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Nguyen ED, Ding CKC, Umetsu SE, Choi WT, Ferrell LD, Wen KW. Use of orcein as an adjunct stain in the evaluation of advanced liver fibrosis. Histopathology 2023; 83:538-545. [PMID: 37222207 DOI: 10.1111/his.14962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/24/2023] [Accepted: 05/10/2023] [Indexed: 05/25/2023]
Abstract
AIMS Advanced liver fibrosis can regress following the elimination of causative injuries. Trichrome (TC) stain has traditionally been used to evaluate the degree of fibrosis in liver, although it is rarely helpful in assessing quality of fibrosis (i.e. progression and regression). Orcein (OR) stain highlights established elastic fibres, but its use in examining fibrosis is not well recognised. This study assessed the potential utility of comparing OR and TC staining patterns to evaluate the quality of fibrosis in various settings of advanced fibrosis. METHODS AND RESULTS The haematoxylin and eosin and TC stains of 65 liver resection/explant specimens with advanced fibrosis caused by different elements were reviewed. Twenty-two cases were scored as progressive (P), 16 as indeterminate (I) and 27 as regressive (R) using TC stain based on the Beijing criteria. The OR stains confirmed 18 of 22 P cases. The remaining P cases showed either stable fibrosis or mixed P and R. Of the 27 R cases, 26 were supported by OR stain, with many showing thin perforated septa typically seen in adequately treated viral hepatitis cases. The 16 I cases showed a variety of OR staining patterns, which allowed for further subclassification than using TC stain alone. Viral hepatitis cases were enriched for regressive features (17 of 27). CONCLUSIONS Our data demonstrated the utility of OR as an adjunctive stain to evaluate the changes in fibrosis in cases of cirrhosis.
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Affiliation(s)
- Eric D Nguyen
- Department of Pathology, University of California, San Francisco, CA, USA
| | | | - Sarah E Umetsu
- Department of Pathology, University of California, San Francisco, CA, USA
| | - Won-Tak Choi
- Department of Pathology, University of California, San Francisco, CA, USA
| | - Linda D Ferrell
- Department of Pathology, University of California, San Francisco, CA, USA
| | - Kwun Wah Wen
- Department of Pathology, University of California, San Francisco, CA, USA
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Abdulhaleem M, Ruiz J, O’Neill S, Hughes RT, Qasem S, Strowd RE, Furdui C, Watabe K, Miller LD, Debinski W, Tatter S, Metheny-Barlow L, White JJ, Lee J, McTyre ER, Laxton A, Chan MD, Su J, Soike MH. Collagen deposition within brain metastases is associated with leptomeningeal failure after
cavity-directed radiosurgery. Neurooncol Adv 2023; 5:vdac186. [PMID: 36789023 PMCID: PMC9918843 DOI: 10.1093/noajnl/vdac186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Background Leptomeningeal failure (LMF) represents a devastating progression of disease following resection of brain metastases (BrM). We sought to identify a biomarker at time of BrM resection that predicts for LMF using mass spectrometry-based proteomic analysis of resected BrM and to translate this finding with histochemical assays. Methods We retrospectively reviewed 39 patients with proteomic data available from resected BrM. We performed an unsupervised analysis with false discovery rate adjustment (FDR) to compare proteomic signature of BrM from patients that developed LMF versus those that did not. Based on proteomic analysis, we applied trichrome stain to a total of 55 patients who specifically underwent resection and adjuvant radiosurgery. We used competing risks regression to assess predictors of LMF. Results Of 39 patients with proteomic data, FDR revealed type I collagen-alpha-1 (COL1A1, P = .045) was associated with LMF. The degree of trichrome stain in each block correlated with COL1A1 expression (β = 1.849, P = .001). In a cohort of 55 patients, a higher degree of trichrome staining was associated with an increased hazard of LMF in resected BrM (Hazard Ratio 1.58, 95% CI 1.11-2.26, P = .01). Conclusion The degree of trichrome staining correlated with COL1A1 and portended a higher risk of LMF in patients with resected brain metastases treated with adjuvant radiosurgery. Collagen deposition and degree of fibrosis may be able to serve as a biomarker for LMF.
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Affiliation(s)
- Mohammed Abdulhaleem
- Corresponding Author: Mohammed Abdulhaleem, MD, Department of Medicine Wake Forest School of Medicine Medical Center Blvd Winston-Salem, NC, 27157 ()
| | | | - Stacey O’Neill
- Department of Pathology, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Ryan T Hughes
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Shadi Qasem
- Department of Pathology, Kentucky School of Medicine, Lexington, Kentucky
| | - Roy E Strowd
- Department of Medicine (Hematology and Oncology), Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Cristina Furdui
- Department of Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Konousuke Watabe
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Lance D Miller
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Waldemar Debinski
- Department of Cancer Biology, Brain Tumor Center of Excellence, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Stephen Tatter
- Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Linda Metheny-Barlow
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Jaclyn J White
- Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Jingyun Lee
- Department of Pathology, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Emory R McTyre
- Department of Radiation Oncology, Greenville Health System Cancer Institute, Greenville, South Carolina
| | - Adrian Laxton
- Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Michael D Chan
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Jing Su
- Department of Gerontology and Geriatric Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Michael H Soike
- Department of Radiation Oncology, Hazelrig-Salter Radiation Oncology Center, University of Alabama at Birmingham, Birmingham, Alabama
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Yıldız İ, Ertuğ S, Tileklioğlu E, Malatyalı E, Güçlü Ö, Ertabaklar H. Investigation of Dientamoeba fragilis Frequency in Faecal Samples of Patients with Enterobius vermicularis Infection by Polymerase Chain Reaction. Turkiye Parazitol Derg 2021; 45:195-200. [PMID: 34346875 DOI: 10.4274/tpd.galenos.2021.7257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Objective Dientamoeba fragilis (D. fragilis) is a flagellated protozoan with an amoeba-like morphology, located in the gastrointestinal tract. The hypothesis was that the parasite was transported by Enterobius vermicularis (E. vermicularis) eggs. This study aimed to determine the association of D. fragilis and E. vermicularis with the genotypes of the identified strain of D. fragilis. Results of trichrome staining were compared with those of polymerase chain reaction (PCR), which is widely used in the diagnosis of D. fragilis. Methods A total of 391 samples were obtained. The stool and cellophane slide samples were sent together to the Parasitology Department Laboratory, Faculty of Medicine, Aydın Adnan Menderes University, between 1 October 2017 and 1 October 2018. Stool samples of all patients with E. vermicularis (n=74) and without E. vermicularis (n=74) infection were used. All samples were examined for the presence of D. fragilis by trichrome staining and PCR. The 18S ribosomal RNA region of D. fragilis isolates was sequenced. Demographic characteristics and clinical findings of the patients were evaluated. Results D. fragilis was detected in 42 (28.37%) of 148 samples; 28 (66.6%) of them were detected in patients with E. vermicularis infection. The coexistence of two parasites was significant (p<0.05). All isolates sequenced were genotype 1. No significant relationship was found between the presence of parasites and clinical findings, living area and gender (p>0.05). Conclusion D. fragilis is frequently associated with E. vermicularis, so the presence of D. fragilis should be also considered in affected patients. The use of high-sensitivity molecular methods such as PCR is important in preventing false results. Amaç Dientamoeba fragilis (D. fragilis), amip benzeri morfolojiye sahip, gastrointestinal yerleşimli, kamçılı bir protozoondur. Parazitin Enterobius vermicularis (E. vermicularis) yumurtalarıyla taşındığı hipotezi kabul görmektedir. Çalışmamızda D. fragilis ve E. vermicularis birlikteliğini incelemek, bulunan D. fragilis’lerin genotiplerini belirlemek ve D. fragilis tanısında yaygın olarak kullanılan trikrom boyama ile polimeraz zincir reaksiyon (PZR) yöntemlerini karşılaştırmak amaçlanmıştır. Yöntemler Çalışmamızda Aydın Adnan Menderes Üniversitesi Tıp Fakültesi, Parazitoloji Laboratuvarı’na 1 Ekim 2017-1 Ekim 2018 tarihleri arasında dışkı ve selofan lam örneği birlikte gönderilmiş toplam 391 olgu örneği incelenmiştir. Selofanlı lam örneklerinde E. vermicularis saptanan tüm gönüllü olguların (74 olgu) dışkı örneği ile E. vermicularis negatif 74 olgunun dışkı örneği çalışılmıştır. Tüm dışkılar trikrom boyama ve PZR yöntemleri ile D. fragilis varlığı açısından incelenmiştir. Saptanan D. fragilis izolatlarının 18S ribozomal RNA bölgesi sekanslanmıştır. Olguların demografik özellikleri ve kliniği değerlendirilmiştir. Bulgular Toplam 148 olgunun 42’sinde (%28,37) D. fragilis saptanmıştır. D. fragilis pozitif olan 42 olgunun %66,6’sını E. vermicularis pozitif olgular oluşturmuş ve iki parazitin birlikteliği anlamlı bulunmuştur (p<0,05). Sekanslanan tüm izolatlar genotip 1 olarak saptanmıştır. Klinik bulgular, yaşanılan bölge ve cinsiyet ile parazit varlığı arasında anlamlı bir ilişki saptanamamıştır (p>0,05). Sonuç Araştırmamızda D. fragilis’in sıklıkla E. vermicularis ile birliktelik gösterdiği ve bu olgularda D. fragilis varlığına ayrıca dikkat edilmesi gerektiği vurgulanmıştır. Yanlış sonuçları engellemede, yüksek duyarlılığa sahip PZR gibi yöntemlerin önemi bir kez daha görülmüştür.
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Affiliation(s)
- İbrahim Yıldız
- Aydın Adnan Menderes Üniversitesi Tıp Fakültesi, Parazitoloji Anabilim Dalı, Aydın, Türkiye
| | - Sema Ertuğ
- Aydın Adnan Menderes Üniversitesi Tıp Fakültesi, Parazitoloji Anabilim Dalı, Aydın, Türkiye
| | - Evren Tileklioğlu
- Aydın Adnan Menderes Üniversitesi Tıp Fakültesi, Parazitoloji Anabilim Dalı, Aydın, Türkiye
| | - Erdoğan Malatyalı
- Aydın Adnan Menderes Üniversitesi Tıp Fakültesi, Parazitoloji Anabilim Dalı, Aydın, Türkiye
| | - Özgür Güçlü
- Aydın Adnan Menderes Üniversitesi Üniversitesi, Sultanhisar Meslek Yüksek Okulu, Aydın, Türkiye
| | - Hatice Ertabaklar
- Aydın Adnan Menderes Üniversitesi Tıp Fakültesi, Parazitoloji Anabilim Dalı, Aydın, Türkiye
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Havnar C, Lau S, Hung J, Eastham-Anderson J, Espiritu C, Rangell L, Koeppen H, Ziai J, Foreman O. Characterization of Tumor-immune Microenvironment by High-throughput Image Analysis of CD8 Immunohistochemistry Combined With Modified Masson's Trichrome. J Histochem Cytochem 2021; 69:611-615. [PMID: 34353148 DOI: 10.1369/00221554211034935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
With the advent of checkpoint inhibitors, there is increasing need to study the dynamics of CD8+ T-cells in the tumor microenviroment. In this article, we describe a semi-automated method to quantify and interrogate spatial relationships between T-cells and collagenous stroma in human and mouse tissue samples. The assay combines CD8 immunohistochemistry with modified Masson's trichrome. Slides are scanned and digital images are analyzed using an adjustable MATLAB algorithm, allowing for high-throughput quantification of cytotoxic T-cells and collagen. This method provides a flexible tool for unbiased quantification of T-cells and their interactions with tumor cells and tumor microenvironment in tissue samples.
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Affiliation(s)
- Charles Havnar
- Department of Research Pathology, Genentech, Inc., South San Francisco, California
| | - Shari Lau
- Department of Research Pathology, Genentech, Inc., South San Francisco, California
| | - Jeffrey Hung
- Department of Research Pathology, Genentech, Inc., South San Francisco, California
| | | | - Carmina Espiritu
- Department of Research Pathology, Genentech, Inc., South San Francisco, California
| | - Linda Rangell
- Department of Research Pathology, Genentech, Inc., South San Francisco, California
| | - Hartmut Koeppen
- Department of Research Pathology, Genentech, Inc., South San Francisco, California
| | - James Ziai
- Department of Research Pathology, Genentech, Inc., South San Francisco, California
| | - Oded Foreman
- Department of Research Pathology, Genentech, Inc., South San Francisco, California
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Davis KL, Burnum AL, Beck JA, Kirejczyk SGM, Miller MA, Sola MF, Brown CA. Diagnosis of Collagen Type III Glomerulopathy Using Picrosirius Red and PASH/Masson's Trichrome Stain. Vet Pathol 2020; 57:675-680. [PMID: 32880237 DOI: 10.1177/0300985820934111] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Canine collagen type III glomerulopathy (Col3GP) is a rare juvenile nephropathy in which irregular type III collagen fibrils and fibronectin accumulate in glomerular capillary walls and the mesangium. Necropsy findings were reviewed from 5 puppies diagnosed with Col3GP at 6 to 18 weeks of age. Histologically, with hematoxylin and eosin stain, the glomerular capillary walls and mesangium were diffusely and globally expanded by homogeneous pale eosinophilic material. Ultrastructurally, the subendothelial zone and mesangium were expanded by fibronectin and cross-banded collagen type III fibrils, diagnostic of Col3GP. Two additional stains were employed to identify the material within glomeruli as fibrillar collagen using light microscopy. In all 5 cases, the material was red with picrosirius red and birefringent under polarized light, and was blue with periodic acid-Schiff/hematoxylin/trichrome (PASH/TRI), thereby identifying it as fibrillar collagen. Based on these unique staining characteristics with picrosirius red and PASH/TRI, Col3GP may be reliably diagnosed with light microscopy alone.
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Affiliation(s)
- Katelin L Davis
- 311308Purdue University, West Lafayette, IN, USA.,National Cancer Institute, Comparative Biomedical Scientist Training Program, Bethesda, MD, USA
| | | | - Jessica A Beck
- 311308Purdue University, West Lafayette, IN, USA.,National Cancer Institute, Comparative Biomedical Scientist Training Program, Bethesda, MD, USA
| | | | | | - Mario F Sola
- 311308Purdue University, West Lafayette, IN, USA
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Shoviantari F, Erawati T, Soeratri W. Coenzyme Q10 nanostructured lipid carriers as an inducer of the skin fibroblast cell and its irritability test in a mice model. J Basic Clin Physiol Pharmacol 2019; 30:/j/jbcpp.ahead-of-print/jbcpp-2019-0320/jbcpp-2019-0320.xml. [PMID: 31860468 DOI: 10.1515/jbcpp-2019-0320] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 11/15/2019] [Indexed: 11/15/2022]
Abstract
Background Coenzyme Q10 is a fat-soluble antioxidant that can help to prevent collagen and elastin damage and avoid wrinkles. Coenzyme Q10 has several disadvantages to be formulated in topical dosage forms, such as low water solubility and large molecular weight. These make coenzyme Q10 retained in the stratum corneum and cause low skin penetration, so proper formulation is required to get products that can penetrate the skin layer. A nanostructured lipid carrier (NLC) consists of a matrix of solid lipids and liquid lipids in a certain amount with nanoparticle size; it may help increase the penetration of active ingredients. Methods For the antiaging activity test, mice were grouped into four treatment groups and killed on the 14th day; then the back of the skin was stained with Masson trichrome staining. For the irritation test, the mice were grouped into three groups and killed after 24 h; then the back of the mice was stained with hematoxylin-eosin staining. Results The number of fibroblasts in mice with NLC coenzyme Q10 is highest from all test groups. The irritation test results after 24 h of application preparation showed that NLC coenzyme Q10 did not irritate the skin of the back of male mice. Conclusions One percent coenzyme Q10 loaded in NLC induced the number of fibroblast cells in the mice model and showed no irritability effect in histopathology preparations.
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Affiliation(s)
- Fenita Shoviantari
- Department of Industrial Pharmacy, Institut Ilmu Kesehatan Bhakti Wiyata Kediri, Kota Kediri, Jawa Timur 64114, Indonesia
| | - Tristiana Erawati
- Universitas Airlangga, Department of Pharmaceutic, Faculty of Pharmacy, Gedung Nanizar Zaman Joenoes, UNAIR Kampus C, JI Mulyorejo 60115 Surabaya.,Department of Pharmaceutics, Airlangga University, Jl. Mulyorejo Surabaya, Jawa Timur, Indonesia
| | - Widji Soeratri
- Department of Pharmaceutics, Airlangga University, Jl. Mulyorejo Surabaya, Jawa Timur, Indonesia
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