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Wang B, Guo L, Yan X, Hou F, Zhong L, Xu H. Dual-mode detection sensor based on nitrogen-doped carbon dots from pine needles for the determination of Fe 3+ and folic acid. Spectrochim Acta A Mol Biomol Spectrosc 2023; 285:121891. [PMID: 36152507 DOI: 10.1016/j.saa.2022.121891] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/19/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
In this study, nitrogen-doped carbon dots (N-CDs) from pine needles were obtained by one-step hydrothermal synthesis without any chemical reagents. The fluorescence quenching and absorbance enhancement of N-CDs occurred when Fe3+ and folic acid (FA) were added. Based on this, the dual-mode detection sensor by fluorescence and ultraviolet-visible (UV-Vis) spectrophotometry for the determination of Fe3+ and FA was established. Detected by the dual-mode detection sensor under the optimized condition, the linear range of Fe3+ was 0.1-540 μM and FA was 0.1-165 μM. At the same time, the two inputs "NOR" and "OR" logic gates are constructed successfully according to the dual-mode sensor signals. The proposed dual-mode detection sensor is simple, efficient and stable; it can be applied to determinate Fe3+ and FA in practical samples successfully and the results are satisfactory.
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Affiliation(s)
- Bingying Wang
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China
| | - Lijun Guo
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China
| | - Xiangtong Yan
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China
| | - Faju Hou
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China.
| | - Linlin Zhong
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, PR China
| | - Hui Xu
- Department of Material Chemistry, Huzhou College, Huzhou 313000, PR China.
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Huang K, Wu Y, Zhang Y, Youn JY, Cai H. Combination of folic acid with nifedipine is completely effective in attenuating aortic aneurysm formation as a novel oral medication. Redox Biol 2022; 58:102521. [PMID: 36459715 PMCID: PMC9713368 DOI: 10.1016/j.redox.2022.102521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/21/2022] [Accepted: 10/23/2022] [Indexed: 11/17/2022] Open
Abstract
Aortic aneurysms are prevalent and severe vascular diseases with high mortality from unpredicted ruptures, while the only treatment option is surgical correction of large aneurysms with considerable risk. We have shown that folic acid (FA) is highly effective in alleviating development of aneurysms although not sufficient to completely attenuate aneurysm formation. Here, we examined therapeutic effects on aneurysms of combining FA with Nifedipine as novel and potentially more effective oral medication. Oral administration with FA (15 mg/kg/day) significantly reduced incidence of AAA from 85.71% to 18.75% in Ang II-infused apolipoprotein E (apoE) null mice, while combination of FA with Nifedipine (1.5, 5.0 or 20 mg/kg/day) substantially and completely further reduced incidence of AAA to 12.5%, 11.76% and 0.00% respectively in a dose-dependent manner. The combinatory therapy substantially and completely further alleviated enlargement of abdominal aortas defined by ultrasound, vascular remodeling characterized by elastin degradation and adventitial hypertrophy, as well as aortic superoxide production and eNOS uncoupling activity also in a dose-dependent manner, with combination of FA with 20 mg/kg/day Nifedipine attenuating all of these features by 100% to control levels. Aortic NO and H4B bioavailabilities were also dose-dependently further improved by combining FA with Nifedipine. These data establish entirely innovative and robust therapeutic regime of FA combined with Nifedipine for the treatment of aortic aneurysms. The comminatory therapy can serve as a first-in-class and most effective oral medication for aortic aneurysms, which can be rapidly translated into clinical practice to revolutionize management of the devastating vascular diseases of aortic aneurysms known as silent killers.
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Affiliation(s)
- Kai Huang
- Division of Molecular Medicine, Department of Anesthesiology, Division of Cardiology, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Yusi Wu
- Division of Molecular Medicine, Department of Anesthesiology, Division of Cardiology, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Yixuan Zhang
- Division of Molecular Medicine, Department of Anesthesiology, Division of Cardiology, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Ji Youn Youn
- Division of Molecular Medicine, Department of Anesthesiology, Division of Cardiology, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Hua Cai
- Division of Molecular Medicine, Department of Anesthesiology, Division of Cardiology, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA.
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Amri A, Kessabi K, Bouraoui Z, Sakli S, Gharred T, Guerbej H, Messaoudi I, Jebali J. Effect of melatonin and folic acid supplementation on the growth performance, antioxidant status, and liver histology of the farmed gilthead sea bream (Sparus aurata L.) under standard rearing conditions. Fish Physiol Biochem 2020; 46:2265-2280. [PMID: 32978696 DOI: 10.1007/s10695-020-00879-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 09/15/2020] [Indexed: 06/11/2023]
Abstract
The present study aimed to investigate the effect of dietary of melatonin (MLT) and folic acid (FA) administrations on growth performance, antioxidant status, and liver histological structure of juvenile gilthead sea bream, Sparus aurata L. under standard rearing conditions. Four diets were considered: a basal diet considered a control and three diets supplemented with 40 mg/kg of melatonin (MLT), 2 mg/kg of folic acid (FA), and with the mixture of melatonin and folic acid (MLT + FA). Each diet was randomly allocated to triplicate groups of fish (mean initial weight was 2.99 ± 0.55 g) for 41 days. The obtained results clearly indicated that the melatonin-supplemented diet decreased significantly the growth performance parameters (final body weight, weight gain rate, and specific growth rate) and IGF-1 level of the gilthead sea bream, while the folic acid-supplemented diet has no significant effect on these parameters. The mixture supplementation of melatonin and folic acid has no significant effect on the growth parameters due to the possible interaction between melatonin and folic acid effects. Furthermore, fish fed with all experimental diets showed significantly higher superoxide dismutase activity (SOD) and protein sulfhydryl level (PSH) and lower lipid peroxidation level (TBARS) and catalase activity (CAT) which confirm their powerful antioxidant role. The acetylcholinesterase activity (ACHE) decreased in fish fed with all experimental diets. The underlying mechanisms of driving melatonin and folic acid to reduce acetylcholinesterase activity require further studies. The histological structure of liver of control S. aurata fish shows severe hepatic lipid accumulation in large vacuoles that diminished after dietary individual or mixture folic acid and melatonin supplementations over 41 days. This work proved that 2 mg/kg of dietary folic acid has a positive effect on the growth performance, oxidative stress defense, and hepatic lipid accumulation reduction in the gilthead sea bream fish. Under our experimental conditions, melatonin failed to improve the growth indexes WGR, SGR, and IGF-I. This study recommends the diet supplementation with a dose lower than 2 mg/kg of food due to the observed effects on tissue ACHE activity.
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Affiliation(s)
- Afef Amri
- Laboratory of Genetics Biodiversity and Valorization of Bio-resources (LR11ES41), Higher Institute of Biotechnology of Monastir, University of Monastir, Tahar Haded Street, B.P. n 74, 5000, 5000, Monastir, Tunisia
| | - Kaouthar Kessabi
- Laboratory of Genetics Biodiversity and Valorization of Bio-resources (LR11ES41), Higher Institute of Biotechnology of Monastir, University of Monastir, Tahar Haded Street, B.P. n 74, 5000, 5000, Monastir, Tunisia
| | - Zied Bouraoui
- National Institute of Sciences and Technologies of the Sea, Laboratory of Blue Biotechnology and Aquatic Bioproducts, 1002, Monastir, Tunis, Tunisia
| | - Sabrine Sakli
- Laboratory of Genetics Biodiversity and Valorization of Bio-resources (LR11ES41), Higher Institute of Biotechnology of Monastir, University of Monastir, Tahar Haded Street, B.P. n 74, 5000, 5000, Monastir, Tunisia
| | - Tahar Gharred
- Research Laboratory of Bioresources: Integrative Biology & Valorization (LR 14ES06), Higher Institute of Biotechnology of Monastir, Monastir, Tunisia
| | - Hamadi Guerbej
- National Institute of Sciences and Technologies of the Sea, Laboratory of Blue Biotechnology and Aquatic Bioproducts, 1002, Monastir, Tunis, Tunisia
| | - Imed Messaoudi
- Laboratory of Genetics Biodiversity and Valorization of Bio-resources (LR11ES41), Higher Institute of Biotechnology of Monastir, University of Monastir, Tahar Haded Street, B.P. n 74, 5000, 5000, Monastir, Tunisia
| | - Jamel Jebali
- Laboratory of Genetics Biodiversity and Valorization of Bio-resources (LR11ES41), Higher Institute of Biotechnology of Monastir, University of Monastir, Tahar Haded Street, B.P. n 74, 5000, 5000, Monastir, Tunisia.
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Huang K, Wang Y, Siu KL, Zhang Y, Cai H. Targeting feed-forward signaling of TGFβ/NOX4/DHFR/eNOS uncoupling/TGFβ axis with anti-TGFβ and folic acid attenuates formation of aortic aneurysms: Novel mechanisms and therapeutics. Redox Biol 2021; 38:101757. [PMID: 33126053 DOI: 10.1016/j.redox.2020.101757] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/29/2020] [Accepted: 10/08/2020] [Indexed: 01/09/2023] Open
Abstract
In the present study we aimed to identify novel mechanisms and therapeutics for thoracic aortic aneurysm (TAA) in Fbn1C1039G/+ Marfan Syndrome (MFS) mice. The expression of mature/active TGFβ and its downstream effector NOX4 were upregulated while tetrahydrobiopterin (H4B) salvage enzyme dihydrofolate reductase (DHFR) was downregulated in Fbn1C1039G/+ mice. In vivo treatment with anti-TGFβ completely attenuated NOX4 expression, restored DHFR protein abundance, reduced ROS production, recoupled eNOS and attenuated aneurysm formation. Intriguingly, oral administration with folic acid (FA) to recouple eNOS markedly alleviated expansion of aortic roots and abdominal aortas in Fbn1C1039G/+ mice, which was attributed to substantially upregulated DHFR expression and activity in the endothelium to restore tissue and circulating levels of H4B. Notably, circulating H4B levels were accurately predictive of tissue H4B bioavailability, and negatively associated with expansion of aortic roots, indicating a novel biomarker role of circulating H4B for TAA. Furthermore, FA diet abrogated TGFβ and NOX4 expression, disrupting the feed-forward loop to inactivate TGFβ/NOX4/DHFR/eNOS uncoupling axis in vivo and in vitro, while PTIO, a NO scavenger, reversed this effect in cultured human aortic endothelial cells (HAECs). Besides, expression of the rate limiting H4B synthetic enzyme GTP cyclohydrolase 1 (GTPCHI), was downregulated in Fbn1C1039G/+ mice at baseline. In cultured HAECs, RNAi inhibition of fibrillin resulted in reduced GTPCHI expression, while this response was abrogated by anti-TGFβ, indicating TGFβ-dependent downregulation of GTPCHI in response to fibrillin deficiency. Taken together, our data for the first time reveal that uncoupled eNOS plays a central role in TAA formation, while anti-TGFβ and FA diet robustly abolish aneurysm formation via inactivation of a novel TGFβ/NOX4/DHFR/eNOS uncoupling/TGFβ feed-forward pathway. Correction of fibrillin deficiency is additionally beneficial via preservation of GTPCHI function.
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Zheng L, Huang J, Kong H, Wang F, Su Y, Xin H. The effect of folic acid throughout pregnancy among pregnant women at high risk of pre-eclampsia: A randomized clinical trial. Pregnancy Hypertens 2020; 19:253-8. [PMID: 31987769 DOI: 10.1016/j.preghy.2020.01.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 01/05/2020] [Accepted: 01/11/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Pre-eclampsia is a serious hypertension disease that occurs during pregnancy. Folic acid (FA) supplementation has been reported to reduce pre-eclampsia risk in pregnant women. Here, we aimed to assess whether treatment of high doses of FA in pregnant women with high pre-eclampsia risk could prevent the onset of pre-eclampsia. METHODS We conducted a randomized clinical trial in 1576 women who had pre-eclampsia or eclampsia in their last pregnancy and had a pregnancy plan. Subjects were randomized into two groups. The low dose (LD) group (n = 788) received 0.4 mg of FA daily from the first 3 months of pregnancy until the entire pregnancy, and the high dose (HD) group (n = 788) received 4 mg of FA per day. We followed up the subjects until production. RESULTS The plasma homocysteine (homocysteine) and FA levels were significantly higher in the HD group that in the LD group. Severe gestational hypertension, early onset pre-eclampsia (<32 weeks' gestation), severe pre-eclampsia, and newborns' Apgar score <7 at 5 min were remarkably decreased in the HD group compared with the LD group. Further, the incidence of pre-eclampsia was reduced in the HD group with compliance >50%. CONCLUSION This study has provided evidence that a high dosage of FA supplement from 3 months before pregnancy until the entire pregnancy reduces the recurrent pre-eclampsia.
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Miranpuri GS, Nguyen J, Moreno N, Yutuc NA, Kim J, Buttar S, Brown GR, Sauer SE, Singh CK, Kumar S, Resnick DK. Folic Acid Modulates Matrix Metalloproteinase-9 Expression Following Spinal Cord Injury. Ann Neurosci 2019; 26:60-5. [PMID: 31975775 DOI: 10.5214/ans.0972.7531.260205] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/12/2019] [Accepted: 07/13/2019] [Indexed: 01/17/2023] Open
Abstract
Background Treatment of spinal cord injury (SCI) induced neuropathic pain (NP) proves to
be extremely clinically challenging as the mechanism behind SCINP is poorly
understood. Matrix metalloproteinase (MMP) is largely responsible for the
early disruption of the blood spinal cord barrier. This system initiates
macrophage infiltration and degradation of myelin, which plays a pivotal
role in how NP occurs. In a recent study, we demonstrated that folic acid
(FA) treatment to cSCI rats reduced NP and improved functional recovery by
repressing MMP-2 expression. We hypothesize that MMP-2 expression is
suppressed because FA actively methylates the DNA sequence that encodes for
the MMP-2 protein. However, modulation of MMP-2 expression for alleviation
of NP is only pertinent to the mid- to late-phase of injury. Therefore, we
need to explore alternate therapeutic methods to target the early- to
mid-phase of injury to wholly alleviate NP. Purpose Furthering our previous findings on inhibiting MMP-2 expression by FA in mid-
and late- phase following cSCI in rats, we hypothesized that FA will
methylate and suppress MMP-9 expression during the early- phase, day 1, 3, 7
post cSCI and mid- phase (day 18 post cSCI), in comparison with MMP-2
expression during mid- and the late-phase of cSCI. Methods Adult male Sprague Dawley rats (250–270g) underwent cSCI, using a NYU
impactor, with 12.5 gm/cm injury. The spinal cord-injured animals were
treated intraperitoneally (i.p.) with a standardized dose of FA (80 μg/kg
body weight) on day 1, 2, 3, prior to cSCI, followed by daily injection up
to 14 or 17 days post-cSCI in different experiments. Animals were euthanized
on day 1, 3, 7 post cSCI (early- phase), day 18 post cSCI (mid- phase), and
day 42 post cSCI (late-phase) and the epicenter region of injured spinal
cord were harvested for MMP-9 and MMP-2 expression analysis by Western blots
technique. Results i) During early-phase on day 1, 3, and 7, the quantitation displayed no
statistical significance in MMP-9 expression, between water- and FA-
injected rats. ii) On day 18 post-cSCI, FA significantly modulates the
expression of MMP-9 (p = 0.043) iii) Comparing results with MMP-2 expression
and inhibition, FA significantly modulates the expression of MMP-2 on day 18
post cSCI (FA- and water-injected rats (p = 0.003). iv) In addition, FA
significantly modulates the expression of MMP-2 on day 42 post-cSCI
comparing FA- and water- injected rat groups (p = 0.034). Conclusion We report that FA administration results in alleviating cSCI-induced NP by
inhibiting MMP-9 in the proposed mid- phase of cSCI. However, FA
administration resulted in MMP-2 decline during both mid- through late-
phase following cSCI. Our study elucidates a new phase of cSCI, the
mid-phase. We conclude that further investigation on discovering and
quantifying the nature of the mid- phase of SCI injury is needed.
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Zhu J, Jia YL, Luo YW, Huang DY, Shao CC, Li L, Zhou L, Sun ZY. Effect of maternal folic acid supplementation on prostatitis risk in the rat offspring. Int Urol Nephrol 2018; 50:1963-1973. [PMID: 30141123 DOI: 10.1007/s11255-018-1969-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 08/16/2018] [Indexed: 12/19/2022]
Abstract
PURPOSE Folic acid (FA) intake has increased to high levels in many countries for the prevention of neural tube defects. However, the impact of excess FA intake, particularly before and during pregnancy, requires further investigation. Our aim was to investigate the effect of maternal folic acid supplementation on prostatitis risk in the rat offspring. METHODS Female SD rats were administrated with different doses of FA by oral gavage from 2 weeks prior to mating to GD14: 0 mg/kg (distilled water), 0.2 mg/kg FA and 2.0 mg/kg FA respectively. The male rat offspring from each maternal FA group were castrated on PND56 and injected different doses of 17β-estradiol (E2) subcutaneously for 30 days to induce prostatitis: 0 mg/kg (corn oil) and 1.25 mg/kg E2 respectively. At necropsy, the prostates were collected for histopathological analysis. Fasting blood was collected for the determination of serum E2, T, DHT, and folic acid levels. The expression of TNF-α, COX-2, and ER-α was determined by immunohistochemistry. RESULTS High-dose (2.0 mg/kg) maternal folic acid supplementation significantly increased the proportion of prostatitis in FA(2.0) + E2(1.25) group (87.5%) compared with FA(0) + E2(1.25) group (25%). The inflammation was focal and severe, and large amounts of inflammatory cells appeared in different regions of the prostate in FA(2.0) + E2(1.25) group. The serum T, DHT, and FA levels in FA(2.0) + E2(1.25) group were significantly higher than those in FA(0) + E2(1.25) group. The expression of TNF-α, COX-2, and ER-α in three 1.25 mg/kg E2 groups presented positive, and the number and distribution of positive cells increased as FA dosage increased. CONCLUSIONS Our findings suggest that high-dose (2.0 mg/kg) maternal folic acid supplementation significantly increases the proportion of prostatitis and the prostatic inflammation is more obvious and severe in the rat offspring.
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Affiliation(s)
- Jing Zhu
- School of Pharmacy, Fudan University, Shanghai, 201203, China
- National Evaluation Centre for the Toxicology of Fertility Regulating Drug, Department of Pharmacology and Toxicology, Shanghai Institute of Planned Parenthood Research, Shanghai, 200032, China
- Key Laboratory of Reproduction Regulation of NPFPC, Shanghai, 200032, China
- Reproductive and Developmental Research Institute of Fudan University, Shanghai, 200032, China
| | - Yu-Ling Jia
- National Evaluation Centre for the Toxicology of Fertility Regulating Drug, Department of Pharmacology and Toxicology, Shanghai Institute of Planned Parenthood Research, Shanghai, 200032, China
- Key Laboratory of Reproduction Regulation of NPFPC, Shanghai, 200032, China
- Reproductive and Developmental Research Institute of Fudan University, Shanghai, 200032, China
| | - Yong-Wei Luo
- School of Pharmacy, Fudan University, Shanghai, 201203, China
- National Evaluation Centre for the Toxicology of Fertility Regulating Drug, Department of Pharmacology and Toxicology, Shanghai Institute of Planned Parenthood Research, Shanghai, 200032, China
- Key Laboratory of Reproduction Regulation of NPFPC, Shanghai, 200032, China
- Reproductive and Developmental Research Institute of Fudan University, Shanghai, 200032, China
| | - Dong-Yan Huang
- National Evaluation Centre for the Toxicology of Fertility Regulating Drug, Department of Pharmacology and Toxicology, Shanghai Institute of Planned Parenthood Research, Shanghai, 200032, China
- Key Laboratory of Reproduction Regulation of NPFPC, Shanghai, 200032, China
- Reproductive and Developmental Research Institute of Fudan University, Shanghai, 200032, China
| | - Cong-Cong Shao
- National Evaluation Centre for the Toxicology of Fertility Regulating Drug, Department of Pharmacology and Toxicology, Shanghai Institute of Planned Parenthood Research, Shanghai, 200032, China
- Key Laboratory of Reproduction Regulation of NPFPC, Shanghai, 200032, China
- Reproductive and Developmental Research Institute of Fudan University, Shanghai, 200032, China
| | - Lei Li
- National Evaluation Centre for the Toxicology of Fertility Regulating Drug, Department of Pharmacology and Toxicology, Shanghai Institute of Planned Parenthood Research, Shanghai, 200032, China
- Key Laboratory of Reproduction Regulation of NPFPC, Shanghai, 200032, China
- Reproductive and Developmental Research Institute of Fudan University, Shanghai, 200032, China
| | - Li Zhou
- School of Pharmacy, Fudan University, Shanghai, 201203, China.
- National Evaluation Centre for the Toxicology of Fertility Regulating Drug, Department of Pharmacology and Toxicology, Shanghai Institute of Planned Parenthood Research, Shanghai, 200032, China.
- Key Laboratory of Reproduction Regulation of NPFPC, Shanghai, 200032, China.
- Reproductive and Developmental Research Institute of Fudan University, Shanghai, 200032, China.
| | - Zu-Yue Sun
- School of Pharmacy, Fudan University, Shanghai, 201203, China.
- National Evaluation Centre for the Toxicology of Fertility Regulating Drug, Department of Pharmacology and Toxicology, Shanghai Institute of Planned Parenthood Research, Shanghai, 200032, China.
- Key Laboratory of Reproduction Regulation of NPFPC, Shanghai, 200032, China.
- Reproductive and Developmental Research Institute of Fudan University, Shanghai, 200032, China.
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Yin F, Hu K, Chen Y, Yu M, Wang D, Wang Q, Yong KT, Lu F, Liang Y, Li Z. SiRNA Delivery with PEGylated Graphene Oxide Nanosheets for Combined Photothermal and Genetherapy for Pancreatic Cancer. Am J Cancer Res 2017; 7:1133-1148. [PMID: 28435453 PMCID: PMC5399581 DOI: 10.7150/thno.17841] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 01/02/2017] [Indexed: 12/13/2022] Open
Abstract
Since the successful exfoliation of graphene from graphite in 2004, graphene and graphene oxide (GO) have been considered the most promising two-dimensional (2D) nanomaterials with distinguished physical and chemical characteristics and have attracted great attention in many different fields. Graphene oxide is well-known for its distinct physiochemical properties and shows only minimal cytotoxicity compared to carbon nanotubes. Until now, only limited efforts have been invested in utilizing GO for gene therapy in pancreatic cancer treatments. In this study, we utilized multi-functionalized monolayer GO as a gene delivery system to efficiently co-deliver HDAC1 and K-Ras siRNAs (small interfering RNAs targeting the HDAC1 gene and the G12C mutant K-Ras gene, respectively) to specifically target pancreatic cancer cells MIA PaCa-2. The systematic mechanistic elucidation of the dual gene silencing effects indicated the inactivation of both the HDAC1 and the K-Ras gene, thereby causing apoptosis, proliferation inhibition and cell cycle arrest in treated MIA PaCa-2 cells. The synergistic combination of gene silencing and NIR light thermotherapy showed significant anticancer efficacy, inhibiting in vivo tumor volume growth by >80%. Furthermore, GO can be metabolized in the mouse model within a reasonable period of time without obvious side effects. Based on preliminary in vivo application, this study for the first time indicates the promising potential of functionalized GO as a vehicle for gene therapy delivery with low toxicity for the treatment of pancreatic adenocarcinoma.
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Allard-Vannier E, Hervé-Aubert K, Kaaki K, Blondy T, Shebanova A, Shaitan KV, Ignatova AA, Saboungi ML, Feofanov AV, Chourpa I. Folic acid-capped PEGylated magnetic nanoparticles enter cancer cells mostly via clathrin-dependent endocytosis. Biochim Biophys Acta Gen Subj 2016; 1861:1578-1586. [PMID: 27919801 DOI: 10.1016/j.bbagen.2016.11.045] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 11/18/2016] [Accepted: 11/19/2016] [Indexed: 11/16/2022]
Abstract
BACKGROUND This work is focused on mechanisms of uptake in cancer cells of rationally designed, covalently assembled nanoparticles, made of superparamagnetic iron oxide nanoparticles (SPIONs), fluorophores (doxorubicin or Nile Blue), polyethylene glycol (PEG) and folic acid (FA), referred hereinafter as SFP-FA. METHODS SFP-FA were characterized by DLS, zetametry and fluorescence spectroscopy. The SFP-FA uptake in cancer cells was monitored using fluorescence-based methods like fluorescence-assisted cell sorting, CLSM with single-photon and two-photon excitation. The SFP-FA endocytosis was also analyzed with electron microscopy approaches: TEM, HAADF-STEM and EELS. RESULTS The SFP-FA have zeta potential below -6mW and stable hydrodynamic diameter close to 100nm in aqueous suspensions of pH range from 5 to 8. They contain ca. 109 PEG-FA, 480 PEG-OCH3 and 22-27 fluorophore molecules per SPION. The fluorophores protected under the PEG shell allows a reliable detection of intracellular NPs. SFP-FA readily enter into all the cancer cell lines studied and accumulate in lysosomes, mostly via clathrin-dependent endocytosis, whatever the FR status on the cells. CONCLUSIONS The present study highlights the advantages of rational design of nanosystems as well as the possible involvement of direct molecular interactions of PEG and FA with cellular membranes, not limited to FA-FR recognition, in the mechanisms of their endocytosis. GENERAL SIGNIFICANCE Composition, magnetic and optical properties of the SFP-FA as well their ability to enter cancer cells are promising for their applications in cancer theranosis. Combination of complementary analytical approaches is relevant to understand the nanoparticles behavior in suspension and in contact with cells.
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Affiliation(s)
- Emilie Allard-Vannier
- Université François Rabelais de Tours, EA 6295 Nanomédicaments et Nanosondes, UFR des Sciences Pharmaceutiques, 31 avenue Monge, F-37200 Tours, France
| | - Katel Hervé-Aubert
- Université François Rabelais de Tours, EA 6295 Nanomédicaments et Nanosondes, UFR des Sciences Pharmaceutiques, 31 avenue Monge, F-37200 Tours, France
| | - Karine Kaaki
- Université François Rabelais de Tours, EA 6295 Nanomédicaments et Nanosondes, UFR des Sciences Pharmaceutiques, 31 avenue Monge, F-37200 Tours, France
| | - Thibaut Blondy
- Université François Rabelais de Tours, EA 6295 Nanomédicaments et Nanosondes, UFR des Sciences Pharmaceutiques, 31 avenue Monge, F-37200 Tours, France
| | - Anastasia Shebanova
- Biological Faculty, Lomonosov Moscow State University, Vorobyevi Gori 1, Moscow 119992, Russia
| | - Konstantin V Shaitan
- Biological Faculty, Lomonosov Moscow State University, Vorobyevi Gori 1, Moscow 119992, Russia
| | - Anastasia A Ignatova
- Biological Faculty, Lomonosov Moscow State University, Vorobyevi Gori 1, Moscow 119992, Russia; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya, 16/10, 117997 Moscow, Russia
| | - Marie-Louise Saboungi
- MPMC-Université Pierre et Marie Curie, Case courrier 115, 4 place Jussieu, F-75252 Paris - Cedex 5, France; Functional Nano & Soft Materials Laboratory (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Alexey V Feofanov
- Biological Faculty, Lomonosov Moscow State University, Vorobyevi Gori 1, Moscow 119992, Russia; Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya, 16/10, 117997 Moscow, Russia
| | - Igor Chourpa
- Université François Rabelais de Tours, EA 6295 Nanomédicaments et Nanosondes, UFR des Sciences Pharmaceutiques, 31 avenue Monge, F-37200 Tours, France.
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Zhang L, Fan Y, Wu Y. Inositol based non-viral vectors for transgene expression in human cervical carcinoma and hepatoma cell lines. Biomaterials 2014; 35:2039-50. [PMID: 24314555 DOI: 10.1016/j.biomaterials.2013.11.034] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2013] [Accepted: 11/13/2013] [Indexed: 01/08/2023]
Abstract
Myo-Inositol (INO) is a biomolecule with crucial functions in many aspects. In this study, hyperbranched copolymers for gene delivery were synthesized based on inositol and low molecular weight polyethylenimine. The capacity of INO-PEIs to load plasmid DNA and their biocompatibility was demonstrated. A tumor target ligand, folic acid (FA), which was widely used for drug delivery systems, was subsequently conjugated to INO-PEIs and resulted in INO-PEI-FA copolymers. The polymers were then evaluated on their activity to mediate transgene expression in mammalian cell lines. As indicated, INO-PEIs were able to mediate efficient transgene expression, which was particularly noticeable in carcinoma cell line HeLa. INO-PEI-FA further improved the efficiency in HepG2. Distribution of INO-PEI-FA polymers in non-carcinoma NIH 3T3 and carcinoma HeLa cell lines was discussed.
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