Name: use of phluorin to assess the dynamics of axon guidance receptors in cell culture and in the chick embryo
Uploaded: 2014-01-12T14:00:00
Description: Watch this Scientific Journal Video about Use of pHluorin to Assess the Dynamics of Axon Guidance Receptors in Cell Culture and in the Chick Embryo at JoVE.com

호미라 나와비, 프레드릭 모트, 이자벨 산야스의 도움에 감사드립니다. 이 작품은 CNRS에 의해 지원됩니다, 협회 프랑카이스 contre 레 Myopathies (AFM), ANR YADDLE, 라벡데베칸, 라벡스 피질, V.C.; C.D-B와 A.J는 라 리그 콘트레 르 암과 라벡스 DevWeCan 펠로우십에 의해 각각 지원됩니다.

1. pHluorin와 플렉스A1 수용체를 태그하는 복제 전략
<ol><li>백본으로서 적절한 발현 벡터를 선택한다(예를들어 마우스 수용체 plexinA1 발현 벡터, 안드레아스 푸스헬 박사의 종류 선물11). 참고: 이 플렉스A1 벡터는 플라즈마 멤브레인에서 효율적인 HA-또는 VSV 태그 수용체 삽입을 달성하기 위해 설계되었습니다.</li>
	<li>PCR에 의해 증폭되는 이클립성 pHluorin 코딩 서열은 적절한 플라스?...

<ol>
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이 프로토콜은 세포 배양과 병아리 배아 척수의 발달 맥락에서 축축한 유도 수용체의 역학을 따르는 단계별 절차를 제공합니다.
드 노보 pHluorin 태그 단백질을 설계하려면 복제 전략에 관한 두 점을 고려해야합니다. 먼저, pHluorin 태그는 산성 내종의 루멘에 노출되어야하며, 결과적으로 혈장 막 수용체 풀을 시각화하기 위해 세포외 구획에 노출되어야 한다. 따라서, 수?...

탐색 하는 동안 축 하 그들의 대상을 향해 그들을 안내 하는 여러 환경 단서를 통합. 이러한 단서는 축축단 단자 표면의 안내 수용체를 활성화, 성장 콘, 차례로 적절한 신호 경로를 시작합니다. 따라서, 수용체의 세포 표면 분포의 시간적 및 공간 조절은 성장 원뿔1의감도를 설정하는 데 중요하다. 이러한 맥락에서, 상생축축에 의한 중간선 횡단은 수용체 세포 표면 수준의 조절을 조사하는 우수한 모델이다. 개발 척수에서, commissural 축축은 처음에 그들이 중간라인을 건너 복부 바닥 플레이트쪽으로 끌리고 있습니다. 횡단 후, 그들은 바닥 플레이트 매력에 대한 응답성을 잃고 바닥 판 기피제에 대한 반응을 얻어 서 바닥 판을 빠져 나와 신경계2,3의단점 면에서 최종 목적지로 이동할 수 있습니다. 성장 콘 표면에서 수용체 가용성의 조절은 미드 라인 큐4,5에응답의 전환의 기초 메커니즘 중 하나입니다. 따라서, 성장 콘의 혈장 막에 존재하는 수용체의 선택적 모니터링은 매우 중요하다. 당사는 개발 중인 병아리 척수에서 시험관 내 및 생체 내 혈장 막에 해결되는 축축 유도 수용체를 구체적으로 시각화하기 위해 녹색 형광 단백질(GFP) 변이체의 pH 의존형 형광 성질을기반으로 하는 방법을 설명한다.
로스만 과 동료는 일식 pHluorin6을포함하여 GFP의 포인트 돌연변이 pH 민감 변이체에 의해 설계되었다. 이클립성 pHluorin은 산성 pH (<6)에 노출될 때 불형성인 성질을 가지며, 중성 pH에서 형광이 되는 동안. 이를 통해 세포내 산성구획(즉, 내성, 인신매매 소포)에서 국소화된 비형성 수용체를 혈장 막에 통합하여 세포외 중립 pH7에노출된 형광 수용체로부터 구별할 수 있다. 이를 통해 미들라인 충충제 세마포린 3B5(도 1A)에 대한 성장 콘 반응을 중재하는 축삭 유도 수용체인 plexinA1의 플라즈마 막 국소화를 모니터링하였다. 우리는 여기에 pHluorin-plexinA1 구조의 체외 특성화를 설명, 개발 병아리 척수에서이 구조의 오보 전기화8-10에 다음 공간 및 측두해상도 모두 생체 내에서 축삭 유도 수용체 역학을 따를 수 있도록 극저온 섹션의 현미경 분석.

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	</colgroup>
	<tbody>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">COS7 cells</td>
			<td style="width:147px;">ATCC</td>
			<td style="width:219px;">CRL-1651</td>
			<td style="width:379px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">DMEM GlutaMAX</td>
			<td style="width:147px;">GIBCO</td>
			<td style="width:219px;">61965-026</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Sodium pyruvate</td>
			<td style="width:147px;">GIBCO</td>
			<td style="width:219px;">11360-039</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Amphotericin B</td>
			<td style="width:147px;">Sigma</td>
			<td style="width:219px;">A2942</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Fetal bovine serum</td>
			<td style="width:147px;">GIBCO</td>
			<td style="width:219px;">10270-106</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Penicillin/Streptomycin</td>
			<td style="width:147px;">GIBCO</td>
			<td style="width:219px;">15140-122</td>
			<td></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:264px;">Exgen500 reagent</td>
			<td style="width:147px;">Euromedex Fermentas</td>
			<td style="width:219px;">ET0250</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">PBS -Ca2+ -Mg2+</td>
			<td style="width:147px;">GIBCO</td>
			<td style="width:219px;">14190-094</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Fast green dye</td>
			<td style="width:147px;">Sigma</td>
			<td style="width:219px;">F7252</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:264px;">32% Paraformaldehyde aqueous solution</td>
			<td style="width:147px;">Electron Microscopy</td>
			<td style="width:219px;">15714-S</td>
			<td>Dilute extemporaneously in PBS to achieve a 4% solution</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Gelatin from cold water fish skin</td>
			<td style="width:147px;">Sigma</td>
			<td style="width:219px;">G7041</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Sucrose</td>
			<td style="width:147px;">Sigma</td>
			<td style="width:219px;">S0389</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Cryomount</td>
			<td style="width:147px;">Histolab</td>
			<td style="width:219px;">00890</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Hoechst 34580</td>
			<td style="width:147px;">Invitrogen</td>
			<td style="width:219px;">H21486</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Mowiol 4-88</td>
			<td style="width:147px;">Fluka</td>
			<td style="width:219px;">81381</td>
			<td></td>
		</tr>
		<tr height="21">
			<td colspan="4" height="21" style="height:21px;width:1008px;">Consumables</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Bottom-glass 35 mm dish</td>
			<td style="width:147px;">MatTek</td>
			<td style="width:219px;">P35G-1.5-14-C</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">5 ml Syringe</td>
			<td style="width:147px;">Terumo</td>
			<td style="width:219px;">SS-05S</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Needles 0.9 mm x 25 mm</td>
			<td style="width:147px;">Terumo</td>
			<td style="width:219px;">NN-2025R</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Capillaries</td>
			<td style="width:147px;">CML</td>
			<td style="width:219px;">PP230PO</td>
			<td>capillaries are stretched manually in the flame</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Superfrost Plus Slides</td>
			<td style="width:147px;">Thermo Scientific</td>
			<td>4951PLUS</td>
			<td></td>
		</tr>
		<tr height="21">
			<td colspan="4" height="21" style="height:21px;width:1008px;">Material</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Curved scissors</td>
			<td style="width:147px;">FST</td>
			<td style="width:219px;">129-10</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Microscalpel</td>
			<td style="width:147px;">FST</td>
			<td style="width:219px;">10316-14</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Forceps</td>
			<td style="width:147px;">FST</td>
			<td style="width:219px;">Dumont #5 REF#11254</td>
			<td></td>
		</tr>
		<tr height="21">
			<td colspan="4" height="21" style="height:21px;width:1008px;">Equipment/software</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Time lapse microscope</td>
			<td style="width:147px;">Zeiss</td>
			<td style="width:219px;">Observer 1</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:264px;">Temp module S</td>
			<td style="width:147px;">PECON for Zeiss</td>
			<td style="width:219px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">CO2 module S</td>
			<td style="width:147px;">PECON for Zeiss</td>
			<td style="width:219px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Metamorph software</td>
			<td style="width:147px;">Metamorph</td>
			<td style="width:219px;"></td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:264px;">Eggs incubator</td>
			<td style="width:147px;">Sanyo</td>
			<td style="width:219px;">MIR154</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Electroporator apparatus</td>
			<td style="width:147px;">Nepa Gene CO., LTD</td>
			<td style="width:219px;">CUY21</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Electrodes</td>
			<td style="width:147px;">Nepa Gene CO., LTD</td>
			<td style="width:219px;">CUY611P7-4</td>
			<td>4 mm platinum electrodes</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Fluorescence stereomicroscope</td>
			<td style="width:147px;">LEICA</td>
			<td style="width:219px;">MZ10F</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Cryostat</td>
			<td style="width:147px;">MICROM</td>
			<td style="width:219px;">HM550</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Confocal microscope</td>
			<td style="width:147px;">Olympus</td>
			<td style="width:219px;">FV1000, X81</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:264px;">Fluoview software</td>
			<td style="width:147px;">Olympus</td>
			<td style="width:219px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">CLC Main Workbench software</td>
			<td style="width:147px;">CLC Bio</td>
			<td style="width:219px;"></td>
			<td></td>
		</tr>
	</tbody>
</table>

use of phluorin to assess the dynamics of axon guidance receptors in cell culture and in the chick embryo

개발 하는 동안, 축 하 안내 수용 체 매력적이 고 반발 단서 모두에 축 슨 감도 조절에 중요 한 역할을. 실제로, 유도 수용체의 활성화는 축축기 팁, 성장 콘, 리간드에 반응하는 신호 메커니즘의 첫 번째 단계이다. 따라서 셀 표면에서의 가용성을 조절하는 것은 성장 원뿔 감도 설정에 참여하는 메커니즘 중 하나입니다. 우리는 여기에서 개발 중인 병아리 척수에서 체외 및 생체 내 모두에서 축소 유도 수용체의 현세세포 표면 역학을 정확하게 시각화하는 방법을 설명합니다. 우리는 플라즈마 막에 해결되는 축축물 유도 수용체의 분획을 구체적으로 검출하기 위해 녹색 형광 단백질 (GFP) 변이체의 pH 의존형 형광 특성을 이용했습니다. 우리는 먼저 이러한 pH 의존 구조의 체외 검증을 설명하고 우리는 더 관심축산축산구체의 스페티오 -측두동역학을 평가하기 위해, 병아리 척추 화음에서 생체 내에서의사용을 자세히 설명합니다.

<img alt="Figure 1" fo:content-width="5in" fo:src="/files/ftp_upload/50883/50883fig1highres.jpg" src="/files/ftp_upload/50883/50883fig1.jpg"> 그림 1. A. 세포 컨텍스트에서 pHluorin-plexinA1 형광 특성의 계획. PHluorin은 pH가 인신 매매 vesicules 또는 내분모에서와 같은 산성 (<6)이며 pH가 중성인 세포 외 배지에 노출되면 형광인 세포 내 구획에서 비형성입니다. 이를 통해 pHluorin-plexinA...

Watch this Scientific Journal Video about Use of pHluorin to Assess the Dynamics of Axon Guidance Receptors in Cell Culture and in the Chick Embryo at JoVE.com

Use of pHluorin to Assess the Dynamics of Axon Guidance Receptors in Cell Culture and in the Chick Embryo

우리는 여기에서 pH 에 민감한 녹색 형광 단백질 변이체, pHluorin의 사용을 설명, 축 슨 유도 수용체의 스파티오-측두동역학을 연구 하는 세포 표면에 인신 매매. pHluorin 태그 수용체는 병아리 배아의 전기 기공을 사용하여 세포 배양 및 생체 내에서모두 표현된다.

세포 배양과 병아리 배아에서 축슨 유도 수용체의 역학을 평가하기 위해 pHluorin의 사용

During development, axon guidance receptors play a crucial role in regulating axons sensitivity to both attractive and repulsive cues. Indeed, activation ...

Research

JoVE Journal

Neuroscience

Visualization of Proprioceptors in Drosophila Larvae and Pupae

Visualization of Proprioceptors in Drosophila Larvae and Pupae

의 Proprioceptors의 시각화<em&gt; Drosophila</em&gt; 애벌레와 Pupae

Proprioception is the ability to sense the motion, or position, of body parts by responding to stimuli arising within the body. In fruitflies and other ...

연구

신경과학

Imaging pHluorin-tagged Receptor Insertion to the Plasma Membrane in Primary Cultured Mouse Neurons

이미징은 기본 양식 마우스 뉴런의 플라즈마 막에 수용체 삽입을 pHluorin 태그

A better understanding of the mechanisms governing receptor trafficking between the plasma membrane (PM) and intracellular compartments requires an ...

Electroporation of the Hindbrain to Trace Axonal Trajectories and Synaptic Targets in the Chick Embryo

병아리 배아에서 축삭 궤적과 시냅스 대상을 추적하는 후뇌의 일렉트로

Electroporation of  the chick embryonic neural tube has many advantages such as being quick and efficient  for the expression of foreign genes into ...

Inducing Plasticity of Astrocytic Receptors by Manipulation of Neuronal Firing Rates

신경 발사 환율의 조작에 의해 성상 세포 수용체의 가소성을 유도

Close to two decades of research has established that astrocytes in situ and in vivo express numerous G protein-coupled receptors (GPCRs) that can be ...

Whole-mount Imaging of Mouse Embryo Sensory Axon Projections

마우스 배아 감각 축삭 돌기 전체 마운트 이미지

The visualization of full-length neuronal projections in embryos is essential to gain an understanding of how mammalian neuronal networks develop. Here we ...

Imaging Ca2+ Dynamics in Cone Photoreceptor Axon Terminals of the Mouse Retina

Imaging Ca2+ Dynamics in Cone Photoreceptor Axon Terminals of the Mouse Retina

이미징 CA<sup&gt; 2 +</sup마우스 망막의 광 수용체 콘 축삭 터미널에서&gt; 역학

Retinal cone photoreceptors (cones) serve daylight vision and are the basis of color discrimination. They are subject to degeneration, often leading to ...

Utilizing Combined Methodologies to Define the Role of Plasma Membrane Delivery During Axon Branching and Neuronal Morphogenesis

결합 된 방법론을 활용하여 축삭 분기 및 신경 세포 형태 형성 동안 플라즈마 멤브레인 배달의 역할을 정의합니다

During neural development, growing axons extend to multiple synaptic partners by elaborating axonal branches. Axon branching is promoted by extracellular ...

The Use of Trace Eyeblink Classical Conditioning to Assess Hippocampal Dysfunction in a Rat Model of Fetal Alcohol Spectrum Disorders

태아 알코올 스펙트럼 장애의 쥐 모델에서 Hippocampal 기능 장애를 평가 하기 위해 추적 Eyeblink 클래식 컨디셔닝의 사용

Neonatal rats were administered a relatively high concentration of ethyl alcohol (11.9% v/v) during postnatal days 4-9, a time when the fetal brain ...

Ballistic Labeling of Pyramidal Neurons in Brain Slices and in Primary Cell Culture

뇌 슬라이스와 기본 세포 배양에서 피라미드 뉴런의 탄도 라벨링

It has been reported that the size and shape of dendritic spines is related to their structural plasticity. To identify the morphological structure of ...