Abstract
Background: Mannose-binding lectin (MBL) is a circulating collectin that is part of the innate immune response. We explored the serum levels of MBL in persons with different forms of coccidioidomycosis. Methods: Serum MBL was measured by ELISA from samples obtained from healthy donors with immunity to Coccidioides, and those with various forms of active coccidioidomycosis. Blood cell specimens from a subgroup of subjects with active coccidioidomycosis were examined for single nucleotide polymorphisms of the MBL gene and promoter regions. Results: The control group comprised 29 healthy immune subjects. Patient groups with active coccidioidomycosis consisted of 20 patients with symptomatic primary pulmonary coccidioidomycosis, 26 with non-meningeal disseminated coccidioidomycosis, and nine with coccidioidal meningitis. The group with active coccidioidomycosis was significantly older and more likely to be male than the control group (for both, P < 0.001). The mean ± SEM level of serum MBL in the healthy controls was 169.4 ± 28.6 ng/ml, significantly higher than the 79.2 ± 10.9 ng/ml for all active groups (P < 0.001). Moreover, the active coccidioidomycosis group was significantly more likely to have serum MBL level 70 ng/ml compared to the control group (P = 0.001). Genetic analysis in 27 subjects with active coccidioidomycosis revealed marked variation based on race and ethnicity. Among a subgroup of 10 white, non-hispanic men with active coccidioidomycosis, there was a significant association between the H and P haplotypes and MBL levels 70 ng/ml (P < 0.036 and P < 0.035, respectively). Conclusions: These data suggest that there is an association between low serum MBL levels and symptomatic coccidioidomycosis.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 173-180 |
| Number of pages | 8 |
| Journal | Mycopathologia |
| Volume | 167 |
| Issue number | 4 |
| DOIs | |
| State | Published - Apr 2009 |
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Keywords
- Coccidioides
- Coccidioidomycosis
- Collectins
- Human
- Innate immunity
- Mannose binding lectin
ASJC Scopus subject areas
- Plant Science
- Agronomy and Crop Science
- Applied Microbiology and Biotechnology
- Microbiology
- veterinary (miscalleneous)
Cite this
Mannose-binding lectin serum levels are low in persons with clinically active coccidioidomycosis. / Ampel, Neil M.; Dionne, Sara O.; Giblin, Andrea; Podany, Abigail B.; Galgiani, John N.
In: Mycopathologia, Vol. 167, No. 4, 04.2009, p. 173-180.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Mannose-binding lectin serum levels are low in persons with clinically active coccidioidomycosis
AU - Ampel, Neil M.
AU - Dionne, Sara O.
AU - Giblin, Andrea
AU - Podany, Abigail B.
AU - Galgiani, John N
PY - 2009/4
Y1 - 2009/4
N2 - Background: Mannose-binding lectin (MBL) is a circulating collectin that is part of the innate immune response. We explored the serum levels of MBL in persons with different forms of coccidioidomycosis. Methods: Serum MBL was measured by ELISA from samples obtained from healthy donors with immunity to Coccidioides, and those with various forms of active coccidioidomycosis. Blood cell specimens from a subgroup of subjects with active coccidioidomycosis were examined for single nucleotide polymorphisms of the MBL gene and promoter regions. Results: The control group comprised 29 healthy immune subjects. Patient groups with active coccidioidomycosis consisted of 20 patients with symptomatic primary pulmonary coccidioidomycosis, 26 with non-meningeal disseminated coccidioidomycosis, and nine with coccidioidal meningitis. The group with active coccidioidomycosis was significantly older and more likely to be male than the control group (for both, P < 0.001). The mean ± SEM level of serum MBL in the healthy controls was 169.4 ± 28.6 ng/ml, significantly higher than the 79.2 ± 10.9 ng/ml for all active groups (P < 0.001). Moreover, the active coccidioidomycosis group was significantly more likely to have serum MBL level 70 ng/ml compared to the control group (P = 0.001). Genetic analysis in 27 subjects with active coccidioidomycosis revealed marked variation based on race and ethnicity. Among a subgroup of 10 white, non-hispanic men with active coccidioidomycosis, there was a significant association between the H and P haplotypes and MBL levels 70 ng/ml (P < 0.036 and P < 0.035, respectively). Conclusions: These data suggest that there is an association between low serum MBL levels and symptomatic coccidioidomycosis.
AB - Background: Mannose-binding lectin (MBL) is a circulating collectin that is part of the innate immune response. We explored the serum levels of MBL in persons with different forms of coccidioidomycosis. Methods: Serum MBL was measured by ELISA from samples obtained from healthy donors with immunity to Coccidioides, and those with various forms of active coccidioidomycosis. Blood cell specimens from a subgroup of subjects with active coccidioidomycosis were examined for single nucleotide polymorphisms of the MBL gene and promoter regions. Results: The control group comprised 29 healthy immune subjects. Patient groups with active coccidioidomycosis consisted of 20 patients with symptomatic primary pulmonary coccidioidomycosis, 26 with non-meningeal disseminated coccidioidomycosis, and nine with coccidioidal meningitis. The group with active coccidioidomycosis was significantly older and more likely to be male than the control group (for both, P < 0.001). The mean ± SEM level of serum MBL in the healthy controls was 169.4 ± 28.6 ng/ml, significantly higher than the 79.2 ± 10.9 ng/ml for all active groups (P < 0.001). Moreover, the active coccidioidomycosis group was significantly more likely to have serum MBL level 70 ng/ml compared to the control group (P = 0.001). Genetic analysis in 27 subjects with active coccidioidomycosis revealed marked variation based on race and ethnicity. Among a subgroup of 10 white, non-hispanic men with active coccidioidomycosis, there was a significant association between the H and P haplotypes and MBL levels 70 ng/ml (P < 0.036 and P < 0.035, respectively). Conclusions: These data suggest that there is an association between low serum MBL levels and symptomatic coccidioidomycosis.
KW - Coccidioides
KW - Coccidioidomycosis
KW - Collectins
KW - Human
KW - Innate immunity
KW - Mannose binding lectin
UR - http://www.scopus.com/inward/record.url?scp=63149138219&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=63149138219&partnerID=8YFLogxK
U2 - 10.1007/s11046-008-9172-6
DO - 10.1007/s11046-008-9172-6
M3 - Article
VL - 167
SP - 173
EP - 180
JO - Mycopathologia
JF - Mycopathologia
SN - 0301-486X
IS - 4
ER -