Ligand-regulated secretion of recombinant annexin V from cultured thyroid epithelial cells.

نویسندگان

  • Xiuqiong Wang
  • Marcia A Kaetzel
  • Sung E Yoo
  • Paul S Kim
  • John R Dedman
چکیده

The exposure of anionic phospholipids on the external surface of injured endothelial cells and activated platelets is a primary biological signal to initiate blood coagulation. Disease conditions that promote the formation of ectopic thrombi result in tissue ischemia. Annexins, Ca2+-dependent anionic phospholipid binding proteins, are potential therapeutic agents for the inhibition of coagulation. We have designed a transgene that targets secretion of annexin V from cultured thyroid cells under the control of doxycycline. Our results indicate that annexin V in the endoplasmic reticulum (ER)/Golgi lumen does not affect the synthesis, processing, and secretion of thyroglobulin. ER luminal Ca2+ was moderately increased and can be released by inositol 1,4,5-trisphosphate. Our study demonstrates that targeting and secretion of annexin V through the secretory pathway of mammalian cells does not adversely affect cellular function. Regulated synthesis and release of annexin V may exert anticoagulatory and anti-inflammatory effects systemically and may prove useful in further developing therapeutic strategies for conditions including antiphospholipid syndrome.

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 effect of exosomes derived from human ovarian epithelial cancer cells on the secretion of AMH and Inhibin in granulosa cells

Exosomes are secreted by different types of cells and known as biological packages. Exosomes have significant role in intercellular communications and involved in the development and progression of various diseases such as cancer. Inhibin B and anti-mullerian hormone (AMH) are markers of granulosa cell tumors (GCT) and due to the role of exosomes in the progression of cancer, in this experiment...

متن کامل

Evaluation of the Role of Herpes Simplex Virus Type 1 in the Secretion of Interleukin-1β (IL-1β) by Cultured Gingival Epithelial Cells

Background and Aims: Several studies have shown that there is greater number of viruses in deep periodontal pockets than in normal gingival sulcus. We also know that virus may have an important role in induction of Il-1β secretion by different human cells. In this study we intended to determine the capacity of Herpes simplex virus type 1 to stimulate Il-1β secretion in human gingival ...

متن کامل

Antitumor activity of suberoylanilide hydroxamic acid against thyroid cancer cell lines in vitro and in vivo.

PURPOSE The histone deacetylase inhibitor, suberoylanilide hydroxamic acid (SAHA), has multiple antitumor effects against a variety of human cancers. EXPERIMENTAL DESIGN We treated several anaplastic and papillary thyroid cancer cell lines with SAHA to determine if it could inhibit the growth of these cells in vitro and in vivo. RESULTS SAHA effectively inhibited 50% clonal growth of the an...

متن کامل

Chronic Exposure of Human Endothelial Progenitor Cells to Diabetic Condition Abolished the Regulated Kinetics Activity of Exosomes

By virtue of lifestyle change, incidence of type 2 diabetes is increasingly being raised with different up-surging pathologies. This condition found to disqualify endothelial progenitor cells during neo-vascularization. Besides to an aborted differentiation property, malfunctioned paracrine activities exacerbate vascular abnormalities. It is found nano-scaled exosomes play essential roles on re...

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:
  • American journal of physiology. Cell physiology

دوره 282 6  شماره 

صفحات  -

تاریخ انتشار 2002