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Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Sci+Rep 2017 ; 7 (ä): ä Nephropedia Template TP
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In vivo longitudinal visualization of bone marrow engraftment process in mouse calvaria using two-photon microscopy #MMPMID28276477
Le VH; Lee S; Lee S; Wang T; Hyuk Jang W; Yoon Y; Kwon S; Kim H; Lee SW; Hean Kim K
Sci Rep 2017[]; 7 (ä): ä PMID28276477show ga
Intravital microscopy of mouse calvarial bone marrow (BM) is a powerful method for studying hematopoietic stem cells (HSCs) and the BM microenvironment at the cellular level. However, the current method used to access the mouse calvaria allows for only a few imaging times in the same mouse because of scar formation and inflammation induced by multiple surgeries. Longitudinal imaging of the BM may help better understand its microenvironment. In this study, a mouse calvarial window model was developed for longitudinal imaging that involves attaching a cover glass window onto the mouse calvaria and sealing the surrounding exposed area with cyanoacrylate glue and dental cement. The model was used for the longitudinal two-photon microscopy (TPM) imaging of the BM engraftment process. The same BM cavity sites were imaged multiple times over 4 weeks after BM transplantation (BMT). Temporal changes in the BM microenvironment, such as the reconstitution of transplanted BM cells and the recovery of vasculature, were observed and analysed qualitatively and quantitatively. Longitudinal intravital microscopy using the mouse calvarial window model was successfully demonstrated and may be useful for further BM studies.