| Autor: |
Marçal, Pedro Henrique Ferreira, Souza, Márcio Luís Moreira de, Gama, Rafael Silva, Oliveira, Lorena Bruna Pereira de, Gomes, Matheus de Souza, Amaral, Laurence Rodrigues do, Pinheiro, Roberta Olmo, Sarno, Euzenir Nunes, Moraes, Milton Ozório, Fairley, Jessica K, Martins-Filho, Olindo Assis, Fraga, Lucia Alves de Oliveira |
| Předmět: |
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| Zdroj: |
Open Forum Infectious Diseases; Mar2022, Vol. 9 Issue 3, p1-9, 9p |
| Abstrakt: |
Background Immunological biomarkers have often been used as a complementary approach to support clinical diagnosis in several infectious diseases. The lack of commercially available laboratory tests for conclusive early diagnosis of leprosy has motivated the search for novel methods for accurate diagnosis. In the present study, we describe an integrated analysis of a cytokine release assay using a machine learning approach to create a decision tree algorithm. This algorithm was used to classify leprosy clinical forms and monitor household contacts. Methods A model of Mycobacterium leprae antigen-specific in vitro assay with subsequent cytokine measurements by enzyme-linked immunosorbent assay was employed to measure the levels of tumor necrosis factor (TNF), interferon-γ, interleukin 4, and interleukin 10 (IL-10) in culture supernatants of peripheral blood mononuclear cells from patients with leprosy, healthy controls, and household contacts. Receiver operating characteristic curve analysis was carried out to define each cytokine's global accuracy and performance indices to identify clinical subgroups. Results Data demonstrated that TNF (control culture [CC]: AUC = 0.72; antigen-stimulated culture [Ml]: AUC = 0.80) and IL-10 (CC: AUC = 0.77; Ml: AUC = 0.71) were the most accurate biomarkers to classify subgroups of household contacts and patients with leprosy, respectively. Decision tree classifier algorithms for TNF analysis categorized subgroups of household contacts according to the operational classification with moderate accuracy (CC: 79% [48/61]; Ml: 84% [51/61]). Additionally, IL-10 analysis categorized leprosy patients' subgroups with moderate accuracy (CC: 73% [22/30] and Ml: 70% [21/30]). Conclusions Together, our findings demonstrated that a cytokine release assay is a promising method to complement clinical diagnosis, ultimately contributing to effective control of the disease. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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