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PXD042971

PXD042971 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleHighly selective humanized DDR1 mAb reverses immune exclusion by disrupting collagen fiber alignment in breast cancer
DescriptionDiscoidin domain-containing receptor 1 (DDR1) plays an important role in cancer progression. However, the DDR1 function in tumors is still elusive. We recently reported that DDR1 promoted collagen fiber alignment and formation of a physical barrier, which causes immune exclusion from tumors. We also demonstrated that our DDR1 ECD-targeting mAbs can disrupt collagen fiber alignment and increase T Cell infiltration in tumors. In this study, we humanized a DDR1 ECD-targeting mAb and showed significant antitumor efficacy in an immunocompetent mouse model. We determined the binding epitope using gene mutagenesis, hydrogen-deuterium exchange mass spectrometry (HDX-MS), and X-ray crystallography. Mechanistically, we showed that the humanized mAb inhibited DDR1 phosphorylation and, more importantly, blocked DDR1 shedding and disrupted a physical barrier formed by collagen fiber alignment in tumors. This study not only paves a pathway for development of PRTH-101 as a cancer therapeutic, but also broaden our understanding of the roles of DDR1 in modulation of collagen alignments in tumor extracellular matrix and tumor immune microenvironment.
HostingRepositoryPRIDE
AnnounceDate2024-10-22
AnnouncementXMLSubmission_2024-10-22_05:48:31.132.xml
DigitalObjectIdentifier
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterJasmin Dülfer
SpeciesList scientific name: Homo sapiens (Human); NCBI TaxID: 9606;
ModificationListcomplex glycosylation
InstrumentLTQ Orbitrap Velos
Dataset History
RevisionDatetimeStatusChangeLog Entry
02023-06-14 01:11:55ID requested
12023-06-19 01:03:07announced
22023-11-14 06:43:32announced2023-11-14: Updated project metadata.
32024-10-22 05:48:31announced2024-10-22: Updated project metadata.
Publication List
10.1136/JITC-2023-006720;
Keyword List
submitter keyword: DDR1, breast cancer, PRTH-101, HDX-MS, mAb
Contact List
Dr Zhiqiang An
contact affiliationTexas Therapeutics Institute, Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
contact emailZhiqiang.An@uth.tmc.edu
lab head
Jasmin Dülfer
contact affiliationEvotec SE
contact emailjasmin.duelfer@evotec.com
dataset submitter
Full Dataset Link List
Dataset FTP location
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PRIDE project URI
Repository Record List
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