Riley Ennis

Boston wins big in Buffalo biz contest

Oncolinx, a Boston startup that develops cancer immunotherapies known as antibody-drug conjugates, was the $1 million winner in this year’s running of the 43North business plan contest in Buffalo. The contest, which calls itself the richest business plan contest in the world, also awarded $600,000 to a runner-up and $500,000 to six other finalists. One caveat: Winners have to agree to relocate to Buffalo for one year to claim their prize. Oncolinx, which targets cancer cells…