The present disclosure provides various linker units and molecular constructs, each of which has a targeting element and an effector element linked therewith. Methods for treating various diseases using such linker units and molecular constructs are also disclosed.本揭示內容提出多種接合單元與分子構建體,其分別具有與其連接的標的元件與效應元件。亦揭示使用此種接合單元與分子構建體來治療各種疾病之用途。