1
|
Lana D, Ugolini F, Melani A, Nosi D, Pedata F, Giovannini MG. The neuron-astrocyte-microglia triad in CA3 after chronic cerebral hypoperfusion in the rat: Protective effect of dipyridamole. Exp Gerontol 2017; 96:46-62. [PMID: 28606482 DOI: 10.1016/j.exger.2017.06.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 06/07/2017] [Accepted: 06/08/2017] [Indexed: 12/01/2022]
Abstract
We investigated the quantitative and morphofunctional alterations of neuron-astrocyte-microglia triads in CA3 hippocampus, in comparison to CA1, after 2 Vessel Occlusion (2VO) and the protective effect of dipyridamole. We evaluated 3 experimental groups: sham-operated rats (sham, n=15), 2VO-operated rats treated with vehicle (2VO-vehicle, n=15), and 2VO-operated rats treated with dipyridamole from day 0 to day 7 (2VO-dipyridamole, n=15), 90days after 2VO. We analyzed Stratum Pyramidalis (SP), Stratum Lucidum (SL) and Stratum Radiatum (SR) of CA3. 1) ectopic neurons increased in SL and SR of 2VO-vehicle, and 2VO-dipyridamole rats; 2) apoptotic neurons increased in SP of 2VO-vehicle rats and dipyridamole reverted this effect; 3) astrocytes increased in SP, SL and SR of 2VO-vehicle and 2VO-dipyridamole rats; 4) TNF-α expression increased in astrocytes, blocked by dipyridamole, and in dendrites in SR of 2VO-vehicle rats; 5) total microglia increased in SL and SR of 2VO-vehicle and 2VO-dipyridamole rats; 6) triads increased in SR of 2VO-vehicle rats and dipyridamole reverted this effect. Microglia cooperated with astrocytes to phagocytosis of apoptotic neurons and debris, and engulfed ectopic non-fragmented neurons in SL of 2VO-vehicle and 2VO-dipyridamole rats, through a new mechanism called phagoptosis. CA3 showed a better adaptive capacity than CA1 to the ischemic insult, possibly due to the different behaviour of astrocytes and microglial cells. Dipyridamole had neuroprotective effects.
Collapse
Affiliation(s)
- Daniele Lana
- Department of Health Sciences, Section of Pharmacology and Clinical Oncology, University of Florence, Viale Pieraccini 6, 50139 Firenze, Italy.
| | - Filippo Ugolini
- Department of Health Sciences, Section of Pharmacology and Clinical Oncology, University of Florence, Viale Pieraccini 6, 50139 Firenze, Italy.
| | - Alessia Melani
- Department of NEUROFARBA, Section of Pharmacology and Toxicology, University of Florence, Viale Pieraccini 6, 50139 Firenze, Italy.
| | - Daniele Nosi
- Department of Experimental and Clinical Medicine, University of Florence, Largo Brambilla, 50139 Firenze, Italy.
| | - Felicita Pedata
- Department of NEUROFARBA, Section of Pharmacology and Toxicology, University of Florence, Viale Pieraccini 6, 50139 Firenze, Italy.
| | - Maria Grazia Giovannini
- Department of Health Sciences, Section of Pharmacology and Clinical Oncology, University of Florence, Viale Pieraccini 6, 50139 Firenze, Italy.
| |
Collapse
|
5
|
Lin MS, Chiu MJ, Wu YW, Huang CC, Chao CC, Chen YH, Lin HJ, Li HY, Chen YF, Lin LC, Liu YB, Chao CL, Tseng WYI, Chen MF, Kao HL. Neurocognitive Improvement After Carotid Artery Stenting in Patients With Chronic Internal Carotid Artery Occlusion and Cerebral Ischemia. Stroke 2011; 42:2850-4. [DOI: 10.1161/strokeaha.111.613133] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Mao-Shin Lin
- From the Department of Internal Medicine (M.-S.L., Y.-W.W., C.-C.H., Y.-H.C., H.-J.L., H.-Y.L., L.-C.L., Y.-B.L., M.-F.C., H.-L.K.), National Taiwan University Hospital, Taipei; Graduate Institute of Clinical Medicine (M.-S.L.), Medical College, National Taiwan University, Taipei; Department of Neurology (M.-J.C., C.-C.C.), National Taiwan University Hospital, Taipei; Department of Psychology (M.-J.C.), National Taiwan University, Taipei; Department of Nuclear Medicine (Y.-W.W.), National Taiwan
| | - Ming-Jang Chiu
- From the Department of Internal Medicine (M.-S.L., Y.-W.W., C.-C.H., Y.-H.C., H.-J.L., H.-Y.L., L.-C.L., Y.-B.L., M.-F.C., H.-L.K.), National Taiwan University Hospital, Taipei; Graduate Institute of Clinical Medicine (M.-S.L.), Medical College, National Taiwan University, Taipei; Department of Neurology (M.-J.C., C.-C.C.), National Taiwan University Hospital, Taipei; Department of Psychology (M.-J.C.), National Taiwan University, Taipei; Department of Nuclear Medicine (Y.-W.W.), National Taiwan
| | - Yen-Wen Wu
- From the Department of Internal Medicine (M.-S.L., Y.-W.W., C.-C.H., Y.-H.C., H.-J.L., H.-Y.L., L.-C.L., Y.-B.L., M.-F.C., H.-L.K.), National Taiwan University Hospital, Taipei; Graduate Institute of Clinical Medicine (M.-S.L.), Medical College, National Taiwan University, Taipei; Department of Neurology (M.-J.C., C.-C.C.), National Taiwan University Hospital, Taipei; Department of Psychology (M.-J.C.), National Taiwan University, Taipei; Department of Nuclear Medicine (Y.-W.W.), National Taiwan
| | - Ching-Chang Huang
- From the Department of Internal Medicine (M.-S.L., Y.-W.W., C.-C.H., Y.-H.C., H.-J.L., H.-Y.L., L.-C.L., Y.-B.L., M.-F.C., H.-L.K.), National Taiwan University Hospital, Taipei; Graduate Institute of Clinical Medicine (M.-S.L.), Medical College, National Taiwan University, Taipei; Department of Neurology (M.-J.C., C.-C.C.), National Taiwan University Hospital, Taipei; Department of Psychology (M.-J.C.), National Taiwan University, Taipei; Department of Nuclear Medicine (Y.-W.W.), National Taiwan
| | - Chi-Chao Chao
- From the Department of Internal Medicine (M.-S.L., Y.-W.W., C.-C.H., Y.-H.C., H.-J.L., H.-Y.L., L.-C.L., Y.-B.L., M.-F.C., H.-L.K.), National Taiwan University Hospital, Taipei; Graduate Institute of Clinical Medicine (M.-S.L.), Medical College, National Taiwan University, Taipei; Department of Neurology (M.-J.C., C.-C.C.), National Taiwan University Hospital, Taipei; Department of Psychology (M.-J.C.), National Taiwan University, Taipei; Department of Nuclear Medicine (Y.-W.W.), National Taiwan
| | - Ying-Hsien Chen
- From the Department of Internal Medicine (M.-S.L., Y.-W.W., C.-C.H., Y.-H.C., H.-J.L., H.-Y.L., L.-C.L., Y.-B.L., M.-F.C., H.-L.K.), National Taiwan University Hospital, Taipei; Graduate Institute of Clinical Medicine (M.-S.L.), Medical College, National Taiwan University, Taipei; Department of Neurology (M.-J.C., C.-C.C.), National Taiwan University Hospital, Taipei; Department of Psychology (M.-J.C.), National Taiwan University, Taipei; Department of Nuclear Medicine (Y.-W.W.), National Taiwan
| | - Hung-Ju Lin
- From the Department of Internal Medicine (M.-S.L., Y.-W.W., C.-C.H., Y.-H.C., H.-J.L., H.-Y.L., L.-C.L., Y.-B.L., M.-F.C., H.-L.K.), National Taiwan University Hospital, Taipei; Graduate Institute of Clinical Medicine (M.-S.L.), Medical College, National Taiwan University, Taipei; Department of Neurology (M.-J.C., C.-C.C.), National Taiwan University Hospital, Taipei; Department of Psychology (M.-J.C.), National Taiwan University, Taipei; Department of Nuclear Medicine (Y.-W.W.), National Taiwan
| | - Hung-Yuan Li
- From the Department of Internal Medicine (M.-S.L., Y.-W.W., C.-C.H., Y.-H.C., H.-J.L., H.-Y.L., L.-C.L., Y.-B.L., M.-F.C., H.-L.K.), National Taiwan University Hospital, Taipei; Graduate Institute of Clinical Medicine (M.-S.L.), Medical College, National Taiwan University, Taipei; Department of Neurology (M.-J.C., C.-C.C.), National Taiwan University Hospital, Taipei; Department of Psychology (M.-J.C.), National Taiwan University, Taipei; Department of Nuclear Medicine (Y.-W.W.), National Taiwan
| | - Ya-Fang Chen
- From the Department of Internal Medicine (M.-S.L., Y.-W.W., C.-C.H., Y.-H.C., H.-J.L., H.-Y.L., L.-C.L., Y.-B.L., M.-F.C., H.-L.K.), National Taiwan University Hospital, Taipei; Graduate Institute of Clinical Medicine (M.-S.L.), Medical College, National Taiwan University, Taipei; Department of Neurology (M.-J.C., C.-C.C.), National Taiwan University Hospital, Taipei; Department of Psychology (M.-J.C.), National Taiwan University, Taipei; Department of Nuclear Medicine (Y.-W.W.), National Taiwan
| | - Lung-Chun Lin
- From the Department of Internal Medicine (M.-S.L., Y.-W.W., C.-C.H., Y.-H.C., H.-J.L., H.-Y.L., L.-C.L., Y.-B.L., M.-F.C., H.-L.K.), National Taiwan University Hospital, Taipei; Graduate Institute of Clinical Medicine (M.-S.L.), Medical College, National Taiwan University, Taipei; Department of Neurology (M.-J.C., C.-C.C.), National Taiwan University Hospital, Taipei; Department of Psychology (M.-J.C.), National Taiwan University, Taipei; Department of Nuclear Medicine (Y.-W.W.), National Taiwan
| | - Yen-Bin Liu
- From the Department of Internal Medicine (M.-S.L., Y.-W.W., C.-C.H., Y.-H.C., H.-J.L., H.-Y.L., L.-C.L., Y.-B.L., M.-F.C., H.-L.K.), National Taiwan University Hospital, Taipei; Graduate Institute of Clinical Medicine (M.-S.L.), Medical College, National Taiwan University, Taipei; Department of Neurology (M.-J.C., C.-C.C.), National Taiwan University Hospital, Taipei; Department of Psychology (M.-J.C.), National Taiwan University, Taipei; Department of Nuclear Medicine (Y.-W.W.), National Taiwan
| | - Chia-Lun Chao
- From the Department of Internal Medicine (M.-S.L., Y.-W.W., C.-C.H., Y.-H.C., H.-J.L., H.-Y.L., L.-C.L., Y.-B.L., M.-F.C., H.-L.K.), National Taiwan University Hospital, Taipei; Graduate Institute of Clinical Medicine (M.-S.L.), Medical College, National Taiwan University, Taipei; Department of Neurology (M.-J.C., C.-C.C.), National Taiwan University Hospital, Taipei; Department of Psychology (M.-J.C.), National Taiwan University, Taipei; Department of Nuclear Medicine (Y.-W.W.), National Taiwan
| | - Wen-Yih Isaac Tseng
- From the Department of Internal Medicine (M.-S.L., Y.-W.W., C.-C.H., Y.-H.C., H.-J.L., H.-Y.L., L.-C.L., Y.-B.L., M.-F.C., H.-L.K.), National Taiwan University Hospital, Taipei; Graduate Institute of Clinical Medicine (M.-S.L.), Medical College, National Taiwan University, Taipei; Department of Neurology (M.-J.C., C.-C.C.), National Taiwan University Hospital, Taipei; Department of Psychology (M.-J.C.), National Taiwan University, Taipei; Department of Nuclear Medicine (Y.-W.W.), National Taiwan
| | - Ming-Fong Chen
- From the Department of Internal Medicine (M.-S.L., Y.-W.W., C.-C.H., Y.-H.C., H.-J.L., H.-Y.L., L.-C.L., Y.-B.L., M.-F.C., H.-L.K.), National Taiwan University Hospital, Taipei; Graduate Institute of Clinical Medicine (M.-S.L.), Medical College, National Taiwan University, Taipei; Department of Neurology (M.-J.C., C.-C.C.), National Taiwan University Hospital, Taipei; Department of Psychology (M.-J.C.), National Taiwan University, Taipei; Department of Nuclear Medicine (Y.-W.W.), National Taiwan
| | - Hsien-Li Kao
- From the Department of Internal Medicine (M.-S.L., Y.-W.W., C.-C.H., Y.-H.C., H.-J.L., H.-Y.L., L.-C.L., Y.-B.L., M.-F.C., H.-L.K.), National Taiwan University Hospital, Taipei; Graduate Institute of Clinical Medicine (M.-S.L.), Medical College, National Taiwan University, Taipei; Department of Neurology (M.-J.C., C.-C.C.), National Taiwan University Hospital, Taipei; Department of Psychology (M.-J.C.), National Taiwan University, Taipei; Department of Nuclear Medicine (Y.-W.W.), National Taiwan
| |
Collapse
|