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Galactosidase-catalyzed fluorescence amplification method (GAFAM): sensitive fluorescent immunohistochemistry using novel fluorogenic β-galactosidase substrates and its application in multiplex immunostaining. Histochem Cell Biol 2023; 159:233-246. [PMID: 36374321 DOI: 10.1007/s00418-022-02162-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/16/2022] [Indexed: 11/16/2022]
Abstract
Multiplex immunohistochemistry/multiplex immunofluorescence (mIHC/mIF) enables the simultaneous detection of multiple markers in a single tissue section by visualizing the markers in different colors. Currently, tyramide signal amplification (TSA) is the most commonly used method because it is heat resistant to multiplexing. SPiDER-βGal (6'-(diethylamino)-4'-(fluoromethyl)spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3'-yl β-D-galactopyranoside), a novel fluorogenic substrate of β-galactosidase (β-gal) was reported recently. Its properties are favorable for application in sensitive mIF based on quinone methide chemistry. Combining SPiDER-βGal with its related substrates, a novel, sensitive fluorescent IHC method for formalin-fixed paraffin-embedded (FFPE) sections was developed, named the galactosidase-catalyzed fluorescence amplification method (GAFAM). Evaluation of GAFAM indicated the following characteristics: (1) the entire GAFAM procedure was complete within a few hours; (2) the optimal working concentration of the substrates was 20 μM; (3) the fluorescent product was heat resistant; (4) the GAFAM exhibited sensitivity comparable with that of TSA, which was higher than that of conventional IF; and (5) the GAFAM was applicable to mIF and multispectral imaging. GAFAM is expected to be applicable to IF (or mIF in combination with TSA), and is a promising tool for facilitating morphological research in various fields of life science.
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2
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Chiriboga L, Callis GM, Wang Y, Chlipala E. Guide for collecting and reporting metadata on protocol variables and parameters from slide-based histotechnology assays to enhance reproducibility. J Histotechnol 2022; 45:132-147. [DOI: 10.1080/01478885.2022.2134022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Luis Chiriboga
- Department of Pathology, NYU Grossman School of Medicine, New York, NY, USA
- NYULH Center for Biospecimen Research and Development, New York, NY, USA
| | | | - Yongfu Wang
- Stowers Institute for Medical Research, Kansas, MO, USA
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3
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Adamo A, Bruno A, Menallo G, Francipane MG, Fazzari M, Pirrone R, Ardizzone E, Wagner WR, D'Amore A. Blood Vessel Detection Algorithm for Tissue Engineering and Quantitative Histology. Ann Biomed Eng 2022; 50:387-400. [PMID: 35171393 PMCID: PMC8917109 DOI: 10.1007/s10439-022-02923-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 01/17/2022] [Indexed: 11/29/2022]
Abstract
Immunohistochemistry for vascular network analysis plays a fundamental role in basic science, translational research and clinical practice. However, identifying vascularization in histological tissue images is time consuming and markedly depends on the operator’s experience. In this study, we present “blood vessel detection—BVD”, an automatic algorithm for quantitative analysis of blood vessels in immunohistochemical images. BVD is based on extraction and analysis of low-level image features and spatial filtering techniques, which do not require a training phase. BVD algorithm performance was comparatively evaluated on histological sections from three different in vivo experiments. Collectively, 173 independent images were analyzed, and the algorithm's results were compared to those obtained by human operators. The developed BVD algorithm proved to be a robust and versatile tool, being able to quantify number, area, and spatial distribution of blood vessels within all three considered histologic datasets. BVD is provided as an open-source application working on different operating systems. BVD is supported by a user-friendly graphical interface designed to facilitate large-scale analysis.
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Affiliation(s)
- A Adamo
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University of Palermo, 90100, Palermo, Italy.,McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, 15219, USA.,Fondazione Ri.MED, 90133, Palermo, Italy
| | - A Bruno
- Department of Computing and Informatics in the Faculty of Science and Technology, Bournemouth University, Poole, BH12 5BB, UK
| | - G Menallo
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, 15219, USA.,Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA, 01605, USA
| | - M G Francipane
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, 15219, USA.,Fondazione Ri.MED, 90133, Palermo, Italy.,Department of Pathology, University of Pittsburgh, Pittsburgh, PA, 15206, USA
| | - M Fazzari
- Department of Pharmacology & Chemical Biology, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - R Pirrone
- Department of Industrial and Digital Innovation, University of Palermo, 90100, Palermo, Italy
| | - E Ardizzone
- Department of Industrial and Digital Innovation, University of Palermo, 90100, Palermo, Italy
| | - W R Wagner
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, 15219, USA.,Department of Surgery, University of Pittsburgh, Pittsburgh, PA, 15219, USA
| | - A D'Amore
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, 15219, USA. .,Fondazione Ri.MED, 90133, Palermo, Italy. .,Department of Surgery, University of Pittsburgh, Pittsburgh, PA, 15219, USA. .,Department of Surgery and Bioengineering, McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Pittsburgh, PA, 15219, USA.
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4
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Cleypool CGJ, Brinkman DJ, Mackaaij C, Nikkels PGJ, Nolte MA, Luyer MD, de Jonge WJ, Bleys RLAW. Age-Related Variation in Sympathetic Nerve Distribution in the Human Spleen. Front Neurosci 2021; 15:726825. [PMID: 34720859 PMCID: PMC8552063 DOI: 10.3389/fnins.2021.726825] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 09/24/2021] [Indexed: 11/25/2022] Open
Abstract
Introduction: The cholinergic anti-inflammatory pathway (CAIP) has been proposed as an efferent neural pathway dampening the systemic inflammatory response via the spleen. The CAIP activates the splenic neural plexus and a subsequent series of intrasplenic events, which at least require a close association between sympathetic nerves and T cells. Knowledge on this pathway has mostly been derived from rodent studies and only scarce information is available on the innervation of the human spleen. This study aimed to investigate the sympathetic innervation of different structures of the human spleen, the topographical association of nerves with T cells and age-related variations in nerve distribution. Materials and Methods: Spleen samples were retrieved from a diagnostic archive and were allocated to three age groups; neonates, 10–25 and 25–70 years of age. Sympathetic nerves and T cells were identified by immunohistochemistry for tyrosine hydroxylase (TH) and the membrane marker CD3, respectively. The overall presence of sympathetic nerves and T cells was semi-automatically quantified and expressed as total area percentage. A predefined scoring system was used to analyze the distribution of nerves within different splenic structures. Results: Sympathetic nerves were observed in all spleens and their number appeared to slightly increase from birth to adulthood and to decrease afterward. Irrespective to age, more than halve of the periarteriolar lymphatic sheaths (PALSs) contained sympathetic nerves in close association with T cells. Furthermore, discrete sympathetic nerves were observed in the capsule, trabeculae and red pulp and comparable to the total amount of sympathetic nerves, showed a tendency to decrease with age. No correlation was found between the number of T cells and sympathetic nerves. Conclusion: The presence of discrete sympathetic nerves in the splenic parenchyma, capsule and trabecular of human spleens could suggest a role in functions other than vasoregulation. In the PALS, sympathetic nerves were observed to be in proximity to T cells and is suggestive for the existence of the CAIP in humans. Since sympathetic nerve distribution shows interspecies and age-related variation, and our general understanding of the relative and spatial contribution of splenic innervation in immune regulation is incomplete, it remains difficult to estimate the anti-inflammatory potential of targeting splenic nerves in patients.
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Affiliation(s)
- Cindy G J Cleypool
- Division of Surgical Specialties, Department of Anatomy, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - David J Brinkman
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, Netherlands.,Department of Surgery, Catharina Hospital, Eindhoven, Netherlands
| | - Claire Mackaaij
- Division of Surgical Specialties, Department of Anatomy, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
| | - Peter G J Nikkels
- Division of Laboratories, Pharmacy, Biomedical Genetics and Pathology, Department of Pathology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Martijn A Nolte
- Department of Molecular and Cellular Hemostasis, Sanquin Research and Landsteiner Laboratory, Amsterdam, Netherlands
| | - Misha D Luyer
- Department of Surgery, Catharina Hospital, Eindhoven, Netherlands
| | - Wouter J de Jonge
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, Netherlands.,Department of Surgery, University Hospital Bonn, Bonn, Germany
| | - Ronald L A W Bleys
- Division of Surgical Specialties, Department of Anatomy, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
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5
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Paulsen JD, Zeck B, Sun K, Simoes C, Theise ND, Chiriboga L. Keratin 19 and mesenchymal markers for evaluation of epithelial-mesenchymal transition and stem cell niche components in primary biliary cholangitis by sequential elution-stripping multiplex immunohistochemistry. J Histotechnol 2020; 43:163-173. [PMID: 32998669 DOI: 10.1080/01478885.2020.1807228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Multiplexed immunohistochemical techniques give insight into contextual cellular relationships by offering the ability to collect cell-specific data with spatial information from formalin-fixed, paraffin-embedded tissue sections. We established an automated sequential elution-stripping multiplex immunohistochemical assay to address two controversial scientific questions in the field of hepatopathology: 1) whether epithelial-to-mesenchymal transition or mesenchymal-to-epithelial transition occurs during liver injury and repair of a chronic liver disease and 2) if there is a stromal:epithelial relationship along the canals of Hering that would support the concept of this biliary structure being a stem/progenitor cell niche. Our 4-plex assay includes both epithelial and mesenchymal clinical immunohistochemical markers and was performed on clinical human liver specimens in patients with primary biliary cholangitis. The assay demonstrated that in each specimen, co-expression of epithelial and mesenchymal markers was observed in extraportal cholangiocytes. In regard to possible mesenchymal components in a stem cell niche, 82.3% ± 5.5% of extraportal cholangiocytes were intimately associated with a vimentin-positive cell. Co-expression of epithelial and mesenchymal markers by extraportal cholangiocytes is evidence for epithelial to mesenchymal transition in primary biliary cholangitis. Vimentin-positive stromal cells are frequently juxtaposed to extraportal cholangiocytes, supporting an epithelial:mesenchymal relationship within the hepatobiliary stem cell niche. Our automated sequential elution-stripping multiplex immunohistochemical assay is a cost-effective multiplexing technique that can be readily applied to a small series of clinical pathology samples in order to answer scientific questions involving cell:cell relationships and cellular antibody expression.
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Affiliation(s)
- John David Paulsen
- Department of Pathology, NYU Langone Health , New York, USA.,Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai/The Mount Sinai Hospital , New York, USA
| | - Briana Zeck
- NYU Langone Health, Center for Biospecimen Research and Development , New York, USA
| | - Katherine Sun
- Department of Pathology, NYU Langone Health , New York, USA
| | - Camila Simoes
- Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai/The Mount Sinai Hospital , New York, USA
| | - Neil D Theise
- Department of Pathology, NYU Langone Health , New York, USA
| | - Luis Chiriboga
- Department of Pathology, NYU Langone Health , New York, USA.,NYU Langone Health, Center for Biospecimen Research and Development , New York, USA
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6
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Abstract
The premise of this book is the importance of the tumor microenvironment (TME). Until recently, most research on and clinical attention to cancer biology, diagnosis, and prognosis were focused on the malignant (or premalignant) cellular compartment that could be readily appreciated using standard morphology-based imaging.
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7
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Liu X, Gao Y, Chandrawati R, Hosta-Rigau L. Therapeutic applications of multifunctional nanozymes. NANOSCALE 2019; 11:21046-21060. [PMID: 31686088 DOI: 10.1039/c9nr06596b] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Nanozymes, which are functional nanomaterials with enzyme-like characteristics, have emerged as a highly-stable and low-cost alternative to natural enzymes. Apart from overcoming the limitations of natural enzymes (e.g., high cost, low stability or complex production), nanozymes are also equipped with the unique intrinsic properties of nanomaterials such as magnetism, luminescence or near infrared absorbance. Therefore, the development of nanozymes exhibiting additional functions to their catalytic activity has opened up new opportunities and applications within the biomedical field. To highlight the progress in the field, this review summarizes the novel applications of multifunctional nanozymes in various biomedical-related fields ranging from cancer diagnosis, cancer and antibacterial therapy to regenerative medicine. Future challenges and perspectives that may advance nanozyme research are also discussed at the end of the review.
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Affiliation(s)
- Xiaoli Liu
- Department of Health Technology, Centre for Nanomedicine and Theranostics, DTU Health Tech, Technical University of Denmark, 2800 Lyngby, Denmark.
| | - Yuan Gao
- School of Chemical Engineering and Australian Centre for Nanomedicine, The University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia
| | - Rona Chandrawati
- School of Chemical Engineering and Australian Centre for Nanomedicine, The University of New South Wales (UNSW Sydney), Sydney, NSW 2052, Australia
| | - Leticia Hosta-Rigau
- Department of Health Technology, Centre for Nanomedicine and Theranostics, DTU Health Tech, Technical University of Denmark, 2800 Lyngby, Denmark.
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8
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Ko JN, Jung JK, Park YI, Shin HJ, Huh J, Back S, Kim YJ, Kim JH, Go H. Multistaining Optimization for Epstein-Barr Virus-Encoded RNA In Situ Hybridization and Immunohistochemistry of Formalin-Fixed Paraffin-Embedded Tissues Using an Automated Immunostainer. J Pathol Transl Med 2019; 53:317-326. [PMID: 31455058 PMCID: PMC6755655 DOI: 10.4132/jptm.2019.08.06] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 08/06/2019] [Indexed: 11/29/2022] Open
Abstract
Background Single staining is commonly performed for practical pathologic diagnoses. However, this method is limited in its ability to specify cellular morphology and immunophenotype and often requires consumption of limited tissue. This study aimed to describe an optimized protocol for multiple in situ hybridization (ISH) and immunohistochemistry (IHC). Methods The quality of multistaining was evaluated by carefully changing each step of ISH and IHC in an angioimmunoblastic T-cell lymphoma (AITL) case on a Ventana BenchMark XT automated immunostainer. The optimized protocols were also performed using another immunostainer and in 15 cases of five Epstein-Barr virus (EBV)–associated malignancies using formalin-fixed paraffin-embedded tissue. Results The quality of various ISH-IHC staining protocols was semi-quantitatively evaluated. The best EBV-encoded RNA (EBER)-ISH/double IHC staining quality, equivalent to single staining, was obtained using the following considerations: initial EBER-ISH application, use of protease and antigen retrieval reagent (cell conditioning 1 [CC1] treatment time was minimized due to impact on tissue quality), additional baking/ deparaffinization not needed, and reduced dilution ratio and increased reaction time for primary antibody compared with single immunostaining. Furthermore, shorter second CC1 treatment time yielded better results. Multiple staining was the best quality in another immunostainer and for different types of EBV-associated malignancies when it was performed in the same manner as for the Ventana BenchMark XT as determined for AITL. Conclusions EBER-ISH and double IHC could be easily used in clinical practice with currently available automated immunostainers and adjustment of reagent treatment time, dilution ratio, and antibody reaction time.
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Affiliation(s)
- Jae Nam Ko
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jin Kyoung Jung
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Yun Ik Park
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hwa Jeong Shin
- Department of Research Support Team, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jooryung Huh
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sol Back
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Yu Jin Kim
- Department of Research Support Team, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jae Ho Kim
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Heounjeong Go
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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9
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Rakaee M, Busund LTR, Jamaly S, Paulsen EE, Richardsen E, Andersen S, Al-Saad S, Bremnes RM, Donnem T, Kilvaer TK. Prognostic Value of Macrophage Phenotypes in Resectable Non-Small Cell Lung Cancer Assessed by Multiplex Immunohistochemistry. Neoplasia 2019; 21:282-293. [PMID: 30743162 PMCID: PMC6369140 DOI: 10.1016/j.neo.2019.01.005] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 01/14/2019] [Accepted: 01/17/2019] [Indexed: 12/14/2022] Open
Abstract
Macrophages are important inflammatory cells that regulate innate and adaptive immunity in cancer. Tumor-associated macrophages (TAMs) are thought to differentiate into two main phenotypes: proinflammatory M1 and protumorigenic M2. Currently, the prognostic impact of TAMs and their M1 and M2 phenotypes is unclear in non–small cell cancer (NSCLC). The present study was set up to evaluate an approach for identifying common M1 and M2 macrophage markers and explore their clinical significance in NSCLC. Using multiplex chromogenic immunohistochemistry, tissue microarrays of 553 primary tumors and 143 paired metastatic lymph nodes of NSCLC specimens were stained to detect various putative macrophage phenotypes: M1 (HLA-DR/CD68), M2 (CD163/CD68), M2 (CD204/CD68), and pan-macrophage (CD68/CK). Correlation analyses were performed to examine the relationship between TAMs and adaptive/innate immune infiltrates. HLA-DR+/CD68+M1 TAM level significantly decreased from pathological stage I to III. In a compartment-specific correlation analysis, moderate to strong correlations were observed between both TAM subsets (M1 and M2) with CD3-, CD8-, CD4-, and CD45RO-positive immune cells. Survival analyses, in both stromal and intratumoral compartments, revealed that high levels of HLA-DR+/CD68+M1 (stroma, hazard ratio [HR] = 0.73, P = .03; intratumor, HR = 0.7, P = .04), CD204+M2 (stroma, HR = 0.7, P = .02; intratumor, HR = 0.6, P = .004), and CD68 (stroma, HR = 0.69, P = .02; intratumor, HR = 0.73, P = .04) infiltration were independently associated with improved NSCLC-specific survival. In lymph nodes, the intratumoral level of HLA-DR+/CD68+M1 was an independent positive prognostic indicator (Cox model, HR = 0.38, P = .001). In conclusion, high levels of M1, CD204+M2, and CD68 macrophages are independent prognosticators of prolonged survival in NSCLC.
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Affiliation(s)
- Mehrdad Rakaee
- Department of Medical Biology, UiT The Arctic University of Norway, Tromsø, Norway, 9019.
| | - Lill-Tove Rasmussen Busund
- Department of Medical Biology, UiT The Arctic University of Norway, Tromsø, Norway, 9019; Department of Clinical Pathology, University Hospital of North Norway, Tromsø, Norway, 9019.
| | - Simin Jamaly
- Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway, 9019.
| | - Erna-Elise Paulsen
- Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway, 9019; Department of Oncology, University Hospital of North Norway, Tromsø, Norway, 9019.
| | - Elin Richardsen
- Department of Medical Biology, UiT The Arctic University of Norway, Tromsø, Norway, 9019; Department of Clinical Pathology, University Hospital of North Norway, Tromsø, Norway, 9019.
| | - Sigve Andersen
- Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway, 9019; Department of Oncology, University Hospital of North Norway, Tromsø, Norway, 9019.
| | - Samer Al-Saad
- Department of Medical Biology, UiT The Arctic University of Norway, Tromsø, Norway, 9019; Department of Clinical Pathology, University Hospital of North Norway, Tromsø, Norway, 9019.
| | - Roy M Bremnes
- Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway, 9019; Department of Oncology, University Hospital of North Norway, Tromsø, Norway, 9019.
| | - Tom Donnem
- Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway, 9019; Department of Oncology, University Hospital of North Norway, Tromsø, Norway, 9019.
| | - Thomas K Kilvaer
- Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway, 9019; Department of Oncology, University Hospital of North Norway, Tromsø, Norway, 9019.
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10
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Kinchen J, Chen HH, Parikh K, Antanaviciute A, Jagielowicz M, Fawkner-Corbett D, Ashley N, Cubitt L, Mellado-Gomez E, Attar M, Sharma E, Wills Q, Bowden R, Richter FC, Ahern D, Puri KD, Henault J, Gervais F, Koohy H, Simmons A. Structural Remodeling of the Human Colonic Mesenchyme in Inflammatory Bowel Disease. Cell 2018; 175:372-386.e17. [PMID: 30270042 PMCID: PMC6176871 DOI: 10.1016/j.cell.2018.08.067] [Citation(s) in RCA: 395] [Impact Index Per Article: 65.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 06/08/2018] [Accepted: 08/29/2018] [Indexed: 11/10/2022]
Abstract
Intestinal mesenchymal cells play essential roles in epithelial homeostasis, matrix remodeling, immunity, and inflammation. But the extent of heterogeneity within the colonic mesenchyme in these processes remains unknown. Using unbiased single-cell profiling of over 16,500 colonic mesenchymal cells, we reveal four subsets of fibroblasts expressing divergent transcriptional regulators and functional pathways, in addition to pericytes and myofibroblasts. We identified a niche population located in proximity to epithelial crypts expressing SOX6, F3 (CD142), and WNT genes essential for colonic epithelial stem cell function. In colitis, we observed dysregulation of this niche and emergence of an activated mesenchymal population. This subset expressed TNF superfamily member 14 (TNFSF14), fibroblastic reticular cell-associated genes, IL-33, and Lysyl oxidases. Further, it induced factors that impaired epithelial proliferation and maturation and contributed to oxidative stress and disease severity in vivo. Our work defines how the colonic mesenchyme remodels to fuel inflammation and barrier dysfunction in IBD. Single-cell census of the colonic mesenchyme reveals unexpected heterogeneity Identification of the colonic crypt niche mesenchymal cell expressing SOX6 and Wnts Definition of fundamental aspects of mesenchymal remodeling in colitis Analysis of colitis-associated mesenchymal cells reveals pathogenicity drivers
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Affiliation(s)
- James Kinchen
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DS, UK; Translational Gastroenterology Unit, John Radcliffe Hospital, Oxford, UK
| | - Hannah H Chen
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DS, UK; Translational Gastroenterology Unit, John Radcliffe Hospital, Oxford, UK
| | - Kaushal Parikh
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DS, UK; Translational Gastroenterology Unit, John Radcliffe Hospital, Oxford, UK
| | - Agne Antanaviciute
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DS, UK; Translational Gastroenterology Unit, John Radcliffe Hospital, Oxford, UK; MRC WIMM Centre For Computational Biology, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DS, UK
| | - Marta Jagielowicz
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DS, UK; Translational Gastroenterology Unit, John Radcliffe Hospital, Oxford, UK
| | - David Fawkner-Corbett
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DS, UK; Translational Gastroenterology Unit, John Radcliffe Hospital, Oxford, UK
| | - Neil Ashley
- Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DS, UK
| | - Laura Cubitt
- Wellcome Trust Centre for Human Genetics, University of Oxford, Headington, Oxford OX3 7BN, UK
| | - Esther Mellado-Gomez
- Wellcome Trust Centre for Human Genetics, University of Oxford, Headington, Oxford OX3 7BN, UK
| | - Moustafa Attar
- Wellcome Trust Centre for Human Genetics, University of Oxford, Headington, Oxford OX3 7BN, UK
| | - Eshita Sharma
- Wellcome Trust Centre for Human Genetics, University of Oxford, Headington, Oxford OX3 7BN, UK
| | - Quin Wills
- Novo Nordisk Research Centre Oxford, Oxford, UK
| | - Rory Bowden
- Wellcome Trust Centre for Human Genetics, University of Oxford, Headington, Oxford OX3 7BN, UK
| | - Felix C Richter
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | - David Ahern
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | | | - Jill Henault
- Translational Development, Celgene Corporation, Cambridge, MA, USA
| | - Francois Gervais
- Translational Development, Celgene Corporation, Cambridge, MA, USA
| | - Hashem Koohy
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DS, UK; MRC WIMM Centre For Computational Biology, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DS, UK
| | - Alison Simmons
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DS, UK; Translational Gastroenterology Unit, John Radcliffe Hospital, Oxford, UK.
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11
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Im H, Pathania D, McFarland PJ, Sohani AR, Degani I, Allen M, Coble B, Kilcoyne A, Hong S, Rohrer L, Abramson JS, Dryden-Peterson S, Fexon L, Pivovarov M, Chabner B, Lee H, Castro CM, Weissleder R. Design and clinical validation of a point-of-care device for the diagnosis of lymphoma via contrast-enhanced microholography and machine learning. Nat Biomed Eng 2018; 2:666-674. [PMID: 30555750 PMCID: PMC6291220 DOI: 10.1038/s41551-018-0265-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 06/15/2018] [Indexed: 11/21/2022]
Abstract
The identification of patients with aggressive cancer who require immediate therapy is a health challenge in low-income and middle-income countries. Limited pathology resources, high healthcare costs and large-case loads call for the development of advanced standalone diagnostics. Here, we report and validate an automated, low-cost point-of-care device for the molecular diagnosis of aggressive lymphomas. The device uses contrast-enhanced microholography and a deep-learning algorithm to directly analyse percutaneously obtained fine-needle aspirates. We show the feasibility and high accuracy of the device in cells, as well as the prospective validation of the results in 40 patients clinically referred for image-guided aspiration of nodal mass lesions suspicious for lymphoma. Automated analysis of human samples with the portable device should allow for the accurate classification of patients with benign and malignant adenopathy.
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Affiliation(s)
- Hyungsoon Im
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital, Boston, MA, USA
| | - Divya Pathania
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
| | - Philip J McFarland
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
| | - Aliyah R Sohani
- Department of Pathology, Massachusetts General Hospital, Boston, MA, USA
| | - Ismail Degani
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Matthew Allen
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
| | - Benjamin Coble
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
- Department of Engineering and Management, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Aoife Kilcoyne
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital, Boston, MA, USA
| | - Seonki Hong
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
| | - Lucas Rohrer
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
- Department of Health Sciences, Northeastern University, Boston, MA, USA
| | | | - Scott Dryden-Peterson
- Botswana Harvard AIDS Institute, Gaborone, Botswana
- Division of Infectious Diseases, Brigham and Women's Hospital, Boston, MA, USA
- Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Lioubov Fexon
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
| | - Misha Pivovarov
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital, Boston, MA, USA
| | - Bruce Chabner
- Massachusetts General Hospital Cancer Center, Boston, MA, USA
| | - Hakho Lee
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital, Boston, MA, USA
| | - Cesar M Castro
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA.
- Massachusetts General Hospital Cancer Center, Boston, MA, USA.
| | - Ralph Weissleder
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA.
- Department of Radiology, Massachusetts General Hospital, Boston, MA, USA.
- Department of Systems Biology, Harvard Medical School, Boston, MA, USA.
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12
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In Situ Hybridization and Double Immunohistochemistry for the Detection of VEGF-A mRNA and CD34/Collagen IV Proteins in Renal Transplant Biopsies. Methods Mol Biol 2017. [PMID: 29076076 DOI: 10.1007/7651_2017_86] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Quantitative metrics on the tissue distribution of different cell phenotypes, extracellular matrix components, and signaling/cell cycle markers hold the promise for the advent of new-generation tissue-based predictive/prognostic biomarkers in clinical diagnostics. The workflow of this approach is composed of three major phases: (1) detection of multiple molecular targets on a single histologic section, (2) image acquisition, and (3) digital image processing and analysis. Here, we present the most prevalent current alternatives for step (1) and describe a three-plex staining and image acquisition platform that captures the spatial distribution of macromolecules from two different species.
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13
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Ruigrok MJR, Maggan N, Willaert D, Frijlink HW, Melgert BN, Olinga P, Hinrichs WLJ. siRNA-Mediated RNA Interference in Precision-Cut Tissue Slices Prepared from Mouse Lung and Kidney. AAPS JOURNAL 2017; 19:1855-1863. [PMID: 28895093 DOI: 10.1208/s12248-017-0136-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 08/17/2017] [Indexed: 02/06/2023]
Abstract
Small interfering RNA (siRNA)-mediated RNAi interference (RNAi) is a powerful post-transcriptional gene silencing mechanism which can be used to study the function of genes in vitro (cell cultures) and in vivo (animal models). However, there is a translational gap between these models. Hence, there is a need for novel experimental models that combine the advantages of in vitro and in vivo models (e.g., simplicity, flexibility, throughput, and representability) to study the effects of siRNA. This need may be addressed by precision-cut tissue slices (PCTS), which represent an ex vivo model that mimics the structural and functional characteristics of a whole organ. The goal of this study was to investigate whether self-deliverable siRNA (Accell siRNA) can be used in precision-cut lung slices (PCLuS) and precision-cut kidney slices (PCKS) to achieve RNAi ex vivo. PCLuS and PCKS were prepared from mouse tissue, and they were subsequently incubated up to 48 h with no siRNA (untransfected), non-targeting Accell siRNA, or Gapdh-targeting Accell siRNA. Significant Gapdh mRNA silencing was achieved (PCLuS ~ 55%; PCKS ~ 40%) without compromising the viability and morphology of slices. Fluorescence microscopy confirmed that Accell siRNA diffused into PCLuS and PCKS. Spontaneous inflammation upon incubation was observed in PCLuS and PCKS as shown by a higher mRNA expression of pro-inflammatory cytokines Il1b, Il6, and Tnfa, although Accell siRNA appeared to diminish this response in PCLuS after 24 h. In conclusion, this ex vivo transfection model can be used to evaluate the effects of siRNA in relevant biological environments.
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Affiliation(s)
- Mitchel J R Ruigrok
- Groningen Research Institute of Pharmacy, Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Nalinie Maggan
- Groningen Research Institute of Pharmacy, Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Delphine Willaert
- Groningen Research Institute of Pharmacy, Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Henderik W Frijlink
- Groningen Research Institute of Pharmacy, Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Barbro N Melgert
- Groningen Research Institute of Pharmacy, Department of Pharmacokinetics, Toxicology, and Targeting, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Peter Olinga
- Groningen Research Institute of Pharmacy, Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands.
| | - Wouter L J Hinrichs
- Groningen Research Institute of Pharmacy, Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
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14
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Covalently deposited dyes: a new chromogen paradigm that facilitates analysis of multiple biomarkers in situ. J Transl Med 2017; 97:104-113. [PMID: 27869794 DOI: 10.1038/labinvest.2016.115] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 09/06/2016] [Accepted: 10/03/2016] [Indexed: 01/10/2023] Open
Abstract
Multiplexed analysis of multiple biomarkers in a tissue sample requires use of reporter dyes with specific spectral properties that enable discrimination of signals. Conventional chromogens with broad absorbance spectra, widely used in immunohistochemistry (IHC), offer limited utility for multiplexed detection. Many dyes with narrow absorbance spectra, eg rhodamines, fluoresceins, and cyanines, potentially useful for multiplexed detection are well-characterized; however, generation of a chromogenic reagent useful for IHC analysis has not been demonstrated. Studies reported herein demonstrate utility of tyramine-chemistry for synthesis of a wide variety of new chromogenic dye conjugates useful for multiplexed in situ analysis using conventional light microscopes. The dyes, useful individually or in blends to generate new colors, provide signal sensitivity and dynamic range similar to conventional DAB chromogen, while enabling analysis of co-localized biomarkers. It is anticipated that this new paradigm will enable generation of a wide variety of new chromogens, useful for both research and clinical biomarker analysis that will benefit clinicians and patients.
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15
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Mansfield JR. Phenotyping Multiple Subsets of Immune Cells In Situ in FFPE Tissue Sections: An Overview of Methodologies. Methods Mol Biol 2017; 1546:75-99. [PMID: 27896758 DOI: 10.1007/978-1-4939-6730-8_5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The recent clinical success of new cancer immunotherapy agents and methods is driving the need to understand the role of immune cells in solid tissues, especially tumors. Immune cell phenotyping via flow cytometry, while a cornerstone of immunology, is not spatially resolved and cannot analyze immune cell subsets in situ in clinical biopsy sections or to determine their interrelationships. To address this problem, a number of methodologies have been developed in attempts to phenotype immune and other cells in images acquired from tissue sections and to assess their organization in the tumor and its microenvironment. This chapter review the staining and multiplex image analysis methods that have been developed for phenotyping immune and other cells in formalin-fixed, paraffin-embedded (FFPE) tissue sections.
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16
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Stack EC, Foukas PG, Lee PP. Multiplexed tissue biomarker imaging. J Immunother Cancer 2016; 4:9. [PMID: 26885371 PMCID: PMC4754920 DOI: 10.1186/s40425-016-0115-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 02/02/2016] [Indexed: 01/23/2023] Open
Affiliation(s)
- Edward C Stack
- Department of Life science and Technology, PerkinElmer, Hopkinton, MA USA
| | - Periklis G Foukas
- Center of Experimental Therapeutics and Ludwig Institute of Cancer Research, University Hospital of Lausanne, Lausanne, Switzerland ; Department of Pathology, University of Athens Medical School, Attikon University Hospital, Haidari, Greece
| | - Peter P Lee
- Department of Immuno-Oncology, City of Hope, Duarte, CA USA
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17
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Yuan J, Hegde PS, Clynes R, Foukas PG, Harari A, Kleen TO, Kvistborg P, Maccalli C, Maecker HT, Page DB, Robins H, Song W, Stack EC, Wang E, Whiteside TL, Zhao Y, Zwierzina H, Butterfield LH, Fox BA. Novel technologies and emerging biomarkers for personalized cancer immunotherapy. J Immunother Cancer 2016; 4:3. [PMID: 26788324 PMCID: PMC4717548 DOI: 10.1186/s40425-016-0107-3] [Citation(s) in RCA: 155] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 01/05/2016] [Indexed: 12/13/2022] Open
Abstract
The culmination of over a century’s work to understand the role of the immune system in tumor control has led to the recent advances in cancer immunotherapies that have resulted in durable clinical responses in patients with a variety of malignancies. Cancer immunotherapies are rapidly changing traditional treatment paradigms and expanding the therapeutic landscape for cancer patients. However, despite the current success of these therapies, not all patients respond to immunotherapy and even those that do often experience toxicities. Thus, there is a growing need to identify predictive and prognostic biomarkers that enhance our understanding of the mechanisms underlying the complex interactions between the immune system and cancer. Therefore, the Society for Immunotherapy of Cancer (SITC) reconvened an Immune Biomarkers Task Force to review state of the art technologies, identify current hurdlers, and make recommendations for the field. As a product of this task force, Working Group 2 (WG2), consisting of international experts from academia and industry, assembled to identify and discuss promising technologies for biomarker discovery and validation. Thus, this WG2 consensus paper will focus on the current status of emerging biomarkers for immune checkpoint blockade therapy and discuss novel technologies as well as high dimensional data analysis platforms that will be pivotal for future biomarker research. In addition, this paper will include a brief overview of the current challenges with recommendations for future biomarker discovery.
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Affiliation(s)
- Jianda Yuan
- Memorial Sloan-Kettering Cancer Center, 1275 New York Ave Box 386, New York, NY 10065 USA
| | - Priti S Hegde
- Genentech, Inc., 1 DNA Way South, San Francisco, CA 94080 USA
| | - Raphael Clynes
- Bristol-Myers Squibb, 3551 Lawrenceville Road, Princeton, NJ 08648 USA
| | - Periklis G Foukas
- Center of Experimental Therapeutics and Ludwig Institute of Cancer Research, University Hospital of Lausanne, Rue du Bugnon 21, 1011 Lausanne, Switzerland ; Department of Pathology, University of Athens Medical School, "Attikon" University Hospital, 1st Rimini St, 12462 Haidari, Greece
| | - Alexandre Harari
- Center of Experimental Therapeutics and Ludwig Institute of Cancer Research, University Hospital of Lausanne, Rue du Bugnon 21, 1011 Lausanne, Switzerland
| | - Thomas O Kleen
- Epiontis GmbH, Rudower Chaussee 29, 12489 Berlin, Germany
| | - Pia Kvistborg
- Netherlands Cancer Institute, Postbus 90203, 1006 BE Amsterdam, Netherlands
| | - Cristina Maccalli
- Italian Network for Biotherapy of Tumors (NIBIT)-Laboratory, c/o Medical Oncology and Immunotherapy, University Hospital of Siena, V.le Bracci,16, Siena, 53100 Italy
| | - Holden T Maecker
- Stanford University Medical Center, 299 Campus Drive, Stanford, CA 94303 USA
| | - David B Page
- Earle A. Chiles Research Institute, Providence Cancer Center, 4805 NE Glisan Street, Portland, OR 97213 USA
| | - Harlan Robins
- Adaptive Technologies, Inc., 1551 Eastlake Avenue East Suite 200, Seattle, WA 98102 USA
| | - Wenru Song
- AstraZeneca, One MedImmune Way, Gaithersburg, MD 20878 USA
| | | | - Ena Wang
- Sidra Medical and Research Center, PO Box 26999, Doha, Qatar
| | - Theresa L Whiteside
- University of Pittsburgh Cancer Institute, 5117 Centre Ave, Suite 1.27, Pittsburgh, PA 15213 USA
| | - Yingdong Zhao
- National Cancer Institute, 9609 Medical Center Drive, Rockville, MD 20850 USA
| | - Heinz Zwierzina
- Innsbruck Medical University, Medizinische Klinik, Anichstrasse 35, Innsbruck, A-6020 Austria
| | - Lisa H Butterfield
- Department of Medicine, Surgery and Immunology, University of Pittsburgh Cancer Institute, 5117 Centre Avenue, Pittsburgh, PA 15213 USA
| | - Bernard A Fox
- Earle A. Chiles Research Institute, Providence Cancer Center, 4805 NE Glisan Street, Portland, OR 97213 USA
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18
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Weijer R, Broekgaarden M, Krekorian M, Alles LK, van Wijk AC, Mackaaij C, Verheij J, van der Wal AC, van Gulik TM, Storm G, Heger M. Inhibition of hypoxia inducible factor 1 and topoisomerase with acriflavine sensitizes perihilar cholangiocarcinomas to photodynamic therapy. Oncotarget 2016; 7:3341-56. [PMID: 26657503 PMCID: PMC4823110 DOI: 10.18632/oncotarget.6490] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 11/16/2015] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Photodynamic therapy (PDT) induces tumor cell death by oxidative stress and hypoxia but also survival signaling through activation of hypoxia-inducible factor 1 (HIF-1). Since perihilar cholangiocarcinomas are relatively recalcitrant to PDT, the aims were to (1) determine the expression levels of HIF-1-associated proteins in human perihilar cholangiocarcinomas, (2) investigate the role of HIF-1 in PDT-treated human perihilar cholangiocarcinoma cells, and (3) determine whether HIF-1 inhibition reduces survival signaling and enhances PDT efficacy. RESULTS Increased expression of VEGF, CD105, CD31/Ki-67, and GLUT-1 was confirmed in human perihilar cholangiocarcinomas. PDT with liposome-delivered zinc phthalocyanine caused HIF-1α stabilization in SK-ChA-1 cells and increased transcription of HIF-1α downstream genes. Acriflavine was taken up by SK-ChA-1 cells and translocated to the nucleus under hypoxic conditions. Importantly, pretreatment of SK-ChA-1 cells with acriflavine enhanced PDT efficacy via inhibition of HIF-1 and topoisomerases I and II. METHODS The expression of VEGF, CD105, CD31/Ki-67, and GLUT-1 was determined by immunohistochemistry in human perihilar cholangiocarcinomas. In addition, the response of human perihilar cholangiocarcinoma (SK-ChA-1) cells to PDT with liposome-delivered zinc phthalocyanine was investigated under both normoxic and hypoxic conditions. Acriflavine, a HIF-1α/HIF-1β dimerization inhibitor and a potential dual topoisomerase I/II inhibitor, was evaluated for its adjuvant effect on PDT efficacy. CONCLUSIONS HIF-1, which is activated in human hilar cholangiocarcinomas, contributes to tumor cell survival following PDT in vitro. Combining PDT with acriflavine pretreatment improves PDT efficacy in cultured cells and therefore warrants further preclinical validation for therapy-recalcitrant perihilar cholangiocarcinomas.
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MESH Headings
- Acriflavine/pharmacology
- Anti-Infective Agents, Local/pharmacology
- Apoptosis
- Bile Duct Neoplasms/metabolism
- Bile Duct Neoplasms/pathology
- Bile Duct Neoplasms/therapy
- Blotting, Western
- Cell Proliferation
- DNA Topoisomerases, Type I/chemistry
- DNA Topoisomerases, Type I/genetics
- DNA Topoisomerases, Type I/metabolism
- Flow Cytometry
- Humans
- Hypoxia
- Hypoxia-Inducible Factor 1, alpha Subunit/antagonists & inhibitors
- Hypoxia-Inducible Factor 1, alpha Subunit/genetics
- Hypoxia-Inducible Factor 1, alpha Subunit/metabolism
- Klatskin Tumor/metabolism
- Klatskin Tumor/pathology
- Klatskin Tumor/therapy
- Photochemotherapy
- RNA, Messenger/genetics
- Radiation-Sensitizing Agents/pharmacology
- Real-Time Polymerase Chain Reaction
- Reverse Transcriptase Polymerase Chain Reaction
- Signal Transduction
- Tumor Cells, Cultured
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Affiliation(s)
- Ruud Weijer
- Department of Experimental Surgery, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
- Department of Controlled Drug Delivery, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, 7500 AE Enschede, The Netherlands
| | - Mans Broekgaarden
- Department of Experimental Surgery, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Massis Krekorian
- Department of Experimental Surgery, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Lindy K. Alles
- Department of Experimental Surgery, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Albert C. van Wijk
- Department of Experimental Surgery, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Claire Mackaaij
- Department of Pathology, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Joanne Verheij
- Department of Pathology, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Allard C. van der Wal
- Department of Pathology, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Thomas M. van Gulik
- Department of Experimental Surgery, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Gert Storm
- Department of Controlled Drug Delivery, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, 7500 AE Enschede, The Netherlands
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, University of Utrecht, 3584 CG Utrecht, The Netherlands
| | - Michal Heger
- Department of Experimental Surgery, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, University of Utrecht, 3584 CG Utrecht, The Netherlands
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19
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Immunohistochemical quantification of the cobalamin transport protein, cell surface receptor and Ki-67 in naturally occurring canine and feline malignant tumors and in adjacent normal tissues. Oncotarget 2016; 6:2331-48. [PMID: 25633912 PMCID: PMC4385855 DOI: 10.18632/oncotarget.3206] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 12/10/2015] [Indexed: 12/13/2022] Open
Abstract
Cancer cells have an obligate need for cobalamin (vitamin B12) to enable DNA synthesis necessary for cellular replication. This study quantified the immunohistochemical expression of the cobalamin transport protein (transcobalamin II; TCII), cell surface receptor (transcobalamin II-R; TCII-R) and proliferation protein (Ki-67) in naturally occurring canine and feline malignant tumors, and compared these results to expression in corresponding adjacent normal tissues. All malignant tumor tissues stained positively for TCII, TCII-R and Ki-67 proteins; expression varied both within and between tumor types. Expression of TCII, TCII-R and Ki-67 was significantly higher in malignant tumor tissues than in corresponding adjacent normal tissues in both species. There was a strong correlation between TCII and TCII-R expression, and a modest correlation between TCII-R and Ki-67 expression in both species; a modest association between TCII and Ki-67 expression was present in canine tissues only. These results demonstrate a quantifiable, synchronous up-regulation of TCII and TCII-R expression by proliferating canine and feline malignant tumors. The potential to utilize these proteins as biomarkers to identify neoplastic tissues, streamline therapeutic options, evaluate response to anti-tumor therapy and monitor for recurrent disease has important implications in the advancement of cancer management for both human and companion animal patients.
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20
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Mori H, Cardiff RD. Methods of Immunohistochemistry and Immunofluorescence: Converting Invisible to Visible. Methods Mol Biol 2016; 1458:1-12. [PMID: 27581010 DOI: 10.1007/978-1-4939-3801-8_1] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Observing changes in pathophysiological tissue samples often relies on immunohistochemical or immunofluorescence analysis. These techniques show target microanatomy by visualizing marker molecules on cells and their microenvironment. Here, we describe the "pros and cons" in each method, along with alternative procedures and the suggested imaging equipment.
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Affiliation(s)
- Hidetoshi Mori
- Center of Comparative Medicine, University of California, Davis, CA, USA
| | - Robert D Cardiff
- Center of Comparative Medicine, University of California, Davis, CA, USA.
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21
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Liu WL, Wang LW, Chen JM, Yuan JP, Xiang QM, Yang GF, Qu AP, Liu J, Li Y. Application of multispectral imaging in quantitative immunohistochemistry study of breast cancer: a comparative study. Tumour Biol 2015; 37:5013-24. [PMID: 26537585 PMCID: PMC4844643 DOI: 10.1007/s13277-015-4327-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Accepted: 10/26/2015] [Indexed: 01/08/2023] Open
Abstract
Multispectral imaging (MSI) based on imaging and spectroscopy, as relatively novel to the field of histopathology, has been used in biomedical multidisciplinary researches. We analyzed and compared the utility of multispectral (MS) versus conventional red-green-blue (RGB) images for immunohistochemistry (IHC) staining to explore the advantages of MSI in clinical-pathological diagnosis. The MS images acquired of IHC-stained membranous marker human epidermal growth factor receptor 2 (HER2), cytoplasmic marker cytokeratin5/6 (CK5/6), and nuclear marker estrogen receptor (ER) have higher resolution, stronger contrast, and more accurate segmentation than the RGB images. The total signal optical density (OD) values for each biomarker were higher in MS images than in RGB images (all P < 0.05). Moreover, receiver operator characteristic (ROC) analysis revealed that a greater area under the curve (AUC), higher sensitivity, and specificity in evaluation of HER2 gene were achieved by MS images (AUC = 0.91, 89.1 %, 83.2 %) than RGB images (AUC = 0.87, 84.5, and 81.8 %). There was no significant difference between quantitative results of RGB images and clinico-pathological characteristics (P > 0.05). However, by quantifying MS images, the total signal OD values of HER2 positive expression were correlated with lymph node status and histological grades (P = 0.02 and 0.04). Additionally, the consistency test results indicated the inter-observer agreement was more robust in MS images for HER2 (inter-class correlation coefficient (ICC) = 0.95, r s = 0.94), CK5/6 (ICC = 0.90, r s = 0.88), and ER (ICC = 0.94, r s = 0.94) (all P < 0.001) than that in RGB images for HER2 (ICC = 0.91, r s = 0.89), CK5/6 (ICC = 0.85, r s = 0.84), and ER (ICC = 0.90, r s = 0.89) (all P < 0.001). Our results suggest that the application of MS images in quantitative IHC analysis could obtain higher accuracy, reliability, and more information of protein expression in relation to clinico-pathological characteristics versus conventional RGB images. It may become an optimal IHC digital imaging system used in quantitative pathology.
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Affiliation(s)
- Wen-Lou Liu
- Department of Oncology, Zhongnan Hospital of Wuhan University, Hubei Key Laboratory of Tumor Biological Behaviors & Hubei Cancer Clinical Study Center, Wuhan, 430071, China
| | - Lin-Wei Wang
- Department of Oncology, Zhongnan Hospital of Wuhan University, Hubei Key Laboratory of Tumor Biological Behaviors & Hubei Cancer Clinical Study Center, Wuhan, 430071, China
| | - Jia-Mei Chen
- Department of Oncology, Zhongnan Hospital of Wuhan University, Hubei Key Laboratory of Tumor Biological Behaviors & Hubei Cancer Clinical Study Center, Wuhan, 430071, China
| | - Jing-Ping Yuan
- Department of Oncology, Zhongnan Hospital of Wuhan University, Hubei Key Laboratory of Tumor Biological Behaviors & Hubei Cancer Clinical Study Center, Wuhan, 430071, China
| | - Qing-Ming Xiang
- Department of Oncology, Zhongnan Hospital of Wuhan University, Hubei Key Laboratory of Tumor Biological Behaviors & Hubei Cancer Clinical Study Center, Wuhan, 430071, China
| | - Gui-Fang Yang
- Department of Pathology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Ai-Ping Qu
- Key State Laboratory of Software Engineering, School of Computer, Wuhan University, Wuhan, 430072, China
| | - Juan Liu
- Key State Laboratory of Software Engineering, School of Computer, Wuhan University, Wuhan, 430072, China
| | - Yan Li
- Department of Oncology, Zhongnan Hospital of Wuhan University, Hubei Key Laboratory of Tumor Biological Behaviors & Hubei Cancer Clinical Study Center, Wuhan, 430071, China. .,Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital of Capital Medical University, Beijing, 100038, China. .,Department of Oncology, Zhongnan Hospital of Wuhan University; Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital of Capital Medical University, No 10, Tieyi Road, Yangfangdian, Haidian District, Beijing, 100038, China.
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22
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Marques ARA, Aten J, Ottenhoff R, van Roomen CPAA, Herrera Moro D, Claessen N, Vinueza Veloz MF, Zhou K, Lin Z, Mirzaian M, Boot RG, De Zeeuw CI, Overkleeft HS, Yildiz Y, Aerts JMFG. Reducing GBA2 Activity Ameliorates Neuropathology in Niemann-Pick Type C Mice. PLoS One 2015; 10:e0135889. [PMID: 26275242 PMCID: PMC4537125 DOI: 10.1371/journal.pone.0135889] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 07/27/2015] [Indexed: 12/11/2022] Open
Abstract
The enzyme glucocerebrosidase (GBA) hydrolyses glucosylceramide (GlcCer) in lysosomes. Markedly reduced GBA activity is associated with severe manifestations of Gaucher disease including neurological involvement. Mutations in the GBA gene have recently also been identified as major genetic risk factor for Parkinsonism. Disturbed metabolism of GlcCer may therefore play a role in neuropathology. Besides lysosomal GBA, cells also contain a non-lysosomal glucosylceramidase (GBA2). Given that the two β-glucosidases share substrates, we speculated that over-activity of GBA2 during severe GBA impairment might influence neuropathology. This hypothesis was studied in Niemann-Pick type C (Npc1-/-) mice showing secondary deficiency in GBA in various tissues. Here we report that GBA2 activity is indeed increased in the brain of Npc1-/- mice. We found that GBA2 is particularly abundant in Purkinje cells (PCs), one of the most affected neuronal populations in NPC disease. Inhibiting GBA2 in Npc1-/- mice with a brain-permeable low nanomolar inhibitor significantly improved motor coordination and extended lifespan in the absence of correction in cholesterol and ganglioside abnormalities. This trend was recapitulated, although not to full extent, by introducing a genetic loss of GBA2 in Npc1-/- mice. Our findings point to GBA2 activity as therapeutic target in NPC.
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Affiliation(s)
- André R. A. Marques
- Department of Medical Biochemistry, Academic Medical Center, 1105 AZ, Amsterdam, The Netherlands
| | - Jan Aten
- Department of Pathology, Academic Medical Center, 1105 AZ, Amsterdam, The Netherlands
| | - Roelof Ottenhoff
- Department of Medical Biochemistry, Academic Medical Center, 1105 AZ, Amsterdam, The Netherlands
| | | | - Daniela Herrera Moro
- Department of Medical Biochemistry, Academic Medical Center, 1105 AZ, Amsterdam, The Netherlands
| | - Nike Claessen
- Department of Pathology, Academic Medical Center, 1105 AZ, Amsterdam, The Netherlands
| | | | - Kuikui Zhou
- Department of Neuroscience, Erasmus MC, 3000 CA, Rotterdam, The Netherlands
| | - Zhanmin Lin
- Department of Neuroscience, Erasmus MC, 3000 CA, Rotterdam, The Netherlands
| | - Mina Mirzaian
- Department of Medical Biochemistry, Academic Medical Center, 1105 AZ, Amsterdam, The Netherlands
| | - Rolf G. Boot
- Department of Medical Biochemistry, Academic Medical Center, 1105 AZ, Amsterdam, The Netherlands
| | - Chris I. De Zeeuw
- Department of Neuroscience, Erasmus MC, 3000 CA, Rotterdam, The Netherlands
- Netherlands Institute for Neuroscience, Royal Dutch Academy of Arts & Sciences, 1105 BA, Amsterdam, The Netherlands
| | - Herman S. Overkleeft
- Leiden Institute of Chemistry, Leiden University, 2300 RA, Leiden, The Netherlands
| | - Yildiz Yildiz
- Department of Internal Medicine, Hospital of Bregenz, 6900, Bregenz, Austria
| | - Johannes M. F. G. Aerts
- Department of Medical Biochemistry, Academic Medical Center, 1105 AZ, Amsterdam, The Netherlands
- Leiden Institute of Chemistry, Leiden University, 2300 RA, Leiden, The Netherlands
- * E-mail:
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23
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Gago-Fuentes R, Fernández-Puente P, Megias D, Carpintero-Fernández P, Mateos J, Acea B, Fonseca E, Blanco FJ, Mayan MD. Proteomic Analysis of Connexin 43 Reveals Novel Interactors Related to Osteoarthritis. Mol Cell Proteomics 2015; 14:1831-45. [PMID: 25903580 DOI: 10.1074/mcp.m115.050211] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Indexed: 11/06/2022] Open
Abstract
We have previously reported that articular chondrocytes in tissue contain long cytoplasmic arms that physically connect two distant cells. Cell-to-cell communication occurs through connexin channels termed Gap Junction (GJ) channels, which achieve direct cellular communication by allowing the intercellular exchange of ions, small RNAs, nutrients, and second messengers. The Cx43 protein is overexpressed in several human diseases and inflammation processes and in articular cartilage from patients with osteoarthritis (OA). An increase in the level of Cx43 is known to alter gene expression, cell signaling, growth, and cell proliferation. The interaction of proteins with the C-terminal tail of connexin 43 (Cx43) directly modulates GJ-dependent and -independent functions. Here, we describe the isolation of Cx43 complexes using mild extraction conditions and immunoaffinity purification. Cx43 complexes were extracted from human primary articular chondrocytes isolated from healthy donors and patients with OA. The proteomic content of the native complexes was determined using LC-MS/MS, and protein associations with Cx43 were validated using Western blot and immunolocalization experiments. We identified >100 Cx43-associated proteins including previously uncharacterized proteins related to nucleolar functions, RNA transport, and translation. We also identified several proteins involved in human diseases, cartilage structure, and OA as novel functional Cx43 interactors, which emphasized the importance of Cx43 in the normal physiology and structural and functional integrity of chondrocytes and articular cartilage. Gene Ontology (GO) terms of the proteins identified in the OA samples showed an enrichment of Cx43-interactors related to cell adhesion, calmodulin binding, the nucleolus, and the cytoskeleton in OA samples compared with healthy samples. However, the mitochondrial proteins SOD2 and ATP5J2 were identified only in samples from healthy donors. The identification of Cx43 interactors will provide clues to the functions of Cx43 in human cells and its roles in the development of several diseases, including OA.
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Affiliation(s)
- Raquel Gago-Fuentes
- From the ‡CellCOM Research Group. Instituto de Investigación Biomédica A Coruña (INIBIC), XXIAC, University of A Coruña. Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Patricia Fernández-Puente
- §Rheumatology Division, ProteoRed/ISCIII, Proteomics Group, Instituto de Investigación Biomédica A Coruña (INIBIC), XXIAC. University of A Coruña. Xubias de Arriba 84, 15006 A Coruña, Spain; ¶Rheumatology Division, CIBER-BBN/ISCIII, Instituto de Investigación Biomédica A Coruña (INIBIC), XXIAC. University of A Coruña. Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Diego Megias
- ‖Confocal Microscopy Core Unit. Centro Nacional de Investigaciones Oncológicas (CNIO), 28029, Madrid, Spain
| | - Paula Carpintero-Fernández
- From the ‡CellCOM Research Group. Instituto de Investigación Biomédica A Coruña (INIBIC), XXIAC, University of A Coruña. Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Jesus Mateos
- §Rheumatology Division, ProteoRed/ISCIII, Proteomics Group, Instituto de Investigación Biomédica A Coruña (INIBIC), XXIAC. University of A Coruña. Xubias de Arriba 84, 15006 A Coruña, Spain; ¶Rheumatology Division, CIBER-BBN/ISCIII, Instituto de Investigación Biomédica A Coruña (INIBIC), XXIAC. University of A Coruña. Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Benigno Acea
- From the ‡CellCOM Research Group. Instituto de Investigación Biomédica A Coruña (INIBIC), XXIAC, University of A Coruña. Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Eduardo Fonseca
- From the ‡CellCOM Research Group. Instituto de Investigación Biomédica A Coruña (INIBIC), XXIAC, University of A Coruña. Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Francisco Javier Blanco
- §Rheumatology Division, ProteoRed/ISCIII, Proteomics Group, Instituto de Investigación Biomédica A Coruña (INIBIC), XXIAC. University of A Coruña. Xubias de Arriba 84, 15006 A Coruña, Spain; ¶Rheumatology Division, CIBER-BBN/ISCIII, Instituto de Investigación Biomédica A Coruña (INIBIC), XXIAC. University of A Coruña. Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Maria Dolores Mayan
- From the ‡CellCOM Research Group. Instituto de Investigación Biomédica A Coruña (INIBIC), XXIAC, University of A Coruña. Xubias de Arriba 84, 15006 A Coruña, Spain;
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Carvajal-Hausdorf D, Schalper KA, Neumeister V, Rimm DL. Quantitative measurement of cancer tissue biomarkers in the lab and in the clinic. J Transl Med 2015; 95:385-96. [PMID: 25502176 PMCID: PMC4383674 DOI: 10.1038/labinvest.2014.157] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 11/18/2014] [Indexed: 02/06/2023] Open
Abstract
Detection of biomolecules in tissues provides contextual information and the possibility to assess the interaction of different cell types and markers. Routine qualitative assessment of immune- and oligonucleotide-based methods in research and the clinic has been associated with assay variability because of lack of stringent validation and subjective interpretation of results. As a result, the vast majority of in situ assays in clinical usage are nonquantitative and, although useful, often of questionable scientific validity. Here, we revisit the reporters and methods used for single- and multiplexed in situ visualization of protein and RNA. Then we examine methods for the use of quantitative platforms for in situ measurement of protein and mRNA levels. Finally, we discuss the challenges of the transition of these methods to the clinic and their potential role as tools for development of companion diagnostic tests.
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Affiliation(s)
| | - Kurt A. Schalper
- Department of Pathology, Yale University School of Medicine, New Haven, CT
| | | | - David L. Rimm
- Department of Pathology, Yale University School of Medicine, New Haven, CT
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25
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Analysis of cancer marker in tissues with Hadamard transform fluorescence spectral microscopic imaging. J Fluoresc 2015; 25:397-402. [PMID: 25663197 DOI: 10.1007/s10895-015-1525-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 01/20/2015] [Indexed: 10/24/2022]
Abstract
Quantum dots (QDs) probes were used to tag and trace cancer biomarkers in cancer tissues based on the system of home-made Hadamard transform (HT) spectral microscopic imaging, which can be applied to provide high-resolution fluorescence spectrum and image of single cells and tissues. In situ fluorescence imaging for cancer marker proteins, such as estrogen receptor (ER), human epidermal growth factor receptor 2 (HER2), proliferating cell nuclear antigen (PCNA) and cytokeratin 20 (CK20) in tumor tissues, were realized by using the HT system to capture quantitative information for these proteins when tumor tissues were immunostained with QDs probes. A method to evaluate tumor malignancy of the specimens based on in situ analysis of distribution of marker proteins was proposed based on the comparative study of positive samples and negative controls. The investigation of ER contents of the cores in breast cancer tissue microarrays (TMAs) shows that the technique of QDs-immunohistochemistry (IHC)/HT spectral imaging is more sensitive than conventional IHC method. The results also demonstrate that the QDs-IHC/HT spectral imaging technique can be applied to visualize and quantitatively measure the subcellular molecules inside tumor tissues, and the coupling of HT spectral imaging to the probing of subcellular molecules with QDs has great potential in biology and medical diagnosis.
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26
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Staphylococcus epidermidis originating from titanium implants infects surrounding tissue and immune cells. Acta Biomater 2014; 10:5202-5212. [PMID: 25153780 DOI: 10.1016/j.actbio.2014.08.012] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 07/18/2014] [Accepted: 08/11/2014] [Indexed: 11/20/2022]
Abstract
Infection is a major cause of failure of inserted or implanted biomedical devices (biomaterials). During surgery, bacteria may adhere to the implant, initiating biofilm formation. Bacteria are also observed in and recultured from the tissue surrounding implants, and may even reside inside host cells. Whether these bacteria originate from biofilms is not known. Therefore, we investigated the fate of Staphylococcus epidermidis inoculated on the surface of implants as adherent planktonic cells or as a biofilm in mouse experimental biomaterial-associated infection. In order to discriminate the challenge strain from potential contaminating mouse microflora, we constructed a fully virulent green fluorescent S. epidermidis strain. S. epidermidis injected along subcutaneous titanium implants, pre-seeded on the implants or pre-grown as biofilm, were retrieved from the implants as well as the surrounding tissue in all cases after 4days, and in histology bacteria were observed in the tissue co-localizing with macrophages. Thus, bacteria adherent to or in a biofilm on the implant are a potential source of infection of the surrounding tissue, and antimicrobial strategies should prevent both biofilm formation and tissue colonization.
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27
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Stack EC, Wang C, Roman KA, Hoyt CC. Multiplexed immunohistochemistry, imaging, and quantitation: a review, with an assessment of Tyramide signal amplification, multispectral imaging and multiplex analysis. Methods 2014; 70:46-58. [PMID: 25242720 DOI: 10.1016/j.ymeth.2014.08.016] [Citation(s) in RCA: 507] [Impact Index Per Article: 50.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Revised: 08/12/2014] [Accepted: 08/29/2014] [Indexed: 12/16/2022] Open
Abstract
Tissue sections offer the opportunity to understand a patient's condition, to make better prognostic evaluations and to select optimum treatments, as evidenced by the place pathology holds today in clinical practice. Yet, there is a wealth of information locked up in a tissue section that is only partially accessed, due mainly to the limitations of tools and methods. Often tissues are assessed primarily based on visual analysis of one or two proteins, or 2-3 DNA or RNA molecules. Even while analysis is still based on visual perception, image analysis is starting to address the variability of human perception. This is in contrast to measuring characteristics that are substantially out of reach of human perception, such as parameters revealed through co-expression, spatial relationships, heterogeneity, and low abundance molecules. What is not routinely accessed is the information revealed through simultaneous detection of multiple markers, the spatial relationships among cells and tissue in disease, and the heterogeneity now understood to be critical to developing effective therapeutic strategies. Our purpose here is to review and assess methods for multiplexed, quantitative, image analysis based approaches, using new multicolor immunohistochemistry methods, automated multispectral slide imaging, and advanced trainable pattern recognition software. A key aspect of our approach is presenting imagery in a workflow that engages the pathologist to utilize the strengths of human perception and judgment, while significantly expanding the range of metrics collectable from tissue sections and also provide a level of consistency and precision needed to support the complexities of personalized medicine.
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28
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Fisher KE, Cohen C, Siddiqui MT, Palma JF, Lipford EH, Longshore JW. Accurate detection of BRAF p.V600E mutations in challenging melanoma specimens requires stringent immunohistochemistry scoring criteria or sensitive molecular assays. Hum Pathol 2014; 45:2281-93. [PMID: 25228337 DOI: 10.1016/j.humpath.2014.07.014] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 07/22/2014] [Accepted: 07/23/2014] [Indexed: 11/30/2022]
Abstract
Malignant melanoma patients require BRAF mutation testing prior to initiating BRAF inhibitor therapy. Molecular testing remains the diagnostic gold standard, but recent work suggests that BRAF immunohistochemistry (IHC) confers comparable results. Sample attributes and scoring criteria that may affect BRAF IHC interpretation, however, are poorly defined. We investigated formalin-fixed, paraffin-embedded samples with variable challenging interpretative attributes: metastases, core needle biopsies, sample tissues less than 60 mm(2), samples with greater than 50% necrosis, and/or samples with greater than 10% melanin pigmentation. Three pathologists independently scored 122 BRAF V600E IHC-labeled melanoma samples for percentage (0%-100%) of staining intensity (0-3+). Interscorer BRAF IHC discrepancies were resolved by consensus review. Lenient (≥1+, >0%) and stringent (≥2+, ≥10%) IHC scoring criteria were compared to BRAF V600 mutation (cobas) results (n = 118). Specimens with greater than 10% melanin pigmentation and metastatic samples produced the majority of interobserver IHC and IHC/cobas scoring discrepancies. Consensus review using stringent scoring criteria decreased the number of discrepant results, yielded very good interobserver reproducibility, and improved specificity and positive predictive value for BRAF p.V600E detection. BRAF p.V600K mutations accounted for 57.1% of false-negative IHC results when stringent, consensus criteria scoring were used. The cobas test detected 75.0% (8/12) of BRAF IHC-negative BRAF p.V600K mutations confirmed by next-generation sequencing. Molecular BRAF testing is the preferred screening test for BRAF inhibitor therapy eligibility because of superior sensitivity in challenging interpretative melanoma specimens. However, BRAF V600E IHC has excellent specificity and positive predictive value when stringent, consensus scoring criteria are implemented. To decrease IHC scoring discrepancies, pathologists should interpret metastatic and pigmented samples with caution.
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Affiliation(s)
- Kevin E Fisher
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA 30322, USA.
| | - Cynthia Cohen
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA 30322, USA
| | - Momin T Siddiqui
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA 30322, USA
| | - John F Palma
- Roche Molecular Systems, Pleasanton, CA 94588, USA
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29
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Multicolor Enzymatic Immunohistochemistry Assays for FFPE Tissue. Biotechniques 2014. [DOI: 10.2144/000114182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
While immunofluorescence (IF) has become a preferred method of concurrently detecting multiple antigenic markers within a single tissue specimen, immunoenzymatic chromogen staining with multiple colored substrates remains an informative and important research tool (1, 2). Staining specimens with immunoenzymatic chromogens allows researchers to cast a broader net for investigating targets because, unlike IF, it is permanent and can be visualized in relation to the comprehensive morphology of tissue specimens (1, 2). This stability also allows standard histological stains to be used in conjunction with the immunohistochemistry (IHC) to give researchers an additional layer of information. Immunofluorescence is often preferred over enzymatic IHC because it is a technically simpler method of visualizing multiple antigenic markers. Imaging with a fluorescent microscope and creating the composite images of multiple IF color channels can be the most complicated aspect of IF staining, but quantification of distinctly stained elements is simple and precise. The development of assays involving multiple IHC chromogenic substrates presents many challenges, such as determining the appropriate sequence of marker application/detection, compatibility of cellular localization of combined markers, special requirements for preparation of various enzymatic substrates, visual contrast compatibility of chromogenic substrates, the length of the overall staining process, and methods of analyzing staining results (1, 2). These potential IHC development obstacles can take time to overcome, but when the IHC assay is complete, the various chromogens can be visualized simultaneously, using standard light microscopy, and can be viewed repeatedly without altering staining results. These qualities of multicolor IHC are of significant value to researchers, especially in the early phases of study. There are now many tools available to easily resolve some of the significant assay development obstacles of multicolor enzymatic immunohistochemistry. Abcam has developed kits for easy antibody conjugation (both Horseradish Peroxidase and Alkaline Phosphatase), and a range of chromogenic substrates with improved stability. These products reduce the challenges of involved substrate preparation, and significantly reduce the length of staining procedures. The present work discusses how improved reagents simplify multicolor enzymatic IHC assay development for Formalin-Fixed Paraffin- Embedded (FFPE) tissues.
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Blenman KRM, Lee PP. Quantitative and spatial image analysis of tumor and draining lymph nodes using immunohistochemistry and high-resolution multispectral imaging to predict metastasis. Methods Mol Biol 2014; 1102:601-621. [PMID: 24259001 DOI: 10.1007/978-1-62703-727-3_32] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Immunohistochemistry is an essential tool for clinical and translational research laboratories. It is mostly used as a qualitative measure of morphology and cell types within tissue. We have developed a high-resolution multispectral imaging method to expand the uses of immunohistochemistry by making it quantitative. In this chapter we describe the technology, both hardware and software, that we use for this method and give examples of applications.
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Affiliation(s)
- Kim R M Blenman
- Cancer Immunotherapeutics & Tumor Immunology, Beckman Research Institute, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
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31
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Ramos-Vara JA, Miller MA. When tissue antigens and antibodies get along: revisiting the technical aspects of immunohistochemistry--the red, brown, and blue technique. Vet Pathol 2013; 51:42-87. [PMID: 24129895 DOI: 10.1177/0300985813505879] [Citation(s) in RCA: 246] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Once focused mainly on the characterization of neoplasms, immunohistochemistry (IHC) today is used in the investigation of a broad range of disease processes with applications in diagnosis, prognostication, therapeutic decisions to tailor treatment to an individual patient, and investigations into the pathogenesis of disease. This review addresses the technical aspects of immunohistochemistry (and, to a lesser extent, immunocytochemistry) with attention to the antigen-antibody reaction, optimal fixation techniques, tissue processing considerations, antigen retrieval methods, detection systems, selection and use of an autostainer, standardization and validation of IHC tests, preparation of proper tissue and reagent controls, tissue microarrays and other high-throughput systems, quality assurance/quality control measures, interpretation of the IHC reaction, and reporting of results. It is now more important than ever, with these sophisticated applications, to standardize the entire IHC process from tissue collection through interpretation and reporting to minimize variability among laboratories and to facilitate quantification and interlaboratory comparison of IHC results.
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Affiliation(s)
- J A Ramos-Vara
- Animal Disease Diagnostic Laboratory and Department of Comparative Pathobiology, Purdue University, 406 South University, West Lafayette, IN 47907, USA.
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32
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Abstract
The field of anatomic pathology has changed significantly over the last decades and, as a result of the technological developments in molecular pathology and genetics, has had increasing pressures put on it to become quantitative and to provide more information about protein expression on a cellular level in tissue sections. Multispectral imaging (MSI) has a long history as an advanced imaging modality and has been used for over a decade now in pathology to improve quantitative accuracy, enable the analysis of multicolor immunohistochemistry, and drastically reduce the impact of contrast-robbing tissue autofluorescence common in formalin-fixed, paraffin-embedded tissues. When combined with advanced software for the automated segmentation of different tissue morphologies (eg, tumor vs stroma) and cellular and subcellular segmentation, MSI can enable the per-cell quantitation of many markers simultaneously. This article covers the role that MSI has played in anatomic pathology in the analysis of formalin-fixed, paraffin-embedded tissue sections, discusses the technological aspects of why MSI has been adopted, and provides a review of the literature of the application of MSI in anatomic pathology.
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33
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Burg KJL. Embrace and Steer Change. J Histotechnol 2013. [DOI: 10.1179/his.2010.33.3.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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34
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van der Loos CM, de Boer OJ, Mackaaij C, Hoekstra LT, van Gulik TM, Verheij J. Accurate quantitation of Ki67-positive proliferating hepatocytes in rabbit liver by a multicolor immunohistochemical (IHC) approach analyzed with automated tissue and cell segmentation software. J Histochem Cytochem 2012; 61:11-8. [PMID: 22941418 DOI: 10.1369/0022155412461154] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Determination of hepatocyte proliferation activity is hampered by the presence of Ki67-positive non-parenchymal cells. We validated a multicolor immunohistochemical (IHC) approach using multispectral tissue and cell segmentation software. Portal vein branches to the cranial liver lobes of 10 rabbits were embolized, leading to atrophy of the cranial lobes and hyperplasia of the caudal lobes. Slides from cranial and caudal lobes (n=20) were double-stained (CK8+18 and Ki67) and triple-stained (CK8+18, Ki67, and CD31). The Ki67 proliferation index was calculated using automated tissue and cell segmentation software and compared with manual counting by two independent observers. A substantial variation was seen in the number of Ki67-positive hepatocytes in the different specimens in both double and triple staining (range, 0-50). Correlation coefficients between manual counting and the digital analysis were 0.76 for observer 1 (p<0.001) and 0.78 for observer 2 (p<0.001) with double staining and R(2) = 0.91 for observer 1 and R(2) = 0.89 for observer 2, p<0.001 with triple staining. In conclusion, in rabbit, the hepatocellular proliferation index can be reliably determined using automated tissue and cell segmentation software in combination with IHC multiple staining. Our findings may be useful in clinical practice when Ki67 proliferation index yields prognostic significance.
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Yaziji H, Eisen R, Wick M, Badve S, Cartun R, Haas T, Marolt M, Hicks D, Martin A, Barry T, Alsabeh R, Taylor J, Fulton R, Goldsmith J, Shen S, Taylor C, Swanson P. Immunohistochemistry cocktails are here to stay: Center for Medicare and Medicaid Services should revise its new reimbursement policy. Am J Clin Pathol 2012; 138:10-1. [PMID: 22706851 DOI: 10.1309/ajcpcgfdf4ecg8qn] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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36
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Immunohistochemistry cocktails are here to stay: Center of Medicare and Medicaid Services should revise its new reimbursement policy. Appl Immunohistochem Mol Morphol 2012; 20:331-3. [PMID: 22706071 DOI: 10.1097/pai.0b013e31825ed8a5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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37
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Wösten-van Asperen RM, Lutter R, Specht PA, Moll GN, van Woensel JB, van der Loos CM, van Goor H, Kamilic J, Florquin S, Bos AP. Acute respiratory distress syndrome leads to reduced ratio of ACE/ACE2 activities and is prevented by angiotensin-(1-7) or an angiotensin II receptor antagonist. J Pathol 2011; 225:618-27. [PMID: 22009550 DOI: 10.1002/path.2987] [Citation(s) in RCA: 236] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2011] [Revised: 08/03/2011] [Accepted: 08/12/2011] [Indexed: 12/20/2022]
Abstract
Acute respiratory distress syndrome (ARDS) is a devastating clinical syndrome. Angiotensin-converting enzyme (ACE) and its effector peptide angiotensin (Ang) II have been implicated in the pathogenesis of ARDS. A counter-regulatory enzyme of ACE, ie ACE2 that degrades Ang II to Ang-(1-7), offers a promising novel treatment modality for this syndrome. As the involvement of ACE and ACE2 in ARDS is still unclear, this study investigated the role of these two enzymes in an animal model of ARDS. ARDS was induced in rats by intratracheal administration of LPS followed by mechanical ventilation. During ventilation, animals were treated with saline (placebo), losartan (Ang II receptor antagonist), or with a protease-resistant, cyclic form of Ang-(1-7) [cAng-(1-7)]. In bronchoalveolar lavage fluid (BALF) of ventilated LPS-exposed animals, ACE activity was enhanced, whereas ACE2 activity was reduced. This was matched by enhanced BALF levels of Ang II and reduced levels of Ang-(1-7). Therapeutic intervention with cAng-(1-7) attenuated the inflammatory mediator response, markedly decreased lung injury scores, and improved lung function, as evidenced by increased oxygenation. These data indicate that ARDS develops, in part, due to reduced pulmonary levels of Ang-(1-7) and that repletion of this peptide halts the development of ARDS.
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Affiliation(s)
- Roelie M Wösten-van Asperen
- Department of Paediatric Intensive Care, Emma Children's Hospital/Academic Medical Centre, Amsterdam, The Netherlands.
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38
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Giesen C, Mairinger T, Khoury L, Waentig L, Jakubowski N, Panne U. Multiplexed immunohistochemical detection of tumor markers in breast cancer tissue using laser ablation inductively coupled plasma mass spectrometry. Anal Chem 2011; 83:8177-83. [PMID: 21923169 DOI: 10.1021/ac2016823] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
We optimized multiplexed immunohistochemistry (IHC) on breast cancer tissue. Up to 20 tumor markers are routinely evaluated for one patient, and thus, a common analysis results in a series of time consuming staining procedures. As an alternative, we used lanthanides for labeling of primary antibodies, which are applied in IHC. Laser ablation (LA) ICPMS was elaborated as a detection tool for multiplexed IHC of tissue sections. In this study, we optimized sample preparation steps and LA ICPMS parameters to achieve a sufficient signal-to-background ratio. The results prove the high selectivity of applied antibodies, which was sustained after labeling. Up to three tumor markers (Her 2, CK 7, and MUC 1) were detected simultaneously in a single multiplex analysis of a 5 μm thin breast cancer tissue at a laser spot size of 200 μm. Furthermore, the LA ICPMS results indicate a significantly higher expression level of MUC 1 compared to Her 2 and CK 7, which was not obvious from the conventionally stained tissue sections.
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Affiliation(s)
- Charlotte Giesen
- Humboldt-Universitaet zu Berlin, Department of Chemistry, Berlin, Germany.
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Piet B, de Bree GJ, Smids-Dierdorp BS, van der Loos CM, Remmerswaal EBM, von der Thüsen JH, van Haarst JMW, Eerenberg JP, ten Brinke A, van der Bij W, Timens W, van Lier RAW, Jonkers RE. CD8⁺ T cells with an intraepithelial phenotype upregulate cytotoxic function upon influenza infection in human lung. J Clin Invest 2011; 121:2254-63. [PMID: 21537083 DOI: 10.1172/jci44675] [Citation(s) in RCA: 138] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Accepted: 03/09/2011] [Indexed: 12/26/2022] Open
Abstract
The human lung T cell compartment contains many CD8⁺ T cells specific for respiratory viruses, suggesting that the lung is protected from recurring respiratory infections by a resident T cell pool. The entry site for respiratory viruses is the epithelium, in which a subset of lung CD8⁺ T cells expressing CD103 (αE integrin) resides. Here, we determined the specificity and function of CD103⁺CD8⁺ T cells in protecting human lung against viral infection. Mononuclear cells were isolated from human blood and lung resection samples. Variable numbers of CD103⁺CD8⁺ T cells were retrieved from the lung tissue. Interestingly, expression of CD103 was seen only in lung CD8⁺ T cells specific for influenza but not in those specific for EBV or CMV. CD103⁺ and influenza-reactive cells preferentially expressed NKG2A, an inhibitor of CD8⁺ T cell cytotoxic function. In contrast to CD103⁻CD8⁺ T cells, most CD103⁺CD8⁺ cells did not contain perforin or granzyme B. However, they could quickly upregulate these cytotoxic mediators when exposed to a type I IFN milieu or via contact with their specific antigen. This mechanism may provide a rapid and efficient response to influenza infection, without inducing cytotoxic damage to the delicate epithelial barrier.
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Affiliation(s)
- Berber Piet
- Department of Experimental Immunology, Academic Medical Centre, Amsterdam, Netherlands.
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Cellular context in epigenetics: Quantitative multicolor imaging and automated per-cell analysis of miRNAs and their putative targets. Methods 2010; 52:271-80. [DOI: 10.1016/j.ymeth.2010.10.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2010] [Revised: 09/28/2010] [Accepted: 10/01/2010] [Indexed: 11/22/2022] Open
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