Endosome Regulates Endosomal Acidification Channel NaV1.5 in the Macrophage Late Expression of the Voltage-Gated Sodium

نویسندگان

  • Stephen G. Waxman
  • Michael D. Carrithers
  • Sulayman Dib-Hajj
  • Lisette M. Carrithers
  • Gouzel Tokmoulina
  • Marc Pypaert
  • Elizabeth A. Jonas
چکیده

برای دانلود رایگان 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

Expression of the voltage-gated sodium channel NaV1.5 in the macrophage late endosome regulates endosomal acidification.

Voltage-gated sodium channels expressed on the plasma membrane activate rapidly in response to changes in membrane potential in cells with excitable membranes such as muscle and neurons. Macrophages also require rapid signaling mechanisms as the first line of defense against invasion by microorganisms. In this study, our goal was to examine the role of intracellular voltage-gated sodium channel...

متن کامل

Cardiac sodium channel palmitoylation regulates channel availability and myocyte excitability with implications for arrhythmia generation

Cardiac voltage-gated sodium channels (Nav1.5) play an essential role in regulating cardiac electric activity by initiating and propagating action potentials in the heart. Altered Nav1.5 function is associated with multiple cardiac diseases including long-QT3 and Brugada syndrome. Here, we show that Nav1.5 is subject to palmitoylation, a reversible post-translational lipid modification. Palmito...

متن کامل

The yeast endosomal Na+K+/H+ exchanger Nhx1 regulates cellular pH to control vesicle trafficking.

The relationship between endosomal pH and function is well documented in viral entry, endosomal maturation, receptor recycling, and vesicle targeting within the endocytic pathway. However, specific molecular mechanisms that either sense or regulate luminal pH to mediate these processes have not been identified. Herein we describe the use of novel, compartment-specific pH indicators to demonstra...

متن کامل

Mediation of protection and recovery from experimental autoimmune encephalomyelitis by macrophages expressing the human voltage-gated sodium channel NaV1.5.

Multiple sclerosis (MS) is the most common nontraumatic cause of neurologic disability in young adults. Despite treatment, progressive tissue injury leads to accumulation of disability in many patients. Here, our goal was to develop an immune-mediated strategy to promote tissue repair and clinical recovery in an MS animal model. We previously demonstrated that a variant of the voltage-gated sod...

متن کامل

Protein arginine methyl transferases-3 and -5 increase cell surface expression of cardiac sodium channel.

The α-subunit of the cardiac voltage-gated sodium channel (NaV1.5) plays a central role in cardiomyocyte excitability. We have recently reported that NaV1.5 is post-translationally modified by arginine methylation. Here, we aimed to identify the enzymes that methylate NaV1.5, and to describe the role of arginine methylation on NaV1.5 function. Our results show that protein arginine methyl trans...

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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2007