Identification of subtilisin genes as a potential virulence factor in Trichophyton mentagrophytes isolated from human and bovine dermatophytosis lesions in Iran
Abstract Dermatophytes are responsible for the majority of human and animal cutaneous mycoses. Proteases secreted by dermatophytes offer potential virulence factors. Multiple proteases have been discovered as possible virulence factors. In Iran, however, no human nor animal isolates of Trichophyton...
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| Autor*in: |
Khedmati, Erfaneh [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2022 |
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© The Author(s), under exclusive licence to Springer-Verlag London Ltd., part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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| Übergeordnetes Werk: |
Enthalten in: Comparative haematology international - London : Springer, 1991, 32(2022), 2 vom: 20. Dez., Seite 217-224 |
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| Übergeordnetes Werk: |
volume:32 ; year:2022 ; number:2 ; day:20 ; month:12 ; pages:217-224 |
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| DOI / URN: |
10.1007/s00580-022-03429-y |
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| 520 | |a Abstract Dermatophytes are responsible for the majority of human and animal cutaneous mycoses. Proteases secreted by dermatophytes offer potential virulence factors. Multiple proteases have been discovered as possible virulence factors. In Iran, however, no human nor animal isolates of Trichophyton mentagrophytes have been examined for the presence of the subtilisin (SUB) gene family. Therefore, we investigated the existence of SUB1-7 genes in T. mentagrophytes isolated from dermatophytosis lesions in humans and animals. Ten and eight molecularly verified T. mentagrophytes isolates obtained from human and bovine dermatophytosis, respectively, were examined for the presence of SUB genes. In two multiplex PCR panels, all T. mentagrophytes strains were examined. The initial multiplex PCR primers detected the presence of SUB1, SUB4, SUB5, and SUB6. The second multiplex PCR panel includes SUB2, SUB3, and SUB7 specific primers. DNA sequencing of the ribosomal internal transcribed spacer (ITS) region has been used to positively identify all T. mentagrophytes isolates (rDNA). All T. mentagrophytes strains tested positive for SUB1, SUB2, SUB4, SUB6, and SUB7. While SUB5 was not found in any of the isolates, SUB3 was present in 90% of human and 100% of animal dermatophytosis samples. The presence of dermatophyte virulence factors, or SUB genes, is indicative of the existence of many dermatophyte species that share a common ancestor. However, the fact that our clinical isolates lacked the SUB5 gene suggests that not all SUB genes contribute to pathogenesis and infection. | ||
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10.1007/s00580-022-03429-y doi (DE-627)SPR049903489 (SPR)s00580-022-03429-y-e DE-627 ger DE-627 rakwb eng Khedmati, Erfaneh verfasserin (orcid)0000-0003-3273-3236 aut Identification of subtilisin genes as a potential virulence factor in Trichophyton mentagrophytes isolated from human and bovine dermatophytosis lesions in Iran 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag London Ltd., part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Dermatophytes are responsible for the majority of human and animal cutaneous mycoses. Proteases secreted by dermatophytes offer potential virulence factors. Multiple proteases have been discovered as possible virulence factors. In Iran, however, no human nor animal isolates of Trichophyton mentagrophytes have been examined for the presence of the subtilisin (SUB) gene family. Therefore, we investigated the existence of SUB1-7 genes in T. mentagrophytes isolated from dermatophytosis lesions in humans and animals. Ten and eight molecularly verified T. mentagrophytes isolates obtained from human and bovine dermatophytosis, respectively, were examined for the presence of SUB genes. In two multiplex PCR panels, all T. mentagrophytes strains were examined. The initial multiplex PCR primers detected the presence of SUB1, SUB4, SUB5, and SUB6. The second multiplex PCR panel includes SUB2, SUB3, and SUB7 specific primers. DNA sequencing of the ribosomal internal transcribed spacer (ITS) region has been used to positively identify all T. mentagrophytes isolates (rDNA). All T. mentagrophytes strains tested positive for SUB1, SUB2, SUB4, SUB6, and SUB7. While SUB5 was not found in any of the isolates, SUB3 was present in 90% of human and 100% of animal dermatophytosis samples. The presence of dermatophyte virulence factors, or SUB genes, is indicative of the existence of many dermatophyte species that share a common ancestor. However, the fact that our clinical isolates lacked the SUB5 gene suggests that not all SUB genes contribute to pathogenesis and infection. Dermatophyte (dpeaa)DE-He213 Subtilisin (dpeaa)DE-He213 Multiplex PCR (dpeaa)DE-He213 Iran (dpeaa)DE-He213 Hashemi-Hazaveh, Seyed Jamal aut Kachuei, Reza aut Bayat, Mansour aut Amini, Kumarss aut Enthalten in Comparative haematology international London : Springer, 1991 32(2022), 2 vom: 20. Dez., Seite 217-224 (DE-627)559430590 (DE-600)2413027-8 1433-2973 nnns volume:32 year:2022 number:2 day:20 month:12 pages:217-224 https://dx.doi.org/10.1007/s00580-022-03429-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_120 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 AR 32 2022 2 20 12 217-224 |
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10.1007/s00580-022-03429-y doi (DE-627)SPR049903489 (SPR)s00580-022-03429-y-e DE-627 ger DE-627 rakwb eng Khedmati, Erfaneh verfasserin (orcid)0000-0003-3273-3236 aut Identification of subtilisin genes as a potential virulence factor in Trichophyton mentagrophytes isolated from human and bovine dermatophytosis lesions in Iran 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag London Ltd., part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Dermatophytes are responsible for the majority of human and animal cutaneous mycoses. Proteases secreted by dermatophytes offer potential virulence factors. Multiple proteases have been discovered as possible virulence factors. In Iran, however, no human nor animal isolates of Trichophyton mentagrophytes have been examined for the presence of the subtilisin (SUB) gene family. Therefore, we investigated the existence of SUB1-7 genes in T. mentagrophytes isolated from dermatophytosis lesions in humans and animals. Ten and eight molecularly verified T. mentagrophytes isolates obtained from human and bovine dermatophytosis, respectively, were examined for the presence of SUB genes. In two multiplex PCR panels, all T. mentagrophytes strains were examined. The initial multiplex PCR primers detected the presence of SUB1, SUB4, SUB5, and SUB6. The second multiplex PCR panel includes SUB2, SUB3, and SUB7 specific primers. DNA sequencing of the ribosomal internal transcribed spacer (ITS) region has been used to positively identify all T. mentagrophytes isolates (rDNA). All T. mentagrophytes strains tested positive for SUB1, SUB2, SUB4, SUB6, and SUB7. While SUB5 was not found in any of the isolates, SUB3 was present in 90% of human and 100% of animal dermatophytosis samples. The presence of dermatophyte virulence factors, or SUB genes, is indicative of the existence of many dermatophyte species that share a common ancestor. However, the fact that our clinical isolates lacked the SUB5 gene suggests that not all SUB genes contribute to pathogenesis and infection. Dermatophyte (dpeaa)DE-He213 Subtilisin (dpeaa)DE-He213 Multiplex PCR (dpeaa)DE-He213 Iran (dpeaa)DE-He213 Hashemi-Hazaveh, Seyed Jamal aut Kachuei, Reza aut Bayat, Mansour aut Amini, Kumarss aut Enthalten in Comparative haematology international London : Springer, 1991 32(2022), 2 vom: 20. Dez., Seite 217-224 (DE-627)559430590 (DE-600)2413027-8 1433-2973 nnns volume:32 year:2022 number:2 day:20 month:12 pages:217-224 https://dx.doi.org/10.1007/s00580-022-03429-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_120 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 AR 32 2022 2 20 12 217-224 |
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10.1007/s00580-022-03429-y doi (DE-627)SPR049903489 (SPR)s00580-022-03429-y-e DE-627 ger DE-627 rakwb eng Khedmati, Erfaneh verfasserin (orcid)0000-0003-3273-3236 aut Identification of subtilisin genes as a potential virulence factor in Trichophyton mentagrophytes isolated from human and bovine dermatophytosis lesions in Iran 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag London Ltd., part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Dermatophytes are responsible for the majority of human and animal cutaneous mycoses. Proteases secreted by dermatophytes offer potential virulence factors. Multiple proteases have been discovered as possible virulence factors. In Iran, however, no human nor animal isolates of Trichophyton mentagrophytes have been examined for the presence of the subtilisin (SUB) gene family. Therefore, we investigated the existence of SUB1-7 genes in T. mentagrophytes isolated from dermatophytosis lesions in humans and animals. Ten and eight molecularly verified T. mentagrophytes isolates obtained from human and bovine dermatophytosis, respectively, were examined for the presence of SUB genes. In two multiplex PCR panels, all T. mentagrophytes strains were examined. The initial multiplex PCR primers detected the presence of SUB1, SUB4, SUB5, and SUB6. The second multiplex PCR panel includes SUB2, SUB3, and SUB7 specific primers. DNA sequencing of the ribosomal internal transcribed spacer (ITS) region has been used to positively identify all T. mentagrophytes isolates (rDNA). All T. mentagrophytes strains tested positive for SUB1, SUB2, SUB4, SUB6, and SUB7. While SUB5 was not found in any of the isolates, SUB3 was present in 90% of human and 100% of animal dermatophytosis samples. The presence of dermatophyte virulence factors, or SUB genes, is indicative of the existence of many dermatophyte species that share a common ancestor. However, the fact that our clinical isolates lacked the SUB5 gene suggests that not all SUB genes contribute to pathogenesis and infection. Dermatophyte (dpeaa)DE-He213 Subtilisin (dpeaa)DE-He213 Multiplex PCR (dpeaa)DE-He213 Iran (dpeaa)DE-He213 Hashemi-Hazaveh, Seyed Jamal aut Kachuei, Reza aut Bayat, Mansour aut Amini, Kumarss aut Enthalten in Comparative haematology international London : Springer, 1991 32(2022), 2 vom: 20. Dez., Seite 217-224 (DE-627)559430590 (DE-600)2413027-8 1433-2973 nnns volume:32 year:2022 number:2 day:20 month:12 pages:217-224 https://dx.doi.org/10.1007/s00580-022-03429-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_120 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 AR 32 2022 2 20 12 217-224 |
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10.1007/s00580-022-03429-y doi (DE-627)SPR049903489 (SPR)s00580-022-03429-y-e DE-627 ger DE-627 rakwb eng Khedmati, Erfaneh verfasserin (orcid)0000-0003-3273-3236 aut Identification of subtilisin genes as a potential virulence factor in Trichophyton mentagrophytes isolated from human and bovine dermatophytosis lesions in Iran 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag London Ltd., part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Dermatophytes are responsible for the majority of human and animal cutaneous mycoses. Proteases secreted by dermatophytes offer potential virulence factors. Multiple proteases have been discovered as possible virulence factors. In Iran, however, no human nor animal isolates of Trichophyton mentagrophytes have been examined for the presence of the subtilisin (SUB) gene family. Therefore, we investigated the existence of SUB1-7 genes in T. mentagrophytes isolated from dermatophytosis lesions in humans and animals. Ten and eight molecularly verified T. mentagrophytes isolates obtained from human and bovine dermatophytosis, respectively, were examined for the presence of SUB genes. In two multiplex PCR panels, all T. mentagrophytes strains were examined. The initial multiplex PCR primers detected the presence of SUB1, SUB4, SUB5, and SUB6. The second multiplex PCR panel includes SUB2, SUB3, and SUB7 specific primers. DNA sequencing of the ribosomal internal transcribed spacer (ITS) region has been used to positively identify all T. mentagrophytes isolates (rDNA). All T. mentagrophytes strains tested positive for SUB1, SUB2, SUB4, SUB6, and SUB7. While SUB5 was not found in any of the isolates, SUB3 was present in 90% of human and 100% of animal dermatophytosis samples. The presence of dermatophyte virulence factors, or SUB genes, is indicative of the existence of many dermatophyte species that share a common ancestor. However, the fact that our clinical isolates lacked the SUB5 gene suggests that not all SUB genes contribute to pathogenesis and infection. Dermatophyte (dpeaa)DE-He213 Subtilisin (dpeaa)DE-He213 Multiplex PCR (dpeaa)DE-He213 Iran (dpeaa)DE-He213 Hashemi-Hazaveh, Seyed Jamal aut Kachuei, Reza aut Bayat, Mansour aut Amini, Kumarss aut Enthalten in Comparative haematology international London : Springer, 1991 32(2022), 2 vom: 20. Dez., Seite 217-224 (DE-627)559430590 (DE-600)2413027-8 1433-2973 nnns volume:32 year:2022 number:2 day:20 month:12 pages:217-224 https://dx.doi.org/10.1007/s00580-022-03429-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_120 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 AR 32 2022 2 20 12 217-224 |
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10.1007/s00580-022-03429-y doi (DE-627)SPR049903489 (SPR)s00580-022-03429-y-e DE-627 ger DE-627 rakwb eng Khedmati, Erfaneh verfasserin (orcid)0000-0003-3273-3236 aut Identification of subtilisin genes as a potential virulence factor in Trichophyton mentagrophytes isolated from human and bovine dermatophytosis lesions in Iran 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag London Ltd., part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Dermatophytes are responsible for the majority of human and animal cutaneous mycoses. Proteases secreted by dermatophytes offer potential virulence factors. Multiple proteases have been discovered as possible virulence factors. In Iran, however, no human nor animal isolates of Trichophyton mentagrophytes have been examined for the presence of the subtilisin (SUB) gene family. Therefore, we investigated the existence of SUB1-7 genes in T. mentagrophytes isolated from dermatophytosis lesions in humans and animals. Ten and eight molecularly verified T. mentagrophytes isolates obtained from human and bovine dermatophytosis, respectively, were examined for the presence of SUB genes. In two multiplex PCR panels, all T. mentagrophytes strains were examined. The initial multiplex PCR primers detected the presence of SUB1, SUB4, SUB5, and SUB6. The second multiplex PCR panel includes SUB2, SUB3, and SUB7 specific primers. DNA sequencing of the ribosomal internal transcribed spacer (ITS) region has been used to positively identify all T. mentagrophytes isolates (rDNA). All T. mentagrophytes strains tested positive for SUB1, SUB2, SUB4, SUB6, and SUB7. While SUB5 was not found in any of the isolates, SUB3 was present in 90% of human and 100% of animal dermatophytosis samples. The presence of dermatophyte virulence factors, or SUB genes, is indicative of the existence of many dermatophyte species that share a common ancestor. However, the fact that our clinical isolates lacked the SUB5 gene suggests that not all SUB genes contribute to pathogenesis and infection. Dermatophyte (dpeaa)DE-He213 Subtilisin (dpeaa)DE-He213 Multiplex PCR (dpeaa)DE-He213 Iran (dpeaa)DE-He213 Hashemi-Hazaveh, Seyed Jamal aut Kachuei, Reza aut Bayat, Mansour aut Amini, Kumarss aut Enthalten in Comparative haematology international London : Springer, 1991 32(2022), 2 vom: 20. Dez., Seite 217-224 (DE-627)559430590 (DE-600)2413027-8 1433-2973 nnns volume:32 year:2022 number:2 day:20 month:12 pages:217-224 https://dx.doi.org/10.1007/s00580-022-03429-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_120 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 AR 32 2022 2 20 12 217-224 |
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Identification of subtilisin genes as a potential virulence factor in Trichophyton mentagrophytes isolated from human and bovine dermatophytosis lesions in Iran |
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Abstract Dermatophytes are responsible for the majority of human and animal cutaneous mycoses. Proteases secreted by dermatophytes offer potential virulence factors. Multiple proteases have been discovered as possible virulence factors. In Iran, however, no human nor animal isolates of Trichophyton mentagrophytes have been examined for the presence of the subtilisin (SUB) gene family. Therefore, we investigated the existence of SUB1-7 genes in T. mentagrophytes isolated from dermatophytosis lesions in humans and animals. Ten and eight molecularly verified T. mentagrophytes isolates obtained from human and bovine dermatophytosis, respectively, were examined for the presence of SUB genes. In two multiplex PCR panels, all T. mentagrophytes strains were examined. The initial multiplex PCR primers detected the presence of SUB1, SUB4, SUB5, and SUB6. The second multiplex PCR panel includes SUB2, SUB3, and SUB7 specific primers. DNA sequencing of the ribosomal internal transcribed spacer (ITS) region has been used to positively identify all T. mentagrophytes isolates (rDNA). All T. mentagrophytes strains tested positive for SUB1, SUB2, SUB4, SUB6, and SUB7. While SUB5 was not found in any of the isolates, SUB3 was present in 90% of human and 100% of animal dermatophytosis samples. The presence of dermatophyte virulence factors, or SUB genes, is indicative of the existence of many dermatophyte species that share a common ancestor. However, the fact that our clinical isolates lacked the SUB5 gene suggests that not all SUB genes contribute to pathogenesis and infection. © The Author(s), under exclusive licence to Springer-Verlag London Ltd., part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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Abstract Dermatophytes are responsible for the majority of human and animal cutaneous mycoses. Proteases secreted by dermatophytes offer potential virulence factors. Multiple proteases have been discovered as possible virulence factors. In Iran, however, no human nor animal isolates of Trichophyton mentagrophytes have been examined for the presence of the subtilisin (SUB) gene family. Therefore, we investigated the existence of SUB1-7 genes in T. mentagrophytes isolated from dermatophytosis lesions in humans and animals. Ten and eight molecularly verified T. mentagrophytes isolates obtained from human and bovine dermatophytosis, respectively, were examined for the presence of SUB genes. In two multiplex PCR panels, all T. mentagrophytes strains were examined. The initial multiplex PCR primers detected the presence of SUB1, SUB4, SUB5, and SUB6. The second multiplex PCR panel includes SUB2, SUB3, and SUB7 specific primers. DNA sequencing of the ribosomal internal transcribed spacer (ITS) region has been used to positively identify all T. mentagrophytes isolates (rDNA). All T. mentagrophytes strains tested positive for SUB1, SUB2, SUB4, SUB6, and SUB7. While SUB5 was not found in any of the isolates, SUB3 was present in 90% of human and 100% of animal dermatophytosis samples. The presence of dermatophyte virulence factors, or SUB genes, is indicative of the existence of many dermatophyte species that share a common ancestor. However, the fact that our clinical isolates lacked the SUB5 gene suggests that not all SUB genes contribute to pathogenesis and infection. © The Author(s), under exclusive licence to Springer-Verlag London Ltd., part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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Abstract Dermatophytes are responsible for the majority of human and animal cutaneous mycoses. Proteases secreted by dermatophytes offer potential virulence factors. Multiple proteases have been discovered as possible virulence factors. In Iran, however, no human nor animal isolates of Trichophyton mentagrophytes have been examined for the presence of the subtilisin (SUB) gene family. Therefore, we investigated the existence of SUB1-7 genes in T. mentagrophytes isolated from dermatophytosis lesions in humans and animals. Ten and eight molecularly verified T. mentagrophytes isolates obtained from human and bovine dermatophytosis, respectively, were examined for the presence of SUB genes. In two multiplex PCR panels, all T. mentagrophytes strains were examined. The initial multiplex PCR primers detected the presence of SUB1, SUB4, SUB5, and SUB6. The second multiplex PCR panel includes SUB2, SUB3, and SUB7 specific primers. DNA sequencing of the ribosomal internal transcribed spacer (ITS) region has been used to positively identify all T. mentagrophytes isolates (rDNA). All T. mentagrophytes strains tested positive for SUB1, SUB2, SUB4, SUB6, and SUB7. While SUB5 was not found in any of the isolates, SUB3 was present in 90% of human and 100% of animal dermatophytosis samples. The presence of dermatophyte virulence factors, or SUB genes, is indicative of the existence of many dermatophyte species that share a common ancestor. However, the fact that our clinical isolates lacked the SUB5 gene suggests that not all SUB genes contribute to pathogenesis and infection. © The Author(s), under exclusive licence to Springer-Verlag London Ltd., part of Springer Nature 2022. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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Ten and eight molecularly verified T. mentagrophytes isolates obtained from human and bovine dermatophytosis, respectively, were examined for the presence of SUB genes. In two multiplex PCR panels, all T. mentagrophytes strains were examined. The initial multiplex PCR primers detected the presence of SUB1, SUB4, SUB5, and SUB6. The second multiplex PCR panel includes SUB2, SUB3, and SUB7 specific primers. DNA sequencing of the ribosomal internal transcribed spacer (ITS) region has been used to positively identify all T. mentagrophytes isolates (rDNA). All T. mentagrophytes strains tested positive for SUB1, SUB2, SUB4, SUB6, and SUB7. While SUB5 was not found in any of the isolates, SUB3 was present in 90% of human and 100% of animal dermatophytosis samples. The presence of dermatophyte virulence factors, or SUB genes, is indicative of the existence of many dermatophyte species that share a common ancestor. 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