Chemical Mutagenesis | Chemical mutagenesis: a powerful tool for the creation of a library of nanobodies

Summary
Finding a non-aggressive treatment against Cancer is one of the most important challenges that medicine has nowadays. Immunotherapy has emerged as one of the best options to overcome the current problems of chemotherapy. By the use of monoclonal antibodies (mAb), immunotherapy is able to block regulatory checkpoints and, therefore, the immune response against tumoral cells could be modulated.
Trastuzumab, pembrolizumab and nivolumab are some of the mAb approved by the Food and Drug Administration (FDA) for their use against several cancers. Trastuzumab recognizes the overexpressed protein HER2 in breast cancer, whereas the pembrolizumab and the nivolumab recognize the Programmed Cell Death-1 (PD-1) receptor and are used in several cancers such as refractory melanoma.
However, there are reported important issues concerning cancer resistance to these mAb, thus, modifying their characteristics became necessary. Unlike it happens with small molecules, there are several limitations to functionalize an antibody to improve its characteristics. In this context, chemical mutagenesis turns into a powerful tool because it allows the modification of an antibody directly with highly specific chemical reactions, and achieve changes onto its structure that would not be possible by using other techniques such as protein engineering and genetic encoding.
In this proposal I envision the use of nanobodies able to recognize HER-2 protein and PD-1 receptor in order to improve their affinity to their targets by chemical mutagenesis via alanyl radical. The success of this project would provide solutions to the cancer resistance to current immunotherapy.
Unfold all
/
Fold all
More information & hyperlinks
Web resources: https://cordis.europa.eu/project/id/101023887
Start date: 01-03-2022
End date: 29-02-2024
Total budget - Public funding: 212 933,76 Euro - 212 933,00 Euro
Cordis data

Original description

Finding a non-aggressive treatment against Cancer is one of the most important challenges that medicine has nowadays. Immunotherapy has emerged as one of the best options to overcome the current problems of chemotherapy. By the use of monoclonal antibodies (mAb), immunotherapy is able to block regulatory checkpoints and, therefore, the immune response against tumoral cells could be modulated.
Trastuzumab, pembrolizumab and nivolumab are some of the mAb approved by the Food and Drug Administration (FDA) for their use against several cancers. Trastuzumab recognizes the overexpressed protein HER2 in breast cancer, whereas the pembrolizumab and the nivolumab recognize the Programmed Cell Death-1 (PD-1) receptor and are used in several cancers such as refractory melanoma.
However, there are reported important issues concerning cancer resistance to these mAb, thus, modifying their characteristics became necessary. Unlike it happens with small molecules, there are several limitations to functionalize an antibody to improve its characteristics. In this context, chemical mutagenesis turns into a powerful tool because it allows the modification of an antibody directly with highly specific chemical reactions, and achieve changes onto its structure that would not be possible by using other techniques such as protein engineering and genetic encoding.
In this proposal I envision the use of nanobodies able to recognize HER-2 protein and PD-1 receptor in order to improve their affinity to their targets by chemical mutagenesis via alanyl radical. The success of this project would provide solutions to the cancer resistance to current immunotherapy.

Status

CLOSED

Call topic

MSCA-IF-2020

Update Date

28-04-2024
Geographical location(s)
Structured mapping
Unfold all
/
Fold all
EU-Programme-Call
Horizon 2020
H2020-EU.1. EXCELLENT SCIENCE
H2020-EU.1.3. EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions (MSCA)
H2020-EU.1.3.2. Nurturing excellence by means of cross-border and cross-sector mobility
H2020-MSCA-IF-2020
MSCA-IF-2020 Individual Fellowships