novel products in hyaluronan digested by commercially available bovine testicular hyaluronidase are found which originate from a novel enzyme contaminat in the BTH
as major hyaluronidases in human cells, HYAL1 and HYAL2 may control intercellular interactions and microenvironment of tumour cells providing excellent targets for cancer treatment
human cancers grown in SCID mice regress dramatically following administration of purified testicular hyaluronidase. Hyaluronidase treatment also prevents lymph node invasion in a murine model for T-cell lymphoma
hyaluronidase correlates with tumor progression which is documented in tumors of the male genito-urinary tract, in prostate and urinary bladder cancers. Aggressiveness of other human cancers also correlates with hyaluronidase, including breast and laryngeal cancer
hyaluronidases are added to anticancer regimens, particularly in Europe. Tumors previously resistant to chemotherapy become sensitive when hyaluronidase is added. The enzyme may decrease intratumoral pressure, permitting drugs to penetrate the malignancy. Studies are available suggesting that hyaluronidase has intrinsic anti-tumor activity
it is assessed whether hyaluronic acid and HYAL-1 can predict progression to muscle invasion and recurrence among patients with non-muscle-invasive bladder carcinoma. In a cohort of 178 bladder carcinoma specimens HA and HYAL-1 expression is evaluated by immunohistochemistry and graded for intensity and area of staining. Association of HA and HYAL-1 staining with bladder carcinoma recurrence and muscle invasion is evaluated by univariate and multivariate models. HYAL-1 is a potential prognostic marker for predicting progression to muscle invasion and recurrence
the codelivery of hyaluronidase enzyme with oncolytic adenoviruses is analysed to determine whether it improves the spread of the virus throughout tumors, thereby leading to a greater overall antitumor efficacy in tumor models: In mice injected with the adenovirus Ad5/35GFP and hyaluronidase (50 U), a significant increase in the number of GFP-expressing cells is observed when compared with animals injected with virus only. When the oncolytic adenoviruses Ad5OV or Ad5/35 OV are codelivered with 50 U of hyaluronidase, a significant delay in tumor progression is observed, which translates into a significant increase in the mean survival time of tumor-bearing mice compared with either of the monotherapy-treated groups. Furthermore, the mice that receive the combination of Ad5/35 OV and hyaluronidase show the best antitumor efficacy
the effect of anticoagulants on plasma HAase activity is evaluated and compared with the serum HAase activity that is devoid of anticoagulants. The plasma HAase activity in the presence of the recommended concentration of EDTA is highly comparable to that of the serum HAase activity. In contrast, citrated or heparinized plasma record a significantly reduced level of activity than that of the serum HAase activity. EDTA-treated plasma samples are a better choice compared with heparin and citrated samples to assess the HAase activity
hyaluronidase 1 is a prognostic indicator for both local recurrence and progression of non-muscle-invasive bladder cancer after transurethral resection
hyaluronidase improves pharmacokinetic profiles of HI-6 dichloride and HI-6 dimethansulfonate. Hyaluronidase is supposed to increase tissue permeability and diminishes discomfort caused by the intramuscular injection
bovine hyaluronidase is an adjuvant for infiltration anesthesia. By degrading hyaluronan in the extracellular matrix, hyaluronidase increases membrane permeability, thereby rendering tissues more permeable to injected fluids. As a consequence, hyaluronidase reduces viscosity of hyaluronan which improves tissue diffusion and the resorption rate of excess fluids. Co-administration of hyaluronidase is a potential option to enhance the effectiveness of local anesthesia, increasing the analgesic efficacy with respect to the anesthetized area per time (e.g., subcutaneous and intramuscular injections). Hyaluronidase is used in ophthalmic surgery in combination with local anesthetics for peritubular, retrotubular or sub-Tenon's anesthesia and is established in other surgical disciplines, including dermatosurgery. Injection of hyaluronidase-based fillers in aesthetic dermatology