Epitope-preserving magnified analysis of proteome (eMAP).
Epitope-preserving magnified analysis of proteome (eMAP).
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DOI:
10.1126/sciadv.abf6589
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发表时间:
2021-11-12
期刊:
影响因子:
13.6
通讯作者:
Chung K
中科院分区:
文献类型:
--
作者:
Park J;Khan S;Yun DH;Ku T;Villa KL;Lee JE;Zhang Q;Park J;Feng G;Nedivi E;Chung K
eMAP preserves epitopes by purely physical tissue-hydrogel hybridization in swellable tissue-gel networks. Synthetic tissue-hydrogel methods have enabled superresolution investigation of biological systems using diffraction-limited microscopy. However, chemical modification by fixatives can cause loss of antigenicity, limiting molecular interrogation of the tissue gel. Here, we present epitope-preserving magnified analysis of proteome (eMAP) that uses purely physical tissue-gel hybridization to minimize the loss of antigenicity while allowing permanent anchoring of biomolecules. We achieved success rates of 96% and 94% with synaptic antibodies for mouse and marmoset brains, respectively. Maximal preservation of antigenicity allows imaging of nanoscopic architectures in 1000-fold expanded tissues without additional signal amplification. eMAP-processed tissue gel can endure repeated staining and destaining without epitope loss or structural damage, enabling highly multiplexed proteomic analysis. We demonstrated the utility of eMAP as a nanoscopic proteomic interrogation tool by investigating molecular heterogeneity in inhibitory synapses in the mouse brain neocortex and characterizing the spatial distributions of synaptic proteins within synapses in mouse and marmoset brains.
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影响因子:
16.2
作者:
Chiu CQ;Martenson JS;Yamazaki M;Natsume R;Sakimura K;Tomita S;Tavalin SJ;Higley MJ
通讯作者:
Higley MJ
DOI:
10.1126/science.1260088
发表时间:
2015-01-30
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Chen F;Tillberg PW;Boyden ES
通讯作者:
Boyden ES
影响因子:
16.2
作者:
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通讯作者:
Zhuang, Xiaowei
DOI:
10.1073/pnas.0810149105
发表时间:
2008-12-16
影响因子:
11.1
作者:
Lee, Wei-Chung Allen;Chen, Jerry L.;Nedivi, Elly
通讯作者:
Nedivi, Elly
影响因子:
16.2
作者:
Miller CT;Freiwald WA;Leopold DA;Mitchell JF;Silva AC;Wang X
通讯作者:
Wang X