Innovative Methodology Three-Dimensional Mapping of Unitary Synaptic Connections by Two-Photon Macro Photolysis of Caged Glutamate

نویسندگان

  • Masanori Matsuzaki
  • Graham C. R. Ellis-Davies
  • Haruo Kasai
چکیده

Masanori Matsuzaki, Graham C. R. Ellis-Davies, and Haruo Kasai Division of Biophysics, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, and Center for NanoBio Integration, The University of Tokyo, Tokyo; Precursory Research Organization for Embryonic Science and Technology, Japan Science and Technology Agency, Saitama, Japan; and Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania

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

Three-dimensional mapping of unitary synaptic connections by two-photon macro photolysis of caged glutamate.

To understand the precise microarchitecture of the cortical circuitry, it is crucial to know the distribution of synaptic connections and their synaptic strengths at the level of a single cell, rather than a group of cells. Here, we describe a new application of two-photon photolysis of caged glutamate that enabled us to induce an action potential in only a small number (about five) of pyramida...

متن کامل

Chemical Two-Photon Uncaging: a Novel Approach to Mapping Glutamate Receptors

Functional mapping of neurotransmitter receptors requires rapid and localized application of transmitter. The usefulness of caged glutamate for this purpose has been limited, because photolysis by unfocused light above and below the target cell limits depth resolution. This problem is eliminated by using a double-caged glutamate that requires absorption of two photons for conversion to active g...

متن کامل

Four-dimensional multi-site photolysis of caged neurotransmitters

Neurons receive thousands of synaptic inputs that are distributed in space and time. The systematic study of how neurons process these inputs requires a technique to stimulate multiple yet highly targeted points of interest along the neuron's dendritic tree. Three-dimensional multi-focal patterns produced via holographic projection combined with two-photon photolysis of caged compounds can prov...

متن کامل

Chemical Two-Photon Uncaging: Neurotechnique a Novel Approach to Mapping Glutamate Receptors

tons should produce glutamate in proportion to the Functional mapping of neurotransmitter receptors resquare of the light intensity and do so primarily at the quires rapid and localized application of transmitter. focal plane. We tested this strategy in hippocampal pyThe usefulness of caged glutamate for this purpose ramidal neurons by comparing the performance of a has been limited, because ph...

متن کامل

Brominated 7-hydroxycoumarin-4-ylmethyls: photolabile protecting groups with biologically useful cross-sections for two photon photolysis.

Photochemical release (uncaging) of bioactive messengers with three-dimensional spatial resolution in light-scattering media would be greatly facilitated if the photolysis could be powered by pairs of IR photons rather than the customary single UV photons. The quadratic dependence on light intensity would confine the photolysis to the focus point of the laser, and the longer wavelengths would b...

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 2008