Evaluation of the transcriptional immune biomarkers in peripheral blood from Warao indigenous associate with the infection by Mycobacterium tuberculosis
Abstract INTRODUCTION: Biomarkers are critical tools for finding new approaches for controlling the spread of tuberculosis (TB), including for predicting the development of TB therapeutics, vaccines, and diagnostic tools. METHODS: Expression of immune biomarkers was analyzed in peripheral blood...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Medicina Tropical (SBMT)
2019-05-01
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| Series: | Revista da Sociedade Brasileira de Medicina Tropical |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822019000100319&lng=en&tlng=en |
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| author | Zaida Araujo Andrea Palacios Leonor Enciso-Moreno Juan Ernesto Lopez-Ramos Albina Wide Jacobus Henri de Waard Bruno Rivas-Santiago Carmen Judith Serrano Yadira Bastian-Hernandez Julio Enrique Castañeda-Delgado Jose Antonio Enciso-Moreno |
| author_facet | Zaida Araujo Andrea Palacios Leonor Enciso-Moreno Juan Ernesto Lopez-Ramos Albina Wide Jacobus Henri de Waard Bruno Rivas-Santiago Carmen Judith Serrano Yadira Bastian-Hernandez Julio Enrique Castañeda-Delgado Jose Antonio Enciso-Moreno |
| author_sort | Zaida Araujo |
| collection | DOAJ |
| description | Abstract INTRODUCTION: Biomarkers are critical tools for finding new approaches for controlling the spread of tuberculosis (TB), including for predicting the development of TB therapeutics, vaccines, and diagnostic tools. METHODS: Expression of immune biomarkers was analyzed in peripheral blood cells stimulated and non-stimulated with M. tuberculosis antigens ESAT-6, CFP10 and TB7.7. in Warao indigenous individuals. These biomarkers may be able to differentiate TB states, such as active tuberculosis (ATB) cases and latent tuberculosis infection (LTBI) from non-infected controls (NIC). A real-time reverse transcription polymerase chain reaction (RT-qPCR) assay was performed on 100 blood samples under non-stimulation or direct ex vivo conditions (NS=50) and stimulation conditions (S=50). RESULTS: The findings are shown as the median and interquartile range (IQR) of relative gene expression levels of IFN-γ, CD14, MMP9, CCR5, CCL11, CXCL9/MIG, and uPAR/PLAUR immune biomarkers. MMP9 levels were significantly higher in the LTBI-NS and LTBI-S groups compared with the NIC-NS and NIC-S groups. However, CCR5 levels were significantly lower in the LTBI-S group compared with both NIC-NS and NIC-S groups. CCL11 levels were significantly lower in the LTBI-S group compared with the NIC-NS group. CONCLUSIONS: Preliminary findings showed that MMP9 immune biomarkers separated LTBI indigenous individuals from NIC indigenous individuals, while CCR5, CCL11, CD14, and IFN-γ did not differentiate TB states from NIC. MMP9 may be useful as a potential biomarker for LTBI and new infected case detection among Warao indigenous individuals at high risk of developing the disease. It may also be used to halt the epidemic, which will require further validation in larger studies. |
| first_indexed | 2024-12-12T19:14:29Z |
| format | Article |
| id | doaj.art-77151b9e672d4ef3a6fb8ff5524c6c1a |
| institution | Directory Open Access Journal |
| issn | 1678-9849 |
| language | English |
| last_indexed | 2024-12-12T19:14:29Z |
| publishDate | 2019-05-01 |
| publisher | Sociedade Brasileira de Medicina Tropical (SBMT) |
| record_format | Article |
| series | Revista da Sociedade Brasileira de Medicina Tropical |
| spelling | doaj.art-77151b9e672d4ef3a6fb8ff5524c6c1a2022-12-22T00:14:46ZengSociedade Brasileira de Medicina Tropical (SBMT)Revista da Sociedade Brasileira de Medicina Tropical1678-98492019-05-0152010.1590/0037-8682-0516-2018S0037-86822019000100319Evaluation of the transcriptional immune biomarkers in peripheral blood from Warao indigenous associate with the infection by Mycobacterium tuberculosisZaida AraujoAndrea PalaciosLeonor Enciso-MorenoJuan Ernesto Lopez-RamosAlbina WideJacobus Henri de WaardBruno Rivas-SantiagoCarmen Judith SerranoYadira Bastian-HernandezJulio Enrique Castañeda-DelgadoJose Antonio Enciso-MorenoAbstract INTRODUCTION: Biomarkers are critical tools for finding new approaches for controlling the spread of tuberculosis (TB), including for predicting the development of TB therapeutics, vaccines, and diagnostic tools. METHODS: Expression of immune biomarkers was analyzed in peripheral blood cells stimulated and non-stimulated with M. tuberculosis antigens ESAT-6, CFP10 and TB7.7. in Warao indigenous individuals. These biomarkers may be able to differentiate TB states, such as active tuberculosis (ATB) cases and latent tuberculosis infection (LTBI) from non-infected controls (NIC). A real-time reverse transcription polymerase chain reaction (RT-qPCR) assay was performed on 100 blood samples under non-stimulation or direct ex vivo conditions (NS=50) and stimulation conditions (S=50). RESULTS: The findings are shown as the median and interquartile range (IQR) of relative gene expression levels of IFN-γ, CD14, MMP9, CCR5, CCL11, CXCL9/MIG, and uPAR/PLAUR immune biomarkers. MMP9 levels were significantly higher in the LTBI-NS and LTBI-S groups compared with the NIC-NS and NIC-S groups. However, CCR5 levels were significantly lower in the LTBI-S group compared with both NIC-NS and NIC-S groups. CCL11 levels were significantly lower in the LTBI-S group compared with the NIC-NS group. CONCLUSIONS: Preliminary findings showed that MMP9 immune biomarkers separated LTBI indigenous individuals from NIC indigenous individuals, while CCR5, CCL11, CD14, and IFN-γ did not differentiate TB states from NIC. MMP9 may be useful as a potential biomarker for LTBI and new infected case detection among Warao indigenous individuals at high risk of developing the disease. It may also be used to halt the epidemic, which will require further validation in larger studies.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822019000100319&lng=en&tlng=enTuberculosisWarao indigenousImmune biomarkerReal-time quantitative PCR (qPCR) |
| spellingShingle | Zaida Araujo Andrea Palacios Leonor Enciso-Moreno Juan Ernesto Lopez-Ramos Albina Wide Jacobus Henri de Waard Bruno Rivas-Santiago Carmen Judith Serrano Yadira Bastian-Hernandez Julio Enrique Castañeda-Delgado Jose Antonio Enciso-Moreno Evaluation of the transcriptional immune biomarkers in peripheral blood from Warao indigenous associate with the infection by Mycobacterium tuberculosis Revista da Sociedade Brasileira de Medicina Tropical Tuberculosis Warao indigenous Immune biomarker Real-time quantitative PCR (qPCR) |
| title | Evaluation of the transcriptional immune biomarkers in peripheral blood from Warao indigenous associate with the infection by Mycobacterium tuberculosis |
| title_full | Evaluation of the transcriptional immune biomarkers in peripheral blood from Warao indigenous associate with the infection by Mycobacterium tuberculosis |
| title_fullStr | Evaluation of the transcriptional immune biomarkers in peripheral blood from Warao indigenous associate with the infection by Mycobacterium tuberculosis |
| title_full_unstemmed | Evaluation of the transcriptional immune biomarkers in peripheral blood from Warao indigenous associate with the infection by Mycobacterium tuberculosis |
| title_short | Evaluation of the transcriptional immune biomarkers in peripheral blood from Warao indigenous associate with the infection by Mycobacterium tuberculosis |
| title_sort | evaluation of the transcriptional immune biomarkers in peripheral blood from warao indigenous associate with the infection by mycobacterium tuberculosis |
| topic | Tuberculosis Warao indigenous Immune biomarker Real-time quantitative PCR (qPCR) |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822019000100319&lng=en&tlng=en |
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