Tumor suppressive maspin functions as a ROS scavenger: Importance of cysteine residues

نویسندگان

  • Nitin Mahajan
  • Heidi Y Shi
  • Thomas J Lukas
  • Ming Zhang
چکیده

Capsule Background: Maspin is a multifaceted serpin. But the role of intracellular maspin is still not well understood. Results: Our study provides evidence that the structurally exposed cysteine residues in maspin reduce oxidative stress and cellular proliferation. Conclusion: Cysteine thiols in maspin scavenge reactive oxygen species in tumor cells. Significance: These findings elucidate the importance of cysteine residues of maspin in curbing oxidative stress.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The Tumor-Suppressive Role Of Secreted Maspin Via The Exosomes

A TUMOR-SUPPRESSIVE ROLE OF MASPIN SECRETED VIA THE EXOSOMESbyIVORY DEANDecember 2014Advisor: Shijie Sheng, Ph.D. Major: Cancer BiologyDegree: Doctor of PhilosophyThis dissertation highlights several novel findings. Maspin has been consistentlydetected in the conditioned media of maspin-expressing cells of normal and tumorbreast, prostate and lung origin. Fur...

متن کامل

Maspin Expression and its Metastasis Suppressing Function in Prostate Cancer

Mammary Serine Protease Inhibitor (Maspin) is a unique member of the serpin family with tumor suppressive properties. Maspin is a secreted protein encoded by a class II tumor suppressor gene, expressed in normal prostate luminal and basal cells but reduced or absent in prostate cancer. Currently, there is a consensus that maspin expression in prostate cancer is an indicator of a better prognosi...

متن کامل

microRNA-29a functions as a tumor suppressor in nasopharyngeal carcinoma 5-8F cells through targeting VEGF

Objective(s): microRNA-29 (miR-29) family miRNAs have been mentioned as tumor suppressive genes in several human cancers. The purpose of this study was to investigate the function of miR-29a in nasopharyngeal carcinoma (NPC) cells. Materials and Methods: Human NPC cell line 5-8F was transfected with mimic, inhibitor or scrambled controls...

متن کامل

Pleiotrophic inhibition of pericellular urokinase-type plasminogen activator system by endogenous tumor suppressive maspin.

Maspin is a novel serine protease inhibitor with tumor suppressive activity, inhibiting tumor invasion and metastasis. To date, the underlying molecular mechanism of maspin remains elusive. Recombinant maspin has been shown to specifically inhibit cell surface-associated urokinase-type plasminogen activator (uPA) and fibrinogen-bound tissue-type plasminogen activator. However, the role of endog...

متن کامل

Maspin expression inhibits osteolysis, tumor growth, and angiogenesis in a model of prostate cancer bone metastasis.

Emerging evidence indicates that tumor-associated proteolytic remodeling of bone matrix may underlie the capacity of tumor cells to colonize and survive in the bone microenvironment. Of particular importance, urokinase-type plasminogen activator (uPA) has been shown to correlate with human prostate cancer (PC) metastasis. The importance of this protease may be related to its ability to initiate...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2013