MALDI Imaging Mass Spectrometry (MALDI-IMS)-application of spatial proteomics for ovarian cancer classification and diagnosis.

MALDI Imaging Mass Spectrometry (MALDI-IMS)-application of spatial proteomics for ovarian cancer classification and diagnosis.
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DOI:
10.3390/ijms12010773
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发表时间:
2011-01-21
影响因子:
5.6
通讯作者:
Hoffmann P
Hoffmann P
中科院分区:
生物学2区
文献类型:
--
作者:
Gustafsson JO;Oehler MK;Ruszkiewicz A;McColl SR;Hoffmann P

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MALDI成像质谱法(MALDI-IMS)允许直接从组织切片获取代谢物、脂质、肽和蛋白质的质量数据。IMS通常作为多点分析实验来执行以生成组织特异性质量分布,或者作为高分辨率成像实验来执行,其中可以测量几乎任何组织切片上的潜在数百种分析物的相对空间丰度。至关重要的是,成像可以在没有组织成分的先验知识和不使用抗体的情况下实现。实际上,MALDI-IMS允许生成分子数据,其补充和扩展了由组织学(包括免疫组织化学)提供的信息,使得其应用对癌症生物标志物研究和诊断都有价值。本文综述了MALDI-IMS的研究现状、在卵巢癌研究中的重要应用以及在卵巢组织多肽和蛋白质分析中的应用。
MALDI imaging mass spectrometry (MALDI-IMS) allows acquisition of mass data for metabolites, lipids, peptides and proteins directly from tissue sections. IMS is typically performed either as a multiple spot profiling experiment to generate tissue specific mass profiles, or a high resolution imaging experiment where relative spatial abundance for potentially hundreds of analytes across virtually any tissue section can be measured. Crucially, imaging can be achieved without prior knowledge of tissue composition and without the use of antibodies. In effect MALDI-IMS allows generation of molecular data which complement and expand upon the information provided by histology including immuno-histochemistry, making its application valuable to both cancer biomarker research and diagnostics. The current state of MALDI-IMS, key biological applications to ovarian cancer research and practical considerations for analysis of peptides and proteins on ovarian tissue are presented in this review.
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