Exploiting Radiation Induction of Antigens in Cancer: Targeted Drug Delivery

Therapeutic antibodies used to treat cancer are effective in patients with advanced-stage disease. For example, antibodies that activate T-lymphocytes improve survival in many cancer subtypes. In addition, antibody–drug conjugates effectively target cytotoxic agents that are specific to cancer. This...

Full description

Bibliographic Details
Main Authors: Vaishali Kapoor, Abhay K. Singh, Calvin D. Lewis, Sapna Deore, Dennis E. Hallahan
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/23/6/3041
_version_ 1797471029759574016
author Vaishali Kapoor
Abhay K. Singh
Calvin D. Lewis
Sapna Deore
Dennis E. Hallahan
author_facet Vaishali Kapoor
Abhay K. Singh
Calvin D. Lewis
Sapna Deore
Dennis E. Hallahan
author_sort Vaishali Kapoor
collection DOAJ
description Therapeutic antibodies used to treat cancer are effective in patients with advanced-stage disease. For example, antibodies that activate T-lymphocytes improve survival in many cancer subtypes. In addition, antibody–drug conjugates effectively target cytotoxic agents that are specific to cancer. This review discusses radiation-inducible antigens, which are stress-regulated proteins that are over-expressed in cancer. These inducible cell surface proteins become accessible to antibody binding during the cellular response to genotoxic stress. The lead antigens are induced in all histologic subtypes and nearly all advanced-stage cancers, but show little to no expression in normal tissues. Inducible antigens are exploited by using therapeutic antibodies that bind specifically to these stress-regulated proteins. Antibodies that bind to the inducible antigens GRP78 and TIP1 enhance the efficacy of radiotherapy in preclinical cancer models. The conjugation of cytotoxic drugs to the antibodies further improves cancer response. This review focuses on the use of radiotherapy to control the cancer-specific binding of therapeutic antibodies and antibody–drug conjugates.
first_indexed 2024-03-09T19:43:46Z
format Article
id doaj.art-cbfb9000dee54fd8b22bbdacff243462
institution Directory Open Access Journal
issn 1661-6596
1422-0067
language English
last_indexed 2024-03-09T19:43:46Z
publishDate 2022-03-01
publisher MDPI AG
record_format Article
series International Journal of Molecular Sciences
spelling doaj.art-cbfb9000dee54fd8b22bbdacff2434622023-11-24T01:31:03ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672022-03-01236304110.3390/ijms23063041Exploiting Radiation Induction of Antigens in Cancer: Targeted Drug DeliveryVaishali Kapoor0Abhay K. Singh1Calvin D. Lewis2Sapna Deore3Dennis E. Hallahan4Department of Radiation Oncology, Washington University School of Medicine in St. Louis, St. Louis, MO 63108, USADepartment of Radiation Oncology, Washington University School of Medicine in St. Louis, St. Louis, MO 63108, USADepartment of Radiation Oncology, Washington University School of Medicine in St. Louis, St. Louis, MO 63108, USAMedical Guidance Systems LLC, St. Louis, MO 63110, USADepartment of Radiation Oncology, Washington University School of Medicine in St. Louis, St. Louis, MO 63108, USATherapeutic antibodies used to treat cancer are effective in patients with advanced-stage disease. For example, antibodies that activate T-lymphocytes improve survival in many cancer subtypes. In addition, antibody–drug conjugates effectively target cytotoxic agents that are specific to cancer. This review discusses radiation-inducible antigens, which are stress-regulated proteins that are over-expressed in cancer. These inducible cell surface proteins become accessible to antibody binding during the cellular response to genotoxic stress. The lead antigens are induced in all histologic subtypes and nearly all advanced-stage cancers, but show little to no expression in normal tissues. Inducible antigens are exploited by using therapeutic antibodies that bind specifically to these stress-regulated proteins. Antibodies that bind to the inducible antigens GRP78 and TIP1 enhance the efficacy of radiotherapy in preclinical cancer models. The conjugation of cytotoxic drugs to the antibodies further improves cancer response. This review focuses on the use of radiotherapy to control the cancer-specific binding of therapeutic antibodies and antibody–drug conjugates.https://www.mdpi.com/1422-0067/23/6/3041antibody–drug conjugateradiation therapytherapeutic targetradiation-inducible
spellingShingle Vaishali Kapoor
Abhay K. Singh
Calvin D. Lewis
Sapna Deore
Dennis E. Hallahan
Exploiting Radiation Induction of Antigens in Cancer: Targeted Drug Delivery
International Journal of Molecular Sciences
antibody–drug conjugate
radiation therapy
therapeutic target
radiation-inducible
title Exploiting Radiation Induction of Antigens in Cancer: Targeted Drug Delivery
title_full Exploiting Radiation Induction of Antigens in Cancer: Targeted Drug Delivery
title_fullStr Exploiting Radiation Induction of Antigens in Cancer: Targeted Drug Delivery
title_full_unstemmed Exploiting Radiation Induction of Antigens in Cancer: Targeted Drug Delivery
title_short Exploiting Radiation Induction of Antigens in Cancer: Targeted Drug Delivery
title_sort exploiting radiation induction of antigens in cancer targeted drug delivery
topic antibody–drug conjugate
radiation therapy
therapeutic target
radiation-inducible
url https://www.mdpi.com/1422-0067/23/6/3041
work_keys_str_mv AT vaishalikapoor exploitingradiationinductionofantigensincancertargeteddrugdelivery
AT abhayksingh exploitingradiationinductionofantigensincancertargeteddrugdelivery
AT calvindlewis exploitingradiationinductionofantigensincancertargeteddrugdelivery
AT sapnadeore exploitingradiationinductionofantigensincancertargeteddrugdelivery
AT dennisehallahan exploitingradiationinductionofantigensincancertargeteddrugdelivery