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Wang F, Wang RY, Zhong DB, Zhao P, Xia QY. Highly efficient expression of human extracellular superoxide dismutase (rhEcSOD) with ultraviolet-B-induced damage-resistance activity in transgenic silkworm cocoons. INSECT SCIENCE 2023. [PMID: 38010045 DOI: 10.1111/1744-7917.13289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 09/20/2023] [Accepted: 09/24/2023] [Indexed: 11/29/2023]
Abstract
Extracellular superoxide dismutase (EcSOD) protects tissues from oxidative stress, and thus is considered as a therapeutic agent for many diseases such as atherosclerosis, hypertension, and cancer. However, cost-effective production of bioactive recombinant human EcSOD (rhEcSOD) remains a challenge. Herein, we developed an efficient strategy for producing active rhEcSOD by transgenic silkworms. rhEcSOD was successfully synthesized as homodimers and homotetramers in the middle silk gland and spun into the cocoons with a concentration of 9.48 ± 0.21 mg/g. Purification of rhEcSOD from the cocoons could be conveniently achieved with a purity of 99.50% and a yield of 3.5 ± 0.5 mg/g. Additionally, N-glycosylation at the only site of N89 in rhEcSOD with 10 types were identified. The purified rhEcSOD gained the potent enzymatic activity of 4 162 ± 293 U/mg after Cu/Zn ions incorporation. More importantly, rhEcSOD was capable of penetrating and accumulating in the nuclei of cells to maintain cell morphology and attenuate ultraviolet B-induced cell apoptosis by eliminating reactive oxygen species and inhibiting the C-Jun N-terminal kinase signaling pathway. These results demonstrated that the transgenic silkworm could successfully produce rhEcSOD with enzymatic and biological activities for biomedical applications.
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Affiliation(s)
- Feng Wang
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Biological Science Research Center, Southwest University, Chongqing, China
| | - Ri-Yuan Wang
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Biological Science Research Center, Southwest University, Chongqing, China
| | - De-Bin Zhong
- Century Legend Biotechnology Research Institute (Chongqing) Co., Ltd., Chongqing, China
| | - Ping Zhao
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Biological Science Research Center, Southwest University, Chongqing, China
| | - Qing-You Xia
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Biological Science Research Center, Southwest University, Chongqing, China
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Li X, Zhou S, Wang Y, Lian H, Zuo A, Zhou K, Tong L, Zhou Z, Gao J. The pilot-scale preparation of the SA-hGM-CSF bi-functional fusion protein. Bioengineered 2019; 10:108-120. [PMID: 31017543 PMCID: PMC6527079 DOI: 10.1080/21655979.2019.1608712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The granulocyte-macrophage colony-stimulating factor (GM-CSF) can be used to induce a powerful immune response. Based on the specific binding of biotin and streptavidin, SA-hGM-CSF was anchored on the surface of biotinylated tumor cells, which could enhance the anti-tumor effect of tumor cell vaccines in our previous reports, suggesting it would have potential clinical value. Preparation of the biologically active proteins in large-scale production is the basis of clinical application, however, only a small amount of biologically active protein was obtained according to previous studies. In this study, we researched the effects of various factors on the purification and simultaneous renaturation of SA-hGM-CSF fusion protein by single factor experiment and orthogonal experiment. Here, we developed a viable pilot-scale trial in the fermentation, purification, refolding and freeze-drying of SA-hGM-CSF proteins in order to efficiently obtain more biologically active proteins with high purity, which will lay the foundation for industrial production.
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Affiliation(s)
- Xiaoqing Li
- a Zhejiang Provincial Key Lab for Technology & Application of Model Organisms,School of Laboratory Medicine and Life Sciences , Wenzhou Medical University , Wenzhou , China
| | - Shirong Zhou
- a Zhejiang Provincial Key Lab for Technology & Application of Model Organisms,School of Laboratory Medicine and Life Sciences , Wenzhou Medical University , Wenzhou , China
| | - Yao Wang
- a Zhejiang Provincial Key Lab for Technology & Application of Model Organisms,School of Laboratory Medicine and Life Sciences , Wenzhou Medical University , Wenzhou , China
| | - Hui Lian
- a Zhejiang Provincial Key Lab for Technology & Application of Model Organisms,School of Laboratory Medicine and Life Sciences , Wenzhou Medical University , Wenzhou , China
| | - Anxin Zuo
- a Zhejiang Provincial Key Lab for Technology & Application of Model Organisms,School of Laboratory Medicine and Life Sciences , Wenzhou Medical University , Wenzhou , China
| | - Kaihua Zhou
- a Zhejiang Provincial Key Lab for Technology & Application of Model Organisms,School of Laboratory Medicine and Life Sciences , Wenzhou Medical University , Wenzhou , China
| | - Ling Tong
- a Zhejiang Provincial Key Lab for Technology & Application of Model Organisms,School of Laboratory Medicine and Life Sciences , Wenzhou Medical University , Wenzhou , China
| | - Zhujun Zhou
- a Zhejiang Provincial Key Lab for Technology & Application of Model Organisms,School of Laboratory Medicine and Life Sciences , Wenzhou Medical University , Wenzhou , China
| | - Jimin Gao
- a Zhejiang Provincial Key Lab for Technology & Application of Model Organisms,School of Laboratory Medicine and Life Sciences , Wenzhou Medical University , Wenzhou , China
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Production of functional human CuZn-SOD and EC-SOD in bitransgenic cloned goat milk. Transgenic Res 2018; 27:343-354. [PMID: 29926349 DOI: 10.1007/s11248-018-0080-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 05/26/2018] [Indexed: 12/16/2022]
Abstract
Human copper/zinc superoxide dismutase (CuZn-SOD) and extracellular superoxide dismutase (EC-SOD) are two superoxide dismutases that scavenge reactive oxygen species (ROS). Their biological role of eliminating oxidative stress caused by excessive ROS levels in living organisms has been utilized in medical treatment, preventing skin photoaging and food preservation. In this study, we employed two sequences that encode human CuZn-SOD and EC-SOD, along with goat beta-casein 5' and 3' regulatory elements, to construct mammary gland-specific expression vectors. Bitransgenic goats were generated using somatic cell nuclear transfer (SCNT), which employed co-transfection to generate bitransgenic goat fetal fibroblast cells as donor cells, and the expression of human CuZn-SOD and EC-SOD and their biological activities were assayed in the milk. PCR and Southern blot analysis confirmed that the cloned goat harbors both hCuZn-SOD and hEC-SOD transgenes. rhCuZn-SOD and rhEC-SOD were expressed in the mammary glands of bitransgenic goat, as determined by western blotting. The expression levels were 100.14 ± 5.09 mg/L for rhCuZn-SOD and 279.10 ± 5.38 mg/L for rhEC-SOD, as determined using ELISA. A total superoxide dismutase assay with WST-8 indicates that the biological activity of rhCuZn-SOD and rhEC-SOD in goat milk is 1451 ± 136 U/mL. The results indicate that two expression vectors can simultaneously transfect goat fetal fibroblast cells as donor cells to produce transgenic goats by SCNT, and the CuZn-SOD and EC-SOD proteins secreted in the mammary glands showed biological activity. The present study thus describes an initial step in the production of recombinant human SODs that may potentially be used for therapeutic purposes.
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Kim S, Kim HY, Kim JH, Choi JH, Ham WK, Jeon YJ, Kang H, Kim TY. Enhancement of potency and stability of human extracellular superoxide dismutase. BMB Rep 2015; 48:91-6. [PMID: 24856831 PMCID: PMC4352618 DOI: 10.5483/bmbrep.2015.48.2.093] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Indexed: 01/13/2023] Open
Abstract
Cells express several antioxidant enzymes to scavenge reactive oxygen species (ROS) responsible for oxidative damages and various human diseases. Therefore, antioxidant enzymes are considered biomedicine candidates. Among them, extracellular superoxide dismutase (SOD3) had showed prominent efficacy against asthma and inflammation. Despite its advantages as a biomedicine, the difficulty in obtaining large quantity of active recombinant human SOD3 (rhSOD3) has limited its clinical applications. We found that a significant fraction of overexpressed rhSOD3 was composed of the inactive apo-enzyme and its potency against inflammation depended on the rate of metal incorporation. Also, purified rhSOD3 was unstable and lost its activity very quickly. Here, we suggest an ideal preparative method to express, purify, and store highly active rhSOD3. The enzymatic activity of rhSOD3 was maximized by incorporating metal ions into rhSOD3 after purification. Also, albumin or polyethylene glycol prevented rapid inactivation or degradation of rhSOD3 during preparative procedures and long-term storage.
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Affiliation(s)
- Sunghwan Kim
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul 137-040; New Drug Development Center, Daegu-Gyungpook Medical Innovation Foundation, Daegu 701-310, Korea
| | - Hae-Young Kim
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul 137-040, Korea
| | - Jung-Ho Kim
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul 137-040, Korea
| | - Jung-Hye Choi
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul 137-040, Korea
| | - Won-Kook Ham
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul 137-040, Korea
| | - Yoon-Jae Jeon
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul 137-040, Korea
| | - Hara Kang
- Division of Life Science, College of Life Science and Bioengineering, Incheon National University, Incheon 406-772, Korea
| | - Tae-Yoon Kim
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul 137-040, Korea
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Sohoni SV, Nelapati D, Sathe S, Javadekar-Subhedar V, Gaikaiwari RP, Wangikar PP. Optimization of high cell density fermentation process for recombinant nitrilase production in E. coli. BIORESOURCE TECHNOLOGY 2015; 188:202-208. [PMID: 25739996 DOI: 10.1016/j.biortech.2015.02.038] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Revised: 02/09/2015] [Accepted: 02/10/2015] [Indexed: 06/04/2023]
Abstract
Nitrilases constitute an important class of biocatalysts for chiral synthesis. This work was undertaken with the aim to optimize nitrilase production in a host that is well-studied for protein production. Process parameters were optimized for high cell density fermentation, in batch and fed-batch modes, of Escherichia coli BL21 (DE3) expressing Pseudomonas fluorescens nitrilase with a T7 promoter based expression system. Effects of different substrates, temperature and isopropyl β-D-1-thiogalactopyranoside (IPTG) induction on nitrilase production were studied. Super optimal broth containing glycerol but without an inducer gave best results in batch mode with 32 °C as the optimal temperature. Use of IPTG led to insoluble protein and lower enzyme activity. Optimized fed-batch strategy resulted in significant improvement in specific activity as well as volumetric productivity of the enzyme. On a volumetric basis, the activity improved 40-fold compared to the unoptimized batch process.
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Affiliation(s)
- Sujata Vijay Sohoni
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India; DBT-Pan IIT Center for Bioenergy, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Dhanaraj Nelapati
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Sneha Sathe
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Vaishali Javadekar-Subhedar
- Hi Tech Biosciences India Ltd., C-2, 102/103, Saudamini Complex, Right Bhusari Colony, Paud Road, Kothrud, Pune 411038, India
| | - Raghavendra P Gaikaiwari
- Hi Tech Biosciences India Ltd., C-2, 102/103, Saudamini Complex, Right Bhusari Colony, Paud Road, Kothrud, Pune 411038, India
| | - Pramod P Wangikar
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India; DBT-Pan IIT Center for Bioenergy, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India; Wadhwani Research Center for Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
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Ferreira Vaz MR, Sousa Junior FCD, Araújo Padilha CED, Arantes Martins DR, Santos ES, Macedo GR. Production of recombinant 503 antigen of Leishmania infantum chagasi using cultivation in batch and fed-batch. BMC Proc 2014. [PMCID: PMC4210679 DOI: 10.1186/1753-6561-8-s4-p186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Byun SJ, Ji MR, Jang YJ, Hwang AI, Chung HK, Kim JS, Kim KW, Chung HJ, Yang BC, Jeon I, Park JK, Yoo JG, Kim TY. Human extracellular superoxide dismutase (EC-SOD) expression in transgenic chicken. BMB Rep 2014; 46:404-9. [PMID: 23977988 PMCID: PMC4133906 DOI: 10.5483/bmbrep.2013.46.8.251] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Extracellular superoxide dismutase (EC-SOD) is a metalloprotein and functions as an antioxidant enzyme. In this study, we used lentiviral vectors to generate transgenic chickens that express the human EC-SOD gene. The recombinant lentiviruses were injected into the subgerminal cavity of freshly laid eggs. Subsequently, the embryos were incubated to hatch using phases II and III of the surrogate shell ex vivo culture system. Of 158 injected embryos, 16 chicks (G0) hatched and were screened for the hEC-SOD by PCR. Only 1 chick was identified as a transgenic bird containing the transgene in its germline. This founder (G0) bird was mated with wild-type hens to produce transgenic progeny, and 2 transgenic chicks (G1) were produced. In the generated transgenic hens (G2), the hEC-SOD protein was expressed in the egg white and showed antioxidant activity. These results highlight the potential of the chicken for production of biologically active proteins in egg white. [BMB Reports 2013; 46(8): 404-409]
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Affiliation(s)
- Sung June Byun
- Laboratory of Dermatology-immunology, The Catholic University of Korea, Seoul 137-701, Korea
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Bae JY, Koo BK, Ryu HB, Song JA, Nguyen MT, Vu TTT, Son YJ, Lee HK, Choe H. Cu/Zn incorporation during purification of soluble human EC-SOD from E. coli stabilizes proper disulfide bond formation. Appl Biochem Biotechnol 2013; 169:1633-47. [PMID: 23329142 DOI: 10.1007/s12010-012-0025-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Accepted: 12/05/2012] [Indexed: 01/05/2023]
Abstract
Extracellular superoxide dismutase (EC-SOD) is the only enzyme that removes superoxide radical in the extracellular space. The reduction of EC-SOD is linked to many diseases, suggesting that the protein may have therapeutic value. EC-SOD is reported to be insoluble and to make inclusion bodies when overexpressed in the cytoplasm of Escherichia coli. The refolding process has the advantage of high yield, but has the disadvantage of frequent aggregation or misfolding during purification. For the first time, this study shows that fusion with maltose-binding protein (MBP), N-utilization substance protein A, and protein disulfide isomerase enabled the soluble overexpression of EC-SOD in the cytoplasm of E. coli. MBP-tagged human EC-SOD (hEC-SOD) was purified by MBP affinity and anion exchange chromatography, and its identity was confirmed by MALDI-TOF MS analysis. The purified protein showed good enzyme activity in vitro; however, there was a difference in metal binding. When copper and zinc were incorporated into hEC-SOD before MBP tag cleavage, the enzymatic activity was higher than when the metal ions were bound to the purified protein after MBP tag cleavage. Therefore, the enzymatic activity of hEC-SOD is associated with metal incorporation and protein folding via disulfide bond.
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Affiliation(s)
- Ji-Young Bae
- Department of Physiology and Bio-Medical Institute of Technology, University of Ulsan College of Medicine, 86 Asanbyeongwon-gil, Seoul 138-736, South Korea
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Carvalho RJ, Cabrera-Crespo J, Tanizaki MM, Gonçalves VM. Development of production and purification processes of recombinant fragment of pneumococcal surface protein A in Escherichia coli using different carbon sources and chromatography sequences. Appl Microbiol Biotechnol 2011; 94:683-94. [DOI: 10.1007/s00253-011-3649-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Revised: 09/28/2011] [Accepted: 10/17/2011] [Indexed: 11/24/2022]
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Yin SJ, Lü ZR, Park D, Chung HY, Yang JM, Zhou HM, Qian GY, Park YD. Trifluoroethanol-induced changes in activity and conformation of manganese-containing superoxide dismutase. Appl Biochem Biotechnol 2011; 166:276-88. [PMID: 22057937 DOI: 10.1007/s12010-011-9423-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2011] [Accepted: 10/18/2011] [Indexed: 11/26/2022]
Abstract
Superoxide dismutase (SOD, EC 1.15.1.1) plays an important role in antioxidant defense in organisms exposed to oxygen. However, there is a lack of research into the regulation of SOD activity and structural changes during folding, especially for SOD originating from extremophiles. We studied the inhibitory effects of trifluoroethanol (TFE) on the activity and conformation of manganese-containing SOD (Mn-SOD) from Thermus thermophilus. TFE decreased the degree of secondary structure of Mn-SOD, which directly resulted in enzyme inactivation and disrupted the tertiary structure of Mn-SOD. The kinetic studies showed that TFE-induced inactivation of Mn-SOD is a first-order reaction and that the regional Mn-contained active site is very stable compared to the overall structure. We further simulated the docking between Mn-SOD and TFE (binding energy for Dock 6.3, -9.68 kcal/mol) and predicted that the LEU9, TYR13, and HIS29 residues outside of the active site interact with TFE. Our results provide insight into the inactivation of Mn-SOD during unfolding in the presence of TFE and allow us to describe ligand binding via inhibition kinetics combined with computational predictions.
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Affiliation(s)
- Shang-Jun Yin
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, People's Republic of China
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Constitutive overexpression of Pseudoalteromonas carrageenovora arylsulfatase in E. coli fed-batch culture. KOREAN J CHEM ENG 2011. [DOI: 10.1007/s11814-010-0488-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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