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Du J, Meki I, Li Q, Liu Y, Zhu Z, Pan C, Xia Y, Fu L, Yang L, Zhang S, Yin C, Luo Y, Wang T, Liu B, Chen X. A non-toxic recombinant Clostridium septicum α toxin induces protective immunity in mice and rabbits. Toxicon 2023; 233:107234. [PMID: 37543293 DOI: 10.1016/j.toxicon.2023.107234] [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: 04/10/2023] [Revised: 07/31/2023] [Accepted: 08/01/2023] [Indexed: 08/07/2023]
Abstract
Clostridium septicum alpha toxin (CSA) plays significant roles in ruminant's braxy. Genetically engineered CSA has been shown to function as a potential vaccine candidate in the prevention of the disease caused by Clostridium septicum. In the present study, we synthesized a non-toxic recombinant, rCSAm4/TMD by introducing four amino acid substitutions (C86L/N296A/H301A/W342A) and 11-amino-acid deletion (residues 212 to 222). Compared to recombinant CSA, rCSAm4/TMD showed no cytotoxicity to MDCK cells and was not fatal to mice. Moreover, rCSAm4/TMD could protect immunized mice against 5 × mouse LD100 (100% lethal dose) of crude CSA without obvious pathological change. Most importantly, rabbits immunized with rCSAm4/TMD produced high titers of neutralizing antibodies which protected the rabbits against crude CSA challenge. These data suggest that genetically detoxified rCSAm4/TMD is a potential subunit vaccine candidate against braxy.
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Affiliation(s)
- Jige Du
- China Institute of Veterinary Drug Control, Beijing, People's Republic of China
| | - Irene Meki
- International Atomic Energy Agency, Vienna, Austria
| | - Qianlin Li
- China Institute of Veterinary Drug Control, Beijing, People's Republic of China
| | - Ying Liu
- China Institute of Veterinary Drug Control, Beijing, People's Republic of China
| | - Zhen Zhu
- China Institute of Veterinary Drug Control, Beijing, People's Republic of China
| | - Chenfan Pan
- China Institute of Veterinary Drug Control, Beijing, People's Republic of China
| | - Yingju Xia
- China Institute of Veterinary Drug Control, Beijing, People's Republic of China
| | - Lizhi Fu
- Chongqing Academy of Animal Sciences, Chongqing, 402460, China
| | - Liu Yang
- Chongqing Academy of Animal Sciences, Chongqing, 402460, China
| | - Suhui Zhang
- Chongqing Academy of Animal Sciences, Chongqing, 402460, China
| | - Chunsheng Yin
- China Institute of Veterinary Drug Control, Beijing, People's Republic of China
| | - Yufeng Luo
- China Institute of Veterinary Drug Control, Beijing, People's Republic of China
| | - Tuanjie Wang
- China Institute of Veterinary Drug Control, Beijing, People's Republic of China.
| | - Bo Liu
- China Institute of Veterinary Drug Control, Beijing, People's Republic of China; International Atomic Energy Agency, Vienna, Austria.
| | - Xiaoyun Chen
- China Institute of Veterinary Drug Control, Beijing, People's Republic of China.
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Lyle CA, Caputo FJ. Abdominal aortic endograft infection with Clostridium difficile. Vascular 2023; 31:174-177. [PMID: 34839756 DOI: 10.1177/17085381211053689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVES The increase in endovascular aortic aneurysm repair has led to increasing incidence of aortic endograft infections. Additionally, more atypical organisms are being identified as pathogens. We report on a rare aortic endograft infection to further characterize and understand these infections. METHODS We report a Clostridium difficile culture-positive aortic endograft infection in an 82-year-old male 3 years after endovascular abdominal aortic aneurysm repair. RESULTS The patient underwent successful open, complete explant of his endograft and in-situ repair using a rifampin-soaked Dacron graft. He continues to do well. CONCLUSIONS Aortic endograft infections are a complex problem further complicated by rare and virulent infections. Unless the patient is at prohibitive risk, the management of infected aortic endografts is surgical graft explant and in-situ or extra-anatomic reconstruction due to the exceedingly high mortality rate with non-operative management.
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Affiliation(s)
- Cara A Lyle
- Department of Vascular Surgery, 2569Cleveland Clinic, Cleveland, OH, USA
| | - Francis J Caputo
- Department of Vascular Surgery, 2569Cleveland Clinic, Cleveland, OH, USA
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Kirchweger P, Wundsam H, Bosse F, Kupferthaler A, Huemer R, Függer R. Prospects of conservative treatment for Clostridium septicum–associated aortitis. J Vasc Surg Cases Innov Tech 2022; 8:227-231. [PMID: 35493338 PMCID: PMC9046111 DOI: 10.1016/j.jvscit.2022.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 03/04/2022] [Indexed: 11/30/2022] Open
Abstract
Clostridium septicum bacteremia is a rare (72 cases reported) aneurysm-inducing disease that has resulted in a 6-month mortality of 100% when treated conservatively. We report the case of a patient who was completely symptom free at 6 months of follow-up but who ultimately died at 8.9 months after aortic rupture. In compliance with the patient’s choice, a long-time antibiotic regimen was applied, instead of the surgical approach recommended by our surgical department. The use of an antibiotic regimen represents an option for patients unfit for surgery or as a bridge to surgery for damage control; however, aortic repair represents the only curative approach. Definitive antibiotic treatment is limited to a palliative approach for patients with C. septicum aortitis and has been accompanied by 100% 1-year mortality (90-day mortality, 84.2%).
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Affiliation(s)
- Patrick Kirchweger
- Department of Surgery, Ordensklinikum Linz, Linz, Austria
- Johannes Kepler University Linz, Medical Faculty, Linz, Austria
- Correspondence: Patrick Kirchweger, MD, Department of Surgery, Ordensklinikum Linz, Seilerstätte 4, Linz 4010, Austria
| | - Helwig Wundsam
- Department of Surgery, Ordensklinikum Linz, Linz, Austria
| | - Felix Bosse
- Department of Surgery, Ordensklinikum Linz, Linz, Austria
| | - Alexander Kupferthaler
- Department of Diagnostic and Interventional Radiology, Ordensklinikum Linz, Linz, Austria
| | - Reinhold Huemer
- Department of Vascular Surgery, Brothers of Saint John of God, Linz, Austria
| | - Reinhold Függer
- Department of Surgery, Ordensklinikum Linz, Linz, Austria
- Johannes Kepler University Linz, Medical Faculty, Linz, Austria
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Patrick K, Helwig W, Felix B, Antonia F, Theresa K, Manfred K, Alexander K, Gernot B, Daniela K, Magdalena F, Reinhold H, Matthias B, Reinhold F. Systematic literature review and meta-analysis of Clostridium septicum aortitis. J Vasc Surg 2022; 76:595-604.e1. [DOI: 10.1016/j.jvs.2022.02.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 02/24/2022] [Indexed: 11/16/2022]
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5
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Oishi A, Asai T, Kajimoto K, Kamikawa Y, Amano A. Mycotic Aortic Arch Aneurysm Caused by Clostridium perfringens. Cureus 2022; 14:e21135. [PMID: 35165587 PMCID: PMC8831465 DOI: 10.7759/cureus.21135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/11/2022] [Indexed: 11/05/2022] Open
Abstract
We report a case of a 79-year-old man for a mycotic aortic arch aneurysm caused by Clostridium perfringens. The patient who had been hospitalized for cholangitis two months prior revisited the hospital for fever and left precordial pain. He was suspected of an infected aortic aneurysm in the distal arch due to emphysematous changes observed. After antibiotics treatment, the emphysematous changes disappeared. However, he underwent urgent total arch replacement due to a new ulcer-like projection and enlargement of the aortic aneurysm, which were observed at that time. Clostridium-infected infectious aneurysms require not only treatment for vascular lesions but also scrutiny of complications, such as cancer.
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Dueña L, Varona J, Bereciartua E, López L. In the shadow of the pandemic. ENFERMEDADES INFECCIOSAS Y MICROBIOLOGIA CLINICA (ENGLISH ED.) 2022; 40:39-41. [PMID: 34764066 DOI: 10.1016/j.eimce.2021.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 03/04/2021] [Indexed: 06/13/2023]
Affiliation(s)
- Luis Dueña
- Servicio de Medicina Interna, Hospital Universitario de Cruces, Baracaldo, Vizcaya, Spain.
| | - Jimena Varona
- Servicio de Medicina Interna, Hospital Universitario de Cruces, Baracaldo, Vizcaya, Spain
| | - Elena Bereciartua
- Unidad de Enfermedades Infecciosas, Hospital Universitario de Cruces, Baracaldo, Vizcaya, Spain
| | - Leyre López
- Servicio de Microbiología, Hospital Universitario de Cruces, Baracaldo, Vizcaya, Spain
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Ramkumar R, Shiraev T, Loa J, Qasabian R. A case of clostridium septicum aortitis. ANZ J Surg 2021; 92:1539-1541. [PMID: 34694691 DOI: 10.1111/ans.17319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/28/2021] [Accepted: 10/05/2021] [Indexed: 11/30/2022]
Affiliation(s)
| | | | - Jacky Loa
- Royal Prince Alfred Hospital, Camperdown, Australia
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Dueña L, Varona J, Bereciartua E, López L. In the shadow of the pandemic. Enferm Infecc Microbiol Clin 2021; 40:S0213-005X(21)00071-9. [PMID: 33867190 DOI: 10.1016/j.eimc.2021.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 03/02/2021] [Accepted: 03/04/2021] [Indexed: 11/26/2022]
Affiliation(s)
- Luis Dueña
- Servicio de Medicina Interna, Hospital Universitario de Cruces, Baracaldo, Vizcaya, España.
| | - Jimena Varona
- Servicio de Medicina Interna, Hospital Universitario de Cruces, Baracaldo, Vizcaya, España
| | - Elena Bereciartua
- Unidad de Enfermedades Infecciosas, Hospital Universitario de Cruces, Baracaldo, Vizcaya, España
| | - Leyre López
- Servicio de Microbiología, Hospital Universitario de Cruces, Baracaldo, Vizcaya, España
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