Cancer Crab

For years we have quested to cure the most tenacious of diseases. Cancer, but in recent years a break threw has been made, one so obvious yet under our noses. The hours shoe crab has a rare blue blood, one that is extremely toxic. it can disrupt the chemicals that trigger cell regeneration. so if used on a cancerous growth, it would stop cancer, & all the other cells in that area, in their tracks. so, is this double edged sword worth perusing?