Induction of anti-tumor immunity by human telomerase reverse transcriptase (hTERT) and viral-derived peptides in breast cancer mouse models

Human telomerase reverse transcriptase (hTERT) is the most common tumor-associated antigen (TAA) and its activity is upregulated in more than 90% of cancers. Therefore, its targeting can be used in cancer immunotherapy. In continuing with our previous study, we evaluated hTERT derived peptides conju...

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Main Authors: Fanuel Songwe, Gholam Ali Kardar, Abasalt Hosseinzadeh Colagar, Mehdi Ghorbani, Amir Mohammadi
Other Authors: Department of Biological Sciences, Faculty of Science and Technology Midlands State University Gweru, Zimbabwe
Format: research article
Language:English
Published: Research Square 2023
Subjects:
Online Access:https://cris.library.msu.ac.zw//handle/11408/5646
https://doi.org/10.21203/rs.3.rs-2751351/v1
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author Fanuel Songwe
Gholam Ali Kardar
Abasalt Hosseinzadeh Colagar
Mehdi Ghorbani
Amir Mohammadi
author2 Department of Biological Sciences, Faculty of Science and Technology Midlands State University Gweru, Zimbabwe
author_facet Department of Biological Sciences, Faculty of Science and Technology Midlands State University Gweru, Zimbabwe
Fanuel Songwe
Gholam Ali Kardar
Abasalt Hosseinzadeh Colagar
Mehdi Ghorbani
Amir Mohammadi
author_sort Fanuel Songwe
collection DSpace
description Human telomerase reverse transcriptase (hTERT) is the most common tumor-associated antigen (TAA) and its activity is upregulated in more than 90% of cancers. Therefore, its targeting can be used in cancer immunotherapy. In continuing with our previous study, we evaluated hTERT derived peptides conjugated to KLH in mice breast cancer models. To induce tumors in Balb/C mice, about 5 × 10 5 mice breast cancer 4T1 cell were washed and suspended in 100 µl sterile PBS and subcutaneously (s.c) injected to 4th mammary fat pat of 6–8 weeks old mice. Thereafter, tumor size measurements were taken two times a week. About 100 ug KLH conjugated peptides accompanied by Incomplete Freund′s adjuvant (IFA) were injected s.c on days 10th and 20th after cancer cells inoculation. In spite of their significantly lower immunogenicity and affinities on mice HLA compared to human (approximately 5–30 times), these peptides inhibited tumor growth as well as being able to increase the overall survival of vaccinated Balb/C mice compare untreated group.
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spelling ir-11408-56462023-05-20T12:05:31Z Induction of anti-tumor immunity by human telomerase reverse transcriptase (hTERT) and viral-derived peptides in breast cancer mouse models Fanuel Songwe Gholam Ali Kardar Abasalt Hosseinzadeh Colagar Mehdi Ghorbani Amir Mohammadi Department of Biological Sciences, Faculty of Science and Technology Midlands State University Gweru, Zimbabwe Tehran University of Medical Sciences University of Mazandaran Tehran University of Medical Science University of Mazandaran hTERT MHC Peptide-based vaccine Viral peptide Cancer immunotherapy Human telomerase reverse transcriptase (hTERT) is the most common tumor-associated antigen (TAA) and its activity is upregulated in more than 90% of cancers. Therefore, its targeting can be used in cancer immunotherapy. In continuing with our previous study, we evaluated hTERT derived peptides conjugated to KLH in mice breast cancer models. To induce tumors in Balb/C mice, about 5 × 10 5 mice breast cancer 4T1 cell were washed and suspended in 100 µl sterile PBS and subcutaneously (s.c) injected to 4th mammary fat pat of 6–8 weeks old mice. Thereafter, tumor size measurements were taken two times a week. About 100 ug KLH conjugated peptides accompanied by Incomplete Freund′s adjuvant (IFA) were injected s.c on days 10th and 20th after cancer cells inoculation. In spite of their significantly lower immunogenicity and affinities on mice HLA compared to human (approximately 5–30 times), these peptides inhibited tumor growth as well as being able to increase the overall survival of vaccinated Balb/C mice compare untreated group. 1 17 2023-05-20T12:05:30Z 2023-05-20T12:05:30Z 2023-04-04 research article https://cris.library.msu.ac.zw//handle/11408/5646 https://doi.org/10.21203/rs.3.rs-2751351/v1 en open Research Square
spellingShingle hTERT
MHC
Peptide-based vaccine
Viral peptide
Cancer immunotherapy
Fanuel Songwe
Gholam Ali Kardar
Abasalt Hosseinzadeh Colagar
Mehdi Ghorbani
Amir Mohammadi
Induction of anti-tumor immunity by human telomerase reverse transcriptase (hTERT) and viral-derived peptides in breast cancer mouse models
title Induction of anti-tumor immunity by human telomerase reverse transcriptase (hTERT) and viral-derived peptides in breast cancer mouse models
title_full Induction of anti-tumor immunity by human telomerase reverse transcriptase (hTERT) and viral-derived peptides in breast cancer mouse models
title_fullStr Induction of anti-tumor immunity by human telomerase reverse transcriptase (hTERT) and viral-derived peptides in breast cancer mouse models
title_full_unstemmed Induction of anti-tumor immunity by human telomerase reverse transcriptase (hTERT) and viral-derived peptides in breast cancer mouse models
title_short Induction of anti-tumor immunity by human telomerase reverse transcriptase (hTERT) and viral-derived peptides in breast cancer mouse models
title_sort induction of anti-tumor immunity by human telomerase reverse transcriptase (htert) and viral-derived peptides in breast cancer mouse models
topic hTERT
MHC
Peptide-based vaccine
Viral peptide
Cancer immunotherapy
url https://cris.library.msu.ac.zw//handle/11408/5646
https://doi.org/10.21203/rs.3.rs-2751351/v1
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