Multivalent Sgc8c-aptamer decorated polymer scaffolds for leukemia targeting

Area of Science:

• Biomedical Engineering
• Cancer Biology
• Drug Discovery

Background:

• T-cell acute lymphoblastic leukemia (T-ALL) is characterized by excessive immature white blood cells.
• Conventional chemotherapy for T-ALL presents significant adverse effects.
• There is a need for more targeted and effective therapeutic strategies.

Purpose of the Study:

• To investigate aptamer-conjugated polymers as a novel therapeutic approach for T-ALL.
• To evaluate the anti-proliferative effects of these novel constructs on leukemia cells.

Main Methods:

• Polyisocyanopeptide scaffolds were synthesized and functionalized.
• The leukemia cell-binding aptamer, sgc8c, was conjugated to the polymer scaffolds.
• The anti-proliferative activity of the decorated polymers was assessed using cell-based assays.

Main Results:

• The aptamer-decorated polyisocyanopeptides selectively bind to leukemia cells.
• The polymers effectively inhibit leukemia cell proliferation.
• Cell cycle analysis revealed that the polymers induce G0/G1-phase arrest in leukemia cells.

Conclusions:

• Aptamer-conjugated polyisocyanopeptides represent a promising targeted therapy for T-ALL.
• This strategy offers a potential alternative to chemotherapy with reduced side effects.
• Further research into these polymer-aptamer conjugates could lead to new therapeutic avenues for leukemia treatment.