Hydrogel‐embedded precision‐cut lung slices support ex vivo culture of in vivo‐induced premalignant lung lesions
Abstract Lung cancer is the leading cause of global cancer death, and prevention strategies are key to reducing mortality. Medical prevention of premalignant lesion (PML) progression may have a larger impact than treatment on mortality by targeting high‐risk populations and reducing their lung cance...
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| Format: | Article |
| Language: | English |
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Wiley
2025-07-01
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| Series: | Physiological Reports |
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| Online Access: | https://doi.org/10.14814/phy2.70459 |
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| author | Caroline Hauer Rachel Blomberg Kayla Sompel Chelsea M. Magin Meredith A. Tennis |
| author_facet | Caroline Hauer Rachel Blomberg Kayla Sompel Chelsea M. Magin Meredith A. Tennis |
| author_sort | Caroline Hauer |
| collection | DOAJ |
| description | Abstract Lung cancer is the leading cause of global cancer death, and prevention strategies are key to reducing mortality. Medical prevention of premalignant lesion (PML) progression may have a larger impact than treatment on mortality by targeting high‐risk populations and reducing their lung cancer risk. PMLs are difficult to study in humans but are easily accessible in murine preclinical carcinogenesis studies. Precision‐cut lung slices (PCLS) are underutilized as an ex vivo model for lung cancer studies due to limited culture time. Embedding PCLS within bioengineered hydrogels extends PCLS viability and functionality for up to 6 weeks. Here, we embedded PCLS with PMLs generated from urethane‐exposed mice in cell‐degradable and nondegradable hydrogels to study viability and responsiveness to PML interception over 6 weeks. PMLs in hydrogel‐embedded PCLS maintained viability, gene expression, and proliferation. Treatment of hydrogel‐embedded PCLS containing urethane‐induced PMLs with iloprost, a known lung cancer prevention agent, recapitulated in vivo gene expression and activity. Our studies also showed that iloprost reduced proliferation and PML size in PCLS embedded in degradable hydrogels. These results demonstrate that hydrogel‐embedded PCLS models support long‐term culture of in vivo generated PMLs. This modeling approach will improve preclinical studies of cancer biology and prevention across cancer types. |
| format | Article |
| id | doaj-art-7c87e44eb1ec4ca3a2df599fb95b6d28 |
| institution | Kabale University |
| issn | 2051-817X |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Physiological Reports |
| spelling | doaj-art-7c87e44eb1ec4ca3a2df599fb95b6d282025-08-20T03:27:44ZengWileyPhysiological Reports2051-817X2025-07-011313n/an/a10.14814/phy2.70459Hydrogel‐embedded precision‐cut lung slices support ex vivo culture of in vivo‐induced premalignant lung lesionsCaroline Hauer0Rachel Blomberg1Kayla Sompel2Chelsea M. Magin3Meredith A. Tennis4Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine University of Colorado Anschutz Medical Campus Aurora Colorado USADepartment of Bioengineering University of Colorado Denver | Anschutz Aurora Colorado USADivision of Pulmonary Sciences and Critical Care Medicine, Department of Medicine University of Colorado Anschutz Medical Campus Aurora Colorado USADivision of Pulmonary Sciences and Critical Care Medicine, Department of Medicine University of Colorado Anschutz Medical Campus Aurora Colorado USADivision of Pulmonary Sciences and Critical Care Medicine, Department of Medicine University of Colorado Anschutz Medical Campus Aurora Colorado USAAbstract Lung cancer is the leading cause of global cancer death, and prevention strategies are key to reducing mortality. Medical prevention of premalignant lesion (PML) progression may have a larger impact than treatment on mortality by targeting high‐risk populations and reducing their lung cancer risk. PMLs are difficult to study in humans but are easily accessible in murine preclinical carcinogenesis studies. Precision‐cut lung slices (PCLS) are underutilized as an ex vivo model for lung cancer studies due to limited culture time. Embedding PCLS within bioengineered hydrogels extends PCLS viability and functionality for up to 6 weeks. Here, we embedded PCLS with PMLs generated from urethane‐exposed mice in cell‐degradable and nondegradable hydrogels to study viability and responsiveness to PML interception over 6 weeks. PMLs in hydrogel‐embedded PCLS maintained viability, gene expression, and proliferation. Treatment of hydrogel‐embedded PCLS containing urethane‐induced PMLs with iloprost, a known lung cancer prevention agent, recapitulated in vivo gene expression and activity. Our studies also showed that iloprost reduced proliferation and PML size in PCLS embedded in degradable hydrogels. These results demonstrate that hydrogel‐embedded PCLS models support long‐term culture of in vivo generated PMLs. This modeling approach will improve preclinical studies of cancer biology and prevention across cancer types.https://doi.org/10.14814/phy2.70459biomaterialshydrogelslung cancerprecision‐cut lung slicepremalignant lesion |
| spellingShingle | Caroline Hauer Rachel Blomberg Kayla Sompel Chelsea M. Magin Meredith A. Tennis Hydrogel‐embedded precision‐cut lung slices support ex vivo culture of in vivo‐induced premalignant lung lesions Physiological Reports biomaterials hydrogels lung cancer precision‐cut lung slice premalignant lesion |
| title | Hydrogel‐embedded precision‐cut lung slices support ex vivo culture of in vivo‐induced premalignant lung lesions |
| title_full | Hydrogel‐embedded precision‐cut lung slices support ex vivo culture of in vivo‐induced premalignant lung lesions |
| title_fullStr | Hydrogel‐embedded precision‐cut lung slices support ex vivo culture of in vivo‐induced premalignant lung lesions |
| title_full_unstemmed | Hydrogel‐embedded precision‐cut lung slices support ex vivo culture of in vivo‐induced premalignant lung lesions |
| title_short | Hydrogel‐embedded precision‐cut lung slices support ex vivo culture of in vivo‐induced premalignant lung lesions |
| title_sort | hydrogel embedded precision cut lung slices support ex vivo culture of in vivo induced premalignant lung lesions |
| topic | biomaterials hydrogels lung cancer precision‐cut lung slice premalignant lesion |
| url | https://doi.org/10.14814/phy2.70459 |
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