The question every lung lab asks: "What microscope do I need for lung tissue imaging in the UK, and when should I use EVOS M7000 vs EVOS S1000?" The short answer is that the two systems are built for different halves of lung microscopy. If you are doing live precision-cut lung slices (PCLS), alveologenesis time-lapse or lung explant culture, you need the inverted live-cell capabilities of the EVOS M7000 with an on-stage incubator. If you are imaging fixed, slide-mounted lung sections with multiplex immunofluorescence, the EVOS S1000 is the better fit. For very thick whole-lung 3D or ultra-high-plex spatial studies, neither EVOS is the right tool.
Lung Tissue Imaging Microscope UK: EVOS M7000 vs S1000 2026
What microscope do I need for lung tissue imaging in the UK, and when should I use EVOS M7000 vs EVOS S1000?
What Lung Tissue Imaging Actually Needs
Lung tissue comes in two main microscopy forms: live, thick precision-cut lung slices and thin, fixed tissue sections. Each places different demands on optics, environment and throughput.
Live precision-cut lung slices (PCLS)
- Thickness. PCLS are typically 100–300 µm, so some Z-sectioning is useful even if widefield.
- Environmental control. Live slices need 37 °C, 5% CO₂ and usually 95% air for maintenance; alveologenesis and injury assays may also need modified O₂.
- Autofluorescence. Lung has strong elastin and collagen autofluorescence, especially in the green channel; choose fluorophores and filters carefully.
- Multi-channel fluorescence. Tracking epithelial, endothelial, immune and fibroblast markers in the same slice needs at least 2–4 fluorescent channels.
- Time-lapse stability. Hours to days of imaging demands a stable stage, low phototoxicity and drift correction.
Fixed lung tissue sections
- Thin sections. 5–10 µm formalin-fixed paraffin-embedded (FFPE) or frozen sections sit on slides and do not need live environment.
- High multiplexing. Tumour microenvironment and disease mapping increasingly use 5–9+ marker panels, needing spectral unmixing.
- Large scan areas. Whole-slide or tile scanning helps capture heterogeneous tissue architecture.
- Quantitative pathology. Cell counting, neighbourhood analysis and region classification require software such as QuPath or HALO.
2D vs 3D trade-offs
Thin fixed sections give high-resolution, high-throughput snapshots of marker distribution across many samples, but they lose depth information. Live PCLS preserve the 3D alveolar architecture and allow dynamic observation, yet they are thicker, scatter more light and produce lower signal-to-background at depth. Very deep or cleared whole-lung 3D imaging needs confocal, light-sheet or imaging mass cytometry rather than a widefield EVOS system.
Bottom line: match the microscope to the biological question. Live dynamics and 3D structure → inverted live system. Fixed multiplex mapping → slide-based spectral system. Whole-organ 3D or very high-plex → dedicated advanced platform.
Comparison: EVOS M7000 vs EVOS S1000 vs Dedicated Advanced Systems
| Requirement | EVOS M7000 + Onstage Incubator | EVOS S1000 | Confocal / Light-Sheet / Imaging Mass Cytometry |
|---|---|---|---|
| Best lung use case | Live PCLS, alveologenesis, lung explant time-lapse | Fixed lung sections, multiplex IF, tumour microenvironment | Thick whole-lung 3D, cleared lung, very high-plex spatial |
| Live imaging | ✅ Designed for it | ❌ Not live-capable | Confocal/light-sheet can be live; IMC is fixed only |
| Environmental control | On-stage incubator with CO₂ and temperature; O₂ possible with gas mixer | Not applicable (slide-based) | Depends on platform; live confocal/light-sheet chambers available |
| Z-stacks / 3D | ✅ Z-stacks for PCLS and explants | ❌ Not designed for Z-stack | ✅ Optical sectioning or true 3D |
| Transmitted light | ✅ Brightfield / phase / colour options | ✅ Slide brightfield available | Usually fluorescence only |
| Multiplex fluorescence | Multi-channel (typically 4+ colours) | Up to 9-plex spectral multiplex IF | Variable; IMC reaches 40+ metal channels |
| Sample format | Culture inserts, dishes, chambered slides | Glass slides | Slides, cleared tissue, specialised holders |
| Relative cost / complexity | Mid-range | Mid-range | Higher cost and specialist expertise |
EVOS M7000: The Right Choice for Live PCLS and Alveologenesis
The EVOS M7000 is a fully integrated inverted fluorescence imaging system. For lung work its value is live, multi-channel, time-lapse imaging of PCLS and lung explants with the OSI-2 on-stage incubator maintaining temperature and CO₂ throughout the experiment.
- Live PCLS alveologenesis. Time-lapse imaging of epithelial dynamics in mouse precision-cut lung slices is the classic use case, following work from Akram, Yates and Mongey et al. (2019).
- Lung explant culture. Track branching, injury response or repair over hours to days while preserving native architecture.
- Z-stacks. Capture through 100–300 µm slices to follow alveolar structure, though contrast falls with depth because this is not confocal.
- Transmitted light. Useful for finding tissue landmarks and correlating morphology with fluorescence.
- Multi-channel fluorescence. Separate epithelial (E-cadherin, SPC), mesenchymal (PDGFRα, vimentin), endothelial (CD31) and immune markers in the same slice.
Important limitation: the EVOS M7000 is a widefield inverted system, not a confocal or light-sheet microscope. For very thick, strongly scattering whole-lung tissue or deep alveolar imaging, confocal, light-sheet or cleared-tissue methods will outperform it.
When the experiment is about live dynamics — epithelial movement, alveologenesis, injury response, cell division — the EVOS M7000 with on-stage incubation is the practical EVOS choice for UK lung labs.
EVOS S1000: The Right Choice for Fixed Lung Sections and Multiplex IF
The EVOS S1000 is a slide-based imaging system built around spectral multiplexing. For lung research it excels where the sample is thin, fixed and needs many markers resolved simultaneously.
- Fixed lung sections. 5–10 µm FFPE or frozen sections are the standard input. No environmental control is needed or provided.
- Multiplex immunofluorescence. Up to 9-plex spectral IF lets you map immune infiltrates, tumour-stroma boundaries and vascular niches in a single section.
- Tumour microenvironment. Resolve multiple immune cell subsets (for example CD3, CD4, CD8, CD68, FoxP3) plus structural markers in NSCLC or metastasis models, similar to the approach described by Zhao & Lu (2024).
- OMAP / CODEX context. The S1000 fits into spatial biology workflows where marker panels are designed for tissue mapping, complementing higher-plex methods such as CODEX, imaging mass cytometry or spatial transcriptomics.
Important limitations: the EVOS S1000 is not live, not a Z-stack system and not suitable for PCLS. If your experiment needs live PCLS time-lapse, use the EVOS M7000 instead.
When the question is "Which cells and markers are where in fixed lung tissue?", the EVOS S1000 is the appropriate EVOS platform.
Sample Preparation and Marker Suggestions
| Step / marker | Live PCLS (EVOS M7000) | Fixed lung sections (EVOS S1000) |
|---|---|---|
| Sample thickness | 100–300 µm, vibratome-cut in ice-cold buffer | 5–10 µm FFPE or frozen sections on slides |
| Culture medium | DMEM/Ham's F-12 + supplements, in culture insert or chamber | Not applicable |
| Live dyes / reporters | CellTracker, fluorescent reporters, nuclear dyes such as Hoechst | Not applicable |
| Epithelial markers | SPC (SFTPC), E-cadherin, Sox9, β-catenin reporters | Pan-CK, E-cadherin, TTF-1, SPC, p63 |
| Mesenchymal markers | PDGFRα, vimentin, α-SMA reporters | α-SMA, vimentin, desmin, PDGFRα |
| Immune markers | CX3CR1-GFP, CD45 reporters where available | CD3, CD4, CD8, CD68, CD11b, FoxP3 |
| Endothelial markers | CD31-GFP, VE-cadherin reporters | CD31, vWF, ERG |
| Fixation / antigen retrieval | None — keep alive throughout imaging | FFPE: dewax, HIER; frozen: acetone/methanol fixation |
| Autofluorescence handling | Keep exposures short; use far-red dyes where possible | Spectral unmixing, autofluorescence subtraction |
Analysis Tools for Lung Tissue Microscopy
| Tool | Best for | Lung workflow fit |
|---|---|---|
| ImageJ / Fiji | Free, extensible image analysis and plugins | 2D intensity, Z-projection, drift correction for PCLS time-lapse |
| CellProfiler | Batch image analysis pipelines | High-throughput fixed-section segmentation and marker quantification |
| QuPath | Digital pathology and multiplex IF | Fixed lung sections, cell classification, tissue annotation |
| Imaris | 3D/4D visualisation and object tracking | PCLS Z-stacks and time-lapse, alveolar structure rendering |
| Celleste | Integrated EVOS acquisition and analysis | Fast segmentation and reporting on EVOS-acquired images |
| HALO | Whole-slide quantitative pathology | Large cohorts of multiplex IF lung sections, region and cell analysis |
Product Cards
EVOS M7000 — Live Lung / PCLS Imaging
The EVOS M7000 is the live-cell inverted imaging platform for lung labs working with precision-cut lung slices, alveologenesis and lung explant time-lapse.
- Multi-channel fluorescence and transmitted light
- Time-lapse, multi-position and Z-stack acquisition
- On-stage incubator for temperature and CO₂ control
- Compatible with PCLS culture inserts and chambered slides
Best for: live PCLS, alveologenesis, lung explant dynamics.
Read EVOS M7000 ReviewEVOS S1000 — Fixed Lung Section Multiplex IF
The EVOS S1000 is the slide-based spectral imaging platform for fixed lung tissue sections and multiplex immunofluorescence.
- Up to 9-plex spectral multiplex IF
- Slide-based, whole-section scanning capability
- Ideal for tumour microenvironment and spatial mapping
- Fits OMAP / CODEX-style panel design workflows
Best for: fixed sections, multiplex IF, lung cancer microenvironment.
Read EVOS S1000 ReviewPublications and Resources
Live imaging of alveologenesis in precision-cut lung slices reveals dynamic epithelial cell behaviour
Akram, Yates & Mongey et al., Nature Communications 2019 — foundational live PCLS method linking dynamic epithelial behaviour to alveologenesis.
DOI: 10.1038/s41467-019-09067-3Time-lapse Imaging of Alveologenesis in Mouse Precision-cut Lung Slices
Akram & Yates, BIO-PROTOCOL 2019 — detailed step-by-step protocol for live PCLS imaging.
DOI: 10.21769/BioProtoc.3403Living human lung slices for ex vivo modelling of lung cancer
Mansouri et al., JCI Insight 2025 — human PCLS as a translational ex vivo model for lung cancer.
DOI: 10.1172/jci.insight.190703Epithelial outgrowth through mesenchymal rings drives lung alveologenesis
Negretti et al., JCI Insight 2025 — new mechanistic insights into alveolar formation using live imaging approaches.
DOI: 10.1172/jci.insight.187876Tumor immune microenvironment analysis of non-small cell lung cancer development through multiplex immunofluorescence
Zhao & Lu, Translational Lung Cancer Research 2024 — multiplex IF workflow for mapping NSCLC immune contexture.
DOI: 10.21037/tlcr-24-379Thermo Fisher UK EVOS S1000 Imaging System
Official product page for the slide-based EVOS S1000 spectral multiplex imaging system.
Thermo Fisher UKFrequently Asked Questions
What microscope do I need for lung tissue imaging in the UK?
It depends on the sample. For live precision-cut lung slices (PCLS), use an inverted fluorescence microscope with environmental control and Z-stack capability, such as the EVOS M7000 with an on-stage incubator. For fixed, thin lung sections with multiplex immunofluorescence, the EVOS S1000 is a strong slide-based choice. For thick whole-lung 3D or very high-plex spatial work, consider confocal, light-sheet or imaging mass cytometry.
When should I use the EVOS M7000 versus the EVOS S1000 for lung imaging?
Use the EVOS M7000 for live lung tissue experiments, including PCLS time-lapse, alveologenesis and lung explant culture, where temperature, CO₂ and optionally O₂ must be maintained. Use the EVOS S1000 for fixed, slide-mounted lung sections that need brightfield or up to 9-plex spectral multiplex immunofluorescence. The S1000 is not designed for live imaging, Z-stacks or PCLS.
Can the EVOS M7000 image whole thick lung tissue?
The EVOS M7000 can acquire Z-stacks through live PCLS and lung explants, but it is a widefield inverted system, not a confocal or light-sheet microscope. For very thick or strongly scattering whole-lung tissue, confocal, light-sheet or optical clearing plus appropriate 3D imaging will give better signal-to-background and deeper penetration.
Is the EVOS S1000 suitable for live PCLS alveologenesis imaging?
No. The EVOS S1000 is a slide-based imaging system for fixed tissue sections. It does not provide the environmental control, Z-stack acquisition or chamber geometry required for live precision-cut lung slice time-lapse. For live PCLS, choose the EVOS M7000 with on-stage incubation instead.
Which analysis software is best for lung tissue microscopy?
ImageJ/Fiji and CellProfiler are free, flexible options for 2D segmentation and intensity quantification. QuPath is excellent for histopathology and multiplex IF on fixed lung sections. Imaris, Celleste and HALO are commercial platforms for 3D rendering, object classification and whole-slide multiplex analysis respectively.
Do I need spectral unmixing for lung multiplex immunofluorescence?
Yes, if you are running more than 3–4 fluorophores on a single fixed lung section. The EVOS S1000 supports up to 9-plex spectral multiplex IF, which relies on spectral unmixing to separate overlapping signals. This is particularly useful for tumour microenvironment studies where multiple immune and stromal markers must be resolved simultaneously.