PMID- 32515437 OWN - NLM STAT- MEDLINE DCOM- 20210514 LR - 20210514 IS - 1364-5528 (Electronic) IS - 0003-2654 (Linking) VI - 145 IP - 14 DP - 2020 Jul 21 TI - Comparison of standard and HD FT-IR with multimodal CARS/TPEF/SHG/FLIMS imaging in the detection of the early stage of pulmonary metastasis of murine breast cancer. PG - 4982-4990 LID - 10.1039/d0an00762e [doi] AB - Lungs, due to their high oxygen availability and vascularization, are an ideal environment for cancer cell migration, metastasis and tumour formation. These processes are directly connected with extracellular matrix (ECM) remodelling, resulting from cancer cell infiltration and preparation of the environment suitable for tumour growth. Herein, we compare the potential of fast, label-free and non-destructive methods of Fourier-transform infrared spectroscopy (FT-IR) in standard and high definition (HD) modes with nonlinear coherent anti-Stokes Raman scattering (CARS), second harmonic generation (SHG), two-photon excited fluorescence (TPEF) and a fluorescence lifetime imaging (FLIM) technique for lung metastasis detection. We show their potential in the detection of lung macrometastasis, in which we already observed the ECM remodelling. The CARS image revealed a dense cell fraction typical of ECM remodeling and reduction of the TPEF signal together with an increase of fluorescence lifetime predominantly due to NAD(P)H suggesting metabolic changes in the metastatic foci. FT-IR spectroscopy allowed not only for macrometastasis detection but also their stage definition based mainly on the analysis of proteins, RNA and glycogen fractions. The multimodal approach additionally suggested partial enzymatic degradation of elastin in ECM and collagen remodelling. FAU - Chrabaszcz, Karolina AU - Chrabaszcz K AD - Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa St., 30-387 Krakow, Poland. FAU - Meyer, Tobias AU - Meyer T FAU - Bae, Hyeonsoo AU - Bae H FAU - Schmitt, Michael AU - Schmitt M FAU - Jasztal, Agnieszka AU - Jasztal A FAU - Smeda, Marta AU - Smeda M FAU - Stojak, Marta AU - Stojak M FAU - Popp, Jurgen AU - Popp J FAU - Malek, Kamilla AU - Malek K FAU - Marzec, Katarzyna M AU - Marzec KM LA - eng PT - Journal Article DEP - 20200609 PL - England TA - Analyst JT - The Analyst JID - 0372652 SB - IM MH - Animals MH - *Breast Neoplasms/diagnostic imaging MH - Humans MH - *Lung Neoplasms/diagnostic imaging MH - Mice MH - Photons MH - Spectroscopy, Fourier Transform Infrared MH - Spectrum Analysis, Raman EDAT- 2020/06/10 06:00 MHDA- 2021/05/15 06:00 CRDT- 2020/06/10 06:00 PHST- 2020/06/10 06:00 [pubmed] PHST- 2021/05/15 06:00 [medline] PHST- 2020/06/10 06:00 [entrez] AID - 10.1039/d0an00762e [doi] PST - ppublish SO - Analyst. 2020 Jul 21;145(14):4982-4990. doi: 10.1039/d0an00762e. Epub 2020 Jun 9.