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Life Sciences Commons

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Cell and Developmental Biology

Aga Khan University

Centre for Regenerative Medicine & Stem Cell Research

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Full-Text Articles in Life Sciences

Combining Multicolor Fish With Fluorescence Lifetime Imaging For Chromosomal Identification And Chromosomal Sub Structure Investigation, Archana Bhartiya, Ian Robinson, Mohammed Yousuf, Stanley W. Botchway Mar 2021

Combining Multicolor Fish With Fluorescence Lifetime Imaging For Chromosomal Identification And Chromosomal Sub Structure Investigation, Archana Bhartiya, Ian Robinson, Mohammed Yousuf, Stanley W. Botchway

Centre for Regenerative Medicine & Stem Cell Research

Understanding the structure of chromatin in chromosomes during normal and diseased state of cells is still one of the key challenges in structural biology. Using DAPI staining alone together with Fluorescence lifetime imaging (FLIM), the environment of chromatin in chromosomes can be explored. Fluorescence lifetime can be used to probe the environment of a fluorophore such as energy transfer, pH and viscosity. Multicolor FISH (M-FISH) is a technique that allows individual chromosome identification, classification as well as assessment of the entire genome. Here we describe a combined approach using DAPI as a DNA environment sensor together with FLIM and M-FISH …


Contribution Of Advanced Fluorescence Nano Microscopy Towards Revealing Mitotic Chromosome Structure, S W. Botchway, Safana Farooq, A Sajid, I K. Robinson, Mohammed Yousuf Mar 2021

Contribution Of Advanced Fluorescence Nano Microscopy Towards Revealing Mitotic Chromosome Structure, S W. Botchway, Safana Farooq, A Sajid, I K. Robinson, Mohammed Yousuf

Centre for Regenerative Medicine & Stem Cell Research

The organization of chromatin into higher-order structures and its condensation process represent one of the key challenges in structural biology. This is important for elucidating several disease states. To address this long-standing problem, development of advanced imaging methods has played an essential role in providing understanding into mitotic chromosome structure and compaction. Amongst these are two fast evolving fluorescence imaging technologies, specifically fluorescence lifetime imaging (FLIM) and super-resolution microscopy (SRM). FLIM in particular has been lacking in the application of chromosome research while SRM has been successfully applied although not widely. Both these techniques are capable of providing fluorescence imaging …