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Shailendrakumar AM, Ghate VM, Kinra M, Lewis SA. Improved Oral Pharmacokinetics of Pentoxifylline with Palm Oil and Capmul® MCM Containing Self-Nano-Emulsifying Drug Delivery System. AAPS PharmSciTech 2020; 21:118. [PMID: 32318890 DOI: 10.1208/s12249-020-01644-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 02/24/2020] [Indexed: 12/30/2022] Open
Abstract
Pentoxifylline (PTX), an anti-hemorrhage drug used in the treatment of intermittent claudication, is extensively metabolized by the liver resulting in a reduction of the therapeutic levels within a short duration of time. Self-nano-emulsifying drug delivery system (SNEDDS) is well reported to enhance the bio-absorption of drugs by forming nano-sized globules upon contact with the biological fluids after oral administration. The present study aimed to formulate, characterize, and improve the oral bioavailability of PTX using SNEDDS. The formulated SNEDDS consisted of palm oil, Capmul® MCM, and Tween® 80 as oil, surfactant, and co-surfactant, respectively. The mixture design module under the umbrella of the design of experiments was used for the optimization of SNEDDS. The dynamic light-scattering technique was used to confirm the formation of nanoemulsion based on the globule size, in addition to the turbidity measurements. In vivo bioavailability studies were carried out on male Wistar rats. The pharmacokinetic parameters upon oral administration were calculated using the GastroPlus software. The optimized SNEDDS had a mean globule size of 165 nm with minimal turbidity in an aqueous medium. Bioavailability of PTX increased 1.5-folds (AUC = 1013.30 ng h/mL) as SNEDDS than the pure drug with an AUC of 673.10 ng h/mL. In conclusion, SNEDDS was seen to enhance the bioavailability of PTX and can be explored to effectively control the incidents of intermittent claudication.
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Kochar P, Nayak K, Thakkar S, Polaka S, Khunt D, Misra M. Exploring the potential of minoxidil tretinoin liposomal based hydrogel for topical delivery in the treatment of androgenic alopecia. Cutan Ocul Toxicol 2020; 39:43-53. [DOI: 10.1080/15569527.2019.1694032] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Pratiksha Kochar
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Gandhinagar, India
| | - Kritika Nayak
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Gandhinagar, India
| | - Shreya Thakkar
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Gandhinagar, India
| | - Suryanarayan Polaka
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Gandhinagar, India
| | - Dignesh Khunt
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Gandhinagar, India
| | - Manju Misra
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Gandhinagar, India
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Choudhury H, Maheshwari R, Pandey M, Tekade M, Gorain B, Tekade RK. Advanced nanoscale carrier-based approaches to overcome biopharmaceutical issues associated with anticancer drug ‘Etoposide’. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 106:110275. [DOI: 10.1016/j.msec.2019.110275] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 10/02/2019] [Accepted: 10/03/2019] [Indexed: 12/14/2022]
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Futakuchi M. Animal Model of Lung Metastasis of Hepatocellular Carcinoma: A Tool for the Development of Anti-Metastatic Therapeutics. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/jct.2013.42a051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Ukawala M, Chaudhari K, Rajyaguru T, Manjappa A, Murthy R, Gude R. Laminin receptor-targeted etoposide loaded polymeric micelles: a novel approach for the effective treatment of tumor metastasis. J Drug Target 2011; 20:55-66. [DOI: 10.3109/1061186x.2011.610799] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Date AA, Srivastava D, Nagarsenker MS, Mulherkar R, Panicker L, Aswal V, Hassan PA, Steiniger F, Thamm J, Fahr A. Lecithin-based novel cationic nanocarriers (LeciPlex) I: fabrication, characterization and evaluation. Nanomedicine (Lond) 2011; 6:1309-25. [DOI: 10.2217/nnm.11.38] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aims: In the present investigation, the feasibility of fabricating novel self-assembled cationic nanocarriers (LeciPlex) containing cetyltrimethylammonium bromide (CTAB) or didodecyldimethylammonium bromide (DDAB) and soybean lecithin using pharmaceutically acceptable biocompatible solvents such as 2-Pyrrolidone (Soluphor P®) and diethyleneglycol monoethyl ether (Transcutol®) was established. Materials & Methods: The interaction between DDAB/CTAB and soybean lecithin in the nanocarriers was confirmed by differential scanning calorimetry and in vitro antimicrobial studies. The positive charge on the nanocarriers was confirmed by zeta potential analysis. Results: Transmission electron microscopy analysis could not reveal sufficient information regarding the internal structure of the nanocarriers, whereas cryotransmission electron microscopy studies indicated that these novel nanocarriers have unilamellar structure. Small-angle neutron scattering studies confirmed interaction of cationic surfactant (DDAB) and lecithin in the nanocarriers and confirmed the presence of unilamellar nanostructures. Conclusion: Various hydrophobic drugs could be encapsulated in the CTAB/DDAB-based lecithin nanocarriers (CTAB–LeciPlex or DDAB–LeciPlex) irrespective of their difference in log p-values. In vitro antimicrobial studies on triclosan-loaded LeciPlex confirmed entrapment of triclosan in the nanocarriers. The ability of CTAB–LeciPlex and DDAB–LeciPlex to condense plasmid DNA was established using agarose gel electrophoresis. DDAB–LeciPlex could successfully transfect pDNA in HEK-293 cells indicating potential in gene delivery. Original submitted: 20/8/2010; Revised submitted: 14/12/2010
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Affiliation(s)
- Abhijit A Date
- Department of Pharmaceutics, Bombay College of Pharmacy, Kalina, Santacruz (East), Mumbai-400098, India
| | - Deepika Srivastava
- Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Navi Mumbai-410210, India
| | | | - Rita Mulherkar
- Advanced Centre for Treatment, Research & Education in Cancer (ACTREC), Tata Memorial Centre, Navi Mumbai-410210, India
| | - Lata Panicker
- Bhabha Atomic Research Center (BARC), Mumbai 400 085, India
| | - Vinod Aswal
- Bhabha Atomic Research Center (BARC), Mumbai 400 085, India
| | | | | | - Jana Thamm
- Friedrich-Schiller-University Jena, Germany
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Ukawala M, Rajyaguru T, Chaudhari K, Manjappa AS, Murthy RSR, Gude R. EILDV-conjugated, etoposide-loaded biodegradable polymeric micelles directing to tumor metastatic cells overexpressing α4β1 integrin. Cancer Nanotechnol 2011; 2:133-145. [PMID: 26069491 PMCID: PMC4451974 DOI: 10.1007/s12645-011-0023-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Accepted: 08/28/2011] [Indexed: 01/18/2023] Open
Abstract
In the present study, poly(ethylene glycol)-b-poly(ε-caprolactone) micelles loaded with etoposide (ETO) were formulated and further conjugated with pentapeptide Glu-Ile-Leu-Asp-Val (EILDV) to target α4β1 integrin receptor overexpressed on metastatic tumor cell. Using a distinct ratio of carboxyl-terminated poly(ethylene glycol)-block-poly(ε-caprolactone) (HOOC-PEG-b-PCL) to methoxy-poly(ethylene glycol)-block-poly(ε-caprolactone (CH3O-PEG-b-PCL) polymers, we formulated a series of micellar formulations having different surface densities of EILDV and observed optimum cellular uptake of micelles with 10% EILDV surface density by B16F10 cells. The cytotoxicity of EILDV-conjugated micelles was observed close to 1.5-fold higher than plain ETO after 72 h of drug incubation, demonstrating controlled release of drug inside the cell after enhanced intracellular uptake with the ability to selectively target cancer cells. In addition, EILDV-conjugated micelles inhibited the migration of B16F10 cells effectively compared with plain ETO and non-conjugated micellar formulations when cells were treated with equivalent cytotoxic concentration of the drug, i.e., IC25. B16F10 cells treated with EILDV-conjugated micelles showed a significant reduction in the attachment of cells to the substrate-coated plate compared with non-conjugated micellar formulations, implying retention of the biological activity of EILDV after coupling to micelles. Furthermore, the in vivo experimental metastasis assay conducted on C57BL/6 mice demonstrated significant activity of EIDLV-conjugated micelles in the reduction of pulmonary metastatic nodule formation in both pretreatment and post-treatment methods. In conclusion, EIDLV-conjugated micelles showed higher efficacy in the treatment of metastasis and would be a promising approach in the treatment of metastasis.
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Affiliation(s)
- Mukesh Ukawala
- />Centre for Post Graduate studies and Research, New Drug Delivery Systems Laboratory, Pharmacy Department, The M. S. University of Baroda, Vadodara, India
| | - Tushar Rajyaguru
- />Centre for Post Graduate studies and Research, New Drug Delivery Systems Laboratory, Pharmacy Department, The M. S. University of Baroda, Vadodara, India
| | - Kiran Chaudhari
- />Centre for Post Graduate studies and Research, New Drug Delivery Systems Laboratory, Pharmacy Department, The M. S. University of Baroda, Vadodara, India
| | - A. S. Manjappa
- />Centre for Post Graduate studies and Research, New Drug Delivery Systems Laboratory, Pharmacy Department, The M. S. University of Baroda, Vadodara, India
| | - R. S. R. Murthy
- />Centre for Post Graduate studies and Research, New Drug Delivery Systems Laboratory, Pharmacy Department, The M. S. University of Baroda, Vadodara, India
- />Center for Nanomedicine, ISF College of Pharmacy, Moga, Punjab India
| | - Rajiv Gude
- />Gude Lab, Tata Memorial Center, Advanced Center for Treatment Research and Education in Cancer (ACTREC), Cancer Research Institute, Navi Mumbai, India
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Sant VP, Nagarsenker MS, Rao SGA, Gude RP. Sterically stabilized etoposide liposomes: evaluation of antimetastatic activity and its potentiation by combination with sterically stabilized pentoxifylline liposomes in mice. Cancer Biother Radiopharm 2004; 18:811-7. [PMID: 14629829 DOI: 10.1089/108497803770418355] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Cytotoxic activity of chemotherapeutic agents can be enhanced by site-specific delivery or by combination with other less toxic agents. In the present study, enhancement in the antimetastatic activity of etoposide (ETP) by encapsulation in sterically stabilized liposomes was evaluated in the murine experimental B16F10 melanoma model. Further, potentiation of its antimetastatic activity by combination with pentoxifylline (PTX) solution or sterically stabilized PTX liposomes was evaluated in the same animal model. Upon intravenous administration, ETP solution and ETP liposomes inhibited pulmonary tumor nodule formation in a dose-dependent manner. Encapsulation of ETP in liposomes resulted in significant enhancement in its antimetastatic activity at doses of 0.5 mg/kg and 0.75 mg/kg as compared to ETP solution at similar doses. In combination therapy, the effect of sequence of administration of the drugs, ETP and PTX, was evaluated. Enhancement of antimetastatic activity of ETP solution when used in combination with PTX solution was effected by the sequence in which the solutions were administered. However, a combination of ETP liposomes and PTX liposomes led to potentiation of antimetastatic activity in a sequence-independent manner. The results indicate that antimetastatic activity of ETP is significantly enhanced by encapsulation in liposomes. Administration of ETP liposomes with PTX liposomes further potentiated the activity, suggesting the usefulness of this combination in clinical practice for reducing the dose-limiting toxic effects of ETP.
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Affiliation(s)
- Vinayak P Sant
- Department of Pharmaceutics, Bombay College of Pharmacy, Kalina, Mumbai, India
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Futakuchi M, Ogawa K, Tamano S, Takahashi S, Shirai T. Suppression of metastasis by nuclear factor kappaB inhibitors in an in vivo lung metastasis model of chemically induced hepatocellular carcinoma. Cancer Sci 2004; 95:18-24. [PMID: 14720322 PMCID: PMC11158446 DOI: 10.1111/j.1349-7006.2004.tb03165.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2003] [Revised: 11/19/2003] [Accepted: 11/19/2003] [Indexed: 12/30/2022] Open
Abstract
To evaluate the suppressive effects of nuclear factor kappa B (NF-kappaB) inhibitors on metastasis, three agents, pentoxifylline (PTX, 0.5% in diet), N-acetyl-L-cysteine (NAC, 0.5% in diet), and aspirin (ASP, 0.5% in diet) were applied in an in vivo highly metastatic rat hepatocellular carcinoma (HCC) model in F344 male rats. Administration of NF-kappaB inhibitors for 8 weeks after induction of highly metastatic HCC by sequential treatment with diethylnitrosamine and N-nitrosomorpholine did not cause any significant change in survival rate or body weight. The incidence of HCC was 100% at week 23, regardless of treatment with NF-kappaB inhibitors. PTX, NAC, and ASP did not exert any significant effect on the development or differentiation of HCCs, although PTX tended to decrease the multiplicity of HCC. Although no lung metastasis was observed in the rats killed at the end of the period of carcinogen exposure, lung metastasis was found in 100% of animals in all the groups at the end of the experiment. Multiplicity of lung metastasis was significantly decreased by PTX and NAC, whereas ASP was without significant influence. The size of metastatic nodules was also significantly reduced in the PTX treatment group. Furthermore, the inhibitory kappa-B (IkappaB) protein level, considered to be a marker for the degree of NF-kappaB transcription, was significantly suppressed by PTX. mRNA expression in HCC for vascular cell adhesion molecule-1 (VCAM-1), which is considered to play a key role in attachment of cancer cells to the endothelium, was significantly suppressed by PTX. Among the splicing variants of VEGF, VEGF-A120, VEGF-A144, VEGF-A164, and VEGF-A188, suppressed mRNA expression of VEGF-A188 appeared to be correlated with suppression of lung metastasis formation. In conclusion, the present study demonstrated that NF-kappaB inhibitors have the potential to inhibit lung metastasis from rat HCCs in vivo, and PTX is especially promising. Its mechanism of action may involve suppression of VCAM-1 and VEGF-A188 production.
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Affiliation(s)
- Mitsuru Futakuchi
- Department of Experimental Pathology and Tumor Biology, Graduate School of Medical Sciences, Nagoya City University, Mizuho-ku, Nagoya 467-8601, Japan.
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Literature alerts. J Microencapsul 2001; 18:685-92. [PMID: 11508773 DOI: 10.1080/02652040110060526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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