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RESEARCH PRODUCT
Quantitative and qualitative profiles of circulating monocytes may help identifying tuberculosis infection and disease stages
Antonio CascioMarco Pio La MannaPaola Di CarloNadia CaccamoDelia GolettiGilda CuzziFrancesco DieliValentina OrlandoFabrizio Palmierisubject
0301 basic medicineBacterial DiseasesMalelcsh:MedicineMycobacterium tuberculosiMonocyteMonocytesWhite Blood Cells0302 clinical medicineAnimal CellsMedicine and Health SciencesLymphocyteslcsh:ScienceImmune ResponseAged 80 and overMultidisciplinarybiologyMiddle Aged3. Good healthActinobacteriamedicine.anatomical_structureInfectious DiseasesPhenotypeAdolescent; Adult; Aged; Aged 80 and over; Biomarkers; Case-Control Studies; Female; Humans; Male; Middle Aged; Monocytes; Mycobacterium tuberculosis; Phenotype; Tuberculosis; Young Adult; Biochemistry Genetics and Molecular Biology (all); Agricultural and Biological Sciences (all)Biomarker (medicine)Tuberculosis Diagnosis and ManagementFemaleCellular TypesCase-Control StudieResearch ArticleHumanAdultTuberculosisAdolescentTuberculosiImmune CellsImmunologyMycobacterium tuberculosis03 medical and health sciencesYoung AdultTuberculosis diagnosisDiagnostic MedicinemedicineHumansTuberculosisAgedBlood CellsBiochemistry Genetics and Molecular Biology (all)Receiver operating characteristicBacteriabusiness.industryMonocytelcsh:RCase-control studyOrganismsBiology and Life SciencesMycobacterium tuberculosisCell BiologyBiomarkerbiology.organism_classificationmedicine.diseaseTropical DiseasesConfidence interval030104 developmental biologyAgricultural and Biological Sciences (all)Case-Control StudiesImmunologylcsh:QbusinessBiomarkers030215 immunologydescription
Tuberculosis (TB) is one of the most important cause of morbidity and death among infectious diseases, and continuous efforts are needed to improve diagnostic tools and therapy. Previous published studies showed that the absolute cells number of monocytes or lymphocytes in peripheral blood or yet the ratio of monocytes to lymphocytes displayed the ability to predict the risk of active TB. In the present study we evaluated the ratio of monocytes to lymphocytes variation and we also analyzed the ex-vivo expression of CD64 on monocytes as tools to identify biomarkers for discriminating TB stages. Significant differences were found when the average ratio of monocytes to lymphocytes of active TB patients was compared with latent TB infection (LTBI) subjects, cured TB and healthy donors (HD). By the receiver operator characteristics (ROC) curve analysis the cut-off value of 0.285, allowed the discrimination of active TB from HD, with a sensitivity of 91.04% and a specificity of 93.55% (95% of confidence interval: 0.92–0.99). The ROC curve analysis comparing TB patients and LTBI groups, led to a sensitivity and the specificity of the assay of 85.07% and 85.71%, respectively (95% of confidence interval: 0.85 to 0.96). The upregulation of CD64 expression on circulating monocytes in active TB patients could represent an additional biomarker for diagnosis of active TB. In conclusion, we found that the ML ratio or monocyte absolute count or phenotypic measures show predictive value for active TB.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-01-01 |