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Geiser DL, Patel N, Patel P, Bhakta J, Velasquez LS, Winzerling JJ. Description of a Second Ferritin Light Chain Homologue From the Yellow Fever Mosquito (Diptera: Culicidae). JOURNAL OF INSECT SCIENCE 2017. [PMCID: PMC5751084 DOI: 10.1093/jisesa/iex096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Ferritin is required for iron storage in vertebrates and for iron transport and storage in invertebrates, specifically insects. Classical ferritins consist of 24 subunits configured as a polyhedron wherein iron is held. The 24 subunits include light and heavy chains, each with specific functions. Several homologues of the light and heavy chains have been sequenced and studied in insects. In addition to iron transport and storage, ferritin has a role in dietary iron absorption, and functions as a protective agent preventing iron overload, decreasing oxidative stress, and reducing infection in these animals. The expression profile and regulation of a second ferritin light chain homologue (LCH2) in Aedes aegypti [Linnaeus (Diptera: Culicidae), yellow fever mosquito] was characterized in cells, animal developmental stages, and tissues post bloodmeal (PBM) by real-time PCR and immunoblot. Two previously studied ferritin subunits from Ae. aegypti, HCH and LCH1, along with LCH2 were immunoprecipitated and analyzed by mass spectrometry. The three Ae. aegypti ferritin subunits, HCH, LCH1, and LCH2, have different expression profiles and regulation with iron exposure, developmental stage, and tissue response PBM. Ae. aegypti expresses multiple and unique ferritin light chain subunits. Ae. aegypti, the vector for Zika, Dengue, and yellow fever, requires iron for oogenesis that is transported and stored in ferritin; this vector expresses a second light chain ferritin subunit homologue unlike any other species in which ferritin has been studied to date.
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Affiliation(s)
- Dawn L Geiser
- Department of Nutritional Sciences, College of Agriculture and Life Sciences, the University of Arizona, Tucson, Arizona
- Corresponding author, e-mail:
| | - Naren Patel
- Department of Nutritional Sciences, College of Agriculture and Life Sciences, the University of Arizona, Tucson, Arizona
| | - Pritesh Patel
- Department of Nutritional Sciences, College of Agriculture and Life Sciences, the University of Arizona, Tucson, Arizona
| | - Janki Bhakta
- Department of Nutritional Sciences, College of Agriculture and Life Sciences, the University of Arizona, Tucson, Arizona
| | - Lissette S Velasquez
- Department of Nutritional Sciences, College of Agriculture and Life Sciences, the University of Arizona, Tucson, Arizona
| | - Joy J Winzerling
- Department of Nutritional Sciences, College of Agriculture and Life Sciences, the University of Arizona, Tucson, Arizona
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Ding Z, Zhao X, Zhan Q, Cui L, Sun Q, Wang W, Liu H. Comparative analysis of two ferritin subunits from blunt snout bream (Megalobrama amblycephala): Characterization, expression, iron depriving and bacteriostatic activity. FISH & SHELLFISH IMMUNOLOGY 2017; 66:411-422. [PMID: 28535971 DOI: 10.1016/j.fsi.2017.05.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 05/08/2017] [Accepted: 05/14/2017] [Indexed: 06/07/2023]
Abstract
Iron is an essential microelement for almost all living organisms, while an excess of iron is toxic, thus maintenance of iron homeostasis is vital. As iron storage protein, ferritin plays an important role in iron metabolism. In the present study, we cloned and characterized the ferritin H subunit from Megalobrama amblycephala, termed as MamFerH. An iron-responsive element (IRE) was predicted in the 5' untranslated region (UTR) of MamFerH, while its bulge structural was different from that of the reported ferritin M subunit (MamFerM). The MamFerH and MamFerM genes exhibited similar expression patterns during early development with specifically high expression post hatching, whereas their tissue expression patterns were different. Specifically, MamFerM was highly expressed in the spleen, liver and kidney, while MamFerH was predominantly expressed in the blood and brain, indicating their different functions. In addition, the expression of the two genes was induced upon Aeromonas hydrophila infection at both transcriptional and translational levels, and MamFerH was more efficient. Immunohistochemistry and immunofluorescence analysis confirmed their significant changes at protein level and distribution in the liver post infection, indicating their participation in host immune response. Furthermore, bacteriostatic experiment revealed that recombinant MamFerH displayed more significant inhibitory effect on the growth of A. hydrophila.
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Affiliation(s)
- Zhujin Ding
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China; Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, China
| | - Xiaoheng Zhao
- Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, China
| | - Qifeng Zhan
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China; Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, China
| | - Lei Cui
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China; Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, China
| | - Qianhui Sun
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China; Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, China
| | - Weimin Wang
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Hong Liu
- College of Fisheries, Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China; Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, China; Hubei Provincial Engineering Laboratory for Pond Aquaculture, National Demonstration Center for Experimental Aquaculture Education, Huazhong Agricultural University, Wuhan 430070, China.
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