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Kostadinova R, Ströbel S, Chen L, Fiaschetti-Egli K, Gadient J, Pawlowska A, Petitjean L, Bieri M, Thoma E, Petitjean M. Digital pathology with artificial intelligence analysis provides insight to the efficacy of anti-fibrotic compounds in human 3D MASH model. Sci Rep 2024; 14:5885. [PMID: 38467661 PMCID: PMC10928082 DOI: 10.1038/s41598-024-55438-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 02/23/2024] [Indexed: 03/13/2024] Open
Abstract
Metabolic dysfunction-associated steatohepatitis (MASH) is a severe liver disease characterized by lipid accumulation, inflammation and fibrosis. The development of MASH therapies has been hindered by the lack of human translational models and limitations of analysis techniques for fibrosis. The MASH three-dimensional (3D) InSight™ human liver microtissue (hLiMT) model recapitulates pathophysiological features of the disease. We established an algorithm for automated phenotypic quantification of fibrosis of Sirius Red stained histology sections of MASH hLiMTs model using a digital pathology quantitative single-fiber artificial intelligence (AI) FibroNest™ image analysis platform. The FibroNest™ algorithm for MASH hLiMTs was validated using anti-fibrotic reference compounds with different therapeutic modalities-ALK5i and anti-TGF-β antibody. The phenotypic quantification of fibrosis demonstrated that both reference compounds decreased the deposition of fibrillated collagens in alignment with effects on the secretion of pro-collagen type I/III, tissue inhibitor of metalloproteinase-1 and matrix metalloproteinase-3 and pro-fibrotic gene expression. In contrast, clinical compounds, Firsocostat and Selonsertib, alone and in combination showed strong anti-fibrotic effects on the deposition of collagen fibers, however less pronounced on the secretion of pro-fibrotic biomarkers. In summary, the phenotypic quantification of fibrosis of MASH hLiMTs combined with secretion of pro-fibrotic biomarkers and transcriptomics represents a promising drug discovery tool for assessing anti-fibrotic compounds.
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Affiliation(s)
| | - Simon Ströbel
- InSphero AG, Wagistrasse 27A, Schlieren, Switzerland
| | - Li Chen
- PharmaNest, Princeton, NJ, USA
| | | | - Jana Gadient
- InSphero AG, Wagistrasse 27A, Schlieren, Switzerland
| | | | | | - Manuela Bieri
- InSphero AG, Wagistrasse 27A, Schlieren, Switzerland
| | - Eva Thoma
- InSphero AG, Wagistrasse 27A, Schlieren, Switzerland
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Stephan T, Thoma E, Rattka M, Felbel D, Buckert D, Rottbauer W, Gonska B, Markovic S. Impact of extent of coronary artery disease and percutaneous revascularization assessed by the SYNTAX score on outcomes following transcatheter aortic valve replacement. BMC Cardiovasc Disord 2021; 21:568. [PMID: 34847875 PMCID: PMC8638523 DOI: 10.1186/s12872-021-02374-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 11/05/2021] [Indexed: 12/14/2022] Open
Abstract
Objectives The aim of the study was to analyze the impact of concomitant coronary artery disease (CAD) assessed by the SYNTAX score (SS) and periprocedural percutaneous coronary intervention (PCI) on outcomes after transcatheter aortic valve replacement (TAVR). Background Due to controversial data regarding the effect of CAD on outcomes after TAVR, proper revascularization strategies remain a matter of debate. Methods 553 patients with severe aortic stenosis undergoing TAVR were included in this study. SS was calculated for each patient at baseline and after PCI. Primary outcome was one-year all-cause mortality. Results 60.2% of patients (N = 333) exhibited CAD with a mean SS of 10.8 ± 8.8. Of those, 120 patients (36.0%) received periprocedural PCI. In the treatment group, mean SS was decreased from 14.9 ± 9.1 to 6.3 ± 6.7. Patients with concomitant CAD suffered more frequently from myocardial infarction (MI) post TAVR compared to those without CAD (2.1% vs. 0.0%; P < 0.01). In the CAD cohort, MI rates were comparable between patients with and without PCI (2.2% vs. 2.5%; P = 0.71). Regarding SS, patients with a residual SS < 8 showed significant lower rates of one-year mortality (9.0% vs. 18.2%; P = 0.016) and MACCE (16.5% vs. 32.2%; P = 0.001). Besides left bundle brunch, predictors for an increased one-year mortality were a residual SS ≥ 8 in the CAD group (OR = 3.17; P = 0.011) and a EuroSCORE ≥ 4% in the entire study population (OR = 2.18; P = 0.017). Conclusion Our results suggest that a residual SS-guided revascularization strategy may improve prognosis after TAVR in patients with concomitant CAD. PCI aiming for a residual SS < 8 was associated with improved one-year clinical outcomes. Supplementary Information The online version contains supplementary material available at 10.1186/s12872-021-02374-y.
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Affiliation(s)
- Tilman Stephan
- Department of Cardiology, Angiology, Pneumology and Internal Intensive Care, University Hospital Ulm, University of Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Eva Thoma
- Department of Cardiology, Angiology, Pneumology and Internal Intensive Care, University Hospital Ulm, University of Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Manuel Rattka
- Department of Cardiology, Angiology, Pneumology and Internal Intensive Care, University Hospital Ulm, University of Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Dominik Felbel
- Department of Cardiology, Angiology, Pneumology and Internal Intensive Care, University Hospital Ulm, University of Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Dominik Buckert
- Department of Cardiology, Angiology, Pneumology and Internal Intensive Care, University Hospital Ulm, University of Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Wolfgang Rottbauer
- Department of Cardiology, Angiology, Pneumology and Internal Intensive Care, University Hospital Ulm, University of Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Birgid Gonska
- Department of Cardiology, Angiology, Pneumology and Internal Intensive Care, University Hospital Ulm, University of Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Sinisa Markovic
- Department of Cardiology, Angiology, Pneumology and Internal Intensive Care, University Hospital Ulm, University of Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany.
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Ströbel S, Kostadinova R, Fiaschetti-Egli K, Rupp J, Bieri M, Pawlowska A, Busler D, Hofstetter T, Sanchez K, Grepper S, Thoma E. A 3D primary human cell-based in vitro model of non-alcoholic steatohepatitis for efficacy testing of clinical drug candidates. Sci Rep 2021; 11:22765. [PMID: 34815444 PMCID: PMC8611054 DOI: 10.1038/s41598-021-01951-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 11/03/2021] [Indexed: 02/06/2023] Open
Abstract
Non-alcoholic steatohepatitis (NASH) is a progressive and severe liver disease, characterized by lipid accumulation, inflammation, and downstream fibrosis. Despite its increasing prevalence, there is no approved treatment yet available for patients. This has been at least partially due to the lack of predictive preclinical models for studying this complex disease. Here, we present a 3D in vitro microtissue model that uses spheroidal, scaffold free co-culture of primary human hepatocytes, Kupffer cells, liver endothelial cells and hepatic stellate cells. Upon exposure to defined and clinically relevant lipotoxic and inflammatory stimuli, these microtissues develop key pathophysiological features of NASH within 10 days, including an increase of intracellular triglyceride content and lipids, and release of pro-inflammatory cytokines. Furthermore, fibrosis was evident through release of procollagen type I, and increased deposition of extracellular collagen fibers. Whole transcriptome analysis revealed changes in the regulation of pathways associated with NASH, such as lipid metabolism, inflammation and collagen processing. Importantly, treatment with anti-NASH drug candidates (Selonsertib and Firsocostat) decreased the measured specific disease parameter, in accordance with clinical observations. These drug treatments also significantly changed the gene expression patterns of the microtissues, thus providing mechanisms of action and revealing therapeutic potential. In summary, this human NASH model represents a promising drug discovery tool for understanding the underlying complex mechanisms in NASH, evaluating efficacy of anti-NASH drug candidates and identifying new approaches for therapeutic interventions.
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Affiliation(s)
- Simon Ströbel
- InSphero AG, Wagistrasse 27A, 8952 Schlieren, CH, Switzerland.
| | | | | | - Jana Rupp
- InSphero AG, Wagistrasse 27A, 8952 Schlieren, CH Switzerland
| | - Manuela Bieri
- InSphero AG, Wagistrasse 27A, 8952 Schlieren, CH Switzerland
| | | | - Donna Busler
- InSphero AG, Wagistrasse 27A, 8952 Schlieren, CH Switzerland
| | | | | | - Sue Grepper
- InSphero AG, Wagistrasse 27A, 8952 Schlieren, CH Switzerland
| | - Eva Thoma
- InSphero AG, Wagistrasse 27A, 8952 Schlieren, CH Switzerland
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Asmuth J, Diel F, Thoma E. [Experiences with certification of practices]. Chirurg 2007; Suppl:229-230. [PMID: 18224762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Affiliation(s)
- J Asmuth
- KBV-Dezernat 2, Abt. QM, Berlin.
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Wagner T, Meierjohann S, Reiss C, Federov L, Kraeussling M, Thoma E, Kneitz B, Schartl M. STAT3 and BMP-receptor 1a functionally interact in different stem cell types. J Stem Cells Regen Med 2007; 2:172. [PMID: 24692980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- Tu Wagner
- Biozentrum, Physiological Chemistry I, University of Wuerzburg , am Hubland 1, 97074 Wuerzburg, Germany
| | - S Meierjohann
- Biozentrum, Physiological Chemistry I, University of Wuerzburg , am Hubland 1, 97074 Wuerzburg, Germany
| | - C Reiss
- Biozentrum, Physiological Chemistry I, University of Wuerzburg , am Hubland 1, 97074 Wuerzburg, Germany
| | - L Federov
- Biozentrum, Physiological Chemistry I, University of Wuerzburg , am Hubland 1, 97074 Wuerzburg, Germany
| | - M Kraeussling
- Biozentrum, Physiological Chemistry I, University of Wuerzburg , am Hubland 1, 97074 Wuerzburg, Germany
| | - E Thoma
- Biozentrum, Physiological Chemistry I, University of Wuerzburg , am Hubland 1, 97074 Wuerzburg, Germany
| | - B Kneitz
- Biozentrum, Physiological Chemistry I, University of Wuerzburg , am Hubland 1, 97074 Wuerzburg, Germany
| | - M Schartl
- Biozentrum, Physiological Chemistry I, University of Wuerzburg , am Hubland 1, 97074 Wuerzburg, Germany
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Thoma E, Wagner T, Schartl M. Inducible differentiation of medakafish spermatogonial stem cells to various somatic cell types. J Stem Cells Regen Med 2007; 2:124. [PMID: 24692944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- E Thoma
- Physiological Chemistry I, Biozentrum, University of Wuerzburg , Am Hubland, 97074 Wuerzburg, Germany
| | - Tu Wagner
- Physiological Chemistry I, Biozentrum, University of Wuerzburg , Am Hubland, 97074 Wuerzburg, Germany
| | - M Schartl
- Physiological Chemistry I, Biozentrum, University of Wuerzburg , Am Hubland, 97074 Wuerzburg, Germany
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Thoma E, Ruzicka T, Donhauser G, Albrecht T, Braun-Falco O. [Clinical aspects and therapy of Bureau-Barrière syndrome. Observations of 17 cases with review of the literature]. Hautarzt 1993; 44:5-13. [PMID: 8436512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Bureau-Barrière syndrome can affect various organ systems. It is defined by the triad: painless ulcers at mechanically irritated and hyperkeratotic plantar areas of the feet, sensitive polyneuropathy of the lower legs and osteolysis in the forefoot area. The condition mainly affects middle-aged men suffering from alcoholism, liver disease, obesity or metabolic disorders such as diabetes mellitus. Successful treatment of the Bureau-Barrière syndrome requires an interdisciplinary approach.
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Affiliation(s)
- E Thoma
- Dermatologische Klinik und Poliklinik, Ludwig-Maximilians-Universität München
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Krähn G, Thoma E, Peter RU. [Two superficially spreading malignant melanomas on nevus spilus]. Hautarzt 1992; 43:32-4. [PMID: 1612906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A case of a 49-year-old patient with two superficial spreading melanomas arising from a naevus spilus is presented. Although opinions differ on the potential for malignant transformation in naevi spili, they should be carefully watched, and if changes are found these lesions should be subjected to histopathologic examination.
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Affiliation(s)
- G Krähn
- Dermatologische Klinik und Poliklinik, Ludwig-Maximilians-Universität München
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Titzmann T, Peter RU, Thoma E, Ruzicka T. [Pigmented basalioma as pseudomelanoma of the breast]. Hautarzt 1991; 42:459-60. [PMID: 1938399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We report on a patient with a pigmented basal cell carcinoma of the nipple. Despite its rarity, it is important to know about this tumour because it is so easy to confuse it with malignant melanoma.
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Affiliation(s)
- T Titzmann
- Dermatologische Klinik und Poliklinik, Ludwig-Maximilians-Universität München
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Thoma H, Thoma E. [Analgesic therapy in the orthopedic office. Experiences with Lonarid N]. ZFA (Stuttgart) 1980; 56:1370-2. [PMID: 7424143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Pitchumoni CS, Thoma E, Katz D. Changing concepts in the differential diagnosis of upper gastrointestinal bleeding based on endoscopic evaluation. J Assoc Physicians India 1974; 22:521-6. [PMID: 4548062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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