Nanofocused Scanning X-ray Fluorescence Microscopy Revealing an Effect of Heterozygous Hemoglobin S and C on Biochemical Activities in Plasmodium falciparum-Infected Erythrocytes
- Heidelberg Univ. (Germany)
- European Synchrotron Radiation Facility (ESRF), Grenoble (France); Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II)
- Universitätsklinikum Heidelberg (Germany)
- The European Synchrotron Radiation Facility (ESRF), 38043 Grenoble, France
- Heidelberg Univ. (Germany); Kyoto Univ. (Japan)
While there is ample evidence suggesting that carriers of heterozygous hemoglobin S and C are protected from life-threatening malaria, little is known about the underlying biochemical mechanisms at the single cell level. In this work, using nanofocused scanning X-ray fluorescence microscopy, we quantify the spatial distribution of individual elements in subcellular compartments, including Fe, S, P, Zn, and Cu, in Plasmodium falciparum-infected (P. falciparum-infected) erythrocytes carrying the wild type or variant hemoglobins. Our data indicate that heterozygous hemoglobin S and C significantly modulate biochemical reactions in parasitized erythrocytes, such as aberrant hemozoin mineralization and a delay in hemoglobin degradation. The label-free scanning X-ray fluorescence imaging has great potential to quantify the spatial distribution of elements in subcellular compartments of P. falciparum-infected erythrocytes and unravel the biochemical mechanisms underpinning disease and protective traits.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); German Research Foundation (DFG); Germany’s Excellence Strategy; Japan Society for the Promotion of Science (JSPS); Nakatani Foundation
- Grant/Contract Number:
- SC0012704; SFB1129 P3; 2082/1-390761711
- OSTI ID:
- 1646582
- Report Number(s):
- BNL-216237-2020-JAAM
- Journal Information:
- Analytical Chemistry, Vol. 92, Issue 8; ISSN 0003-2700
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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