A single-molecule localization microscopy method for tissues reveals nonrandom nuclear pore distribution in Drosophila.
A single-molecule localization microscopy method for tissues reveals nonrandom nuclear pore distribution in Drosophila.
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一种组织的单分子定位显微镜方法揭示了果蝇核孔的非随机分布。
DOI:
10.1242/jcs.259570
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发表时间:
2021-12-15
影响因子:
4
通讯作者:
St Johnston D
中科院分区:
文献类型:
--
作者:
Cheng J;Allgeyer ES;Richens JH;Dzafic E;Palandri A;Lewków B;Sirinakis G;St Johnston D
Single-molecule localization microscopy (SMLM) can provide nanoscale resolution in thin samples but has rarely been applied to tissues because of high background from out-of-focus emitters and optical aberrations. Here, we describe a line scanning microscope that provides optical sectioning for SMLM in tissues. Imaging endogenously-tagged nucleoporins and F-actin on this system using DNA- and peptide-point accumulation for imaging in nanoscale topography (PAINT) routinely gives 30 nm resolution or better at depths greater than 20 µm. This revealed that the nuclear pores are nonrandomly distributed in most Drosophila tissues, in contrast to what is seen in cultured cells. Lamin Dm0 shows a complementary localization to the nuclear pores, suggesting that it corrals the pores. Furthermore, ectopic expression of the tissue-specific Lamin C causes the nuclear pores to distribute more randomly, whereas lamin C mutants enhance nuclear pore clustering, particularly in muscle nuclei. Given that nucleoporins interact with specific chromatin domains, nuclear pore clustering could regulate local chromatin organization and contribute to the disease phenotypes caused by human lamin A/C laminopathies. Summary: Description of a simple line scanning microscope for super-resolution imaging of tissues using DNA-PAINT. This reveals a non-random distribution of nuclear pores in most Drosophila cell-types.
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影响因子:
16.6
作者:
Cetera M;Ramirez-San Juan GR;Oakes PW;Lewellyn L;Fairchild MJ;Tanentzapf G;Gardel ML;Horne-Badovinac S
通讯作者:
Horne-Badovinac S
DOI:
10.1126/science.1199424
发表时间:
2011-02-25
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Haigo SL;Bilder D
通讯作者:
Bilder D
影响因子:
15
作者:
Cordes, Thorben;Vogelsang, Jan;Tinnefeld, Philip
通讯作者:
Tinnefeld, Philip
影响因子:
4.6
作者:
Dialynas, George;Speese, Sean;Wallrath, Lori L.
通讯作者:
Wallrath, Lori L.
影响因子:
48
作者:
Diekmann R;Kahnwald M;Schoenit A;Deschamps J;Matti U;Ries J
通讯作者:
Ries J