Search results for "LASER MICRODISSECTION"
showing 4 items of 4 documents
Laser Microdissection of the Alveolar Duct Enables Single-Cell Genomic Analysis
2014
Complex tissues such as the lung are composed of structural hierarchies such as alveoli, alveolar ducts, and lobules. Some structural units, such as the alveolar duct, appear to participate in tissue repair as well as the development of bronchioalveolar carcinoma. Here, we demonstrate an approach to conduct laser microdissection of the lung alveolar duct for single-cell PCR analysis. Our approach involved three steps. The initial preparation used mechanical sectioning of the lung tissue with sufficient thickness to encompass the structure of interest. In the case of the alveolar duct, the precision-cut lung slices were 200µm thick; the slices were processed using near-physiologic conditions…
Fungal genes related to calcium homeostasis and signalling are upregulated in symbiotic arbuscular mycorrhiza interactions
2012
Fluctuations in intracellular calcium levels generate signalling events and regulate different cellular processes. Whilst the implication of Ca2+ in plant responses during arbuscular mycorrhiza (AM) interactions is well documented, nothing is known about the regulation or role of this secondary messenger in the fungal symbiont. The spatio-temporal expression pattern of putatively Ca2+-related genes of Glomus intraradices BEG141 encoding five proteins involved in membrane transport and one nuclear protein kinase, was investigated during the AM symbiosis. Expression profiles related to successful colonization of host roots were observed in interactions of G. intraradices with roots of wild-ty…
Utility of laser microdissection and pressure catapulting in the diagnosis of non small cell lung cancer: Preliminary data
2014
Background: There are controversies about the adequacy of tumor tissue sample on which the sequencing of molecular diagnosis could be performed to achieve the targeted-therapy on lung cancer. The aim of this study is to demonstrate the role of the Laser Microdissection Pressure Catapulting (LMPC) technique to obtain adequate tumor tissue sample for the molecular analysis of gene mutations in the target therapy of lung cancer. Findings: From a consecutive series of 24 patients with a diagnosis of locally-advanced or metastatic Non Small Cell Lung Cancer (NSCLC), we performed 29 diagnostic procedures using the system of LMPC, to obtain an homogeneous samples where it was possible to run the s…
Protein actors sustaining arbuscular mycorrhizal symbiosis: underground artists break the silence
2013
'Summary' 26 I. 'Casting for a scenario' 26 II. 'Nominees for a preliminary role' 27 III. 'Nominees for a leading role' 32 IV. 'Future artists' 37 'Acknowledgements' 38 References 38 Summary The roots of most land plants can enter a relationship with soil-borne fungi belonging to the phylum Glomeromycota. This symbiosis with arbuscular mycorrhizal (AM) fungi belongs to the so-called biotrophic interactions, involving the intracellular accommodation of a microorganism by a living plant cell without causing the death of the host. Although profiling technologies have generated an increasing depository of plant and fungal proteins eligible for sustaining AM accommodation and functioning, a …