It looks like a joke – a new molecule called intellectin. And there seems to be even a link to allergy

[…] discovered in the epithelial cells of the gastrointestinal tract and are presumed to be important in the host defense against microorganisms such as parasites. Recent discoveries suggest that these glycoproteins may be important in pathogenesis of allergic diseases such as asthma.

Pubmed, however, shows a funny response:

so it remains a tying error, yea, yea.