Biomaterial Database

Time-dependent expression of Na and Ca channels in PC12 cells by nerve growth factor and cAMP. 1993

K Furukawa, and H Onodera, and K Kogure, and N Akaike

Department of Neurophysiology, Tohoku University School of Medicine, Sendai, Japan.

Changes in voltage-dependent Na+ (INa) and Ca2+ currents (ICa) were investigated in PC12 cells cultured without or with either nerve growth factor (NGF) or 8-Br-cAMP for 10 days. Current recordings were made in the whole-cell mode by using the conventional patch-clamp technique under voltage-clamp conditions. Membrane capacitance, an indicator of the total cell surface area, was increased 3- and 1.5-fold by 10-day treatment with NGF and 8-Br-cAMP, respectively. At the same time, NGF increased the current density of both INa and ICa approximately 25 and 2.5 times greater than in their respective controls. 8-Br-cAMP also increased both current densities; the effect on the INa was one-third less than that of NGF, while the effect on the ICa was similar to that of NGF. It was concluded that NGF has strong and moderate effects, respectively, on the expression of voltage-dependent Na+ and Ca2+ channels. 8-Br-cAMP mimicked the effect of NGF especially in Ca2+ channel expression.

UI	MeSH Term	Description	Entries
D009414	Nerve Growth Factors	Factors which enhance the growth potentialities of sensory and sympathetic nerve cells.	Neurite Outgrowth Factor,Neurite Outgrowth Factors,Neuronal Growth-Associated Protein,Neuronotrophic Factor,Neurotrophic Factor,Neurotrophic Factors,Neurotrophin,Neurotrophins,Growth-Associated Proteins, Neuronal,Neuronal Growth-Associated Proteins,Neuronotrophic Factors,Neurotrophic Protein,Neurotrophic Proteins,Proteins, Neuronal Growth-Associated,Factor, Neurite Outgrowth,Factor, Neuronotrophic,Factor, Neurotrophic,Factors, Nerve Growth,Factors, Neurite Outgrowth,Factors, Neuronotrophic,Factors, Neurotrophic,Growth Associated Proteins, Neuronal,Growth-Associated Protein, Neuronal,Neuronal Growth Associated Protein,Neuronal Growth Associated Proteins,Outgrowth Factor, Neurite,Outgrowth Factors, Neurite,Protein, Neuronal Growth-Associated
D004594	Electrophysiology	The study of the generation and behavior of electrical charges in living organisms particularly the nervous system and the effects of electricity on living organisms.
D000242	Cyclic AMP	An adenine nucleotide containing one phosphate group which is esterified to both the 3'- and 5'-positions of the sugar moiety. It is a second messenger and a key intracellular regulator, functioning as a mediator of activity for a number of hormones, including epinephrine, glucagon, and ACTH.	Adenosine Cyclic 3',5'-Monophosphate,Adenosine Cyclic 3,5 Monophosphate,Adenosine Cyclic Monophosphate,Adenosine Cyclic-3',5'-Monophosphate,Cyclic AMP, (R)-Isomer,Cyclic AMP, Disodium Salt,Cyclic AMP, Monoammonium Salt,Cyclic AMP, Monopotassium Salt,Cyclic AMP, Monosodium Salt,Cyclic AMP, Sodium Salt,3',5'-Monophosphate, Adenosine Cyclic,AMP, Cyclic,Adenosine Cyclic 3',5' Monophosphate,Cyclic 3',5'-Monophosphate, Adenosine,Cyclic Monophosphate, Adenosine,Cyclic-3',5'-Monophosphate, Adenosine,Monophosphate, Adenosine Cyclic
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D013997	Time Factors	Elements of limited time intervals, contributing to particular results or situations.	Time Series,Factor, Time,Time Factor
D015124	8-Bromo Cyclic Adenosine Monophosphate	A long-acting derivative of cyclic AMP. It is an activator of cyclic AMP-dependent protein kinase, but resistant to degradation by cyclic AMP phosphodiesterase.	8-Bromo-cAMP,8-Br Cyclic AMP,8-Bromo Cyclic AMP,8-Bromo Cyclic Adenosine Monophosphate, Monosodium Salt,8-Bromo Cyclic Adenosine Monophosphate, Sodium Salt,8-Bromoadenosine 3',5'-Cyclic Monophosphate,Br Cycl AMP,8 Br Cyclic AMP,8 Bromo Cyclic AMP,8 Bromo Cyclic Adenosine Monophosphate,8 Bromo Cyclic Adenosine Monophosphate, Monosodium Salt,8 Bromo Cyclic Adenosine Monophosphate, Sodium Salt,8 Bromo cAMP,8 Bromoadenosine 3',5' Cyclic Monophosphate,AMP, Br Cycl,Cyclic AMP, 8-Br,Cyclic AMP, 8-Bromo
D015220	Calcium Channels	Voltage-dependent cell membrane glycoproteins selectively permeable to calcium ions. They are categorized as L-, T-, N-, P-, Q-, and R-types based on the activation and inactivation kinetics, ion specificity, and sensitivity to drugs and toxins. The L- and T-types are present throughout the cardiovascular and central nervous systems and the N-, P-, Q-, & R-types are located in neuronal tissue.	Ion Channels, Calcium,Receptors, Calcium Channel Blocker,Voltage-Dependent Calcium Channel,Calcium Channel,Calcium Channel Antagonist Receptor,Calcium Channel Antagonist Receptors,Calcium Channel Blocker Receptor,Calcium Channel Blocker Receptors,Ion Channel, Calcium,Receptors, Calcium Channel Antagonist,VDCC,Voltage-Dependent Calcium Channels,Calcium Channel, Voltage-Dependent,Calcium Channels, Voltage-Dependent,Calcium Ion Channel,Calcium Ion Channels,Channel, Voltage-Dependent Calcium,Channels, Voltage-Dependent Calcium,Voltage Dependent Calcium Channel,Voltage Dependent Calcium Channels
D015222	Sodium Channels	Ion channels that specifically allow the passage of SODIUM ions. A variety of specific sodium channel subtypes are involved in serving specialized functions such as neuronal signaling, CARDIAC MUSCLE contraction, and KIDNEY function.	Ion Channels, Sodium,Ion Channel, Sodium,Sodium Channel,Sodium Ion Channels,Channel, Sodium,Channel, Sodium Ion,Channels, Sodium,Channels, Sodium Ion,Sodium Ion Channel
D016716	PC12 Cells	A CELL LINE derived from a PHEOCHROMOCYTOMA of the rat ADRENAL MEDULLA. PC12 cells stop dividing and undergo terminal differentiation when treated with NERVE GROWTH FACTOR, making the line a useful model system for NERVE CELL differentiation.	Pheochromocytoma Cell Line,Cell Line, Pheochromocytoma,Cell Lines, Pheochromocytoma,PC12 Cell,Pheochromocytoma Cell Lines