Overexpression of hyaluronan-binding protein 1 promotes the proliferation, migration, and invasion of malignant glioma.

BACKGROUND

Hyaluronan binding protein 1 (HABP1) is a member of the hyaladherin family and is involved in T cell activation. It is a high-grade polysaccharide. The CD44 family is also a member of this family. It is expressed in many tumor cells at higher levels than the corresponding normal tissues. It is related to the occurrence and development of tumor cells, invasiveness, and lymph node metastasis. However, the mechanism of HABP1 in glioma remains unclear.

METHODS

We focused on the proliferation and invasion of HABP1 in gliomas. The expression of HABP1 was firstly investigated by immunohistochemical staining and by comparing different grades of glioma tissues from 80 patients with glioma. Then, the influence of migration and proliferation through different human glioma cell line models were investigated.

RESULTS

By collecting a large number of clinical pathological tissues and patient data, it was found that HABP1 expression was significantly correlated with glioma, and gels with a high expression of HABP1 and a low expression of HABP1 were screened by different glioma cell lines. In the cytomorphological analysis, short interfering RNA with HABP1 significantly inhibited the proliferation of glioma, and the overexpression of HABP1 enhanced glioma invasion and migration.

CONCLUSIONS

HABP1 is likely to become a new targeting factor for the treatment of glioma. The mechanism of action of HABP1 in glioma remains to be further studied.