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Use of paclitaxel carried in solid lipid nanoparticles to prevent peritoneal fibrosis in rats. PLoS One 2022; 17:e0268197. [PMID: 35522621 PMCID: PMC9075628 DOI: 10.1371/journal.pone.0268197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 04/24/2022] [Indexed: 11/24/2022] Open
Abstract
Background Progressive fibrous thickening of peritoneal membrane (PM) is a major complication of long-term peritoneal dialysis. TGF-β/SMAD pathway activation, inflammation and neoangiogenesis have an important role in PM changes induced by peritoneal dialysis. Here, we investigated the effects of paclitaxel (PTX) carried in lipid core nanoparticles (LDE) on the development of peritoneal fibrosis (PF) in rats. Methods To induce PF, 21 male Wistar rats (300-350g) were injected with chlorhexidine gluconate for 15 consecutive days and randomly assigned to three groups: 1)PF, n = 5: no treatment; 2)LDE, n = 8: treated with LDE only, 3/3 days during 15 days; 3)LDE-PTX, n = 8: treated with PTX (4mg/kg) associated with LDE, 3/3 days during 15 days. A Control group without PF induction (n = 5) was designed, received saline solution, 3/3 days. Peritoneum function tests were performed, and anterior abdominal wall samples of the PM were collected for analyses of peritoneal thickness, immunohistochemitry, and gene expression. Results LDE-PTX treatment preserved the membrane function, maintaining the ultrafiltration rate and mass transfer of glucose at normal levels. LDE-PTX also prevented PM thickening induced by chlorhexidine gluconate injections. LDE-PTX treatment reduced the number of myofibroblasts infiltrating PM and inhibited the cell proliferation. Gene expression of fibronectin, FSP-1, VEGF, TGF-β, and SMAD3 were reduced by LDE-PTX. Conclusions LDE-PTX was effective to prevent development of PF and preserve the PM filtration capacity in this rat model, with clear-cut actions on pro-fibrotic mechanisms. Thus, LDE-PTX can be candidate for future clinical trials as adjuvant to peritoneal dialysis to prevent PF development, since this preparation is devoid of toxicity as shown previously.
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Adityan S, Tran M, Bhavsar C, Wu SY. Nano-therapeutics for modulating the tumour microenvironment: Design, development, and clinical translation. J Control Release 2020; 327:512-532. [DOI: 10.1016/j.jconrel.2020.08.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 08/08/2020] [Accepted: 08/10/2020] [Indexed: 12/12/2022]
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Firrman J, Liu L, Tanes C, Bittinger K, Mahalak K, Rinaldi W. Metagenomic assessment of the Cebus apella gut microbiota. Am J Primatol 2019; 81:e23023. [PMID: 31240754 DOI: 10.1002/ajp.23023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 05/13/2019] [Accepted: 05/27/2019] [Indexed: 12/19/2022]
Abstract
Cebus Apella (C. apella) is a species of Nonhuman Primate (NHP) used for biomedical research because it is phylogenetically similar and shares anatomical commonalities with humans. Here, the gut microbiota of three C. apella were examined in the different regions of the intestinal tract. Using metagenomics, the gut microbiota associated with the luminal content and mucus layer for each intestinal region was identified, and functionality was investigated by quantifying the levels of short chain fatty acids (SCFAs) produced. The results of this study show a high degree of similarity in the intestinal communities among C. apella subjects, with multiple shared characteristics. First, the communities in the lumen were more phylogenetically diverse and rich compared to the mucus layer communities throughout the entire intestinal tract. The small intestine communities in the lumen displayed a higher Shannon diversity index compared to the colon communities. Second, all the communities were dominated by aero-tolerant taxa such as Streptococcus, Enterococcus, Abiotrophia, and Lactobacillus, although there was preferential colonization of specific taxa observed. Finally, the primary SCFA produced throughout the intestinal tract was acetic acid, with some propionic acid and butyric acid detected in the colon regions. The small intestine microbiota produced significantly less SCFAs compared to the communities in the colon. Collectively, these data provide an in-depth report on the composition, distribution, and SCFA production of the gut microbiota along the intestinal tract of the C. apella NHP animal model.
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Affiliation(s)
- Jenni Firrman
- United States Department of Agriculture, Dairy and Functional Foods Research Unit, Eastern Regional Research Center, Agricultural Research Service, Wyndmoor, Pennsylvania
| | - LinShu Liu
- United States Department of Agriculture, Dairy and Functional Foods Research Unit, Eastern Regional Research Center, Agricultural Research Service, Wyndmoor, Pennsylvania
| | - Ceylan Tanes
- Division of Gastroenterology, Hepatology, and Nutrition, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Kyle Bittinger
- Division of Gastroenterology, Hepatology, and Nutrition, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Karley Mahalak
- United States Department of Agriculture, Dairy and Functional Foods Research Unit, Eastern Regional Research Center, Agricultural Research Service, Wyndmoor, Pennsylvania
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Gomes FLT, Maranhão RC, Tavares ER, Carvalho PO, Higuchi ML, Mattos FR, Pitta FG, Hatab SA, Kalil-Filho R, Serrano CV. Regression of Atherosclerotic Plaques of Cholesterol-Fed Rabbits by Combined Chemotherapy With Paclitaxel and Methotrexate Carried in Lipid Core Nanoparticles. J Cardiovasc Pharmacol Ther 2018; 23:561-569. [PMID: 29779420 DOI: 10.1177/1074248418778836] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In previous studies, it was demonstrated that lipid core nanoparticles (LDE) resemble the low-density lipoprotein structure and carrying the antiproliferative agent paclitaxel (PTX) strongly reduced atherosclerosis lesions induced in rabbits by cholesterol feeding. Currently, the aim was to verify whether combining LDE-PTX treatment with methotrexate (MTX) associated with LDE (LDE-MTX) could accelerate the atherosclerosis regression attained with single LDE-PTX treatment, after withdrawing the cholesterol feeding. Thirty-eight rabbits were fed 1% cholesterol chow for 8 weeks. Six of these rabbits were then euthanized for analyses of the aorta (controls). In the remaining rabbits, cholesterol feeding was withdrawn, and those 32 animals were allocated to 3 groups submitted to different 8-week intravenous treatments, all once/week: LDE-PTX (n = 10; 4 mg/kg), LDE-PTX + LDE-MTX (n = 11; 4 mg/kg), and LDE-alone (n = 11). Rabbits were then euthanized and aortas were excised for morphometric, immunohistochemical, and gene expression analyses. After cholesterol feeding withdrawal, in comparison with LDE-alone group, both LDE-PTX and LDE-PTX + LDE-MTX treatments had the ability to increase the regression of plaque areas: -49% in LDE-PTX and -59% for LDE-PTX + LDE-MTX. However, only LDE-PTX + LDE-MTX treatment elicited reduction in the intima area, estimated in -57%. Macrophage presence in aortic lesions was reduced 48% by LDE-PTX and 43% by LDE-PTX + LDE-MTX treatment. Matrix metalloproteinase 9 was reduced by either LDE-PTX (74%) or LDE-PTX + LDE-MTX (78%). Tumor necrosis factor α gene expression was reduced 65% by LDE-PTX and 79% by LDE-PTX + LDE-MTX. In conclusion, treatment with LDE-PTX indeed accelerated plaque reduction after cholesterol feeding; LDE-PTX + LDE-MTX further increased this effect, without any observed toxicity. These results pave the way for the use of combined chemotherapy to achieve stronger effects on aggravated, highly inflamed atherosclerotic lesions.
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Affiliation(s)
- Fernando L T Gomes
- 1 Heart Institute (InCor) of the Medical School Hospital University of São Paulo, São Paulo, Brazil.,2 Hospital Cassiano Antônio de Moraes, Federal University of Espírito Santo, Espírito Santo, Brazil
| | - Raul C Maranhão
- 1 Heart Institute (InCor) of the Medical School Hospital University of São Paulo, São Paulo, Brazil.,3 Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Elaine R Tavares
- 1 Heart Institute (InCor) of the Medical School Hospital University of São Paulo, São Paulo, Brazil
| | - Priscila O Carvalho
- 1 Heart Institute (InCor) of the Medical School Hospital University of São Paulo, São Paulo, Brazil
| | - Maria L Higuchi
- 1 Heart Institute (InCor) of the Medical School Hospital University of São Paulo, São Paulo, Brazil
| | - Fernando R Mattos
- 1 Heart Institute (InCor) of the Medical School Hospital University of São Paulo, São Paulo, Brazil
| | - Fabio G Pitta
- 1 Heart Institute (InCor) of the Medical School Hospital University of São Paulo, São Paulo, Brazil
| | - Sergio A Hatab
- 2 Hospital Cassiano Antônio de Moraes, Federal University of Espírito Santo, Espírito Santo, Brazil
| | - Roberto Kalil-Filho
- 1 Heart Institute (InCor) of the Medical School Hospital University of São Paulo, São Paulo, Brazil
| | - Carlos V Serrano
- 1 Heart Institute (InCor) of the Medical School Hospital University of São Paulo, São Paulo, Brazil
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Xia Y, Guo M, Xu T, Li Y, Wang C, Lin Z, Zhao M, Zhu B. siRNA-loaded selenium nanoparticle modified with hyaluronic acid for enhanced hepatocellular carcinoma therapy. Int J Nanomedicine 2018; 13:1539-1552. [PMID: 29588583 PMCID: PMC5858822 DOI: 10.2147/ijn.s157519] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background Small interfering RNA (siRNA) as a new therapeutic modality holds promise for cancer treatment. However, the traditional viral carriers are prone to immunogenicity and risk of insertional mutagenesis. Methods In order to provide a tumor-targeted delivery carrier of siRNA in cancer therapy, the hyaluronic acid (HA)-selenium (Se)-polyethylenimine (PEI) nanoparticle (NP) was fabricated by decorating SeNP with HA as a tumor-targeting moiety and by linking the polycationic polymers polyethylenimine PEI onto the surface of SeNP. The siRNA was loaded to the surface of SeNP HA-Se-PEI via the electrostatic interaction between siRNA and PEI to prepare the functionalized SeNP HA-Se-PEI@siRNA. Results The HA-Se-PEI@siRNA was internalized into the HepG2 cell mainly in a clathrin-mediated endocytosis manner. Owing to the active tumor-targeted effect mediated by HA, HA-Se-PEI@siRNA achieved the obvious higher transfection efficiency, greater gene silencing ability, and stronger cytotoxicity in the HepG2 cell compared with the passive tumor-targeted NP Se-PEI@siRNA. The knockdown of hairy and enhancer of split 5 by HA-Se-PEI@siRNA induced the HepG2 cell cycle arrest at the G0/G1 phase and apoptosis. Furthermore, the treatment with HA-Se-PEI@siRNA resulted in greater antitumor efficacy compared with the Se-PEI@siRNA in vitro and in vivo. In addition, the HA-Se-PEI@siRNA was almost no toxic to the key organs of mice. Conclusion These findings provided an alternative therapeutic route for targeted cancer treatments.
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Affiliation(s)
- Yu Xia
- Virus Laboratory, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Min Guo
- Virus Laboratory, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Tiantian Xu
- Virus Laboratory, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Yinghua Li
- Virus Laboratory, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Changbing Wang
- Virus Laboratory, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Zhengfang Lin
- Virus Laboratory, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Mingqi Zhao
- Virus Laboratory, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Bing Zhu
- Virus Laboratory, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
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Graziani SR, Vital CG, Morikawa AT, Van Eyll BM, Fernandes Junior HJ, Kalil Filho R, Maranhão RC. Phase II study of paclitaxel associated with lipid core nanoparticles (LDE) as third-line treatment of patients with epithelial ovarian carcinoma. Med Oncol 2017; 34:151. [DOI: 10.1007/s12032-017-1009-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 07/19/2017] [Indexed: 11/29/2022]
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