S-layer proteins of Lactobacillus acidophilus inhibits JUNV infection
It has been previously described that S-layer binds to the C-type lectin DC-specific ICAM-3-grabbing nonintegrin (DC-SIGN, CD209). It was also shown that DC-SIGN is a cell-surface adhesion factor that enhances viral entry of several virus families. Among those, Junin virus (JUNV) entry is enhanced i...
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todo:paper_0006291X_v422_n4_p590_Martinez2023-10-03T14:04:00Z S-layer proteins of Lactobacillus acidophilus inhibits JUNV infection Martínez, M.G. Prado Acosta, M. Candurra, N.A. Ruzal, S.M. Antiviral Lactobacillus Surface layer antivirus agent calcium ion CD209 antigen intercellular adhesion molecule 3 probiotic agent protein slpa unclassified drug animal cell Argentine hemorrhagic fever article cell strain 3T3 computer model disease course evaluation human Lactobacillus acidophilus nonhuman priority journal virus entry 3T3 Cells Amino Acid Sequence Animals Antiviral Agents Arenaviridae Infections Bacterial Proteins Cell Adhesion Molecules Cercopithecus aethiops Consensus Sequence Junin virus Lactobacillus acidophilus Lectins, C-Type Membrane Glycoproteins Mice Molecular Sequence Data Receptors, Cell Surface Vero Cells Virus Internalization Junin virus Lactobacillus Lactobacillus acidophilus It has been previously described that S-layer binds to the C-type lectin DC-specific ICAM-3-grabbing nonintegrin (DC-SIGN, CD209). It was also shown that DC-SIGN is a cell-surface adhesion factor that enhances viral entry of several virus families. Among those, Junin virus (JUNV) entry is enhanced in cells expressing DC-SIGN and for that reason surface-layer protein (S-layer) of Lactobacillus acidophilus ATCC 4365 was evaluated as a possible JUNV inhibitor. Experiments using 3T3 cells stably expressing DC-SIGN, showed an almost complete inhibition of JUNV infection when they were treated with S-layer in a similar extend as the inhibition shown by mannan. However no inhibition effect was observed in 3T3 wild type cells or in 3T3 cells expressing liver/lymph node-specific ICAM-3 grabbing nonintegrin (L-SIGN or DC-SIGNR or CD209L).Treatments with S-layer during different times in the infection demonstrated that inhibition was only observed when S-layer was presented in early stages of the viral infection. This inhibition does not involve the classic recognition of mannose by this C-type lectin as the S-layer showed no evidence to be glycosylated. In fact, the highly basic nature of the S-layer (pI>9.5) seems to be involved in electrostatic interactions between DC-SIGN and S-layer, since high pH abolished the inhibitory effect on infection cause by the S-layer. In silico analysis predicts a Ca 2+-dependant carbohydrate recognition domain in the SlpA protein.This novel characteristic of the S-layer, a GRAS status protein, contribute to the pathogen exclusion reported for this probiotic strain and may be applied as an antiviral agent to inhibit several kinds of viruses. © 2012 Elsevier Inc.. Fil:Martínez, M.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Prado Acosta, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Candurra, N.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ruzal, S.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0006291X_v422_n4_p590_Martinez |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Antiviral Lactobacillus Surface layer antivirus agent calcium ion CD209 antigen intercellular adhesion molecule 3 probiotic agent protein slpa unclassified drug animal cell Argentine hemorrhagic fever article cell strain 3T3 computer model disease course evaluation human Lactobacillus acidophilus nonhuman priority journal virus entry 3T3 Cells Amino Acid Sequence Animals Antiviral Agents Arenaviridae Infections Bacterial Proteins Cell Adhesion Molecules Cercopithecus aethiops Consensus Sequence Junin virus Lactobacillus acidophilus Lectins, C-Type Membrane Glycoproteins Mice Molecular Sequence Data Receptors, Cell Surface Vero Cells Virus Internalization Junin virus Lactobacillus Lactobacillus acidophilus |
| spellingShingle |
Antiviral Lactobacillus Surface layer antivirus agent calcium ion CD209 antigen intercellular adhesion molecule 3 probiotic agent protein slpa unclassified drug animal cell Argentine hemorrhagic fever article cell strain 3T3 computer model disease course evaluation human Lactobacillus acidophilus nonhuman priority journal virus entry 3T3 Cells Amino Acid Sequence Animals Antiviral Agents Arenaviridae Infections Bacterial Proteins Cell Adhesion Molecules Cercopithecus aethiops Consensus Sequence Junin virus Lactobacillus acidophilus Lectins, C-Type Membrane Glycoproteins Mice Molecular Sequence Data Receptors, Cell Surface Vero Cells Virus Internalization Junin virus Lactobacillus Lactobacillus acidophilus Martínez, M.G. Prado Acosta, M. Candurra, N.A. Ruzal, S.M. S-layer proteins of Lactobacillus acidophilus inhibits JUNV infection |
| topic_facet |
Antiviral Lactobacillus Surface layer antivirus agent calcium ion CD209 antigen intercellular adhesion molecule 3 probiotic agent protein slpa unclassified drug animal cell Argentine hemorrhagic fever article cell strain 3T3 computer model disease course evaluation human Lactobacillus acidophilus nonhuman priority journal virus entry 3T3 Cells Amino Acid Sequence Animals Antiviral Agents Arenaviridae Infections Bacterial Proteins Cell Adhesion Molecules Cercopithecus aethiops Consensus Sequence Junin virus Lactobacillus acidophilus Lectins, C-Type Membrane Glycoproteins Mice Molecular Sequence Data Receptors, Cell Surface Vero Cells Virus Internalization Junin virus Lactobacillus Lactobacillus acidophilus |
| description |
It has been previously described that S-layer binds to the C-type lectin DC-specific ICAM-3-grabbing nonintegrin (DC-SIGN, CD209). It was also shown that DC-SIGN is a cell-surface adhesion factor that enhances viral entry of several virus families. Among those, Junin virus (JUNV) entry is enhanced in cells expressing DC-SIGN and for that reason surface-layer protein (S-layer) of Lactobacillus acidophilus ATCC 4365 was evaluated as a possible JUNV inhibitor. Experiments using 3T3 cells stably expressing DC-SIGN, showed an almost complete inhibition of JUNV infection when they were treated with S-layer in a similar extend as the inhibition shown by mannan. However no inhibition effect was observed in 3T3 wild type cells or in 3T3 cells expressing liver/lymph node-specific ICAM-3 grabbing nonintegrin (L-SIGN or DC-SIGNR or CD209L).Treatments with S-layer during different times in the infection demonstrated that inhibition was only observed when S-layer was presented in early stages of the viral infection. This inhibition does not involve the classic recognition of mannose by this C-type lectin as the S-layer showed no evidence to be glycosylated. In fact, the highly basic nature of the S-layer (pI>9.5) seems to be involved in electrostatic interactions between DC-SIGN and S-layer, since high pH abolished the inhibitory effect on infection cause by the S-layer. In silico analysis predicts a Ca 2+-dependant carbohydrate recognition domain in the SlpA protein.This novel characteristic of the S-layer, a GRAS status protein, contribute to the pathogen exclusion reported for this probiotic strain and may be applied as an antiviral agent to inhibit several kinds of viruses. © 2012 Elsevier Inc.. |
| format |
JOUR |
| author |
Martínez, M.G. Prado Acosta, M. Candurra, N.A. Ruzal, S.M. |
| author_facet |
Martínez, M.G. Prado Acosta, M. Candurra, N.A. Ruzal, S.M. |
| author_sort |
Martínez, M.G. |
| title |
S-layer proteins of Lactobacillus acidophilus inhibits JUNV infection |
| title_short |
S-layer proteins of Lactobacillus acidophilus inhibits JUNV infection |
| title_full |
S-layer proteins of Lactobacillus acidophilus inhibits JUNV infection |
| title_fullStr |
S-layer proteins of Lactobacillus acidophilus inhibits JUNV infection |
| title_full_unstemmed |
S-layer proteins of Lactobacillus acidophilus inhibits JUNV infection |
| title_sort |
s-layer proteins of lactobacillus acidophilus inhibits junv infection |
| url |
http://hdl.handle.net/20.500.12110/paper_0006291X_v422_n4_p590_Martinez |
| work_keys_str_mv |
AT martinezmg slayerproteinsoflactobacillusacidophilusinhibitsjunvinfection AT pradoacostam slayerproteinsoflactobacillusacidophilusinhibitsjunvinfection AT candurrana slayerproteinsoflactobacillusacidophilusinhibitsjunvinfection AT ruzalsm slayerproteinsoflactobacillusacidophilusinhibitsjunvinfection |
| _version_ |
1807321906807832576 |