Abstract
Protein arrays are powerful tools for antibody profiling and vaccine development against infectious agents. In the previous report, we successfully applied an antibody-based protein array for immunoprofiling of Plasmodium vivax infection. Herein, we developed a Ni-NTA surface based protein array to detect immune responses against the recombinant C-terminal region (19 and 42 kDa) of the P. vivax merozoite surface protein 1 (PvMSP1-19 and -42) from sera of vivax malaria patients. The PvMSP1-19 arrays detected P. vivax in 112 of 130 (86.2%; 95% CI, 83.2-89.2%) microscopically positive samples and 2 false positives were obtained among 100 sera samples from healthy subjects (2.0%; 95% CI, 0.6-3.4%). These results were in concordance with results of enzyme-linked immunosorbent assays (ELISA). Kappa values represented excellent agreement for the recombinant PvMSP1-19 protein against sera samples as measured by protein arrays and ELISA (Kappa=0.904, 95% CI: 0.849-0.960). The PvMSP1-42 protein arrays detected antibody response in 100 of 130 microscopically positive samples (76.9%; 95% CI, 72.4-86.8%) and 8 false positives were obtained in 100 healthy subjects (8.0%; 95% CI, 2.7-13.3%). There is no significant difference between the fluorescent intensity of antibody response to PvMSP1-19 and PvMSP1-42 in the positive sera samples (P>0.05). The novel protein array platform may be used for profiling naturally acquired humoral immune responses to P. vivax infection.
| Original language | English |
|---|---|
| Pages (from-to) | 1259-1266 |
| Number of pages | 8 |
| Journal | Parasitology Research |
| Volume | 109 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2011 Nov 1 |
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ASJC Scopus subject areas
- Parasitology
- Infectious Diseases
Cite this
Measurement of naturally acquired humoral immune responses against the C-terminal region of the Plasmodium vivax MSP1 protein using protein arrays. / Chen, Jun Hu; Wang, Yue; Ha, Kwon Soo; Lu, Feng; Suh, In Bum; Lim, Chae Seung; Park, Jeong Hyun; Takeo, Satoru; Tsuboi, Takafumi; Han, Eun Taek.
In: Parasitology Research, Vol. 109, No. 5, 01.11.2011, p. 1259-1266.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Measurement of naturally acquired humoral immune responses against the C-terminal region of the Plasmodium vivax MSP1 protein using protein arrays
AU - Chen, Jun Hu
AU - Wang, Yue
AU - Ha, Kwon Soo
AU - Lu, Feng
AU - Suh, In Bum
AU - Lim, Chae Seung
AU - Park, Jeong Hyun
AU - Takeo, Satoru
AU - Tsuboi, Takafumi
AU - Han, Eun Taek
PY - 2011/11/1
Y1 - 2011/11/1
N2 - Protein arrays are powerful tools for antibody profiling and vaccine development against infectious agents. In the previous report, we successfully applied an antibody-based protein array for immunoprofiling of Plasmodium vivax infection. Herein, we developed a Ni-NTA surface based protein array to detect immune responses against the recombinant C-terminal region (19 and 42 kDa) of the P. vivax merozoite surface protein 1 (PvMSP1-19 and -42) from sera of vivax malaria patients. The PvMSP1-19 arrays detected P. vivax in 112 of 130 (86.2%; 95% CI, 83.2-89.2%) microscopically positive samples and 2 false positives were obtained among 100 sera samples from healthy subjects (2.0%; 95% CI, 0.6-3.4%). These results were in concordance with results of enzyme-linked immunosorbent assays (ELISA). Kappa values represented excellent agreement for the recombinant PvMSP1-19 protein against sera samples as measured by protein arrays and ELISA (Kappa=0.904, 95% CI: 0.849-0.960). The PvMSP1-42 protein arrays detected antibody response in 100 of 130 microscopically positive samples (76.9%; 95% CI, 72.4-86.8%) and 8 false positives were obtained in 100 healthy subjects (8.0%; 95% CI, 2.7-13.3%). There is no significant difference between the fluorescent intensity of antibody response to PvMSP1-19 and PvMSP1-42 in the positive sera samples (P>0.05). The novel protein array platform may be used for profiling naturally acquired humoral immune responses to P. vivax infection.
AB - Protein arrays are powerful tools for antibody profiling and vaccine development against infectious agents. In the previous report, we successfully applied an antibody-based protein array for immunoprofiling of Plasmodium vivax infection. Herein, we developed a Ni-NTA surface based protein array to detect immune responses against the recombinant C-terminal region (19 and 42 kDa) of the P. vivax merozoite surface protein 1 (PvMSP1-19 and -42) from sera of vivax malaria patients. The PvMSP1-19 arrays detected P. vivax in 112 of 130 (86.2%; 95% CI, 83.2-89.2%) microscopically positive samples and 2 false positives were obtained among 100 sera samples from healthy subjects (2.0%; 95% CI, 0.6-3.4%). These results were in concordance with results of enzyme-linked immunosorbent assays (ELISA). Kappa values represented excellent agreement for the recombinant PvMSP1-19 protein against sera samples as measured by protein arrays and ELISA (Kappa=0.904, 95% CI: 0.849-0.960). The PvMSP1-42 protein arrays detected antibody response in 100 of 130 microscopically positive samples (76.9%; 95% CI, 72.4-86.8%) and 8 false positives were obtained in 100 healthy subjects (8.0%; 95% CI, 2.7-13.3%). There is no significant difference between the fluorescent intensity of antibody response to PvMSP1-19 and PvMSP1-42 in the positive sera samples (P>0.05). The novel protein array platform may be used for profiling naturally acquired humoral immune responses to P. vivax infection.
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UR - http://www.scopus.com/inward/citedby.url?scp=82955182188&partnerID=8YFLogxK
U2 - 10.1007/s00436-011-2370-z
DO - 10.1007/s00436-011-2370-z
M3 - Article
VL - 109
SP - 1259
EP - 1266
JO - Parasitology Research
JF - Parasitology Research
SN - 0932-0113
IS - 5
ER -