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Gimenes I, Spoladore J, Paranhos BA, Romasco T, Di Pietro N, Piattelli A, Mourão CF, Gomes Alves G. Assessment of Pyrogenic Response of Medical Devices and Biomaterials by the Monocyte Activation Test (MAT): A Systematic Review. Int J Mol Sci 2024; 25:7844. [PMID: 39063086 PMCID: PMC11276646 DOI: 10.3390/ijms25147844] [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: 06/24/2024] [Revised: 07/11/2024] [Accepted: 07/16/2024] [Indexed: 07/28/2024] Open
Abstract
Pyrogens are fever-inducing substances routinely investigated in health products through tests such as the Rabbit Pyrogen Test (RPT), the Limulus Amebocyte Lysate (LAL), and the Monocyte Activation Test (MAT). However, the applications of the MAT for medical devices and biomaterials remain limited. This work aimed to overview the studies evaluating the pyrogenicity of medical devices and biomaterials using the MAT, highlighting its successes and potential challenges. An electronic search was performed by December 2023 in PubMed, Scopus, and Web of Science, identifying 321 records which resulted in ten selected studies. Data were extracted detailing the tested materials, MAT variants, interferences, and comparisons between methods. Methodological quality was assessed using the ToxRTool, and the results were synthesized descriptively. The selected studies investigated various materials, including polymers, metals, and natural compounds, employing the different biological matrices of the MAT. Results showed the MAT's versatility, with successful detection of pyrogens in most materials tested, though variability in sensitivity was noted based on the material and testing conditions. Challenges remain in optimizing protocols for different material properties, such as determining the best methods for direct contact versus eluate testing and addressing the incubation conditions. In conclusion, the MAT demonstrates significant potential as a pyrogen detection method for medical devices and biomaterials. However, continued research is essential to address existing gaps, optimize protocols, and validate the test across a broader range of materials.
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Affiliation(s)
- Izabela Gimenes
- Post-Graduation Program in Science and Biotechnology, Fluminense Federal University, Niteroi 24220-900, Brazil; (I.G.); (J.S.)
| | - Janaína Spoladore
- Post-Graduation Program in Science and Biotechnology, Fluminense Federal University, Niteroi 24220-900, Brazil; (I.G.); (J.S.)
| | - Bruno Andrade Paranhos
- Carlos Chagas Filho Biophysics Institute, Federal University of Rio de Janeiro, Rio de Janeiro 21941-170, Brazil;
| | - Tea Romasco
- Division of Dental Research Administration, Tufts University School of Dental Medicine, Boston, MA 02111, USA;
- Department of Medical, Oral and Biotechnological Sciences, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
- Center for Advanced Studies and Technology (CAST), “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
| | - Natalia Di Pietro
- Department of Medical, Oral and Biotechnological Sciences, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
- Center for Advanced Studies and Technology (CAST), “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
| | - Adriano Piattelli
- School of Dentistry, Saint Camillus International, University of Health and Medical Sciences, 00131 Rome, Italy;
| | - Carlos Fernando Mourão
- Department of Periodontology, Tufts University School of Dental Medicine, Boston, MA 02111, USA
| | - Gutemberg Gomes Alves
- Cell and Molecular Biology Department, Institute of Biology, Fluminense Federal University, Niteroi 24220-900, Brazil;
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2
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He Q, Yu CF, Wu G, Wang KQ, Ni YB, Guo X, Fu ZH, Wang L, Tan DJ, Gao H, Wang C, Chen G, Chen XH, Chen B, Wang JZ. A novel alternative for pyrogen detection based on a transgenic cell line. Signal Transduct Target Ther 2024; 9:33. [PMID: 38369543 PMCID: PMC10874988 DOI: 10.1038/s41392-024-01744-0] [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: 06/07/2023] [Revised: 10/07/2023] [Accepted: 01/10/2024] [Indexed: 02/20/2024] Open
Abstract
Pyrogen, often as a contaminant, is a key indicator affecting the safety of almost all parenteral drugs (including biologicals, chemicals, traditional Chinese medicines and medical devices). It has become a goal to completely replace the in vivo rabbit pyrogen test by using the in vitro pyrogen test based on the promoted 'reduction, replacement and refinement' principle, which has been highly considered by regulatory agencies from different countries. We used NF-κB, a central signalling molecule mediating inflammatory responses, as a pyrogenic marker and the monocyte line THP-1 transfected with a luciferase reporter gene regulated by NF-κB as an in vitro model to detect pyrogens by measuring the intensity of a fluorescence signal. Here, we show that this test can quantitatively and sensitively detect endotoxin (lipopolysaccharide from different strains) and nonendotoxin (lipoteichoic acid, zymosan, peptidoglycan, lectin and glucan), has good stability in terms of NF-κB activity and cell phenotypes at 39 cell passages and can be applied to detect pyrogens in biologicals (group A & C meningococcal polysaccharide vaccine; basiliximab; rabies vaccine (Vero cells) for human use, freeze-dried; Japanese encephalitis vaccine (Vero cells), inactivated; insulin aspart injection; human albumin; recombinant human erythropoietin injection (CHO Cell)). The within-laboratory reproducibility of the test in three independent laboratories was 85%, 80% and 80% and the interlaboratory reproducibility among laboratories was 83.3%, 95.6% and 86.7%. The sensitivity (true positive rate) and specificity (true negative rate) of the test were 89.9% and 90.9%, respectively. In summary, the test provides a novel alternative for pyrogen detection.
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Affiliation(s)
- Qing He
- National Institutes for Food and Drug Control, Beijing, China
| | - Chuan-Fei Yu
- National Institutes for Food and Drug Control, Beijing, China
| | - Gang Wu
- School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, China
| | - Kai-Qin Wang
- National Institutes for Food and Drug Control, Beijing, China
| | - Yong-Bo Ni
- National Institutes for Food and Drug Control, Beijing, China
| | - Xiao Guo
- National Institutes for Food and Drug Control, Beijing, China
| | - Zhi-Hao Fu
- National Institutes for Food and Drug Control, Beijing, China
| | - Lan Wang
- National Institutes for Food and Drug Control, Beijing, China
| | - De-Jiang Tan
- National Institutes for Food and Drug Control, Beijing, China
| | - Hua Gao
- National Institutes for Food and Drug Control, Beijing, China
| | - Can Wang
- Shanghai Institute for Food and Drug Control, Shanghai, China
| | - Gang Chen
- Shanghai Institute for Food and Drug Control, Shanghai, China
| | | | - Bo Chen
- KeyMed Biosciences Inc., Chengdu, China
| | - Jun-Zhi Wang
- National Institutes for Food and Drug Control, Beijing, China.
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3
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Cirefice G, Schütte K, Spreitzer I, Charton E, Shaid S, Viviani L, Rubbrecht M, Manou I. The future of pyrogenicity testing: Phasing out the rabbit pyrogen test. A meeting report. Biologicals 2023; 84:101702. [PMID: 37643507 DOI: 10.1016/j.biologicals.2023.101702] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 08/01/2023] [Accepted: 08/22/2023] [Indexed: 08/31/2023] Open
Abstract
The rabbit pyrogen test (RPT) was the benchmark for pyrogenicity testing, but scientific advancements have provided innovative and humane methods, such as the in vitro monocyte-activation test (MAT). However, transitioning from the RPT to the MAT has been challenging. The European Directorate for the Quality of Medicines & HealthCare, the Council of Europe, and the European Partnership for Alternative Approaches to Animal Testing jointly hosted an international conference entitled "The future of pyrogenicity testing: phasing out the rabbit pyrogen test". The conference aimed to show how the European Pharmacopoeia intends to remove the RPT from its texts by 2026, facilitate the use of MAT, and identify gaps in the suppression of RPT. The events contributed to a better understanding of the barriers to RPT replacement and acceptance of in vitro alternatives. Participants comprised stakeholders from Asia, Europe, and North America, including vaccine developers, contract laboratories, and regulators. Participants shared their replacement strategies and experiences with MAT implementation. They emphasised the need for continued cooperation between stakeholders and stressed the importance of international harmonisation of regulatory requirements to help accelerate MAT acceptance outside Europe. Despite the challenges, the willingness to eliminate the unnecessary use of RPT was common across all participants.
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Affiliation(s)
- Gwenaël Cirefice
- European Directorate for the Quality of Medicines & HealthCare (EDQM), Council of Europe, Strasbourg, France
| | | | | | - Emmanuelle Charton
- European Directorate for the Quality of Medicines & HealthCare (EDQM), Council of Europe, Strasbourg, France
| | | | | | | | - Irene Manou
- European Partnership for Alternative Approaches to Animal Testing (EPAA), Brussels, Belgium.
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4
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Kim JH, Jung K, Kim J, Lee J, Kim H, Song H, Han K, Park S, Ahn C, Kim CW. Development of a rabbit monocyte activation test as an alternative to the rabbit pyrogen test and its application in the analysis of plasma-derived products. Biologicals 2021; 71:20-30. [PMID: 33994086 DOI: 10.1016/j.biologicals.2021.04.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 04/11/2021] [Accepted: 04/14/2021] [Indexed: 10/21/2022] Open
Abstract
The rabbit pyrogen test (RPT) is a safety test conducted as a part of mandatory requirements of regulatory agencies. RPT is currently performed for routine quality control (QC) by manufacturers and for national lot release of biological products, such as plasma-derived products. However, RPT involves the use of many rabbits, counter to the international efforts to minimize the use of animals in research. Furthermore, pyrogen amount cannot be discerned from the test results and the results may be considerably affected by various factors. Therefore, a need exists for substituting RPT with in vitro assays. As a viable alternative to RPT, we here established a rabbit monocyte activation test (RMAT) based on the human MAT in the European Pharmacopoeia. RMAT uses rabbit peripheral blood mononuclear cells as the source of monocytes instead of live animals. The test detected endotoxin, lipoteichoic acid, peptidoglycan, and zymosan with high sensitivity, showing high correlation with the in vivo RPT results. The results of RMAT and RPT testing of non-pyrogenic plasma-derived products were also consistent. Furthermore, RMAT showed satisfactory recovery rates in an interference test with product samples and spiked-in pyrogens. We conclude that RMAT could replace the existing RPT for routine QC.
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Affiliation(s)
- Ji-Hye Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, 1, 5-ka, Anam-dong, Sungbuk-ku, Seoul, 02841, Republic of Korea; National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Chuncheongbuk-do, 28159, Republic of Korea.
| | - Kikyung Jung
- National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Chuncheongbuk-do, 28159, Republic of Korea.
| | - Jaeok Kim
- National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Chuncheongbuk-do, 28159, Republic of Korea.
| | - Jiyoung Lee
- National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Chuncheongbuk-do, 28159, Republic of Korea.
| | - HyunJeong Kim
- National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Chuncheongbuk-do, 28159, Republic of Korea.
| | - Hojin Song
- National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Chuncheongbuk-do, 28159, Republic of Korea.
| | - Kiwon Han
- National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Chuncheongbuk-do, 28159, Republic of Korea.
| | - Sangmi Park
- National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Chuncheongbuk-do, 28159, Republic of Korea; Department of Manufacturing Pharmacy, Chungbuk National University College of Pharmacy, 194-21, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do, 28160, Republic of Korea.
| | - Chiyoung Ahn
- National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Cheongju, Chuncheongbuk-do, 28159, Republic of Korea.
| | - Chan-Wha Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, 1, 5-ka, Anam-dong, Sungbuk-ku, Seoul, 02841, Republic of Korea.
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5
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Zheng L, Wang M, Shen X, Wang C, Wan L, Tang L, Chen G, Chen G. Applicability of Monocyte Activation Test for Pyrogen Detection in Succinylated Gelatin Injection. CURR PHARM ANAL 2021. [DOI: 10.2174/1573412916666191230125803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background::
Pyrogens are fever-inducing substances and pyrogen detection is mandatory in
parenteral pharmaceuticals. Succinylated Gelatin Injection (SGI) is a biopharmaceutical product, containing
multi-component, and it is administered parenterally.
Objective:
The study aimed to assess pyrogen in SGI and to evaluate the feasibility of the Monocyte
Activation Test (MAT) for pyrogen detection in a multi-component pharmaceutical product.
Method:
In the present study, the Bacterial Endotoxin Test (BET) and the Monocyte Activation Test
(MAT) were employed to assess pyrogen in SGI. The MAT method was developed on the basis of the
HL-60/IL-6 assay. HL-60 cells were incubated with lipopolysaccharide (LPS) standards and sample
solutions. The endotoxin produced by the incubation, interleukin-6 (IL-6), was measured by ELISA.
The MAT method was validated and main parameters were investigated. Finally, the pyrogenicity of
SGIs from two different enterprises was determined by the developed MAT method.
Results:
The BET failed in the test for interfering factors and the MAT was proved suitable for the pyrogen
detection of SGI. All the products examined showed negative results in the pyrogen detection
test.
Conclusion:
The MAT method is feasible in pyrogen detection of SGI. It can be applied in pyrogen
detection for quality and safety control of multi-component biological products.
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Affiliation(s)
- Luxia Zheng
- Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, 285 Gebaini Road, Shanghai 200040,China
| | - Mingren Wang
- Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, 285 Gebaini Road, Shanghai 200040,China
| | - Xiong Shen
- Department of Pharmacy, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai 200032,China
| | - Can Wang
- Shanghai Institute for Food and Drug Control, 1500 Zhangheng Road, Shanghai 201203,China
| | - Liqing Wan
- Shanghai Institute for Food and Drug Control, 1500 Zhangheng Road, Shanghai 201203,China
| | - Liming Tang
- Shanghai Institute for Food and Drug Control, 1500 Zhangheng Road, Shanghai 201203,China
| | - Guiliang Chen
- Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, 285 Gebaini Road, Shanghai 200040,China
| | - Gang Chen
- Shanghai Institute for Food and Drug Control, 1500 Zhangheng Road, Shanghai 201203,China
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6
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Szentirmai É, Massie AR, Kapás L. Lipoteichoic acid, a cell wall component of Gram-positive bacteria, induces sleep and fever and suppresses feeding. Brain Behav Immun 2021; 92:184-192. [PMID: 33307170 PMCID: PMC7897295 DOI: 10.1016/j.bbi.2020.12.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 11/30/2020] [Accepted: 12/06/2020] [Indexed: 11/19/2022] Open
Abstract
Fragments of the bacterial cell wall are bioactive microbial molecules that have profound effects on the function of the brain. Some of the cell wall constituents are common to both Gram-positive and Gram-negative bacteria, e.g., peptidoglycans, while other cell wall components are specific to either Gram-positive or Gram-negative microbes. Lipopolysaccharide (LPS), also called endotoxin, is found exclusively in Gram-negative bacteria, while lipoteichoic acid (LTA) is specific to Gram-positive bacteria. The effects of peptidoglycans, their fragments, and LPS are well characterized, they induce sleep, fever and anorexia. In the present study, we investigated the sleep, body temperature and food intake modulating effects of LTA. We found that intraperitoneal injection of 100 and 250 μg LTA from B. subtilis and S. aureus increases non-rapid-eye movement sleep (NREMS) in mice. The effects were dose-dependent, and the changes were accompanied by decreased motor activity and feeding as well as febrile responses. Intraperitoneal injection of 10 μg LTA induced monophasic increases in body temperature, while 100 and 250 μg LTA from B. subtilis induced initial hypothermia followed by fever. Treatment with 250 μg LTA from S. aureus elicited monophasic hypothermia. Administration of 300 μg/kg LTA from S. aureus directly into the portal vein elicited similar sleep responses in rats but did not affect body temperature. The sleep-modulating effects of LTA were similar to that of LPS in mice, although LTA appears to be less potent. These findings suggest that the role of LTA in signaling by Gram-positive bacteria in the host body is analogous to the role of LPS/endotoxin in signaling by Gram-negative microbes. LTA may play a role in the development of sickness response in clinically manifest Gram-positive bacterial infections and may contribute to sleep signaling by the commensal intestinal microbiota.
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Affiliation(s)
- Éva Szentirmai
- Elson S. Floyd College of Medicine, Department of Biomedical Sciences, Washington State University, Spokane, WA, United States; Sleep and Performance Research Center, Washington State University, Spokane, WA, United States.
| | - Ashley R Massie
- Elson S. Floyd College of Medicine, Department of Biomedical Sciences, Washington State University, Spokane, WA, United States
| | - Levente Kapás
- Elson S. Floyd College of Medicine, Department of Biomedical Sciences, Washington State University, Spokane, WA, United States; Sleep and Performance Research Center, Washington State University, Spokane, WA, United States
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7
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Schneier M, Razdan S, Miller AM, Briceno ME, Barua S. Current technologies to endotoxin detection and removal for biopharmaceutical purification. Biotechnol Bioeng 2020; 117:2588-2609. [PMID: 32333387 DOI: 10.1002/bit.27362] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 04/20/2020] [Accepted: 04/22/2020] [Indexed: 12/21/2022]
Abstract
Endotoxins are the major contributors to the pyrogenic response caused by contaminated pharmaceutical products, formulation ingredients, and medical devices. Recombinant biopharmaceutical products are manufactured using living organisms, including Gram-negative bacteria. Upon the death of a Gram-negative bacterium, endotoxins (also known as lipopolysaccharides) in the outer cell membrane are released into the lysate where they can interact with and form bonds with biomolecules, including target therapeutic compounds. Endotoxin contamination of biologic products may also occur through water, raw materials such as excipients, media, additives, sera, equipment, containers closure systems, and expression systems used in manufacturing. The manufacturing process is, therefore, in critical need of methods to reduce and remove endotoxins by monitoring raw materials and in-process intermediates at critical steps, in addition to final drug product release testing. This review paper highlights a discussion on three major topics about endotoxin detection techniques, upstream processes for the production of therapeutic molecules, and downstream processes to eliminate endotoxins during product purification. Finally, we have evaluated the effectiveness of endotoxin removal processes from a perspective of high purity and low cost.
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Affiliation(s)
- Mason Schneier
- Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri
| | - Sidharth Razdan
- Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri
| | - Allison M Miller
- Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri
| | - Maria E Briceno
- Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri
| | - Sutapa Barua
- Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri
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8
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Studholme L, Sutherland J, Desai T, Hockley J, Care R, Nordgren IK, Vipond C. Evaluation of the monocyte activation test for the safety testing of meningococcal B vaccine Bexsero: A collaborative study. Vaccine 2018; 37:3761-3769. [PMID: 31202504 DOI: 10.1016/j.vaccine.2018.05.073] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 04/12/2018] [Accepted: 05/17/2018] [Indexed: 01/04/2023]
Abstract
The aim of this collaborative study was to evaluate the robustness of the monocyte activation test (MAT) for quantifying the pyrogenic content in the outer membrane vesicle (OMV)-containing vaccine Bexsero: the first meningococcal B vaccine to be licenced. We analysed datasets from 9 laboratories covering 15 test systems for 3 batches of Bexsero with higher, equivalent and lower activity relative to a reference lot in the MAT. Activity was measured in terms of relative pyrogen units (RPU) based on European Pharmacopoeia (Ph. Eur.) MAT Chapter 2.6.30 Method C: Reference Lot Comparison Test. We report that all 15 test systems were consistent in that they showed sample A to be the most active in the MAT; that 13 of 15 test systems had an accuracy of more than 80% and an overall geometric mean RPU of 1.03 with lower and upper 95% confidence limits of 0.97 and 1.09 respectively for a sample with an expected value of 1.00 RPU. We also report larger variability in the results for test systems involving cells from individual blood donations for sample A suggesting that there could be donor to donor differences in sensitivity to the vaccine constituents responsible for the higher activity of this batch. Overall, the consistency and accuracy of the MAT was remarkable given the range of test systems used by participants, all of which are permitted by the Ph. Eur. General MAT Chapter. This is important given the limitations of the rabbit pyrogen test for the control of pyrogenicity in general and particularly with products with intrinsic pyrogenicity such as Bexsero.
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Affiliation(s)
- Lucy Studholme
- Medicines and Healthcare Regulatory Agency - National Institute for Biological Standards and Control, South Mimms, Potters Bar, Herts EN6 3QG, UK
| | - Janet Sutherland
- Medicines and Healthcare Regulatory Agency - National Institute for Biological Standards and Control, South Mimms, Potters Bar, Herts EN6 3QG, UK
| | - Trusha Desai
- Medicines and Healthcare Regulatory Agency - National Institute for Biological Standards and Control, South Mimms, Potters Bar, Herts EN6 3QG, UK
| | - Jason Hockley
- Medicines and Healthcare Regulatory Agency - National Institute for Biological Standards and Control, South Mimms, Potters Bar, Herts EN6 3QG, UK
| | - Rory Care
- Medicines and Healthcare Regulatory Agency - National Institute for Biological Standards and Control, South Mimms, Potters Bar, Herts EN6 3QG, UK
| | - Ida Karin Nordgren
- Medicines and Healthcare Regulatory Agency - National Institute for Biological Standards and Control, South Mimms, Potters Bar, Herts EN6 3QG, UK.
| | - Caroline Vipond
- Medicines and Healthcare Regulatory Agency - National Institute for Biological Standards and Control, South Mimms, Potters Bar, Herts EN6 3QG, UK
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- Medicines and Healthcare Regulatory Agency - National Institute for Biological Standards and Control, South Mimms, Potters Bar, Herts EN6 3QG, UK
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9
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Silva VF, da Silva Guedes Junior D, da Silveira IA, Almeida AS, de Paiva Conte F, Delgado IF, Silva CC, Presgrave OAF, de Mattos KA. A Comparison of Pyrogen Detection Tests in the Quality Control of Meningococcal Conjugate Vaccines: The Applicability of the Monocyte Activation Test. Altern Lab Anim 2018; 46:255-272. [DOI: 10.1177/026119291804600506] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The meningococcal C conjugate vaccine (MenCC) is an interesting model with which to test the efficacy of the Monocyte Activation Test (MAT) as an alternative method of pyrogen testing in the quality control of vaccines. The MenCC that has been produced by Bio-Manguinhos in Brazil is in the final development stage, and, as recommended in the guidelines for MenCC production, its pyrogen content must be determined by using the Limulus Amoebocyte Lysate (LAL) assay and the Rabbit Pyrogen Test (RPT). This represents an ideal opportunity to compare LAL and RPT data with data obtained by using a MAT system with cryopreserved whole blood and IL-6/IL-1β as marker readouts. In order to assess the compatibility of the MAT with MenCC, endotoxin and non-endotoxin pyrogen content was quantified by using MenCC samples spiked with lipopolysaccharide (LPS), lipoteichoic acid or zymosan standards. The presence of the aluminium-based adjuvant interfered with the MAT, increasing the readout of IL-1β in LPS-spiked MenCC batches. This infringed the product-specific validation criteria of the test, and led to IL-6 being chosen as the more suitable marker readout. No pyrogenic contaminants were identified in the MenCC batches tested, demonstrating consistency among the different systems (MAT, RPT and the LAL assay). In conclusion, the introduction of the MAT during MenCC development could contribute to the elimination of animal tests post-licensing, ensuring human protection based on an effective non-animal based method of quality control.
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Affiliation(s)
- Vitor Fernandes Silva
- Departamento de Controle de Qualidade, Instituto de Tecnologia em Imunobiológicos (Bio-Manguinhos), Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Daniel da Silva Guedes Junior
- Departamento de Controle de Qualidade, Instituto de Tecnologia em Imunobiológicos (Bio-Manguinhos), Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Ivna Alana da Silveira
- Laboratório de Tecnologia Bacteriana, Instituto de Tecnologia em Imunobiológicos (Bio-Manguinhos), Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Alessandra Santos Almeida
- Departamento de Controle de Qualidade, Instituto de Tecnologia em Imunobiológicos (Bio-Manguinhos), Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Fernando de Paiva Conte
- Laboratório de Tecnologia de Anticorpos Monoclonais, Instituto de Tecnologia em Imunobiológicos (Bio-Manguinhos), Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Isabella Fernandes Delgado
- Departamento de Farmacologia e Toxicologia, Instituto Nacional de Controle da Qualidade em Saúde, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Cristiane Caldeira Silva
- Departamento de Farmacologia e Toxicologia, Instituto Nacional de Controle da Qualidade em Saúde, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Octavio Augusto França Presgrave
- Departamento de Farmacologia e Toxicologia, Instituto Nacional de Controle da Qualidade em Saúde, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Katherine Antunes de Mattos
- Departamento de Controle de Qualidade, Instituto de Tecnologia em Imunobiológicos (Bio-Manguinhos), Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
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10
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Li K, Xu H, Jiang W, Li J, Liu W, Wang T, Fang M. Development and characterization of stable reporter cells for fast and sensitive detection of pyrogen. Anal Biochem 2018; 557:69-76. [PMID: 30030993 DOI: 10.1016/j.ab.2018.07.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 06/18/2018] [Accepted: 07/17/2018] [Indexed: 12/20/2022]
Abstract
Pyrogens are a class of heterogeneous compounds that cause fever and induce inflammatory responses in the host. Lipopolysaccharides (LPS, also known as endotoxin) is the major pyrogen in the category of drug quality control. Accurate and fast quantification of pyrogens is crucial for drug safety. In the present study, we aimed to develop a sensitive and reliable method for rapid detection of pyrogens using luciferase reporter assay. Stable human A549 luciferase reporter cells were constructed under the control of a NF-κB-responsive element or IFN-β promoter. Our results showed that several monoclonal stable cell clones responded to 0.1 EU/ml endotoxin, which was less than human fever threshold at 0.3 EU/ml of endotoxin. Further, compared with original A549 cells, TLR4 expression on the reporter cells were significantly increased after low amount LPS stimulation. In addition, reporter cells also responded to zymosan stimulation. Therefore, these results indicated that the stable luciferase reporter cells respond to endotoxin and non-endotoxin pyrogens and have the potential to further develop into a sensitive and fast pyrogen evaluation method.
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Affiliation(s)
- Kaili Li
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, NO.1 Beichen West Road, Chaoyang District, Beijing, 100101, China; Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, China
| | - Henan Xu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, NO.1 Beichen West Road, Chaoyang District, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100101, China
| | - Wei Jiang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, NO.1 Beichen West Road, Chaoyang District, Beijing, 100101, China
| | - Jing Li
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, NO.1 Beichen West Road, Chaoyang District, Beijing, 100101, China
| | - Wenjun Liu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, NO.1 Beichen West Road, Chaoyang District, Beijing, 100101, China
| | - Tao Wang
- Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai, 200031, China.
| | - Min Fang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, NO.1 Beichen West Road, Chaoyang District, Beijing, 100101, China; International College, University of Chinese Academy of Sciences, Beijing, 100101, China.
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11
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de Mattos KA, Navega ECA, Silva VF, Almeida AS, da Silva CC, Presgrave OAF, Junior DDSG, Delgado IF. Applicability of the Monocyte Activation Test (MAT) in the quality control of the 17DD yellow fever vaccine. Altern Lab Anim 2018; 46:23-37. [PMID: 29553795 DOI: 10.1177/026119291804600107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The need for alternatives to animal use in pyrogen testing has been driven by the Three Rs concept. This has resulted in the inclusion of the monocyte activation test (MAT) in the European Pharmacopoeia, 2010. However, some technical and regulatory obstacles must be overcome to ensure the effective implementation of the MAT by the industry, especially for the testing of biological products. The yellow fever (YF) vaccine (17DD-YFV) was chosen for evaluation in this study, in view of: a) the 2016-2018 outbreak of YF in Brazil; b) the increase in demand for 17DD-YFV doses; c) the complex production process with live attenuated virus; d) the presence of possible test interference factors, such as residual process components (e.g. ovalbumin); and e) the need for the investigation of other pyrogens that are not detectable by the methods prescribed in the YF vaccine monograph. The product-specific testing was carried out by using cryopreserved and fresh whole blood, and IL-6 and IL-1β levels were used as the marker readouts. After assessing the applicability of the MAT on a 1:10 dilution of 17DD-YFV, endotoxin and non-endotoxin pyrogens were quantified in spiked batches, by using the lipopolysaccharide and lipoteichoic acid standards, respectively. The quantitative analysis demonstrated the correlation between the MAT and the Limulus amoebocyte lysate (LAL) assays, with respect to the limits of endotoxin recovery in spiked batches and the detection of no pyrogenic contamination in commercial batches of 17DD-YFV. The data demonstrated the applicability of the MAT for 17DD-YFV pyrogen testing, and as an alternative method that can contribute to biological quality control studies.
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Affiliation(s)
- Katherine Antunes de Mattos
- Departamento de Controle de Qualidade, Instituto de Tecnologia em Imunobiológicos (Bio-Manguinhos), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Elaine Cristina Azevedo Navega
- Departamento de Controle de Qualidade, Instituto de Tecnologia em Imunobiológicos (Bio-Manguinhos), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Vitor Fernandes Silva
- Departamento de Controle de Qualidade, Instituto de Tecnologia em Imunobiológicos (Bio-Manguinhos), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Alessandra Santos Almeida
- Departamento de Controle de Qualidade, Instituto de Tecnologia em Imunobiológicos (Bio-Manguinhos), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Cristiane Caldeira da Silva
- Departamento de Farmacologia e Toxicologia, Instituto Nacional de Controle da Qualidade em Saúde, Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Octavio Augusto França Presgrave
- Departamento de Farmacologia e Toxicologia, Instituto Nacional de Controle da Qualidade em Saúde, Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Daniel da Silva Guedes Junior
- Departamento de Controle de Qualidade, Instituto de Tecnologia em Imunobiológicos (Bio-Manguinhos), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Isabella Fernandes Delgado
- Departamento de Farmacologia e Toxicologia, Instituto Nacional de Controle da Qualidade em Saúde, Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
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12
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O'Brien M, Moehring D, Muñoz-Planillo R, Núñez G, Callaway J, Ting J, Scurria M, Ugo T, Bernad L, Cali J, Lazar D. A bioluminescent caspase-1 activity assay rapidly monitors inflammasome activation in cells. J Immunol Methods 2017; 447:1-13. [PMID: 28268194 DOI: 10.1016/j.jim.2017.03.004] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 02/13/2017] [Accepted: 03/03/2017] [Indexed: 01/01/2023]
Abstract
Inflammasomes are protein complexes induced by diverse inflammatory stimuli that activate caspase-1, resulting in the processing and release of cytokines, IL-1β and IL-18, and pyroptosis, an immunogenic form of cell death. To provide a homogeneous method for detecting caspase-1 activity, we developed a bioluminescent, plate-based assay that combines a substrate, Z-WEHD-aminoluciferin, with a thermostable luciferase in an optimized lytic reagent added directly to cultured cells. Assay specificity for caspase-1 is conferred by inclusion of a proteasome inhibitor in the lytic reagent and by use of a caspase-1 inhibitor to confirm activity. This approach enables a specific and rapid determination of caspase-1 activation. Caspase-1 activity is stable in the reagent thereby providing assay convenience and flexibility. Using this assay system, caspase-1 activation has been determined in THP-1 cells following treatment with α-hemolysin, LPS, nigericin, gramicidin, MSU, R848, Pam3CSK4, and flagellin. Caspase-1 activation has also been demonstrated in treated J774A.1 mouse macrophages, bone marrow-derived macrophages (BMDMs) from mice, as well as in human primary monocytes. Caspase-1 activity was not detected in treated BMDMs derived from Casp1-/- mice, further confirming the specificity of the assay. Caspase-1 activity can be measured directly in cultured cells using the lytic reagent, or caspase-1 activity released into medium can be monitored by assay of transferred supernatant. The caspase-1 assay can be multiplexed with other assays to monitor additional parameters from the same cells, such as IL-1β release or cell death. The caspase-1 assay in combination with a sensitive real-time monitor of cell death allows one to accurately establish pyroptosis. This assay system provides a rapid, convenient, and flexible method to specifically and quantitatively monitor caspase-1 activation in cells in a plate-based format. This will allow a more efficient and effective assessment of inflammasome activation as well as enable high-throughput screening for inflammasome modulators.
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Affiliation(s)
- Martha O'Brien
- Promega Corporation, 2800 Woods Hollow Rd, Madison, WI 53711, USA.
| | | | - Raúl Muñoz-Planillo
- Dept. of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Gabriel Núñez
- Dept. of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Justin Callaway
- Dept. of Microbiology and Immunology, School of Medicine, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Jenny Ting
- Dept. of Microbiology and Immunology, School of Medicine, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Mike Scurria
- Promega Biosciences LLC, 277 Granada Dr, San Luis Obispo, CA 93401, USA
| | - Tim Ugo
- Promega Biosciences LLC, 277 Granada Dr, San Luis Obispo, CA 93401, USA
| | - Laurent Bernad
- Promega Biosciences LLC, 277 Granada Dr, San Luis Obispo, CA 93401, USA
| | - James Cali
- Promega Corporation, 2800 Woods Hollow Rd, Madison, WI 53711, USA
| | - Dan Lazar
- Promega Corporation, 2800 Woods Hollow Rd, Madison, WI 53711, USA
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