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Chung J, Kim S, Jeong J, Kim D, Jo A, Kim HY, Hwang J, Kweon DH, Yoo SY, Chung WJ. Preventive and therapeutic effects of a super-multivalent sialylated filamentous bacteriophage against the influenza virus. Biomaterials 2025; 312:122736. [PMID: 39121728 DOI: 10.1016/j.biomaterials.2024.122736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 07/17/2024] [Accepted: 07/30/2024] [Indexed: 08/12/2024]
Abstract
The resurgence of influenza viruses as a significant global threat emphasizes the urgent need for innovative antiviral strategies beyond existing treatments. Here, we present the development and evaluation of a novel super-multivalent sialyllactosylated filamentous phage, termed t-6SLPhage, as a potent entry blocker for influenza A viruses. Structural variations in sialyllactosyl ligands, including linkage type, valency, net charge, and spacer length, were systematically explored to identify optimal binding characteristics against target hemagglutinins and influenza viruses. The selected SLPhage equipped with optimal ligands, exhibited exceptional inhibitory potency in in vitro infection inhibition assays. Furthermore, in vivo studies demonstrated its efficacy as both a preventive and therapeutic intervention, even when administered post-exposure at 2 days post-infection, under 4 lethal dose 50% conditions. Remarkably, co-administration with oseltamivir revealed a synergistic effect, suggesting potential combination therapies to enhance efficacy and mitigate resistance. Our findings highlight the efficacy and safety of sialylated filamentous bacteriophages as promising influenza inhibitors. Moreover, the versatility of M13 phages for surface modifications offers avenues for further engineering to enhance therapeutic and preventive performance.
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Affiliation(s)
- Jinhyo Chung
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Sehoon Kim
- BIO-IT Foundry Technology Institute, Pusan National University, Busan, 46241, Republic of Korea
| | - Jiyoon Jeong
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Doyeon Kim
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Anna Jo
- BIO-IT Foundry Technology Institute, Pusan National University, Busan, 46241, Republic of Korea
| | - Hwa Young Kim
- BIO-IT Foundry Technology Institute, Pusan National University, Busan, 46241, Republic of Korea
| | - Jaehyeon Hwang
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Dae-Hyuk Kweon
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - So Young Yoo
- BIO-IT Foundry Technology Institute, Pusan National University, Busan, 46241, Republic of Korea.
| | - Woo-Jae Chung
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, 16419, Republic of Korea; Center for Biologics, Sungkyunkwan University, Suwon, 16419, Republic of Korea; Center for Study of Emerging and Re-emerging Viruses, Korea Virus Research Institute, Institute for Basic Science (IBS), Daejeon, 34126, Republic of Korea.
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2
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Li B, Zhang J, Shen C, Zong T, Zhao C, Zhao Y, Lu Y, Sun S, Zhu H. Application of polymerized porcine hemoglobin in the ex vivo normothermic machine perfusion of rat livers. Front Bioeng Biotechnol 2022; 10:1072950. [PMID: 36686244 PMCID: PMC9854803 DOI: 10.3389/fbioe.2022.1072950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 11/22/2022] [Indexed: 12/04/2022] Open
Abstract
Background: In contrast to traditional static cold preservation of donor livers, normothermic machine perfusion (NMP) may reduce preservation injury, improve graft viability and potentially allows ex vivo assessment of graft viability before transplantation. The polymerized porcine hemoglobin is a kind of hemoglobin oxygen carrier prepared by crosslinking porcine hemoglobin by glutaraldehyde to form a polymer. The pPolyHb has been proved to have the ability of transporting oxygen which could repair the organ ischemia-reperfusion injury in rats. Objective: In order to evaluate the effectiveness of rat liver perfusion in vitro based on pPolyHb, we established the NMP system, optimized the perfusate basic formula and explored the optimal proportion of pPolyHb and basal perfusate. Methods: The liver was removed and perfused for 6 h at 37°C. We compared the efficacy of liver perfusion with different ratios of pPolyHb. Subsequently, compared the perfusion effect using Krebs Henseleit solution and pPolyHb perfusate of the optimal proportion, and compared with the liver preserved with UW solution. At 0 h, 1 h, 3 h and 6 h after perfusion, appropriate samples were collected for blood gas analysis and liver injury indexes detection. Some tissue samples were collected for H&E staining and TUNEL staining to observe the morphology and detect the apoptosis rate of liver cells. And we used Western Blot test to detect the expression of Bcl-2 and Bax in the tissues. Results: According to the final results, the optimal addition ratio of pPolyHb was 24%. By comparing the values of Bcl-2/Bax, the apoptosis rate of pPolyHb group was significantly reduced. Under this ratio, the results of H&E staining and TUNEL staining showed that the liver morphology was well preserved without additional signs of hepatocyte ischemia, biliary tract injury, or hepatic sinusoid injury, and hepatocyte apoptosis was relatively mild. Conclusion: Through the above-mentioned study we show that within 6 h of perfusion based on pPolyHb, liver physiological and biochemical activities may essentially be maintained in vitro. This study demonstrates that a pPolyHb-based perfusate is feasible for NMP of rat livers. This opens up a prospect for further research on NMP.
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Affiliation(s)
- Bin Li
- The College of Life Sciences, Northwest University, Xi’an, Shaanxi, China,National Engineering Research Center for Miniaturized Detection Systems, Northwest University, Xi’an, China,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Northwest University, Xi’an, China
| | - Jie Zhang
- The College of Life Sciences, Northwest University, Xi’an, Shaanxi, China
| | - Chuanyan Shen
- The College of Life Sciences, Northwest University, Xi’an, Shaanxi, China
| | - Tingting Zong
- The College of Life Sciences, Northwest University, Xi’an, Shaanxi, China
| | - Cong Zhao
- The College of Life Sciences, Northwest University, Xi’an, Shaanxi, China
| | - Yumin Zhao
- The College of Life Sciences, Northwest University, Xi’an, Shaanxi, China
| | - Yunhua Lu
- The College of Life Sciences, Northwest University, Xi’an, Shaanxi, China
| | - Siyue Sun
- The College of Life Sciences, Northwest University, Xi’an, Shaanxi, China
| | - Hongli Zhu
- The College of Life Sciences, Northwest University, Xi’an, Shaanxi, China,National Engineering Research Center for Miniaturized Detection Systems, Northwest University, Xi’an, China,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Northwest University, Xi’an, China,*Correspondence: Hongli Zhu,
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3
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Muller CR, Williams AT, Walser C, Eaker AM, Sandoval JL, Cuddington CT, Wolfe SR, Palmer AF, Cabrales P. Safety and efficacy of human polymerized hemoglobin on guinea pig resuscitation from hemorrhagic shock. Sci Rep 2022; 12:20480. [PMID: 36443351 PMCID: PMC9703428 DOI: 10.1038/s41598-022-23926-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 11/07/2022] [Indexed: 11/29/2022] Open
Abstract
For the past thirty years, hemoglobin-based oxygen carriers (HBOCs) have been under development as a red blood cell substitute. Side-effects such as vasoconstriction, oxidative injury, and cardiac toxicity have prevented clinical approval of HBOCs. Recently, high molecular weight (MW) polymerized human hemoglobin (PolyhHb) has shown positive results in rats. Studies have demonstrated that high MW PolyhHb increased O2 delivery, with minimal effects on blood pressure, without vasoconstriction, and devoid of toxicity. In this study, we used guinea pigs to evaluate the efficacy and safety of high MW PolyhHb, since like humans guinea pigs cannot produce endogenous ascorbic acid, which limits the capacity of both species to deal with oxidative stress. Hence, this study evaluated the efficacy and safety of resuscitation from severe hemorrhagic shock with high MW PolyhHb, fresh blood, and blood stored for 2 weeks. Animals were randomly assigned to each experimental group, and hemorrhage was induced by the withdrawal of 40% of the blood volume (BV, estimated as 7.5% of body weight) from the carotid artery catheter. Hypovolemic shock was maintained for 50 min. Resuscitation was implemented by infusing 25% of the animal's BV with the different treatments. Hemodynamics, blood gases, total hemoglobin, and lactate were not different before hemorrhage and during shock between groups. The hematocrit was lower for the PolyhHb group compared to the fresh and stored blood groups after resuscitation. Resuscitation with stored blood had lower blood pressure compared to fresh blood at 2 h. There was no difference in mean arterial pressure between groups at 24 h. Resuscitation with PolyhHb was not different from fresh blood for most parameters. Resuscitation with PolyhHb did not show any remarkable change in liver injury, inflammation, or cardiac damage. Resuscitation with stored blood showed changes in liver function and inflammation, but no kidney injury or systemic inflammation. Resuscitation with stored blood after 24 h displayed sympathetic hyper-activation and signs of cardiac injury. These results suggest that PolyhHb is an effective resuscitation alternative to blood. The decreased toxicities in terms of cardiac injury markers, vital organ function, and inflammation following PolyhHb resuscitation in guinea pigs indicate a favorable safety profile. These results are promising and support future studies with this new generation of PolyhHb as alternative to blood when blood is unavailable.
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Affiliation(s)
- Cynthia R Muller
- Department of Bioengineering, University of California, 0412, 9500 Gilman Dr. La Jolla, San Diego, CA, 92093-0412, USA
| | - Alexander T Williams
- Department of Bioengineering, University of California, 0412, 9500 Gilman Dr. La Jolla, San Diego, CA, 92093-0412, USA
| | - Cynthia Walser
- Department of Bioengineering, University of California, 0412, 9500 Gilman Dr. La Jolla, San Diego, CA, 92093-0412, USA
| | - Allyn M Eaker
- Department of Bioengineering, University of California, 0412, 9500 Gilman Dr. La Jolla, San Diego, CA, 92093-0412, USA
| | - Jose Luis Sandoval
- Department of Bioengineering, University of California, 0412, 9500 Gilman Dr. La Jolla, San Diego, CA, 92093-0412, USA
| | - Clayton T Cuddington
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, USA
| | - Savannah R Wolfe
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, USA
| | - Andre F Palmer
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, USA
| | - Pedro Cabrales
- Department of Bioengineering, University of California, 0412, 9500 Gilman Dr. La Jolla, San Diego, CA, 92093-0412, USA.
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Charbe NB, Castillo F, Tambuwala MM, Prasher P, Chellappan DK, Carreño A, Satija S, Singh SK, Gulati M, Dua K, González-Aramundiz JV, Zacconi FC. A new era in oxygen therapeutics? From perfluorocarbon systems to haemoglobin-based oxygen carriers. Blood Rev 2022; 54:100927. [PMID: 35094845 DOI: 10.1016/j.blre.2022.100927] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 12/14/2021] [Accepted: 01/12/2022] [Indexed: 02/09/2023]
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5
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Qi J, He Y, Shen L, Yu W, Hu T. Conjugation of Hemoglobin and Mannan Markedly Improves the Immunogenicity of Domain III of the Zika Virus E Protein: Structural and Immunological Study. Bioconjug Chem 2021; 32:328-338. [PMID: 33522239 DOI: 10.1021/acs.bioconjchem.0c00700] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Zika virus (ZIKV) leads to congenital microcephaly and anomalies and severe neurological diseases such as Guillain-Barre syndrome. Safe and effective vaccines are necessitated to deal with these severe health threats. As an ideal antigen, the domain III of the envelope protein (EDIII) of ZIKV can evoke potent neutralizing antibodies without any antibody-dependent enhancement (ADE) effect. However, EDIII necessitates to be formulated with an antigen delivery system or adjuvants to improve its immunogenicity. Hemoglobin (Hb) regulates inflammation, cytokine levels, and activate macrophage. Mannan is a polysaccharide of the fungal cell wall with an immunomodulatory activity. In this study, EDIII was conjugated with Hb and mannan, using the disulfide bond as the linker. Hb and mannan both functioned as the adjuvants. Conjugation of Hb and mannan acted as the delivery system for EDIII. The structure of EDIII was essentially maintained upon conjugation of Hb and mannan. The intracellular release of EDIII from the conjugate (HM-EDIII-2) was achieved by reduction of the glutathione-sensitive disulfide bond. As compared with EDIII, HM-EDIII-2 elicited high EDIII-specific IgG titers and high levels of Th1-type cytokines (IFN-γ and IL-2) and Th2-type cytokines (IL-5 and IL-10), along with no apparent toxicity to the organs. Moreover, the pharmacokinetic study revealed a prolonged serum exposure of HM-EDIII-2 to the immune cells. Thus, HM-EDIII-2 could boost a strong humoral and cellular immune response to EDIII. Our study was expected to provide the feasibility necessary to develop a robust and potentially safe ZIKV vaccine.
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Affiliation(s)
- Jinming Qi
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.,University of Chinese Academy of Sciences, Beijing 100190, China
| | - Yunxia He
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.,University of Chinese Academy of Sciences, Beijing 100190, China
| | - Lijuan Shen
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Weili Yu
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Tao Hu
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
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6
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Zimmerman D, DiIusto M, Dienes J, Abdulmalik O, Elmer JJ. Direct comparison of oligochaete erythrocruorins as potential blood substitutes. Bioeng Transl Med 2017; 2:212-221. [PMID: 29313031 PMCID: PMC5675092 DOI: 10.1002/btm2.10067] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 06/14/2017] [Accepted: 06/18/2017] [Indexed: 12/11/2022] Open
Abstract
While many blood substitutes are based on mammalian hemoglobins (e.g., human hemoglobin, HbA), the naturally extracellular hemoglobins of invertebrates (a.k.a. erythrocruorins, Ecs) are intriguing alternative oxygen carriers. Specifically, the erythrocruorin of Lumbricus terrestris has been shown to effectively deliver oxygen in mice and rats without the negative side effects observed with HbA. In this study, the properties of six oligochaete Ecs (Lumbricus terrestris, Eisenia hortensis, Eisenia fetida, Eisenia veneta, Eudrilus eugeniae, and Amynthas gracilis) were compared in vitro to identify the most promising blood substitute candidate(s). Several metrics were used to compare the Ecs, including their oxidation rates, dissociation at physiological pH, thermal stability, and oxygen transport characteristics. Overall, the Ecs of Lumbricus terrestris (LtEc) and Eisenia fetida (EfEc) were identified as promising candidates, since they demonstrated high thermal and oligomeric stability, while also exhibiting relatively low oxidation rates. Interestingly, the O2 affinity of LtEc (P50 = 26.25 mmHg at 37 °C) was also observed to be uniquely lower than EfEc and all of the other Ecs (P50 = 9.29–13.62 mmHg). Subsequent alignment of the primary sequences of LtEc and EfEc revealed several significant amino acid substitutions within the D subunit interfaces that may be responsible for this significant change in O2 affinity. Nonetheless, these results show that LtEc and EfEc are promising potential blood substitutes that are resistant to oxidation and denaturation, but additional experiments will need to be conducted to determine their safety, efficacy, and the effects of their disparate oxygen affinities in vivo.
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Affiliation(s)
- Devon Zimmerman
- Dept. of Chemical Engineering Villanova University 800 East Lancaster Avenue Villanova PA 19085
| | - Matthew DiIusto
- Dept. of Chemical Engineering Villanova University 800 East Lancaster Avenue Villanova PA 19085
| | - Jack Dienes
- Dept. of Chemical Engineering Villanova University 800 East Lancaster Avenue Villanova PA 19085
| | - Osheiza Abdulmalik
- Div. of Hematology, Abramson Building The Children's Hospital of Philadelphia 34th St. & Civic Center Blvd Philadelphia PA 19104
| | - Jacob J Elmer
- Dept. of Chemical Engineering Villanova University 800 East Lancaster Avenue Villanova PA 19085
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7
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Zhao J, Yan C, Xu L, Yan K, Feng B, Zhao M, Niu G, Wu M, Chen C, Zhu H. The effect of pPolyHb on hemodynamic stability and mesenteric microcirculation in a rat model of hemorrhagic shock. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2017; 45:677-685. [PMID: 28129711 DOI: 10.1080/21691401.2017.1282869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The effects of polymerized porcine hemoglobin (pPolyHb) on hemodynamic stability and maintenance of mesenteric microvascular function were explored in a rat model of hemorrhagic shock (HS). Following controlled hemorrhage, rats were infused with equal volumes of either pPolyHb, hetastarch (HES), or red blood cell (RBC). The results showed that pPolyHb was superior to HES and RBC in restoring hemodynamic stability and reversing anaerobic metabolism. We observed a reduction in the diameter of mesenteric microvasculature after HS. Resuscitation with pPolyHb and RBC was able to restore the diameters of the venules and arterioles, whereas HES failed to restore the diameters during the observation period.
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Affiliation(s)
- Jing Zhao
- a College of Life Science, Northwest University , Xi'an , P. R. China.,d Department of Anesthesiology , Xijing Hospital, Fourth Military Medical University , Xi'an , P. R. China
| | - Chengbin Yan
- a College of Life Science, Northwest University , Xi'an , P. R. China
| | - Lijuan Xu
- a College of Life Science, Northwest University , Xi'an , P. R. China
| | - Kunping Yan
- a College of Life Science, Northwest University , Xi'an , P. R. China
| | - Bao Feng
- c Shaanxi Lifegen Co. Ltd , Xi'an , P. R. China
| | - Mengye Zhao
- a College of Life Science, Northwest University , Xi'an , P. R. China
| | - Geng Niu
- a College of Life Science, Northwest University , Xi'an , P. R. China
| | - Mengdi Wu
- a College of Life Science, Northwest University , Xi'an , P. R. China
| | - Chao Chen
- a College of Life Science, Northwest University , Xi'an , P. R. China.,b National Engineering Research Center for Miniaturized Detection Systems, Northwest University , Xi'an , P. R. China
| | - Hongli Zhu
- a College of Life Science, Northwest University , Xi'an , P. R. China.,b National Engineering Research Center for Miniaturized Detection Systems, Northwest University , Xi'an , P. R. China
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8
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Wang L, Liu F, Yan K, Pan W, Xu L, Liu H, Yan C, Chen C, Zhu H. Effects of resuscitation with polymerized porcine hemoglobin (pPolyHb) on hemodynamic stability and oxygen delivery in a rat model of hemorrhagic shock. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2016; 45:51-57. [DOI: 10.1080/21691401.2016.1185728] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Li Wang
- College of Life Science, Northwest University, Xi’an, PR China
- National Engineering Research Center for Miniaturized Detection Systems, Northwest University, Xi’an, PR China
| | - Fang Liu
- The Reproductive Centre, Tangdu Hospital, The Forth Military Medical University, Xi’an, PR China
| | - Kunping Yan
- College of Life Science, Northwest University, Xi’an, PR China
- National Engineering Research Center for Miniaturized Detection Systems, Northwest University, Xi’an, PR China
| | - Wencan Pan
- College of Life Science, Northwest University, Xi’an, PR China
- National Engineering Research Center for Miniaturized Detection Systems, Northwest University, Xi’an, PR China
| | - Lijuan Xu
- College of Life Science, Northwest University, Xi’an, PR China
- National Engineering Research Center for Miniaturized Detection Systems, Northwest University, Xi’an, PR China
| | - Huifang Liu
- College of Life Science, Northwest University, Xi’an, PR China
- National Engineering Research Center for Miniaturized Detection Systems, Northwest University, Xi’an, PR China
| | - Chengbin Yan
- College of Life Science, Northwest University, Xi’an, PR China
- National Engineering Research Center for Miniaturized Detection Systems, Northwest University, Xi’an, PR China
| | - Chao Chen
- College of Life Science, Northwest University, Xi’an, PR China
- National Engineering Research Center for Miniaturized Detection Systems, Northwest University, Xi’an, PR China
| | - Hongli Zhu
- College of Life Science, Northwest University, Xi’an, PR China
- National Engineering Research Center for Miniaturized Detection Systems, Northwest University, Xi’an, PR China
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9
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Zimmerman D, Dienes J, Abdulmalik O, Elmer JJ. Purification of diverse hemoglobins by metal salt precipitation. Protein Expr Purif 2015; 125:74-82. [PMID: 26363116 DOI: 10.1016/j.pep.2015.09.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 09/05/2015] [Accepted: 09/05/2015] [Indexed: 11/15/2022]
Abstract
Although donated blood is the preferred material for transfusion, its limited availability and stringent storage requirements have motivated the development of blood substitutes. The giant extracellular hemoglobin (aka erythrocruorin) of the earthworm Lumbricus terrestris (LtEc) has shown promise as a blood substitute, but an efficient purification method for LtEc must be developed to meet the potential large demand for blood substitutes. In this work, an optimized purification process that uses divalent and trivalent metal salts to selectively precipitate human, earthworm, and bloodworm hemoglobin (HbA, LtEc, and GdHb, respectively) from crude solutions was developed. Although several metal ions were able to selectively precipitate LtEc, Zn(2+) and Ni(2+) provided the lowest heme oxidation and highest overall yield of LtEc. In contrast, Zn(2+) was the only metal ion that completely precipitated HbA and GdHb. Polyacrylamide gel electrophoresis (PAGE) analysis shows that metal precipitation removes several impurities to provide highly pure hemoglobin samples. Heme oxidation levels were relatively low for Zn(2+)-purified HbA and LtEc (2.4±1.3% and 5.3±2.1%, respectively), but slightly higher for Ni(2+)-purified LtEc (8.4±1.2%). The oxygen affinity and cooperativity of the precipitated samples are also identical to samples purified with tangential flow filtration (TFF) alone, indicating the metal precipitation does not significantly affect the function of the hemoglobins. Overall, these results show that hemoglobins from several different species can be highly purified using a combination of metal (Zn(2+)) precipitation and tangential flow filtration.
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Affiliation(s)
- Devon Zimmerman
- Villanova University, 800 East Lancaster Avenue, Villanova, PA 19085, United States
| | - Jack Dienes
- Villanova University, 800 East Lancaster Avenue, Villanova, PA 19085, United States
| | - Osheiza Abdulmalik
- Division of Hematology, Abramson Building, The Children's Hospital of Philadelphia, 34th St. & Civic Center Blvd, Philadelphia, PA 19104, United States
| | - Jacob J Elmer
- Villanova University, 800 East Lancaster Avenue, Villanova, PA 19085, United States.
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Xie Z, Liu L, Zhu W, Liu H, Wang L, Zhang J, Chen C, Zhu H. The protective effect of polymerized porcine hemoglobin (pPolyHb) on transient focal cerebral ischemia/reperfusion injury. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2015; 43:180-5. [PMID: 25939745 DOI: 10.3109/21691401.2015.1037886] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Glutaraldehyde-polymerized porcine hemoglobin (pPolyHb) is a hemoglobin-based oxygen carrier currently being developed as a potential red blood cell substitute. We assessed the protective effect of pPolyHb on transient focal cerebral ischemia/reperfusion (I/R) injury. Several outcomes were tested, including infarct size, neurological score, production of inflammatory factors, and markers of oxidative status. Our results show that pPolyHb can not only significantly reduce infarct volume and improve neurological score, but can also inhibit the expression of TNF-α and IL-1β. Furthermore, the generation of MDA and MPO was reduced by pPolyHb. We conclude that pPolyHb has a positive effect on transient focal cerebral I/R injury.
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Affiliation(s)
- Zhilan Xie
- College of Life Science, Northwest University , Xi'an , P. R. China
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11
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Xue H, Yan K, Zhao X, Zhu W, Liu L, Xie Z, Zhu H, Chen C. Pretreatment with pPolyHb attenuates H2O2-induced endothelial cell injury through inhibition of JNK/p38 MAPK pathway by upregulation of heme oxygenase-1. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2015; 43:163-73. [PMID: 25615876 DOI: 10.3109/21691401.2014.1001494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Polymerized porcine hemoglobin (pPolyHb) exhibits a protective effect on ischemia/reperfusion of organ grafts. A series of experiments were performed to explore the underlying cytoprotective mechanisms of pPolyHb pretreatment on H2O2-induced cell death and apoptosis. The results showed that the pretreatment augmented heme oxygenase-1 (HO-1) expression, and at the same time, decreased the phosphorylation of JNK/p38 mitogen-activated protein kinase (MAPK) and intracellular ROS generation in H2O2-treated HUVECs. Moreover, the inhibition of HO-1 expression by tin porphyrin (SnPP) abolished the protective effects of pPolyHb, which suggested that the cytoprotective effect of pPolyHb involves upregulating HO-1 and subsequently decreasing the phosphorylation of the JNK and p38 MAPK and ROS generation.
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Affiliation(s)
- Haiyan Xue
- College of Life Science, Northwest University , Xi'an , P. R. China
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12
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Huang H, Ma J, Zhu W, Sun J, Yan K, Song B, Xue Y, Xin J, Pan W, Zhu H, Chen C. The application of polymerized porcine hemoglobin (pPolyHb) in the rat small bowel preservation. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2014; 42:289-95. [PMID: 24564347 DOI: 10.3109/21691401.2013.845571] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Small bowel transplantation (SBTx) has become a standard clinical treatment for short bowel syndrome or irreversible intestinal function failure. Optimum preservation of the organ is essential for the success of transplantation. In this study, pPolyHb was used as an additive to hypertonic citrate adenine solution (HCA) to provide oxygen for rat small bowel transplant. Rat small bowels were preserved in HCA, HCA with pPolyHb, and University of Wisconsin solution (UW) for 12, 24, and 36 h, respectively. The results suggested that the preservation effect of HCA with pPolyHb was comparable with the UW solution, and more effective than the HCA solution.
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Affiliation(s)
- He Huang
- College of Life Science, Northwest University , Xi'an , P. R. China
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Buehler PW, Baek JH, Lisk C, Connor I, Sullivan T, Kominsky D, Majka S, Stenmark KR, Nozik-Grayck E, Bonaventura J, Irwin DC. Free hemoglobin induction of pulmonary vascular disease: evidence for an inflammatory mechanism. Am J Physiol Lung Cell Mol Physiol 2012; 303:L312-26. [PMID: 22728465 DOI: 10.1152/ajplung.00074.2012] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Cell-free hemoglobin (Hb) exposure may be a pathogenic mediator in the development of pulmonary arterial hypertension (PAH), and when combined with chronic hypoxia the potential for exacerbation of PAH and vascular remodeling is likely more pronounced. We hypothesized that Hb may contribute to hypoxia-driven PAH collectively as a prooxidant, inflammatory, and nitric oxide (NO) scavenger. Using programmable micropump technology, we exposed male Sprague-Dawley rats housed under room air or hypoxia to 12 or 30 mg per day Hb for 3, 5, and 7 wk. Blood pressure, cardiac output, right ventricular hypertrophy, and indexes of pulmonary vascular remodeling were evaluated. Additionally, markers of oxidative stress, NO bioavailability and inflammation were determined. Hb increased pulmonary arterial (PA) pressure, pulmonary vessel wall stiffening, and right heart hypertrophy with temporal and dose dependence in both room air and hypoxic cohorts. Hb induced a modest increase in plasma oxidative stress markers (malondialdehyde and 4-hydroxynonenal), no change in NO bioavailability, and increased lung ICAM protein expression. Treatment with the antioxidant Tempol attenuated Hb-induced pulmonary arterial wall thickening, but not PA pressures or ICAM expression. Chronic exposure to low plasma Hb concentrations (range = 3-10 μM) lasting up to 7 wk in rodents induces pulmonary vascular disease via inflammation and to a lesser extent by Hb-mediated oxidation. Tempol demonstrated a modest effect on the attenuation of Hb-induced pulmonary vascular disease. NO bioavailability was found to be of minimal importance in this model.
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Affiliation(s)
- Paul W Buehler
- Laboratory of Biochemistry and Vascular Biology, Office of Blood Research and Review, Center for Biologics Evaluation and Research, U.S. Food and Drug Administration, Bethesda, MD, USA
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