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Hashimoto T, Owada Y, Katagiri H, Yakuwa K, Tyo K, Sugai M, Fuzimura I, Utsumi Y, Akiyama M, Nagashima H, Terasaki H, Yanagawa N, Saito H, Sugai T, Maemondo M. Characteristics and prognostic analysis of patients with detected KRAS mutations in resected lung adenocarcinomas by peptide nucleic acid-locked nucleic acid polymerase chain reaction (PNA-LNA PCR) clamp method. Transl Lung Cancer Res 2023; 12:1862-1875. [PMID: 37854155 PMCID: PMC10579836 DOI: 10.21037/tlcr-23-15] [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] [Received: 02/09/2023] [Accepted: 08/03/2023] [Indexed: 10/20/2023]
Abstract
Background Kirsten rat sarcoma virus (KRAS) gene mutations are a type of driver mutation discovered in the 1980s, but for a long time no molecular targeted drugs were available for them. Recently, sotorasib was developed as a molecular targeted drug for KRAS mutations. It is therefore necessary to identify the characteristics of patients with KRAS mutations. Methods This was the single-institution retrospective study. Surgically resected tumors from lung adenocarcinoma patients were collected at a single institution from June 2016 to September 2019. Peptide nucleic acid-locked nucleic acid polymerase chain reaction (PNA-LNA PCR) clamp analysis of KRAS G12X mutations was compared with analysis by therascreen KRAS RGQ kit. The association between KRAS mutation status and patient characteristics and prognosis was assessed. Results Among 499 lung adenocarcinomas, KRAS mutations were evaluated in 197 cases, excluding stage IV lung cancer and tumors with epidermal growth factor receptor (EGFR) and anaplastic lymphoma kinase (ALK) mutations. KRAS G12X mutations were detected in 59 cases (29.9%). The highest frequency by gene mutation subtype was G12V in 23 cases (39.0%), followed by G12C in 16 cases (27.1%), G12D in 12 cases (20.3%), G12S in 4 cases (6.8%) and G12A in 2 cases. For the G12C mutation, the PNA-LNA PCR clamp and therascreen methods were consistent, but for the G12D and G12S mutations, the PNA-LNA PCR clamp method showed higher detection rates. In operable tumors, G12C mutations were more frequent in males, smokers, and patients with high expression of programmed death-ligand 1 (PD-L1), and had no correlation with prognosis. Conclusions By the PNA-LNA PCR clamp method, G12C mutation of surgical specimens was detected successfully. The PNA-LNA PCR clamp method is expected to be applied to the detection of druggable G12C mutations.
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Affiliation(s)
- Tatsuya Hashimoto
- Division of Pulmonary Medicine, Department of Internal Medicine, Iwate Medical University School of Medicine, Iwate, Japan
| | - Yoshihisa Owada
- Division of Pulmonary Medicine, Department of Internal Medicine, Iwate Medical University School of Medicine, Iwate, Japan
| | - Hiroshi Katagiri
- Division of Pulmonary Medicine, Department of Internal Medicine, Iwate Medical University School of Medicine, Iwate, Japan
| | - Kazuhiro Yakuwa
- Division of Pulmonary Medicine, Department of Internal Medicine, Iwate Medical University School of Medicine, Iwate, Japan
| | - Katuya Tyo
- Division of Pulmonary Medicine, Department of Internal Medicine, Iwate Medical University School of Medicine, Iwate, Japan
| | - Mayu Sugai
- Division of Pulmonary Medicine, Department of Internal Medicine, Iwate Medical University School of Medicine, Iwate, Japan
| | - Itaru Fuzimura
- Division of Pulmonary Medicine, Department of Internal Medicine, Iwate Medical University School of Medicine, Iwate, Japan
| | - Yu Utsumi
- Division of Pulmonary Medicine, Department of Internal Medicine, Iwate Medical University School of Medicine, Iwate, Japan
| | - Masachika Akiyama
- Division of Pulmonary Medicine, Department of Internal Medicine, Iwate Medical University School of Medicine, Iwate, Japan
| | - Hiromi Nagashima
- Division of Pulmonary Medicine, Department of Internal Medicine, Iwate Medical University School of Medicine, Iwate, Japan
| | - Hiroshi Terasaki
- Medical Solution Segment, Advanced Technology Center, Genome Analysis Department, LSI Medience Corporation, Tokyo, Japan
| | - Naoki Yanagawa
- Department of Molecular Diagnostic Pathology, Iwate Medical University School of Medicine, Iwate, Japan
| | - Hajime Saito
- Division of Thoracic Surgery, Department of Internal Medicine, Iwate Medical University School of Medicine, Iwate, Japan
| | - Tamotsu Sugai
- Department of Molecular Diagnostic Pathology, Iwate Medical University School of Medicine, Iwate, Japan
| | - Makoto Maemondo
- Division of Pulmonary Medicine, Department of Internal Medicine, Iwate Medical University School of Medicine, Iwate, Japan
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Pölcher M, Braun M, Tischitz M, Hamann M, Szeterlak N, Kriegmair A, Brambs C, Becker C, Stoetzer O. Concordance of the molecular subtype classification between core needle biopsy and surgical specimen in primary breast cancer. Arch Gynecol Obstet 2021; 304:783-790. [PMID: 33585986 DOI: 10.1007/s00404-021-05996-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 02/02/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Molecular profiling of breast cancer (BC) classifies several intrinsic subtypes based on different patterns of gene expression. Multigene assays estimate the risk of recurrence and help to select high-risk patients for adjuvant chemotherapy. However, these tests are associated with significant costs. Immunohistochemistry (IHC) offers a surrogate classification for molecular subtypes by determining estrogen (ER) and progesterone receptors (PR), human epidermal growth factor (Her2neu), as well as the proliferation marker Ki67. Core needle biopsy (CNB) is well established in BC diagnosis and allows a pre-operative assessment of biomarkers. The aim of this study was to analyze the concordance of these markers between CNB and surgical specimens to assess whether re-testing of the surgical specimen is mandatory. MATERIALS AND METHODS Within a 3-year period, patients with primary BC and paired samples of CNB and surgical specimens were analyzed retrospectively. Concordance rates of ER, PR, Her2neu, Ki67, and the surrogate classification for molecular subtypes were calculated using the Landis and Koch agreement grades. RESULTS Out of 2254 patients with primary breast cancer, 1307 paired specimens without pre-operative treatment were available for analysis Concordance rates for ER, PR, Her2neu, and Ki67 status showed substantial-to-almost perfect agreement grades (κ = 0.91, 0.75, 0.89, and 0.61, respectively). Though substantial concordance was also found for the subtype classification (κ = 0.70), the molecular subtype changed in 18.5% of patients based on the testing of the surgical specimen, mainly from luminal A-like to luminal B-like. CONCLUSIONS Though the concordance rates for single markers were convincing, a significant proportion of the molecular subtypes differed between CNB and the surgical specimen. Re-testing of PR and Ki67 is mandatory to ensure optimal treatment decisions. Further research is necessary to define safe, efficient, and cost-effective predictive models in adjuvant breast cancer therapy.
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Affiliation(s)
- M Pölcher
- Department of Gynecology, Rotkreuzklinikum München, Taxisstraße 3, 80637, Munich, Germany.
| | - M Braun
- Department of Gynecology, Rotkreuzklinikum München, Taxisstraße 3, 80637, Munich, Germany
| | - M Tischitz
- Department of Gynecology, Rotkreuzklinikum München, Taxisstraße 3, 80637, Munich, Germany
| | - M Hamann
- Department of Gynecology, Rotkreuzklinikum München, Taxisstraße 3, 80637, Munich, Germany
| | - N Szeterlak
- Department of Gynecology, Rotkreuzklinikum München, Taxisstraße 3, 80637, Munich, Germany
| | - A Kriegmair
- Department of Gynecology, Rotkreuzklinikum München, Taxisstraße 3, 80637, Munich, Germany
| | - C Brambs
- School of Medicine, Department of Obstetrics and Gynecology, Technical University of Munich, Ismaninger Strasse 22, 81675, Munich, Germany
| | - C Becker
- Department of Pathology, Rotkreuzklinikum München, Winthirstraße 11, 80639, Munich, Germany
| | - O Stoetzer
- MVZ (Ambulatort Health Care Center) for Hematology and Oncology, Winthirstraße 11, 80639, Munich, Germany
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Marioni G, Franz L, Ottaviano G, Contro G, Tealdo G, Carli A, Frigo AC, Nicolai P, Alessandrini L. Prognostic Significance of CD105- and CD31-Assessed Microvessel Density in Paired Biopsies and Surgical Samples of Laryngeal Carcinoma. Cancers (Basel) 2020; 12:E2059. [PMID: 32722476 DOI: 10.3390/cancers12082059] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 07/15/2020] [Accepted: 07/22/2020] [Indexed: 02/06/2023] Open
Abstract
Small pretreatment laryngeal biopsies may not fully represent a tumor's biological profile. This study on laryngeal squamous cell carcinoma (LSCC) aimed to investigate the prognostic role of CD105- and CD31-assessed microvessel density (MVD) in paired biopsies and surgical specimens and the association and discrepancy between CD105- and CD31-assessed MVD in biopsies and surgical specimens. CD105- and CD31-assessed MVD was analyzed in paired biopsies and surgical specimens of 45 consecutive cases of LSCC. In the LSCC biopsies and surgical specimens, median CD105-assessed MVD was significantly higher in N+ than in N0 cases (p = 0.0008, and p = 0.0002, respectively). Disease-free survival (DFS) was associated with CD105- and CD31-assessed MVD in both biopsies and surgical specimens (p < 0.0001 for all specimens). Multivariable Cox's regression showed that pathological grade (p < 0.0001) and CD105-assessed MVD in LSCC biopsies (p = 0.0209) predicted DFS. Lin's concordance coefficient showed that CD31 overestimated MVD compared with CD105 in LSCC biopsies and surgical specimens. CD105-assessed MVD should be further investigated in larger LSCC series as a potential prognostic marker for identifying: patients at higher risk of recurrence who might warrant more aggressive therapy; and cN0 patients requiring elective neck dissection for a significant risk of regional metastasis.
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Wang F, Numata K, Yonezawa H, Sato K, Ishii Y, Yaguchi K, Kume N, Hashimoto Y, Nishio M, Nakamori Y, Ikeda A, Madarame A, Hirayama A, Ogashiwa T, Sasaki T, Jin M, Hanzawa A, Shibata N, Hashimorto S, Saigusa Y, Inayama Y, Maeda S, Kimura H, Kunisaki R. Consistency of Trans-Abdominal and Water-Immersion Ultrasound Images of Diseased Intestinal Segments in Crohn's Disease. Diagnostics (Basel) 2020; 10:E267. [PMID: 32365572 DOI: 10.3390/diagnostics10050267] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/25/2020] [Accepted: 04/27/2020] [Indexed: 12/13/2022] Open
Abstract
The aim of this study is to clarify whether trans-abdominal ultrasound (TAUS) can reflect actual intestinal conditions in Crohn’s disease (CD) as effectively as water-immersion ultrasound (WIUS) does. This retrospective study enrolled 29 CD patients with 113 intestinal lesions. Five ultrasound (US) parameters (distinct presence/indistinct presence/disappearance of wall stratification in the submucosal and mucosal layers; thickened submucosal layer; irregular mucosal surface; increased fat wrapping around the bowel wall; and fistula signs) that may indicate different states in CD were determined by TAUS and WIUS for the same lesion. Using WIUS as a reference standard, the sensitivity, specificity, and accuracy of TAUS were calculated. The degree of agreement between TAUS and WIUS was evaluated by the kappa coefficient. All US parameters of TAUS had an accuracy >70% (72.6–92.7%). The highest efficacy of TAUS was obtained for fistula signs (sensitivity, specificity, and accuracy values were 63.6%, 96.0%, and 92.7%, respectively). All US parameters between TAUS and WIUS had a definitive (p ≤ 0.001) and moderate-to-substantial consistency (kappa value = 0.446–0.615). The images of TAUS showed substantial similarity to those of WIUS, suggesting that TAUS may function as a substitute to evaluate the actual intestinal conditions of CD.
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Yüksel D, Kilic C, Kodal B, Cakir C, Güler Mesci C, Boran N, Kayıkçıoğlu F. A RARE CASE OF A RETROPERITONEAL LEIOMYOMATOSIS. J Gynecol Obstet Hum Reprod 2021; 50:101760. [PMID: 32325271 DOI: 10.1016/j.jogoh.2020.101760] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 04/08/2020] [Indexed: 11/21/2022]
Abstract
Leiomyomas are mostly located in the uterus.Retroperitoneal presentation of leiomyomas are rare and have a greater diagnostic challenge.Because retroperinoteal tumours are quite rare and mostly malignant. Therefore, differantial diagnosis is difficult.We report a rare case of retroperitoneal leiomyomatosis, in which there were concurrent leiomyomas in uterus, pelvic and paraaortic regions that are adjacent to pelvic and paraaortic vascular structures.The patient underwent type 1 hysterectomy and bilateral salpingo-oophorectomy and had a total excision of the myomas from adjacent structures. Histological examination of the surgical specimen revealed that leiomyoma. She has been disease -free for 24 months now.
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Yaguchi K, Sasaki T, Ogashiwa T, Nishio M, Hashimoto Y, Ikeda A, Izumi M, Hanzawa A, Shibata N, Yonezawa H, Sakamaki K, Tateishi Y, Numata K, Maeda S, Kimura H, Kunisaki R. Correlation between the macroscopic severity of Crohn's disease in resected intestine and bowel wall thickness evaluated by water-immersion ultrasonography. Scand J Gastroenterol 2019; 54:1331-1338. [PMID: 31656106 DOI: 10.1080/00365521.2019.1683224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Objectives: Transabdominal ultrasonography is a common and accurate tool for managing Crohn's disease (CD); however, the significance of the resulting data is poorly understood. This study was performed to determine the association between bowel wall thickness evaluated by water-immersion ultrasonography and macroscopic severity, namely, refractory inflammation and subsequent fibrosis in CD surgical specimens.Materials and methods: We retrospectively evaluated 100 segments of colon and small intestine from 27 patients with CD. The resected specimens were placed in saline postoperatively, and bowel wall thickness was measured by water-immersion ultrasonography and compared with macroscopic findings. Correlations between bowel wall thickness and macroscopic findings were assessed using analysis of variance and receiver operating characteristic curves.Results: According to the progression of macroscopic severity, the mean bowel wall thickness was increased as follows: macroscopically intact: 4.1 mm, longitudinal ulcer scars: 5.4 mm, longitudinal open ulcers: 6.0 mm, large ulcers: 6.4 mm, cobblestone-like lesions: 7.1 mm, and fibrotic strictures: 7.4 mm. For all lesions except longitudinal ulcer scars, the bowel wall thickness was significantly thicker than that of macroscopically-intact areas (p < .001). According to receiver operating characteristic curves, bowel wall thickness >4.5 mm was associated with CD lesions, and thickness >5.5 mm was associated with more severe lesions.Conclusions: The bowel wall thickness of CD lesions was evaluated by water-immersion ultrasonography correlated with macroscopic disease severity.
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Affiliation(s)
- Katsuki Yaguchi
- Inflammatory Bowel Disease Center, Yokohama City University Medical Center, Yokohama, Japan.,Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tomohiko Sasaki
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tsuyoshi Ogashiwa
- Inflammatory Bowel Disease Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Masafumi Nishio
- Inflammatory Bowel Disease Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Yu Hashimoto
- Inflammatory Bowel Disease Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Aya Ikeda
- Inflammatory Bowel Disease Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Misato Izumi
- Department of Laboratory Medicine and Clinical Investigation, Yokohama City University Medical Center, Yokohama, Japan
| | - Akiho Hanzawa
- Department of Laboratory Medicine and Clinical Investigation, Yokohama City University Medical Center, Yokohama, Japan
| | - Naomi Shibata
- Department of Laboratory Medicine and Clinical Investigation, Yokohama City University Medical Center, Yokohama, Japan
| | - Hiromi Yonezawa
- Department of Laboratory Medicine and Clinical Investigation, Yokohama City University Medical Center, Yokohama, Japan
| | - Kentaro Sakamaki
- Department of Biostatistics and Epidemiology, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Yoko Tateishi
- Department of Pathology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kazushi Numata
- Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Shin Maeda
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Hideaki Kimura
- Inflammatory Bowel Disease Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Reiko Kunisaki
- Inflammatory Bowel Disease Center, Yokohama City University Medical Center, Yokohama, Japan
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Khramtsov AI, Khramtsova GF, Asaulenko ZP, Selentyeva AA, Spiridonov IN, Vorobyev RV, Kuzmin MN, Krivolapov YA. [Application of tissue-marking dyes for pathologic examination of surgical and autopsy specimens]. Arkh Patol 2019; 81:40-45. [PMID: 30830104 DOI: 10.17116/patol20198101140] [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: 11/17/2022]
Abstract
OBJECTIVE To assess the applicability of imported tissue-marking dyes and the samples of experimental dyes and decorative acrylic paints to mark the resection margins of a surgical specimen. MATERIAL AND METHODS Three sets of tissue-marking dyes: 2 imported sets and 1 experimental set, each containing red, orange, yellow, green, blue, purple, and black dyes, and a set of decorative acrylic paints containing black, blue, light blue, green, yellow, ocher, orange, magenta, and purple dyes. The experimental dyes and imported ones were used to mark tonsillar fragments obtained at tonsillectomy. The set of experimental dyes and that of decorative acrylic paints were used to stain the fragments of autopsy specimens (the skeletal muscles, pancreas, and large bowel). The tissues obtained at autopsy were marked before and after fixation in 40% formalin for 30 min and 24 hours. The specimens were subjected to standard tissue processing. Paraffin blocks were cut into 5-μm sections that were stained with hematoxylin and eosin. To estimate resection margin marking, each specimen was examined by 7 researchers who independently assessed the covering ability of a dye and its color in the paraffin block and microslides. RESULTS All researchers correctly identified purple, black, and green colors from the three sets of dyes in the surgical tonsillar specimen. When examining the autopsy specimens, all the experts correctly recognized magenta and green decorative acrylic paints and black and blue experimental dyes. The time of fixation and the type of tissue did not affect the color of a dye in the paraffin block and tissue specimen. CONCLUSION Some of experimental dyes and decorative acrylic paints are highly competitive with imported tissue-marking dyes in their characteristics, are correctly recognized in the block and tissue specimen under a microscope, and can be proposed to mark the resection margins of the examined tissues.
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Affiliation(s)
- A I Khramtsov
- Department of Pathology, Rosalind Franklin University, Chicago, USA
| | - G F Khramtsova
- Hematology/Oncology Section, University of Chicago, Chicago, USA
| | - Z P Asaulenko
- Pathoanatomical Department of Clinical Molecular Morphology, E.E. Eichwald Clinic, I.I. Mechnikov North-Western State Medical University, Ministry of Health of Russia, Saint Petersburg, Russia
| | - A A Selentyeva
- Pathoanatomical Department of Clinical Molecular Morphology, E.E. Eichwald Clinic, I.I. Mechnikov North-Western State Medical University, Ministry of Health of Russia, Saint Petersburg, Russia
| | - I N Spiridonov
- Pathoanatomical Department of Clinical Molecular Morphology, E.E. Eichwald Clinic, I.I. Mechnikov North-Western State Medical University, Ministry of Health of Russia, Saint Petersburg, Russia
| | - R V Vorobyev
- Department of General Pathology, Pathoanatomical Bureau, Healthcare Committee of the Leningrad Region, Saint Petersburg, Russia
| | - M N Kuzmin
- Department of Pathology, L.G. Sokolov Clinical Hospital One Hundred and Twenty-Two, Federal Biomedical Agency of Russia, Saint Petersburg, Russia
| | - Yu A Krivolapov
- Pathoanatomical Department of Clinical Molecular Morphology, E.E. Eichwald Clinic, I.I. Mechnikov North-Western State Medical University, Ministry of Health of Russia, Saint Petersburg, Russia
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Harada T, Nakamura Y, Sato K, Nagaya T, Choyke PL, Seto Y, Kobayashi H. Surgical tissue handling methods to optimize ex vivo fluorescence with the activatable optical probe γ-glutamyl hydroxymethyl rhodamine green. Contrast Media Mol Imaging 2016; 11:572-578. [PMID: 27444370 DOI: 10.1002/cmmi.1705] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 05/03/2016] [Accepted: 06/02/2016] [Indexed: 11/09/2022]
Abstract
Optical fluorescence imaging has been developed as an aid to intraoperative diagnosis to improve surgical and endoscopic procedures. Compared with other intraoperative imaging methods, it is lower in cost, has a high safety margin, is portable and easy to use. γ-glutamyl hydroxymethyl rhodamine green (gGlu-HMRG) is a recently developed activatable fluorescence probe that emits strong fluorescence in the presence of the enzyme γ-glutamyl transpeptidase (GGT), which is overexpressed in many cancers, including ovarian cancer. Ex vivo testing is important for clinical approval of such probes. The diagnostic performance of gGlu-HMRG in fresh excised surgical specimens has been reported; however, details of tissue handling have not been optimized. In this study, we investigated four different tissue handling procedures to optimize imaging in excised tumor specimens. The fluorescence intensity time courses after the different tissue handling methods were compared. Additionally, the fluorescence positive areas were correlated with the presence of red fluorescent protein (RFP) in an RFP positive cell line as the standard of reference for cancer location. In the 'intact' groups, tumors yielded quick and homogeneous activation of gGlu-HMRG. In the 'rinse' and 'cut' groups, the fluorescence intensity of the tumor was a little lower than that in the intact group. In the 'pressed' groups, however, fluorescence intensity from gGlu-HMRG was lower over the entire time course, suggesting a decrease or relocation of excreted GGT. In conclusion, we demonstrate that the method of tissue handling prior to ex vivo imaging with the activatable probe gGlu-HMRG has a strong influence on the signal derived from the specimen. Published 2016. This article is a U.S. Government work and is in the public domain in the USA.
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Affiliation(s)
- Toshiko Harada
- Molecular Imaging Program, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD20892, USA
| | - Yuko Nakamura
- Molecular Imaging Program, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD20892, USA
| | - Kazuhide Sato
- Molecular Imaging Program, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD20892, USA
| | - Tadanobu Nagaya
- Molecular Imaging Program, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD20892, USA
| | - Peter L Choyke
- Molecular Imaging Program, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD20892, USA
| | - Yasuyuki Seto
- Department of Stomach and Esophageal Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, 113, Japan
| | - Hisataka Kobayashi
- Molecular Imaging Program, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD20892, USA
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Abstract
Mislabeled surgical specimens jeopardize patient safety and quality care. The purpose of this project was to determine whether labeling surgical specimens with two patient identifiers would result in an 80% reduction in specimen labeling errors within six months and a 100% reduction in errors within 12 months. Our failure mode effects analysis found that the lack of two patient identifiers per label was the most unsafe step in our specimen handling process. We piloted and implemented a new process in the OR using the Plan-Do-Check-Act conceptual framework. The audit process included collecting data and making direct observations to determine the sustainability of the process change; however, the leadership team halted the direct observation audit after four months. The total number of surgical specimen labeling errors was reduced by only 60% within six months and 62% within 12 months; therefore, the goal of the project was not met. However, OR specimen labeling errors were reduced.
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Anagnostopoulos AK, Papathanassiou C, Karamolegou K, Anastasiadou E, Dimas KS, Kontos H, Koutsopoulos A, Prodromou N, Tzortzatou-Stathopoulou F, Tsangaris GT. Proteomic studies of pediatric medulloblastoma tumors with 17p deletion. J Proteome Res 2015; 14:1076-88. [PMID: 25543836 DOI: 10.1021/pr501219f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [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: 02/08/2023]
Abstract
CNS tumors are the leading cause of cancer-related death in children. Medulloblastoma is the commonest pediatric CNS malignancy, wherein, despite multimodal therapy with surgery, radiation, and chemotherapy, 5 year survival rates merely approach 60%. Until present, gene expression and cytogenetic studies have produced contradicting findings regarding the molecular background of the specific disease. Through integration of genomics, bioinformatics, and proteomics, the current study aims to shed light at the proteomic-related molecular events responsible for MBL pathophysiology, as well as to provide molecular/protein/pathway answers concerning tumor-onset. Experiments were performed on tissues collected at surgery. With 17p loss being the commonest chromosomal aberrance observed in our sample set, array-CGH were employed to first distinguish for 17p-positive cases. 2-DE coupled to mass spectrometry identification exposed the MBL-specific protein profile. Protein profiles of malignant tissues were compared against profiles of normal cerebellar tissues, and quantitative protein differences were determined. Bioinformatics, functional and database analyses, characterization, and subnetwork profiling generated information on MBL protein interactions. Key molecules of the PI3K/mTOR signaling network were identified via the techniques applied herein. Among the findings IGF2, PI3K, Rictor, MAPKAP1, S6K1, 4EBP1, and ELF4A, as part of the IGF network (implicating PI3K/mTOR), were founded to be deregulated.
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Affiliation(s)
- Athanasios K Anagnostopoulos
- Proteomics Research Unit, Center of Basic Research II, Biomedical Research Foundation of the Academy of Athens , Athens 115 27, Greece
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Graybill-D'Ercole P. RP implementation: specimen management. AORN J 2014; 100:625-33; quiz 634-6. [PMID: 25453682 DOI: 10.1016/j.aorn.2014.10.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 10/07/2014] [Accepted: 10/07/2014] [Indexed: 11/25/2022]
Abstract
Effective specimen management in the perioperative setting is essential for accurate patient diagnosis and intervention. AORN's "Recommended practices for specimen management" provides guidance to help perioperative nurses, in collaboration with a multidisciplinary team, implement a specimen management process that includes a needs assessment, site identification, collection and handling, transfer from the sterile field, containment, specimen identification and labeling, preservation, transport, disposition, and documentation. Accurate specimen management requires effective multidisciplinary communication and an awareness of the potential opportunities for error. Specimens discussed in the recommended practices document include breast cancer specimens, amputated digits and limbs to be reattached, forensic and radioactive specimens, and explanted medical devices and orthopedic hardware. The recommendations are applicable to both hospital and ambulatory settings.
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Duechler M, Peczek L, Szubert M, Suzin J. Influence of hypoxia inducible factors on the immune microenvironment in ovarian cancer. Anticancer Res 2014; 34:2811-2819. [PMID: 24922644] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND Ovarian tumors remain immunogenic even at advanced stages, but cancer-induced immunosuppression abrogates immune surveillance. The composition of the immune microenvironment in ovarian tumors was characterized by analyzing selected immunosuppressive factors in specimens from cancer patients. The influence of the hypoxia inducible factors on the immune microenvironment was also addressed. MATERIALS AND METHODS Tumor tissue was collected from 21 ovarian cancer patients immediately following tumor excision during surgery. The mRNA expression of selected genes was quantified, and tumor infiltrating leukocytes were characterized by flow cytometry to identify regulatory T-cells, myeloid-derived suppressor cells, and type-2 macrophages. RESULTS Overall, a pronounced heterogeneity was found among the analyzed samples. Nevertheless, statistical analysis revealed that the expression of hypoxia inducible factors correlated with the transcription levels of several immunosuppressive molecules. CONCLUSION The activity of hypoxia inducible factors contributes to cancer immunosuppression in ovarian cancer patients.
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MESH Headings
- Adenocarcinoma/immunology
- Adenocarcinoma/metabolism
- Adenocarcinoma/pathology
- Adenocarcinoma, Mucinous/immunology
- Adenocarcinoma, Mucinous/metabolism
- Adenocarcinoma, Mucinous/pathology
- Basic Helix-Loop-Helix Transcription Factors/genetics
- Basic Helix-Loop-Helix Transcription Factors/metabolism
- Biomarkers, Tumor/metabolism
- Cystadenocarcinoma, Serous/immunology
- Cystadenocarcinoma, Serous/metabolism
- Cystadenocarcinoma, Serous/pathology
- Endometrial Neoplasms/immunology
- Endometrial Neoplasms/metabolism
- Endometrial Neoplasms/pathology
- Female
- Flow Cytometry
- Humans
- Hypoxia
- Hypoxia-Inducible Factor 1, alpha Subunit/genetics
- Hypoxia-Inducible Factor 1, alpha Subunit/metabolism
- Immunosuppression Therapy
- Macrophages/immunology
- Macrophages/metabolism
- Macrophages/pathology
- Middle Aged
- Myeloid Cells/immunology
- Neoplasm Grading
- Neoplasm Staging
- Ovarian Neoplasms/immunology
- Ovarian Neoplasms/metabolism
- Ovarian Neoplasms/pathology
- Prognosis
- RNA, Messenger/genetics
- Real-Time Polymerase Chain Reaction
- Reverse Transcriptase Polymerase Chain Reaction
- T-Lymphocytes, Regulatory/immunology
- Tumor Microenvironment
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Affiliation(s)
- Markus Duechler
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Lodz, Poland
| | - Lukasz Peczek
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Lodz, Poland
| | - Maria Szubert
- Department of Gynaecology and Obstetrics of the Medical University of Lodz, Clinical Department of Operative and Oncological Gynaecology, Lodz, Poland
| | - Jacek Suzin
- Department of Gynaecology and Obstetrics of the Medical University of Lodz, Clinical Department of Operative and Oncological Gynaecology, Lodz, Poland
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Ito S, Takao M, Hatsuta H, Kanemaru K, Arai T, Saito Y, Fukayama M, Murayama S. Alpha-synuclein immunohistochemistry of gastrointestinal and biliary surgical specimens for diagnosis of Lewy body disease. Int J Clin Exp Pathol 2014; 7:1714-1723. [PMID: 24817969 PMCID: PMC4014253] [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] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Accepted: 03/02/2014] [Indexed: 06/03/2023]
Abstract
In Lewy body disease, Lewy pathology (LP: the accumulation of α-synuclein in neuronal perikarya and processes as Lewy bodies and Lewy neurites and dots, respectively) is observed in the central and peripheral nervous systems. Previous autopsy or biopsy studies of individuals with Lewy body diseases (LBDs) indicated that LP could be observed in the peripheral nerves of the gastrointestinal (GI) systems. The aim of this study is to clarify whether examination of GI and biliary surgical specimens would be useful for diagnosing LBD. We analyzed eight patients diagnosed clinically with LBD and with medical histories of GI or biliary surgery at our hospital. LP was identified by using α-synuclein immunohistochemistry in GI and biliary surgical specimens obtained before, at or after the clinical onset of LBD. LP was frequently observed in Auerbach's plexus, Meissner's plexus and the subserosal nerve fascicles within the GI and biliary surgical specimens. LP was observed in the specimens obtained 7 years before the onset of LBD. Our approach does not require any invasive procedures for patients. The immunohistochemical analysis of anti- α-synuclein antibody to archival GI or biliary surgical specimens from patients with clinically suspected LBD may contribute to clinical diagnosis of LBD.
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Affiliation(s)
- Shinji Ito
- Department of Neuropathology, Tokyo Metropolitan Geriatric Hospital and Institute of GerontologyTokyo, Japan
- Department of Pathology, Graduate School of Medicine, The University of TokyoTokyo, Japan
| | - Masaki Takao
- Department of Neuropathology, Tokyo Metropolitan Geriatric Hospital and Institute of GerontologyTokyo, Japan
| | - Hiroyuki Hatsuta
- Department of Neuropathology, Tokyo Metropolitan Geriatric Hospital and Institute of GerontologyTokyo, Japan
- Department of Pathology, Tokyo Metropolitan Geriatric Hospital and Institute of GerontologyTokyo, Japan
| | - Kazutomi Kanemaru
- Department of Neurology, Tokyo Metropolitan Geriatric Hospital and Institute of GerontologyTokyo, Japan
| | - Tomio Arai
- Department of Pathology, Tokyo Metropolitan Geriatric Hospital and Institute of GerontologyTokyo, Japan
| | - Yuko Saito
- Department of Laboratory Medicine, National Center for Neurology and PsychiatryTokyo, Japan
| | - Masashi Fukayama
- Department of Pathology, Graduate School of Medicine, The University of TokyoTokyo, Japan
| | - Shigeo Murayama
- Department of Neuropathology, Tokyo Metropolitan Geriatric Hospital and Institute of GerontologyTokyo, Japan
- Department of Neurology, Tokyo Metropolitan Geriatric Hospital and Institute of GerontologyTokyo, Japan
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