On the variety of cell death pathways in the Lurcher mutant mouse

被引:11
作者
Baeurle, Joerg [1 ]
Kranda, Karel [1 ]
Frischmuth, Sabine [1 ]
机构
[1] Univ Med Berlin, Charite, Dept Physiol, D-14195 Berlin, Germany
关键词
apoptosis; autophagy; excitotoxicity; activated caspase-3; Fluoro Jade-B;
D O I
10.1007/s00401-006-0137-x
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Apoptosis as well as autophagy have been implicated in the death of cerebellar Purkinje cells (PCs) in the Lurcher (Lc/+) mutant mouse and at least two different apoptotic pathways participate in the transsynaptic death of granule cells (GC) and inferior olivary (IO) neurones. The relative contribution of these pathways can only be assessed from their momentary involvement at any stage of the complete course of neurodegeneration. Here we used quantitative labelling for activated caspase-3 (Casp-3) and Fluoro-Jade B (FJ-B) to investigate the spatio-temporal pattern of neuronal death from P6 to P67 in Lc/+ mutants. Activated Casp-3 was present only in narrow time intervals (P14 to P22 in PCs; P14 to P28 in GCs) and in small subpopulations of PCs, GCs, and IO neurones. FJ-B positive PCs were detected during a broader period (P14 to P28), and outnumbered Casp-3 labelled PCs by a factor exceeding eight. Nevertheless, FJ-B labelling was restricted to PCs and never found in either GC or IO neurones. In conclusion, we present the first complete time course and extent of Casp-3 activation in Lc/+ mutants and show that the majority of dying neurones in Lc/+ mutants undergo Casp-3 independent cell death. The cellular overload produced by the initial gene defect in Lc/+ mutants apparently activates a variety of apoptotic and non-apoptotic pathways within the same neuronal population. Moreover, we present the first evidence for the ability of FJ-B to selectively label a discrete population of dying PCs, implying a higher selectivity of FJ-B than previously supposed.
引用
收藏
页码:691 / 702
页数:12
相关论文
共 60 条
[1]   Fluoro-Jade B stains quiescent and reactive astrocytes in the rodent spinal cord [J].
Anderson, KJ ;
Fugaccia, I ;
Scheff, SW .
JOURNAL OF NEUROTRAUMA, 2003, 20 (11) :1223-1231
[2]   Autophagy: Dual roles in life and death? [J].
Baehrecke, EH .
NATURE REVIEWS MOLECULAR CELL BIOLOGY, 2005, 6 (06) :505-510
[3]  
BATINI C, 1990, ARCH ITAL BIOL, V128, P127
[4]  
Bäurle J, 1998, J COMP NEUROL, V402, P111
[5]   Increased Alix (apoptosis-linked gene-2 interacting protein X) immunoreactivity in the degenerating striatum of rats chronically treated by 3-nitropropionic acid [J].
Blum, D ;
Hemming, FJ ;
Galas, MC ;
Torch, S ;
Cuvelier, L ;
Schiffmann, SN ;
Sadoul, R .
NEUROSCIENCE LETTERS, 2004, 368 (03) :309-313
[6]   STRUCTURAL AND QUANTITATIVE STUDIES ON THE NORMAL C3H AND LURCHER MUTANT MOUSE [J].
CADDY, KWT ;
BISCOE, TJ .
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES, 1979, 287 (1020) :167-&
[7]   MONOCLONAL-ANTIBODIES DIRECTED AGAINST THE CALCIUM-BINDING PROTEIN CALBINDIN-D-28K [J].
CELIO, MR ;
BAIER, W ;
SCHARER, L ;
GREGERSEN, HJ ;
DEVIRAGH, PA ;
NORMAN, AW .
CELL CALCIUM, 1990, 11 (09) :599-602
[8]  
CHOI DW, 1995, TRENDS NEUROSCI, V18, P58
[9]  
Chu T, 2000, J NEUROBIOL, V43, P18, DOI 10.1002/(SICI)1097-4695(200004)43:1<18::AID-NEU2>3.0.CO
[10]  
2-C