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Xiao-Ping C, Hao Z, Ru-Li F, Jin-Xing L, Yu-Jun D, Ze-Yin L. Recombinant mannan-binding lectin magnetic beads increase pathogen detection in immunocompromised patients. Appl Microbiol Biotechnol 2024; 108:193. [PMID: 38308716 PMCID: PMC10838228 DOI: 10.1007/s00253-024-13019-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 01/02/2024] [Accepted: 01/18/2024] [Indexed: 02/05/2024]
Abstract
The microbiological diagnosis of infection for hematological malignancy patients receiving chemotherapy or allogeneic hematopoietic stem cell transplantation (allo-HSCT) patients relies primarily on standard microbial culture, especially blood culture, which has many shortcomings, such as having low positive rates, being time-consuming and having a limited pathogenic spectrum. In this prospective observational self-controlled test accuracy study, blood, cerebrospinal fluid (CSF), and bronchoalveolar lavage fluid (BALF) samples were collected from chemotherapy or allo-HSCT patients with clinical symptoms of infections who were hospitalized at Peking University First Hospital. Possible pathogens were detected by the method based on recombinant mannan-binding lectin (MBL) magnetic bead enrichment (M1 method) and simultaneously by a standard method. The analytical sensitivity of M1 method was close to that of standard culture method. Besides, the turn-around time of M1-method was significantly shorter than that of standard culture method. Moreover, the M1 method also added diagnostic value through the detection of some clinically relevant microbes missed by the standard method. M1 method could significantly increase the detection efficiency of pathogens (including bacteria and fungi) in immunocompromised patients. KEY POINTS: • The detection results of M1-method had a high coincidence rate with that of standard method • M1 method detected many pathogens which had not been found by standard clinic method.
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Affiliation(s)
- Chen Xiao-Ping
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Zheng Hao
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Feng Ru-Li
- Clinical Laboratory of Peking University First Hospital, XiShiKu Street 8, XiCheng District, Beijing, 86-10-83572211, China
| | - Lu Jin-Xing
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Dong Yu-Jun
- Department of Hematology, Peking University First Hospital, XiShiKu Street 8, XiCheng District, Beijing, 86-10-83572211, China.
| | - Liang Ze-Yin
- Department of Hematology, Peking University First Hospital, XiShiKu Street 8, XiCheng District, Beijing, 86-10-83572211, China.
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Ortega MM, da Silva LT, Candido ÉD, Zheng Y, Tiyo BT, Ferreira AEF, Corrêa-Silva S, Scagion GP, Leal FB, Chalup VN, Valério CA, Schmitz GJH, Ceneviva C, Corá AP, de Almeida A, Durigon EL, Oliveira DBL, Palmeira P, da Silva Duarte AJ, Carneiro-Sampaio M, Oshiro TM. Salivary, serological, and cellular immune response to the CoronaVac vaccine in health care workers with or without previous COVID-19. Sci Rep 2022; 12:10125. [PMID: 35710573 PMCID: PMC9202665 DOI: 10.1038/s41598-022-14283-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 06/03/2022] [Indexed: 12/28/2022] Open
Abstract
We investigated the anti-SARS-CoV-2 post-vaccine response through serum and salivary antibodies, serum antibody neutralizing activity and cellular immune response in samples from health care workers who were immunized with two doses of an inactivated virus-based vaccine (CoronaVac) who had or did not have COVID-19 previously. IgA and IgG antibodies directed at the spike protein were analysed in samples of saliva and/or serum by ELISA and/or chemiluminescence assays; the neutralizing activity of serum antibodies against reference strain B, Gamma and Delta SARS-CoV-2 variants were evaluated using a virus neutralization test and SARS-CoV-2 reactive interferon-gamma T-cell were analysed by flow cytometry. CoronaVac was able to induce serum and salivary IgG anti-spike antibodies and IFN-γ producing T cells in most individuals who had recovered from COVID-19 and/or were vaccinated. Virus neutralizing activity was observed against the ancestral strain, with a reduced response against the variants. Vaccinated individuals who had previous COVID-19 presented higher responses than vaccinated individuals for all variables analysed. Our study provides evidence that the CoronaVac vaccine was able to induce the production of specific serum and saliva antibodies, serum virus neutralizing activity and cellular immune response, which were increased in previously COVID-19-infected individuals compared to uninfected individuals.
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Affiliation(s)
- Marina Mazzilli Ortega
- Laboratorio de Investigacao Medica em Dermatologia e Imunodeficiencias (LIM 56), Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, Av. Dr. Eneas Carvalho de Aguiar, 470, Predio 2, 3º andar, Cerqueira Cesar, São Paulo, SP, CEP: 05403-000, Brazil
| | - Laís Teodoro da Silva
- Laboratorio de Investigacao Medica em Dermatologia e Imunodeficiencias (LIM 56), Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, Av. Dr. Eneas Carvalho de Aguiar, 470, Predio 2, 3º andar, Cerqueira Cesar, São Paulo, SP, CEP: 05403-000, Brazil.
| | - Érika Donizetti Candido
- Laboratorio de Virologia Clinica e Molecular do Instituto de Ciencias Biomedicas da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Yingying Zheng
- Departamento de Pediatria, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, SP, Brazil
| | - Bruna Tiaki Tiyo
- Laboratorio de Investigacao Medica em Dermatologia e Imunodeficiencias (LIM 56), Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, Av. Dr. Eneas Carvalho de Aguiar, 470, Predio 2, 3º andar, Cerqueira Cesar, São Paulo, SP, CEP: 05403-000, Brazil
| | - Arthur Eduardo Fernandes Ferreira
- Laboratorio de Pediatria Clinica (LIM 36), Departamento de Pediatria, Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, São Paulo, SP, Brazil
| | - Simone Corrêa-Silva
- Departamento de Pediatria, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, SP, Brazil
| | - Guilherme Pereira Scagion
- Laboratorio de Virologia Clinica e Molecular do Instituto de Ciencias Biomedicas da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Fabyano Bruno Leal
- Laboratorio de Virologia Clinica e Molecular do Instituto de Ciencias Biomedicas da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Vanessa Nascimento Chalup
- Laboratorio de Virologia Clinica e Molecular do Instituto de Ciencias Biomedicas da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Camila Araújo Valério
- Laboratorio de Virologia Clinica e Molecular do Instituto de Ciencias Biomedicas da Universidade de São Paulo, São Paulo, SP, Brazil
| | - Gabriela Justamante Händel Schmitz
- Laboratorio de Investigacao Medica em Dermatologia e Imunodeficiencias (LIM 56), Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, Av. Dr. Eneas Carvalho de Aguiar, 470, Predio 2, 3º andar, Cerqueira Cesar, São Paulo, SP, CEP: 05403-000, Brazil
| | - Carina Ceneviva
- Divisao de Laboratorio Central, Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, São Paulo, SP, Brazil
| | - Aline Pivetta Corá
- Divisao de Laboratorio Central, Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, São Paulo, SP, Brazil
| | - Alexandre de Almeida
- Laboratorio de Investigacao Medica em Dermatologia e Imunodeficiencias (LIM 56), Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, Av. Dr. Eneas Carvalho de Aguiar, 470, Predio 2, 3º andar, Cerqueira Cesar, São Paulo, SP, CEP: 05403-000, Brazil
| | - Edison Luiz Durigon
- Laboratorio de Virologia Clinica e Molecular do Instituto de Ciencias Biomedicas da Universidade de São Paulo, São Paulo, SP, Brazil
- Plataforma Científica Paster-USP, Universidade de Sao Paulo, São Paulo, SP, Brazil
| | - Danielle Bruna Leal Oliveira
- Laboratorio de Virologia Clinica e Molecular do Instituto de Ciencias Biomedicas da Universidade de São Paulo, São Paulo, SP, Brazil
- Hospital Israelita Albert Einstein, São Paulo, SP, Brazil
| | - Patricia Palmeira
- Laboratorio de Pediatria Clinica (LIM 36), Departamento de Pediatria, Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, São Paulo, SP, Brazil
| | - Alberto José da Silva Duarte
- Laboratorio de Investigacao Medica em Dermatologia e Imunodeficiencias (LIM 56), Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, Av. Dr. Eneas Carvalho de Aguiar, 470, Predio 2, 3º andar, Cerqueira Cesar, São Paulo, SP, CEP: 05403-000, Brazil
- Divisao de Laboratorio Central, Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, São Paulo, SP, Brazil
| | - Magda Carneiro-Sampaio
- Departamento de Pediatria, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, SP, Brazil
| | - Telma Miyuki Oshiro
- Laboratorio de Investigacao Medica em Dermatologia e Imunodeficiencias (LIM 56), Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, Av. Dr. Eneas Carvalho de Aguiar, 470, Predio 2, 3º andar, Cerqueira Cesar, São Paulo, SP, CEP: 05403-000, Brazil.
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