Potential utility of protein targets of cysteine-s-nitrosylation in identifying clinical disease status in human chagas disease

Maria Paola Zago, John E. Wiktorowicz, Heidi Spratt, Sue Jie Koo, Natalia Barrientos, Aida Nuñez Burgos, Julio Nuñez Burgos, Facundo Iñiguez, Valentina Botelli, Ricardo Leon De La Fuente, Nisha Garg

Research output: Contribution to journalArticle

Abstract

Trypanosoma cruzi (Tc) infection causes Chagas disease (ChD) presented by dilated cardiomyopathy and heart failure. During infection, oxidative and nitrosative stresses are elicited by the immune cells for control the pathogen; however, excess nitric oxide and superoxide production can result in cysteine S-nitrosylation (SNO) of host proteins that affects cellular homeostasis and may contribute to disease development. To identify the proteins with changes in SNO modification levels as a hallmark of ChD, we obtained peripheral blood mononuclear cells (PBMC) from seronegative, normal healthy (NH, n = 30) subjects, and from seropositive clinically asymptomatic (ChD CA, n = 25) or clinically symptomatic (ChD CS, n = 28) ChD patients. All samples were treated (Asc+) or not-treated (Asc-) with ascorbate (reduces nitrosylated thiols), labeled with the thiol-labeling BODIPY FL-maleimide dye, resolved by two-dimensional electrophoresis (total 166 gels), and the protein spots that yielded significant differences in abundance or SNO level at p-value of < 0.05t-test/Welch/BH were identified by MALDI-TOF/TOF MS or OrbiTrap LC-MS/MS. Targeted analysis of a new cohort of PBMC samples (n = 10-14/group) was conducted to verify the differential abundance/SNO levels of two of the proteins in ChD (vs. NH) subjects. The multivariate adaptive regression splines (MARS) modeling, comparing differences in relative SNO level (Asc-/Asc+ ratio) of the protein spots between any two groups yielded SNO biomarkers that exhibited >90% prediction success in classifying ChD CA (582-KRT1 and 884-TPM3) and ChD CS (426-PNP, 582-KRT1, 486-ALB, 662-ACTB) patients from NH controls. Ingenuity Pathway Analysis (IPA) of the SNO proteome dataset normalized to changes in protein abundance suggested the proteins belonging to the signaling networks of cell death and the recruitment and migration of immune cells were most affected in ChD CA and ChD CS (vs. NH) subjects. We propose that SNO modification of the select panel of proteins identified in this study have the potential to identify ChD severity in seropositive individuals exposed to Tc infection.

Original languageEnglish (US)
Article number03320
JournalFrontiers in Microbiology
Volume10
Issue numberJAN
DOIs
StatePublished - Jan 1 2019

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Chagas Disease
Cysteine
Proteins
Trypanosoma cruzi
Sulfhydryl Compounds
Infection
Asymptomatic Diseases
Dilated Cardiomyopathy
Proteome
Superoxides
Cell Movement
Electrophoresis
Blood Cells
Nitric Oxide
Oxidative Stress
Homeostasis
Cell Death
Coloring Agents
Heart Failure
Gels

Keywords

  • 2DE
  • Chagas cardiomyopathy
  • infectious disease
  • mass spectrometry
  • peripheral blood mononuclear cells
  • S-nitrosylation
  • Trypanosoma cruzi

ASJC Scopus subject areas

  • Microbiology
  • Microbiology (medical)

Cite this

Potential utility of protein targets of cysteine-s-nitrosylation in identifying clinical disease status in human chagas disease. / Zago, Maria Paola; Wiktorowicz, John E.; Spratt, Heidi; Koo, Sue Jie; Barrientos, Natalia; Burgos, Aida Nuñez; Burgos, Julio Nuñez; Iñiguez, Facundo; Botelli, Valentina; De La Fuente, Ricardo Leon; Garg, Nisha.

In: Frontiers in Microbiology, Vol. 10, No. JAN, 03320, 01.01.2019.

Research output: Contribution to journalArticle

Zago, MP, Wiktorowicz, JE, Spratt, H, Koo, SJ, Barrientos, N, Burgos, AN, Burgos, JN, Iñiguez, F, Botelli, V, De La Fuente, RL & Garg, N 2019, 'Potential utility of protein targets of cysteine-s-nitrosylation in identifying clinical disease status in human chagas disease', Frontiers in Microbiology, vol. 10, no. JAN, 03320. https://doi.org/10.3389/fmicb.2018.03320
Zago, Maria Paola ; Wiktorowicz, John E. ; Spratt, Heidi ; Koo, Sue Jie ; Barrientos, Natalia ; Burgos, Aida Nuñez ; Burgos, Julio Nuñez ; Iñiguez, Facundo ; Botelli, Valentina ; De La Fuente, Ricardo Leon ; Garg, Nisha. / Potential utility of protein targets of cysteine-s-nitrosylation in identifying clinical disease status in human chagas disease. In: Frontiers in Microbiology. 2019 ; Vol. 10, No. JAN.
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AU - Koo, Sue Jie

AU - Barrientos, Natalia

AU - Burgos, Aida Nuñez

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