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Lan Y, Qiu X, Xu Y. Expression, Purification and Characterization of Recombinant Disintegrin from Gloydius Brevicaudus Venom in Escherichia Coli. Protein J 2024; 43:603-612. [PMID: 38734856 DOI: 10.1007/s10930-024-10198-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/07/2024] [Indexed: 05/13/2024]
Abstract
Disintegrins, a family of snake venom protein, which are capable of modulating the activity of integrins that play a fundamental role in the regulation of many physiological and pathological processes. The main purpose of this study is to obtain the recombinant disintegrin (r-DI) and evaluate its biological activity. In this study, we explored a high-level expression prokaryotic system and purification strategy for r-DI. Then, r-DI was treated to assay effects on cell growth, migration, and invasion. The affinity for the interactions of r-DI with integrin was determined using Surface plasmon resonance (SPR) analyses. The r-DI can be expressed in Escherichia coli and purified by one-step chromatography. The r-DI can inhibit B16F10 cells proliferation, migration, and invasion. Also, we found that r-DI could interact with the integrin αIIbβ3 (GPIIb/IIIa). The r-DI can be expressed, purified, characterized through functional assays, and can also maintain strong biological activities. Thus, this study showed potential therapeutic effects of r-DI for further functional and structural studies.
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Affiliation(s)
- Yinxiang Lan
- Department of Pharmacy, Fujian Children's Hospital (Fujian Branch of Shanghai Children's Medical Center), College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, FuJian Medical University, Fuzhou, Fujian, China
| | - Xiuliang Qiu
- Department of Pharmacy, Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, Fuzhou, Fujian, China
| | - Yunlu Xu
- The School of Pharmacy, Fujian Medical University, Fuzhou, Fujian, China.
- Center of Translational Hematology of Fujian Medical University, Fuzhou, Fujian, China.
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Khodabakhsh F, Salimian M, Ziaee P, Kazemi-Lomedasht F, Behdani M, Ahangari Cohan R. Designing and Development of a Tandem Bivalent Nanobody against VEGF 165. Avicenna J Med Biotechnol 2021; 13:58-64. [PMID: 34012520 PMCID: PMC8112138 DOI: 10.18502/ajmb.v13i2.5519] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background: Inhibition of angiogenesis using monoclonal antibodies is an effective strategy in cancer therapy. However, they could not penetrate sufficiently into solid tumors. Antibody fragments have solved this issue. However, they suffer from short in vivo half-life. In the current study, a tandem bivalent strategy was used to enhance the pharmacokinetic parameters of an anti-VEGF165 nanobody. Methods: Homology modeling and MD simulation were used to check the stability of protein. The cDNA was cloned into pHEN6C vector and the expression was investigated in WK6 Escherichia coli (E. coli) cells by SDS-PAGE and western blot. After purification, the size distribution of tandem bivalent nanobody was investigated by dynamic light scattering. Moreover, in vitro antiproliferative activity and pharmacokinetic study were studied in HUVECs and Balb/c mice, respectively. Results: RMSD analysis revealed the tandem bivalent nanobody had good structural stability after 50 ns of simulation. A hinge region of llama IgG2 was used to fuse the domains. The expression was induced by 1 mM IPTG at 25°C for overnight. A 30 kDa band in 12% polyacrylamide gel and nitrocellulose paper has confirmed the expression. The protein was successfully purified using metal affinity chromatography. MTT assay revealed there is no significant difference between the antiproliferative activity of tandem bivalent nanobody and the native protein. The hydrodynamic radius and terminal half-life of tandem bivalent nanobody increased approximately 2-fold by multivalency compared to the native protein. Conclusion: Our data revealed that the physicochemical as well as in vivo pharmacokinetic parameters of tandem bivalent nanobody was significantly improved.
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Affiliation(s)
- Farnaz Khodabakhsh
- Department of Genetics and Advanced Medical Technology, Medical Biotechnology Research Center, Faculty of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Morteza Salimian
- Department of Medical Laboratory, Kashan University of Medical Sciences, Kashan, Iran
| | - Pardis Ziaee
- Department of Biology, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Fatemeh Kazemi-Lomedasht
- Venom and Biotherapeutics Molecules Laboratory, Department of Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Mahdi Behdani
- Venom and Biotherapeutics Molecules Laboratory, Department of Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Reza Ahangari Cohan
- Department of Nanobiotechnology, New Technologies Research Group, Pasteur Institute of Iran, Tehran, Iran
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Wang Q, Zhang X, Wang K, Zhu L, Qiu B, Chen X, Lin X, Nie Y. An In Vitro Model of Diabetic Retinal Vascular Endothelial Dysfunction and Neuroretinal Degeneration. J Diabetes Res 2021; 2021:9765119. [PMID: 34805414 PMCID: PMC8598328 DOI: 10.1155/2021/9765119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 10/09/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Diabetic retinopathy (DR) is a leading cause of blindness in working-age populations. Proper in vitro DR models are crucial for exploring pathophysiology and identifying novel therapeutic targets. This study establishes a rational in vitro diabetic retinal neuronal-endothelial dysfunction model and a comprehensive downstream validation system. METHODS Human retinal vascular endothelial cells (HRMECs) and retinal ganglion cells (RGCs) were treated with different glucose concentrations with mannitol as matched osmotic controls. Cell proliferation and viability were evaluated by the Cell Counting Kit-8. Cell migration was measured using a transwell migration assay. Cell sprouting was assessed by a tube formation assay. The VEGF expression was assessed by ELISA. RGCs were labeled by neurons and RGC markers TUJ1 and BRN3A for quantitative and morphological analysis. Apoptosis was detected using PI/Hoechst staining and TUNEL assay and quantified by ImageJ. RESULTS Cell proliferation and migration in HRMECs were significantly higher in the 25 mM glucose-treated group (p < 0.001) but lower in the 50 mM and 100 mM groups (p < 0.001). The permeability and the apoptotic index in HRMECs were statistically higher in the 25 mM, 50 mM, and 100 mM groups (p < 0.05). The tube formation assay found that all the parameters were significantly higher in the 25 mM and 50 mM groups (p < 0.001) concomitant with the elevated VEGFA expression in HRMECs (p = 0.016). Cell viability was significantly lower in the 50 mM, 100 mM, and 150 mM groups in RGCs (p 50mM = 0.013, p 100mM = 0.019, and p 150mM = 0.002). Apoptosis was significantly elevated, but the proportion of RGCs with neurite extension was significantly lower in the 50 mM, 100 mM, and 150 mM groups (p 50mM < 0.001, p 100mM < 0.001, and p 150mM < 0.001). CONCLUSIONS We have optimized glucose concentrations to model diabetic retinal endothelial (25-50 mM) or neuronal (50-100 mM) dysfunction in vitro, which have a wide range of downstream applications.
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Affiliation(s)
- Qiyun Wang
- Beijing Institute of Ophthalmology, Tongren Eye Center, Beijing Tongren Hospital, Capital Medical Univeristy, Beijing, China
- Beijing Retinal and Choroidal Vascular Diseases Study Group, China
| | - Xinyuan Zhang
- Beijing Institute of Ophthalmology, Tongren Eye Center, Beijing Tongren Hospital, Capital Medical Univeristy, Beijing, China
- Beijing Retinal and Choroidal Vascular Diseases Study Group, China
| | - Kaiyue Wang
- Beijing Institute of Ophthalmology, Tongren Eye Center, Beijing Tongren Hospital, Capital Medical Univeristy, Beijing, China
| | - Ling Zhu
- Save Sight Institute, Department of Ophthalmology, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Bingjie Qiu
- Beijing Institute of Ophthalmology, Tongren Eye Center, Beijing Tongren Hospital, Capital Medical Univeristy, Beijing, China
- Beijing Retinal and Choroidal Vascular Diseases Study Group, China
| | - Xiaosi Chen
- Beijing Institute of Ophthalmology, Tongren Eye Center, Beijing Tongren Hospital, Capital Medical Univeristy, Beijing, China
- Beijing Retinal and Choroidal Vascular Diseases Study Group, China
| | - Xiao Lin
- Beijing Institute of Ophthalmology, Tongren Eye Center, Beijing Tongren Hospital, Capital Medical Univeristy, Beijing, China
| | - Yao Nie
- Beijing Institute of Ophthalmology, Tongren Eye Center, Beijing Tongren Hospital, Capital Medical Univeristy, Beijing, China
- Beijing Retinal and Choroidal Vascular Diseases Study Group, China
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Zarychta E, Rhone P, Bielawski K, Michalska M, Rość D, Ruszkowska-Ciastek B. Anti-angiogenic efficacy in invasive breast carcinoma patients depends on clinicopathological determinants. Adv Med Sci 2019; 64:216-223. [PMID: 30818220 DOI: 10.1016/j.advms.2019.02.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 09/19/2018] [Accepted: 02/08/2019] [Indexed: 12/26/2022]
Abstract
PURPOSE The biggest problem with the occurrence of breast cancer is late diagnosis, which is associated with high mortality rates. The aim of the study was to appraise the number of circulating endothelial precursors and the concentration of vascular endothelial growth factor A (VEGF-A) and the soluble forms of its receptors, sVEGFR1 and sVEGFR2, in breast cancer patients with respect to clinicopathological features. MATERIAL AND METHODS The study involved 85 women of Caucasian ethnicity aged 45-66 with primary breast cancer without distant metastases (M0). Inclusion criteria were as follows: histopathological examination confirming the diagnosis of primary breast cancer, without previous radiotherapy and chemotherapy. Immunohistochemistry evaluation of oestrogen and progesterone receptors, human epidermal growth factor receptor 2, Ki67 expression was made in all cases. In the EDTA-plasma, the concentrations of VEGF-A and its soluble receptors, sVEGFR1 and sVEGFR2, were measured applying immunoassay techniques. Circulating endothelial progenitor cells (EPCs) were identified with the immune-phenotype CD45-, CD34+, CD133+, CD31+ using flow cytometry. RESULTS Older women with breast cancer had significantly higher concentrations of VEGF-A as well as sVEGFR2 compared with their younger counterparts. A significantly higher concentration of the soluble form of VEGF receptor type 1 in patients with T1 breast cancer in relation to T2 cases was noted. Also, negative correlations between circulating EPCs and histological grading as well as a soluble form of VEGFR2 with histological grading of breast cancer according to the Elston-Ellis classification were observed. CONCLUSIONS Anti-angiogenic potential is divergent in relation to the clinicopathological determinants.
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Wieczór R, Wieczór AM, Gadomska G, Stankowska K, Fabisiak J, Suppan K, Pulkowski G, Budzyński J, Rość D. Overweight and obesity versus concentrations of VEGF-A, sVEGFR-1, and sVEGFR-2 in plasma of patients with lower limb chronic ischemia. J Zhejiang Univ Sci B 2017; 17:842-849. [PMID: 27819131 DOI: 10.1631/jzus.b1600009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Being overweight or obese comprises a significant risk factor for atherosclerosis. Fat tissue also generates factors stimulating angiogenesis, the process by which new blood vessels form. The purpose of this paper is to assess concentrations of the vascular endothelial growth factor A (VEGF-A) and its soluble type-1 and type-2 receptors (sVEGFR-1 and sVEGFR-2) in plasma of patients with peripheral arterial disease (PAD) depending on the level of nutrition according to body mass index (BMI). METHODS The study group included patients suffering from symptomatic PAD (n=46) in Fontaine classes IIa-IV without any history of neoplastic disease and who have a normal BMI (n=15), are overweight (n=21) or are obese (n=10). The control group (n=30) consisted of healthy non-smoking volunteers who were neither overweight nor obese. Venous blood plasma samples were collected from both groups at rest in the morning to determine plasma concentrations of VEGF-A, sVEGFR-1, and sVEGFR-2 using the enzyme-linked immunosorbent assay (ELISA) method. RESULTS The group of patients with PAD co-existent with being overweight or obese tended to have higher mean concentration levels of VEGF-A and sVEGFR-2 when compared with patients suffering from PAD with normal BMI. A statistically significant positive correlation was obtained between BMI and average plasma concentrations of sVEGFR-2 (R=0.37, P=0.0103). However, no significant correlation was noticed between BMI and VEGF-A or sVEGFR-1 concentrations. CONCLUSIONS A positive correlation determined between the level of antiangiogenic factor and BMI value may be indicative of the linearly growing prevalence of some antiangiogenic factors in patients with metabolic disorders, which may be one of numerous factors contributing to incomplete efficiency of collateral circulation development in patients with PAD.
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Affiliation(s)
- Radosław Wieczór
- Department of Pathophysiology, Faculty of Pharmacy, Nicolaus Copernicus University in Toruń, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz PL 85-094, Poland.,Clinic of Vascular and Internal Medicine, Dr. Jan Biziel University Hospital No. 2 in Bydgoszcz, Bydgoszcz PL 85-168, Poland
| | - Anna Maria Wieczór
- Department of Pathophysiology, Faculty of Pharmacy, Nicolaus Copernicus University in Toruń, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz PL 85-094, Poland
| | - Grażyna Gadomska
- Department of Pathophysiology, Faculty of Pharmacy, Nicolaus Copernicus University in Toruń, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz PL 85-094, Poland
| | - Katarzyna Stankowska
- Department of Pathophysiology, Faculty of Pharmacy, Nicolaus Copernicus University in Toruń, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz PL 85-094, Poland
| | - Jacek Fabisiak
- Clinic of Vascular and Internal Medicine, Dr. Jan Biziel University Hospital No. 2 in Bydgoszcz, Bydgoszcz PL 85-168, Poland
| | - Karol Suppan
- Clinic of Vascular and Internal Medicine, Dr. Jan Biziel University Hospital No. 2 in Bydgoszcz, Bydgoszcz PL 85-168, Poland
| | - Grzegorz Pulkowski
- Clinic of Vascular and Internal Medicine, Dr. Jan Biziel University Hospital No. 2 in Bydgoszcz, Bydgoszcz PL 85-168, Poland
| | - Jacek Budzyński
- Clinic of Vascular and Internal Medicine, Dr. Jan Biziel University Hospital No. 2 in Bydgoszcz, Bydgoszcz PL 85-168, Poland.,Department of Vascular and Internal Medicine, Faculty of Health Sciences, Nicolaus Copernicus University in Toruń, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz PL 85-168, Poland
| | - Danuta Rość
- Department of Pathophysiology, Faculty of Pharmacy, Nicolaus Copernicus University in Toruń, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz PL 85-094, Poland
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Wieczór R, Gadomska G, Ruszkowska-Ciastek B, Stankowska K, Budzyński J, Fabisiak J, Suppan K, Pulkowski G, Rość D. Impact of type 2 diabetes on the plasma levels of vascular endothelial growth factor and its soluble receptors type 1 and type 2 in patients with peripheral arterial disease. J Zhejiang Univ Sci B 2016; 16:948-56. [PMID: 26537213 DOI: 10.1631/jzus.b1500076] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Type 2 diabetes coexistent with lower extremity artery disease (peripheral arterial disease (PAD)) can be observed in numerous patients. The mechanism compensating for ischemia and contributing to healing is angiogenesis-the process of forming new blood vessels. The purpose of this study was to assess the likely impact of type 2 diabetes on the plasma levels of proangiogenic factor (vascular endothelial growth factor A (VEGF-A)) and angiogenesis inhibitors (soluble VEGF receptors type 1 and type 2 (sVEGFR-1 and sVEGFR-2)) in patients with PAD. METHODS Among 46 patients with PAD under pharmacological therapy (non-invasive), we identified, based on medical history, a subgroup with coexistent type 2 diabetes (PAD-DM2+, n=15) and without diabetes (PAD-DM2-, n=31). The control group consisted of 30 healthy subjects. Plasma levels of VEGF-A, sVEGFR-1, and sVEGFR-2 were measured using the enzyme-linked immunosorbent assay (ELISA) method. RESULTS The subgroups of PAD-DM2+ and PAD-DM2- revealed significantly higher concentrations of VEGF-A (P=0.000 007 and P=0.000 000 1, respectively) and significantly lower sVEGFR-2 levels (P=0.02 and P=0.000 01, respectively), when compared with the control group. Patients with PAD and coexistent diabetes tended to have a lower level of VEGF-A and higher levels of sVEGFR-1 and sVEGFR-2 comparable with non-diabetic patients. CONCLUSIONS The coexistence of type 2 diabetes and PAD is demonstrated by a tendency to a lower plasma level of proangiogenic factor (VEGF-A) and higher levels of angiogenesis inhibitors (sVEGFR-1 and sVEGFR-2) at the same time. Regardless of the coexistence of type 2 diabetes, hypoxia appears to be a crucial factor stimulating the processes of angiogenesis in PAD patients comparable with healthy individuals, whereas hyperglycemia may have a negative impact on angiogenesis in lower limbs.
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Affiliation(s)
- Radosław Wieczór
- Department of Pathophysiology, Faculty of Pharmacy, Nicolaus Copernicus University in Toruń, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz PL 85-094, Poland.,Clinic of Vascular and Internal Medicine, Dr. Jan Biziel University Hospital No. 2 in Bydgoszcz, Bydgoszcz PL 85-168, Poland
| | - Grażyna Gadomska
- Department of Pathophysiology, Faculty of Pharmacy, Nicolaus Copernicus University in Toruń, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz PL 85-094, Poland
| | - Barbara Ruszkowska-Ciastek
- Department of Pathophysiology, Faculty of Pharmacy, Nicolaus Copernicus University in Toruń, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz PL 85-094, Poland
| | - Katarzyna Stankowska
- Department of Pathophysiology, Faculty of Pharmacy, Nicolaus Copernicus University in Toruń, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz PL 85-094, Poland
| | - Jacek Budzyński
- Clinic of Vascular and Internal Medicine, Dr. Jan Biziel University Hospital No. 2 in Bydgoszcz, Bydgoszcz PL 85-168, Poland.,Department of Vascular and Internal Medicine, Faculty of Health Sciences, Nicolaus Copernicus University in Toruń, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz PL 85-168, Poland
| | - Jacek Fabisiak
- Clinic of Vascular and Internal Medicine, Dr. Jan Biziel University Hospital No. 2 in Bydgoszcz, Bydgoszcz PL 85-168, Poland
| | - Karol Suppan
- Clinic of Vascular and Internal Medicine, Dr. Jan Biziel University Hospital No. 2 in Bydgoszcz, Bydgoszcz PL 85-168, Poland
| | - Grzegorz Pulkowski
- Clinic of Vascular and Internal Medicine, Dr. Jan Biziel University Hospital No. 2 in Bydgoszcz, Bydgoszcz PL 85-168, Poland
| | - Danuta Rość
- Department of Pathophysiology, Faculty of Pharmacy, Nicolaus Copernicus University in Toruń, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Bydgoszcz PL 85-094, Poland
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Yu DY, Noh SM, Lee GM. Limitations to the development of recombinant human embryonic kidney 293E cells using glutamine synthetase-mediated gene amplification: Methionine sulfoximine resistance. J Biotechnol 2016; 231:136-140. [DOI: 10.1016/j.jbiotec.2016.06.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 05/16/2016] [Accepted: 06/06/2016] [Indexed: 10/21/2022]
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