Skip to main content
An official website of the United States government
Government Funding Lapse
Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted.

The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.

Updates regarding government operating status and resumption of normal operations can be found at opm.gov.

anti-CLL1-PBD ADC DCLL9718S

An antibody-drug conjugate (ADC) consisting of MCLL0517A , an anti-C-type lectin-like molecule-1 (CLL-1; CLL1; C-type lectin domain family 12 member A; CLEC12A) humanized immunoglobulin G1 (IgG1) monoclonal antibody, conjugated, via a cleavable disulfide linker, to two cytotoxic, DNA minor-groove crosslinking agent pyrrolobenzodiazepine (PBD) dimers, with potential antineoplastic activity. Upon administration of anti-CLL1-PBD ADC DCLL9718S, the antibody moiety targets the cell surface tumor-associated antigen (TAA) CLL1. Upon antibody/antigen binding, internalization, and lysosome uptake, the cytotoxic PBD moiety is released. The imine groups of the PBD moiety covalently bind to the N2 positions of guanines on opposite strands in the minor groove of DNA. This induces DNA strand breaks, inhibits DNA replication, leads to G2/M cell cycle arrest, induces cell death, and inhibits the proliferation of CLL1-overexpressing tumor cells. CLL1, a transmembrane glycoprotein and member of the C-type lectin/C-type lectin-like domain (CTL/CTLD) superfamily, is overexpressed in leukemic stem cells (LSCs) while absent on normal hematopoietic stem cells (HSCs). It plays an important role in disease progression and relapse of myeloid malignancies.
Synonym:ADC DCLL9718S
anti-CLL-1 ADC DCLL9718S
anti-CLL1/PBD ADC DCLL9718S
TDC DCLL9718S
THIOMAB ADC DCLL9718S
Code name:DCLL 9718S
DCLL-9718S
DCLL9718S
RG 6109
RG-6109
RG6109
Search NCI's Drug Dictionary