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de Oliveira Rezende A, Sabóia RS, da Costa AC, da Silva Monteiro DMP, Zagmignan A, Santiago LÂM, Carvalho RC, Pereira PVS, Junqueira-Kipnis AP, de Sousa EM. Restricted Activation of the NF-κB Pathway in Individuals with Latent Tuberculosis Infection after HIF-1α Blockade. Biomedicines 2022; 10:biomedicines10040817. [PMID: 35453567 PMCID: PMC9024452 DOI: 10.3390/biomedicines10040817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 03/25/2022] [Accepted: 03/28/2022] [Indexed: 11/16/2022] Open
Abstract
Tuberculous granuloma formation is mediated by hypoxia-inducible factor 1 alpha (HIF-1α), and is essential for establishing latent tuberculosis infection (LTBI) and its progression to active tuberculosis (TB). Here, we investigated whether HIF-1α expression and adjacent mechanisms were associated with latent or active TB infection. Patients with active TB, individuals with LTBI, and healthy controls were recruited, and the expression of cytokine genes IL15, IL18, TNFA, IL6, HIF1A, and A20 in peripheral blood mononuclear cells (PBMCs) and serum vitamin D (25(OH)D3) levels were evaluated. Additionally, nuclear factor kappa B (NF-κB) and tumor necrosis factor-alpha (TNF-α) levels were analyzed in PBMC lysates and culture supernatants, respectively, after HIF-1α blockade with 2-methoxyestradiol. We observed that IL-15 expression was higher in individuals with LTBI than in patients with active TB, while IL-18 and TNF-α expression was similar between LTBI and TB groups. Additionally, serum 25(OH)D3 levels and expression of IL-6, HIF1A, and A20 were higher in patients with active TB than in individuals with LTBI. Moreover, PBMCs from individuals with LTBI showed decreased NF-κB phosphorylation and increased TNF-α production after HIF-1α blockade. Together, these results suggest that under hypoxic conditions, TNF-α production and NF-κB pathway downregulation are associated with the LTBI phenotype.
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Affiliation(s)
- Aline de Oliveira Rezende
- Graduate Program in Health Sciences, Federal University of Maranhão—UFMA, São Luís 65080-805, Brazil; (A.d.O.R.); (R.C.C.); (P.V.S.P.)
| | - Rafaella Santos Sabóia
- Graduate Program in Microbial Biology, CEUMA University—UniCEUMA, São Luís 65075-120, Brazil;
| | | | | | - Adrielle Zagmignan
- Graduate Program in Health and Services Management, CEUMA University—UniCEUMA, São Luís 65075-120, Brazil; (D.M.P.d.S.M.); (A.Z.)
| | - Luis Ângelo Macedo Santiago
- Graduate Program in Biodiversity and Biotechnology, Amazônia-BIONORTE, Federal University of Maranhão—UFMA, São Luís 65080-805, Brazil;
| | - Rafael Cardoso Carvalho
- Graduate Program in Health Sciences, Federal University of Maranhão—UFMA, São Luís 65080-805, Brazil; (A.d.O.R.); (R.C.C.); (P.V.S.P.)
| | - Paulo Vitor Soeiro Pereira
- Graduate Program in Health Sciences, Federal University of Maranhão—UFMA, São Luís 65080-805, Brazil; (A.d.O.R.); (R.C.C.); (P.V.S.P.)
| | - Ana Paula Junqueira-Kipnis
- Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia 74605-050, Brazil;
| | - Eduardo Martins de Sousa
- Graduate Program in Health Sciences, Federal University of Maranhão—UFMA, São Luís 65080-805, Brazil; (A.d.O.R.); (R.C.C.); (P.V.S.P.)
- Graduate Program in Microbial Biology, CEUMA University—UniCEUMA, São Luís 65075-120, Brazil;
- Graduate Program in Biodiversity and Biotechnology, Amazônia-BIONORTE, Federal University of Maranhão—UFMA, São Luís 65080-805, Brazil;
- Correspondence:
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