C1QBP and neoplasm: Long back, Gupta and Datta (1991) [10] and Deb and Datta (1996) [22] have shown that HABP1 (then referred to as hyaluronectin) interacts with HA and plays a major role in tumor cell adhesion and its secretory nature has been established on its detection in the serum free medium of macrophage tumor cell line.