCF-7 cell lines and enhanced anti-cancer activity and reduced cardiotoxicity in DMBA-induced animal model when compared to the drug. Additionally, in vivo pharmacokinetics revealed a 4.2-fold increased oral bioavailability when compared with Exe suspension. This study demonstrated that oral administration of Exe-loaded LNCs holds promise for the antiestrogenic activity of exemestane in breast cancer.


Assuntos
Nanocápsulas , Neoplasias , Animais , Lipossomos , Androstadienos/farmacologia , Androstadienos/uso terapêutico , Lipídeos , Neoplasias/tratamento farmacológico
12.
Drug Deliv Transl Res ; 13(2): 627-641, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-35963927

RESUMO

Rheumatoid arthritis (RA) is a joint ailment with multi-factorial immune-mediated degenerative pathogenesis, including genetic and environmental defects. Resistance to disease-modifying anti-rheumatic drugs (DMARDs) happens due to excessive drug efflux over time, rendering the concentration insufficient to elicit a response. Thymoquinone (TQ) is a quinone-based phenolic compound with antioxidant and anti-inflammatory activities that downregulate numerous pro-inflammatory cytokines. However, its pharmaceutical importance and therapeutic utility are underexplored due to intrinsic physicochemical characteristics such as inadequate biological stability, short half-life, low hydrophilicity, and less systemic availability. Tamanu oil-stabilised nanostructured lipid carriers (TQ-NLCs) were prepared and optimised using Box-Behnken design (BBD) with the size of 153.9 ± 0.52 nm and surface charge of -30.71 mV. The % entrapment efficiency and drug content were found to be 84.6 ± 0.50% and 14.75 ± 0.52%, respectively. Furthermore, the TQ-loaded NLCs (TQ-NLCs) assayed for skin permeation for transdermal delivery which significantly (p < 0.05) increased skin enhancement ratio 14.6 times compared to the aqueous solution of TQ. Tamanu oil displayed the synergistic anti-inflammatory potential with TQ in comparison to pure TQ, as evidenced against carrageenan (CRG)-induced paw oedema model and Freund's adjuvant-induced arthritic model. The arthritic and X-ray scores significantly (p < 0.05) reduced in TQ-NLCs and standard formulation-treated groups. Moreover, serum pro-inflammatory marker TNF-α and IL-6 levels were also significantly (p < 0.05) reduced in TQ-NLCs gel-treated group compared to the arthritic control group.


Assuntos
Antirreumáticos , Artrite Reumatoide , Anti-Inflamatórios/farmacologia , Artrite Reumatoide/tratamento farmacológico , Regulação para Baixo , Portadores de Fármacos/química , Interleucina-6 , Quinonas/uso terapêutico , Fator de Necrose Tumoral alfa/metabolismo , Animais
14.
Nanomedicine (Lond) ; 17(24): 1819-1831, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-36136373

RESUMO

Aim: To assess the targeting ability of hybrid nanosystems functionalized with folate. It also aimed to reduce stomach intolerance by substituting the oral route for parenteral delivery. Method: The nanosystems, prepared by nanoprecipitation technique, utilized a one-step method to prepare nanoparticles followed by surface functionalization through adsorption. The prepared nanosystems underwent physical characterization, in vitro and in vivo evaluations. Result: The nanosystems were effective in targeting the alveolar macrophages. Ethionamide was released from the formulation over 5 days. Fourier-transform infrared results proved the structural characteristics, and the positive charge further improved the targeting efficacy on the functionalized system. Conclusion: The hybrid formulation improved the release characteristics. Reduction in dosing frequency due to prolonged release improves compliance with the dosage regimen.


Assuntos
Quitosana , Nanopartículas , Etionamida , Macrófagos Alveolares , Ácido Fólico/química , Transporte Biológico , Nanopartículas/química , Quitosana/química , Espectroscopia de Infravermelho com Transformada de Fourier , Portadores de Fármacos/química , Sistemas de Liberação de Medicamentos
15.
Colloids Surf B Biointerfaces ; 218: 112763, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35994989

RESUMO

This study was designed to create surface-functionalized bosutinib liposomes that could be used for the management of estrogen-positive cancers. The novelty of this work was the anti-cancer activity of bosutinib-loaded liposomes (Bos-LPs) in estrogen-positive cancer via estrogen response elements, responsible for the malignancy of cancer cells. Biotin effectively delivers active moiety to tumor tissues because it interacts with the biotin receptor and operates through the Sodium-dependent multivitamin transporters (SMVT) transporter. The prepared liposomes had a 257.73 ± 4.50 nm particle size, - 28.07 ± 5.81 mV zeta potential, 87.78 ± 1.16 % encapsulation efficiency and 85.56 ± 0.95 % drug release for 48 h. The surface architecture of biotin-modified bosutinib-loaded liposomes (b-Bos-LPs) was confirmed using scanning electron and transmission electron microscopies. In-vitro experiments revealed that b-Bos-LPs outperformed Bos and Bos-LPs in terms of significantly reduced cell viability in MCF-7 cells. According to biodistribution and pharmacokinetic studies, b-Bos-LPs have a higher Bos concentration in tumor tissues as compared to the other organs and also possess better pharmacokinetic activity, indicating that they can be used to treat carcinogen-induced estrogen-positive cancers. This is the first study to show that b-Bos-LPs can display activity against estrogen-positive cancer via biotin targeting. As evidenced by various parameters, b-Bos-LPs showed improved anticancer targeting, therapeutic safety and efficacy in carcinogen-induced estrogen-positive cancer. The receptor protein estrogen, which is primarily responsible for this cancer was downregulated by b-Bos-LPs in an immunoblotting assay. The results showed that biotinylated distearoylphosphatidylcholine (DSPC) augmented LPs loaded with Bosutinib can cause apoptosis in estrogen-positive breast cancer and be an effective way to treat estrogen-positive cancer.


Assuntos
Compostos de Anilina , Neoplasias da Mama , Lipossomos , Nitrilas , Quinolinas , Compostos de Anilina/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Linhagem Celular Tumoral , Sistemas de Liberação de Medicamentos , Estrogênios/metabolismo , Feminino , Humanos , Nitrilas/uso terapêutico , Tamanho da Partícula , Quinolinas/uso terapêutico
16.
Drug Deliv Transl Res ; 12(12): 3047-3062, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35499714

RESUMO

Limited targeted therapies are available for triple-negative breast cancer (TNBC). Thus, the current research focused on developing a targeted protein nanoparticle for TNBC. First, the doxorubicin hydrochloride (Dox)-loaded genipin-crosslinked whey protein nanoparticles (WD) were prepared and optimised by the QbD method using BBD. The hydrodynamic diameter of WD was found to be 364.38 ± 49.23 nm, zeta potential -27.59 ± 1.038 mV, entrapment 63.03 ± 3.625% and Dox loading was found to be 1.419 ± 0.422%. The drug recovery after 18 months of storage was 69%. Then, it was incubated with NAC to obtain modified WD (CyWD). WD followed first-order release kinetics, whereas CyWD followed the Higuchi model. Hemagglutination and hemolysis were not found qualitatively in WD and CyWD. Upon injecting the nanoformulations to 4T1-induced mice, the highest efficacy was found to be in CyWD followed by WD and Dox injection. Upon histopathological observance, it was found that the CyWD group gave the most significant damage to the 4T1 tumour tissue. Thus, NAC-modified protein nanoparticles carrying chemotherapeutic agents can be an excellent targeted therapeutic system against TNBC.


Assuntos
Nanopartículas , Neoplasias de Mama Triplo Negativas , Humanos , Camundongos , Animais , Doxorrubicina/farmacologia , Neoplasias de Mama Triplo Negativas/tratamento farmacológico , Neoplasias de Mama Triplo Negativas/metabolismo , Proteínas do Soro do Leite/uso terapêutico , Acetilcisteína , Linhagem Celular Tumoral
17.
Int J Pharm ; 622: 121848, 2022 Jun 25.
Artigo em Inglês | MEDLINE | ID: mdl-35613653

RESUMO

This study aimed at the development of hyaluronic acid-functionalised imatinib mesylate cubosomes (HA-IM-CBs) that might be useful in CD44 targeting against hepatic cancer. The HA-IM-CBs had a 130.7 ±â€¯2.92 nm particle size, -31.40 ±â€¯2.76 mV zeta potential, and 76.14 ±â€¯2.69% release. The architecture of HA-IM-CBs was confirmed using HR-TEM and AFM. When compared to plain IM and IM-CBs, in vitro experiments revealed that HA-IM-CBs outperformed by significantly reducing cell viability. DAPI staining and ROS corroborated the apoptotic effects. Biodistribution and Pharmacokinetics studies showedthat HA-IM-CBs exhibit a higher drug concentration in tumour tissue and better pharmacokinetic activity. This is the first study to show that HA-IM-CBs had CD44 targeting activity against HCC. CD44 regulates apoptosis via Bcl-2 family proteins and caspases, which interact with HA. Higher levels of e-NOS, BAD, BAX, and Cyt C and lower expressions of Bcl-xl, i-NOS, and Bcl-2 demonstrated the anti-HCC potential of HA-IM-CBs in qrt-PCR investigations. The remarkable therapeutic potential of HA-IM-CBs began with substantial stimulation of CD44 regulated caspase-mediated mitochondrial apoptotic pathway, accountable for their anti-HCC activity. The perturbed metabolites are restored to acceptable levels as indicated by metabolomic studies (1H NMR). Interestingly, the antineoplastic effect of HA-IM-CBs was proven to be potentially valuable against HCC.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Carcinoma Hepatocelular/tratamento farmacológico , Linhagem Celular Tumoral , Sistemas de Liberação de Medicamentos , Humanos , Receptores de Hialuronatos/metabolismo , Ácido Hialurônico/química , Mesilato de Imatinib/farmacologia , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/patologia , Proteínas Proto-Oncogênicas c-bcl-2 , Distribuição Tecidual
19.
Arch Physiol Biochem ; 128(2): 547-557, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31852265

RESUMO

Present study is aimed at transdermal delivery of colchicine-loaded chitosan nanoparticles. The nanoformulations were prepared utilising spontaneous emulsification method and optimised through 23 factorial designs. The optimised formulation (CHNP-OPT) displayed an average particle size of 294 ± 3.75 nm, entrapment efficiency 92.89 ± 1.1% and drug content 83.45 ± 2.5%, respectively. In vitro release study demonstrated 89.34 ± 2.90% release over a period of 24 h. Further, CHNP-OPT incorporated into HPMC-E4M (hydroxypropyl methylcellulose) to form transdermal gel. CHNPgel displayed 74.65 ± 1.90% permeation and stability over a period of 90 days. The anti-gout potential of CHNPgel formulation was evaluated in vivo against monosodium urate (MSU) crystal-induced gout in animal model. There was significant reduction in uric acid level, during MSU administration, when compared with the conventional gel of colchicine. The enhanced therapeutic potential was witnessed through X-ray. The study revealed that colchicine-loaded CHNPgel proved their supremacy over plain colchicine and can be an efficient delivery system for gout treatment.


Assuntos
Quitosana , Gota , Nanopartículas , Animais , Quitosana/uso terapêutico , Colchicina/uso terapêutico , Modelos Animais de Doenças , Gota/induzido quimicamente , Gota/tratamento farmacológico , Ácido Úrico
20.
Int J Nanomedicine ; 17: 6843-6859, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36605559

RESUMO

Introduction: Foot ulceration is one of the most severe and debilitating complications of diabetes, which leads to the cause of non-traumatic lower-extremity amputation in 15-24% of affected individuals. The healing of diabetic foot (DF) is a significant therapeutic problem due to complications from the multifactorial healing process. Electrospun nanofibrous scaffold loaded with various wound dressing materials has excellent wound healing properties due to its multifunctional action. Purpose: This work aimed to develop and characterize chitosan (CS)-polyvinyl alcohol (PVA) blended electrospun multifunctional nanofiber loaded with curcumin (CUR) and zinc oxide (ZnO) to accelerate diabetic wound healing in STZ-induced diabetic rats. Results: In-vitro characterization results revealed that nanofiber was fabricated successfully using the electrospinning technique. SEM results confirmed the smooth surface with web-like fiber nanostructure diameter ranging from 200 - 250 nm. An in-vitro release study confirmed the sustained release of CUR and ZnO for a prolonged time. In-vitro cell-line studies demonstrated significantly low cytotoxicity of nanofiber in HaCaT cells. Anti-bacterial studies demonstrated good anti-bacterial and anti-biofilm activities of nanofiber. In-vivo animal studies demonstrated an excellent wound-healing efficiency of the nanofibers in STZ-induced diabetic rats. Furthermore, the ELISA assay revealed that the optimized nanofiber membrane terminated the inflammatory phases successfully by downregulating the pro-inflammatory cytokines (TNF-α, MMP-2, and MMP-9) in wound healing. In-vitro and in-vivo studies conclude that the developed nanofiber loaded with bioactive material can promote diabetic wound healing efficiently via multifunction action such as the sustained release of bioactive molecules for a prolonged time of duration, proving anti-bacterial/anti-biofilm properties and acceleration of cell migration and proliferation process during the wound healing. Discussion: CUR-ZnO electrospun nanofibers could be a promising drug delivery platform with the potential to be scaled up to treat diabetic foot ulcers effectively.


Assuntos
Curcumina , Diabetes Mellitus Experimental , Pé Diabético , Nanofibras , Óxido de Zinco , Animais , Ratos , Antibacterianos/química , Bactérias , Curcumina/farmacologia , Preparações de Ação Retardada/farmacologia , Diabetes Mellitus Experimental/tratamento farmacológico , Pé Diabético/tratamento farmacológico , Nanofibras/química , Cicatrização , Óxido de Zinco/farmacologia , Óxido de Zinco/química , Humanos , Células HaCaT
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