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Maruyama S, Yamazaki M, Abé T, Cheng J, Saku T, Tanuma JI. Hypoxia-Induced Biosynthesis of the Extracellular Matrix Molecules, Perlecan and Fibronectin, Promotes the Growth of Pleomorphic Adenoma Cells In Vitro Models. Biomedicines 2023; 11:2981. [PMID: 38001981 PMCID: PMC10669301 DOI: 10.3390/biomedicines11112981] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 10/25/2023] [Accepted: 10/30/2023] [Indexed: 11/26/2023] Open
Abstract
Salivary pleomorphic adenoma is histopathologically characterized by its colorful stroma with myxoid, chondroid, and hyaline appearances, due to enhanced biosynthesis of extracellular matrix (ECM) molecules and poor vascularity. Thus, pleomorphic adenoma cells embedded in the stroma typically survive under hypoxic conditions. We determined the expression kinetics of ECM molecules, such as perlecan and fibronectin (FN), under hypoxia in SM-AP1 cells which are duct epithelial differentiated cells, and in SM-AP4 cells, which are myoepithelial differentiated cells, cloned from pleomorphic adenoma of the parotid gland. We investigated hypoxia-inducible factor-1α (HIF-1α)-inducing pathways through a variety of ECM molecules in association with their cellular proliferation and migration. We observed that hypoxic conditions with elevated HIF-1α protein levels induced increased expression of perlecan and FN in SM-AP cells than in controls. Moreover, perlecan and FN knockdown reduced the proliferation of SM-AP1 and SM-AP4 cells under hypoxia. Further, SM-AP1 cell migration was enhanced by both perlecan and FN knockdown, whereas SM-AP4 cell migration was increased by perlecan knockdown and inhibited by fibronectin knockdown. The results indicated that pleomorphic adenoma cells can survive under hypoxic conditions by promoting cell proliferation via enhanced synthesis of ECM molecules. Overall, ECM molecules may be a new anti-tumor target under hypoxic conditions.
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Affiliation(s)
- Satoshi Maruyama
- Oral Pathology Section, Department of Surgical Pathology, Niigata University Hospital, 1-754 Asahimachi-dori, Chuo-ku, Niigata 951-8520, Japan
| | - Manabu Yamazaki
- Division of Oral Pathology, Department of Tissue Regeneration and Reconstruction, Faculty of Dentistry & Niigata University Graduate School of Medical and Dental Sciences, 2-5274 Gakkoucho-dori, Chuo-ku, Niigata 951-8514, Japan (T.A.); (J.-i.T.)
| | - Tatsuya Abé
- Division of Oral Pathology, Department of Tissue Regeneration and Reconstruction, Faculty of Dentistry & Niigata University Graduate School of Medical and Dental Sciences, 2-5274 Gakkoucho-dori, Chuo-ku, Niigata 951-8514, Japan (T.A.); (J.-i.T.)
| | - Jun Cheng
- Division of Oral Pathology, Department of Tissue Regeneration and Reconstruction, Faculty of Dentistry & Niigata University Graduate School of Medical and Dental Sciences, 2-5274 Gakkoucho-dori, Chuo-ku, Niigata 951-8514, Japan (T.A.); (J.-i.T.)
| | - Takashi Saku
- PCL Fukuoka Pathology Cytology Center, 4-11-32 Yoshizuka, Hakata-ku, Fukuoka 812-0041, Japan
| | - Jun-ichi Tanuma
- Division of Oral Pathology, Department of Tissue Regeneration and Reconstruction, Faculty of Dentistry & Niigata University Graduate School of Medical and Dental Sciences, 2-5274 Gakkoucho-dori, Chuo-ku, Niigata 951-8514, Japan (T.A.); (J.-i.T.)
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2
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Xia RH, Zhang CY, Wang LZ, Hu YH, Sun JJ, Tian Z, Li J. Adenoid cystic carcinoma in children and young adults: A clinicopathological study of 12 cases. Oral Dis 2023; 29:3289-3297. [PMID: 35818778 DOI: 10.1111/odi.14311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 05/19/2022] [Accepted: 07/08/2022] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To investigate the clinicopathological characteristics, immunoprofile, and molecular alterations of adenoid cystic carcinoma (ACC) in children and young adults. MATERIALS AND METHODS Twelve cases of ACC were included. MYB, MYBL1, Ki-67, type IV Collagen, Laminin, and LAMB1 expression were detected by immunohistochemistry. MYB and MYBL1 rearrangements were detected by fluorescence in situ hybridization. RESULTS Among 12 patients, four were female and eight were male. Seven cases (58.3%) located in major salivary glands and eight cases (66.7%) were classified as Grade I. Ten tumors (83.3%) had collagenous and hyalinized stroma. MYB was positive in 83.3% cases, and the average Ki-67 labeling index (LI) was 8.3%. LAMB1, type IV Collagen, and Laminin were positive in 91.7%, 66.7%, and 58.3% cases, respectively. Besides, three out of eight tumors had MYB rearrangement. Cases without MYB rearrangement were negative for MYBL1 expression and MYBL1 rearrangement. The average follow-up time was 91.8 months. Four patients had recurrent diseases. CONCLUSIONS ACC in children and young adults was seen more frequently in males and major salivary glands. Most cases had ECM and hyaline stroma. Grade III tumors, higher Ki-67 LI, negative expression of type IV Collagen, and Laminin showed a tendency of higher recurrence rate.
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Affiliation(s)
- Rong-Hui Xia
- Department of Oral Pathology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
- Shanghai Institute of Precision Medicine, Shanghai, China
| | - Chun-Ye Zhang
- Department of Oral Pathology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Li-Zhen Wang
- Department of Oral Pathology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Yu-Hua Hu
- Department of Oral Pathology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Jing-Jing Sun
- Department of Oral Pathology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Zhen Tian
- Department of Oral Pathology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Jiang Li
- Department of Oral Pathology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
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3
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Activating IGF1R hotspot non-frameshift insertions define a novel, potentially targetable molecular subtype of adenoid cystic carcinoma. Mod Pathol 2022; 35:1618-1623. [PMID: 35970994 DOI: 10.1038/s41379-022-01126-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 06/01/2022] [Accepted: 06/03/2022] [Indexed: 11/08/2022]
Abstract
Activation of the tyrosine kinase receptor IGF1R is targetable with existing tyrosine kinase inhibitors (TKIs) and monoclonal antibodies, but mutations in IGF1R have not been systematically characterized. Pan-cancer analysis of 326,911 tumors identified two distinct, activating non-frameshift insertion hotspots in IGF1R, which were significantly enriched in adenoid cystic carcinomas (ACCs). IGF1R alterations from 326,911 subjects were analyzed by variant effect prediction class, position within the gene, and cancer type. 6502 (2.0%) samples harbored one or more alterations in IGF1R. Two regions were enriched for non-frameshift insertions: codons 663-666 at the hinge region of the fibronectin type 3 domain and codons 1034-1049 in the tyrosine kinase domain. Hotspot insertions were highly enriched in ACCs (27.3-fold higher than in the remainder of the pan-cancer dataset; P = 2.3 × 10-17). Among salivary gland tumors, IGF1R hotspot insertions were entirely specific to ACCs. IGF1R alterations were most often mutually exclusive with other ACC drivers (9/15, 60%). Tumors with non-frameshift hotspot IGF1R insertions represent a novel, potentially targetable subtype of ACC. Additional studies are needed to determine whether these patients respond to existing IGF1R inhibitors.
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4
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Porcheri C, Meisel CT, Mitsiadis TA. Molecular and Cellular Modelling of Salivary Gland Tumors Open New Landscapes in Diagnosis and Treatment. Cancers (Basel) 2020; 12:E3107. [PMID: 33114321 PMCID: PMC7690880 DOI: 10.3390/cancers12113107] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 10/19/2020] [Accepted: 10/20/2020] [Indexed: 02/06/2023] Open
Abstract
Salivary gland tumors are neoplasms affecting the major and minor salivary glands of the oral cavity. Their complex pathological appearance and overlapping morphological features between subtypes, pose major challenges in the identification, classification, and staging of the tumor. Recently developed techniques of three-dimensional culture and organotypic modelling provide useful platforms for the clinical and biological characterization of these malignancies. Additionally, new advances in genetic and molecular screenings allow precise diagnosis and monitoring of tumor progression. Finally, novel therapeutic tools with increased efficiency and accuracy are emerging. In this review, we summarize the most common salivary gland neoplasms and provide an overview of the state-of-the-art tools to model, diagnose, and treat salivary gland tumors.
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Affiliation(s)
- Cristina Porcheri
- Orofacial Development and Regeneration, Institute of Oral Biology, University of Zurich, Plattenstrasse 11, 8032 Zurich, Switzerland; (C.T.M.); (T.A.M.)
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5
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Ginter PS, Tang X, Shin SJ. A review of mucinous lesions of the breast. Breast J 2020; 26:1168-1178. [PMID: 32419267 DOI: 10.1111/tbj.13878] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 04/23/2020] [Indexed: 11/28/2022]
Abstract
Mucinous lesions of the breast include a variety of benign and malignant epithelial processes that display intracytoplasmic or extracellular mucin, including mucocele-like lesions, mucinous carcinoma, solid papillary carcinoma, and other rare subtypes of mucin-producing carcinoma. The finding of free-floating or stromal mucin accumulations is a diagnostic challenge of which the significance depends on the clinical, radiologic, and pathologic context. This article emphasizes the differential diagnosis between benign and malignant mucin-producing lesions, with a brief consideration of potential mimics, such as biphasic and mesenchymal lesions with associated with mucinous, myxoid, or matrix material.
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Affiliation(s)
- Paula S Ginter
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Xiaoyu Tang
- Department of Pathology and Laboratory Medicine, Albany Medical College, Albany, NY, USA
| | - Sandra J Shin
- Department of Pathology and Laboratory Medicine, Albany Medical College, Albany, NY, USA
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6
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Noda Y, Nakanishi Y, Nishimae A, Takahashi H, Oshiro C, Inaji H, Yamasaki M. Fine-needle aspiration cytology for the diagnosis of solid basaloid adenoid cystic carcinoma of the breast: Its role, limitation, and perspective. Diagn Cytopathol 2020; 48:652-656. [PMID: 32181598 DOI: 10.1002/dc.24414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 02/11/2020] [Accepted: 03/05/2020] [Indexed: 12/11/2022]
Abstract
Solid basaloid adenoid cystic carcinoma (SB-AdCC) is a subtype of breast AdCC which shows more aggressive clinical behavior than other subtypes. Fine-needle aspiration (FNA) cytology is a useful diagnostic tool for breast malignancies. However, most of the diagnostic cytological characteristics of AdCC are not present in SB-AdCC and cytomorphological studies of this subtype are limited. Here, we evaluated the utility of FNA in the diagnosis of SB-AdCC of the breast. A search of the pathology archives of our institutions for FNA specimens of histologically confirmed SB-AdCC between 2012 and 2019 identified four patients with SB-AdCC of the breast. All patients were female and the average age was 60 years. Cytologically, one case was classified as malignant, two as indeterminate, and one as unsatisfactory. Smears had low to moderate cellularity. All smears showed ribbon-like material surrounding the clusters and a vertical nuclear arrangement toward the peripheral rim. Hyaline globules appeared only in one case. Cells in all cases showed an oval, angular, and spindle shape hyperchromatic nuclei with mild to severe atypia, and also dispersed naked nuclei similar to the cells of the clusters were detected in one case. In histological sections, these cytological findings were compatible with the histological findings and divergent histological differentiation was detected. Diagnosing of few cellular smears of SB-AdCC is difficult whereas the features of peripheral rim of the clusters, naked nuclei, and the divergent differentiation may be important for diagnosing SB-AdCC of the breast.
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Affiliation(s)
- Yuri Noda
- Department of Diagnostic Pathology, Kaizuka City Hospital, Osaka, Japan
| | - Yuko Nakanishi
- Department of Clinical Laboratory, Kaizuka City Hospital, Osaka, Japan
| | - Ayaka Nishimae
- Department of Breast Surgery, Kaizuka City Hospital, Osaka, Japan
| | - Hiroyo Takahashi
- Department of Breast Surgery, Kaizuka City Hospital, Osaka, Japan
| | - Chiya Oshiro
- Department of Breast Surgery, Kaizuka City Hospital, Osaka, Japan
| | - Hideo Inaji
- Department of Breast Surgery, Kaizuka City Hospital, Osaka, Japan
| | - Masaru Yamasaki
- Department of Diagnostic Pathology, Kaizuka City Hospital, Osaka, Japan
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7
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Chang CF, Hsieh MY, Chen MK, Chou MC. Adenoid cystic carcinoma of head and neck: A retrospective clinical analysis of a single institution. Auris Nasus Larynx 2018; 45:831-837. [PMID: 29653784 DOI: 10.1016/j.anl.2017.10.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Revised: 10/03/2017] [Accepted: 10/16/2017] [Indexed: 12/31/2022]
Abstract
Objective In this study, patients with head and neck adenoid
cystic carcinoma were investigated with respect to disease
characteristics, treatments, and potentially prognostic variables. Materials and Methods Between January 1995 and
December 2010, 29 patients with ACC of the head and neck
treated at our institution were retrospectively reviewed. Results The 29 patients had a mean age of 54.7 years. Of the
29 patients, 4 (13.8%) underwent surgical resection only, 21
(72.4%) underwent surgery with radiotherapy, and 4 (13.8%)
received postoperative chemoradiotherapy. Of 9 patients
(31.0%) who experienced a recurrence within the follow-up
period, 3 (10.3%) had local recurrence and 5 (17.2%) had
distant metastasis; 1 (3.4%) patient had both local recurrence
and distant metastatic spread. Conclusion ACC is a relatively rare tumor associated
with long survival, even in metastatic settings. Despite
aggressive therapy with surgery, radiotherapy, and chemo-
therapy, a marked potential for local and distant recurrence
still remains.
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Affiliation(s)
- Chin-Fang Chang
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; Department of Otorhinolaryngology, Head and Neck Surgery, Jen-Ai Hospital, Taichung 400, Taiwan; Central Taiwan University of Science and Technology, Taichung, Taiwan.
| | - Ming-Yu Hsieh
- Department of Otorhinolaryngology, Head and Neck Surgery, Changhua Christian Hospital, Changhua, Taiwan.
| | - Mu-Kuan Chen
- School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; Department of Otorhinolaryngology, Head and Neck Surgery, Changhua Christian Hospital, Changhua, Taiwan.
| | - Ming-Chih Chou
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan; School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan.
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8
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Chahal M, Pleasance E, Grewal J, Zhao E, Ng T, Chapman E, Jones MR, Shen Y, Mungall KL, Bonakdar M, Taylor GA, Ma Y, Mungall AJ, Moore RA, Lim H, Renouf D, Yip S, Jones SJM, Marra MA, Laskin J. Personalized oncogenomic analysis of metastatic adenoid cystic carcinoma: using whole-genome sequencing to inform clinical decision-making. Cold Spring Harb Mol Case Stud 2018; 4:mcs.a002626. [PMID: 29610392 PMCID: PMC5880267 DOI: 10.1101/mcs.a002626] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 02/13/2018] [Indexed: 12/19/2022] Open
Abstract
Metastatic adenoid cystic carcinomas (ACCs) can cause significant morbidity and mortality. Because of their slow growth and relative rarity, there is limited evidence for systemic therapy regimens. Recently, molecular profiling studies have begun to reveal the genetic landscape of these poorly understood cancers, and new treatment possibilities are beginning to emerge. The objective is to use whole-genome and transcriptome sequencing and analysis to better understand the genetic alterations underlying the pathology of metastatic and rare ACCs and determine potentially actionable therapeutic targets. We report five cases of metastatic ACC, not originating in the salivary glands, in patients enrolled in the Personalized Oncogenomics (POG) Program at the BC Cancer Agency. Genomic workup included whole-genome and transcriptome sequencing, detailed analysis of tumor alterations, and integration with existing knowledge of drug–target combinations to identify potential therapeutic targets. Analysis reveals low mutational burden in these five ACC cases, and mutation signatures that are commonly observed in multiple cancer types. Notably, the only recurrent structural aberration identified was the well-described MYB-NFIB fusion that was present in four of five cases, and one case exhibited a closely related MYBL1-NFIB fusion. Recurrent mutations were also identified in BAP1 and BCOR, with additional mutations in individual samples affecting NOTCH1 and the epigenetic regulators ARID2, SMARCA2, and SMARCB1. Copy changes were rare, and they included amplification of MYC and homozygous loss of CDKN2A in individual samples. Genomic analysis revealed therapeutic targets in all five cases and served to inform a therapeutic choice in three of the cases to date.
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Affiliation(s)
- Manik Chahal
- Department of Medicine, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Erin Pleasance
- British Columbia Cancer Agency, Canada's Michael Smith Genome Sciences Centre, Vancouver, British Columbia V5Z 4E6, Canada
| | - Jasleen Grewal
- British Columbia Cancer Agency, Canada's Michael Smith Genome Sciences Centre, Vancouver, British Columbia V5Z 4E6, Canada
| | - Eric Zhao
- British Columbia Cancer Agency, Canada's Michael Smith Genome Sciences Centre, Vancouver, British Columbia V5Z 4E6, Canada
| | - Tony Ng
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
| | - Erin Chapman
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
| | - Martin R Jones
- British Columbia Cancer Agency, Canada's Michael Smith Genome Sciences Centre, Vancouver, British Columbia V5Z 4E6, Canada
| | - Yaoqing Shen
- British Columbia Cancer Agency, Canada's Michael Smith Genome Sciences Centre, Vancouver, British Columbia V5Z 4E6, Canada
| | - Karen L Mungall
- British Columbia Cancer Agency, Canada's Michael Smith Genome Sciences Centre, Vancouver, British Columbia V5Z 4E6, Canada
| | - Melika Bonakdar
- British Columbia Cancer Agency, Canada's Michael Smith Genome Sciences Centre, Vancouver, British Columbia V5Z 4E6, Canada
| | - Gregory A Taylor
- British Columbia Cancer Agency, Canada's Michael Smith Genome Sciences Centre, Vancouver, British Columbia V5Z 4E6, Canada
| | - Yussanne Ma
- British Columbia Cancer Agency, Canada's Michael Smith Genome Sciences Centre, Vancouver, British Columbia V5Z 4E6, Canada
| | - Andrew J Mungall
- British Columbia Cancer Agency, Canada's Michael Smith Genome Sciences Centre, Vancouver, British Columbia V5Z 4E6, Canada
| | - Richard A Moore
- British Columbia Cancer Agency, Canada's Michael Smith Genome Sciences Centre, Vancouver, British Columbia V5Z 4E6, Canada
| | - Howard Lim
- British Columbia Cancer Agency, Division of Medical Oncology, Vancouver, British Columbia V5Z 4E6, Canada
| | - Daniel Renouf
- British Columbia Cancer Agency, Division of Medical Oncology, Vancouver, British Columbia V5Z 4E6, Canada
| | - Stephen Yip
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
| | - Steven J M Jones
- British Columbia Cancer Agency, Canada's Michael Smith Genome Sciences Centre, Vancouver, British Columbia V5Z 4E6, Canada.,Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada.,Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - Marco A Marra
- British Columbia Cancer Agency, Canada's Michael Smith Genome Sciences Centre, Vancouver, British Columbia V5Z 4E6, Canada.,Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada
| | - Janessa Laskin
- British Columbia Cancer Agency, Division of Medical Oncology, Vancouver, British Columbia V5Z 4E6, Canada
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9
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Abstract
Mucinous lesions of the breast include a variety of benign and malignant epithelial processes that display intracytoplasmic or extracellular mucin, including mucocelelike lesions, mucinous carcinoma, solid papillary carcinoma, and other rare subtypes of mucin-producing carcinoma. The most important diagnostic challenge is the finding of free-floating or stromal mucin accumulations for which the significance depends on the clinical, radiologic, and pathologic context. This article emphasizes the differential diagnosis between mucocelelike lesions and mucinous carcinoma, with a brief consideration of potential mimics, such as biphasic and mesenchymal lesions with myxoid stroma ("stromal mucin") and foreign material.
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Affiliation(s)
- Beth T Harrison
- Department of Pathology, Brigham and Women's Hospital, 75 Francis Street, Amory 3, Boston, MA 02115, USA.
| | - Deborah A Dillon
- Department of Pathology, Brigham and Women's Hospital, 75 Francis Street, Amory 3, Boston, MA 02115, USA
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10
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Ida-Yonemochi H, Ohshiro K, Swelam W, Metwaly H, Saku T. Perlecan, a Basement Membrane-type Heparan Sulfate Proteoglycan, in the Enamel Organ: Its Intraepithelial Localization in the Stellate Reticulum. J Histochem Cytochem 2016; 53:763-72. [PMID: 15928325 DOI: 10.1369/jhc.4a6479.2005] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The localization and biosynthesis of perlecan, a basement membrane-type heparan sulfate proteoglycan, were studied in developing tooth germs by using murine molars in neonatal and postnatal stages and primary cultured cells of the enamel organ and dental papilla to demonstrate the role of perlecan in normal odontogenesis. Perlecan was immunolocalized mainly in the intercellular spaces of the enamel organ as well as in the dental papilla/pulp or in the dental follicle. By in situ hybridization, mRNA signals for perlecan core protein were intensely demonstrated in the cytoplasm of stellate reticulum cells and in dental papilla/pulp cells, including odontoblasts and fibroblastic cells in the dental follicle. Furthermore, the in vitro biosyntheses of perlecan core protein by the enamel organ and dental papilla/pulp cells were confirmed by immunofluorescence, immunoprecipitation, and reverse transcriptase-polymerase chain reaction. The results indicate that perlecan is synthesized by the dental epithelial cells and is accumulated in their intercellular spaces to form the characteristic stellate reticulum, whose function is still unknown.
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Affiliation(s)
- Hiroko Ida-Yonemochi
- Division of Oral Pathology, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, 2-5274 Gakkocho-dori, Niigata 951-8126, Japan
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11
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Essa AAM, Yamazaki M, Maruyama S, Abé T, Babkair H, Raghib AM, Megahed EMED, Cheng J, Saku T. Tumour-associated macrophages are recruited and differentiated in the neoplastic stroma of oral squamous cell carcinoma. Pathology 2016; 48:219-27. [PMID: 27020496 DOI: 10.1016/j.pathol.2016.02.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Revised: 11/25/2015] [Accepted: 12/02/2015] [Indexed: 12/22/2022]
Abstract
To confirm our hypothesis that macrophages recruited to fight against oral squamous cell carcinoma (SCC) invasion are functionally differentiated within neoplastic stromata, we analysed arrangements of macrophage subtypes and cancer-associated fibroblasts (CAFs) in their association with blood vasculatures in the neoplastic stroma. Surgical specimens of oral SCC were immunohistochemically examined for macrophage phenotypes (CD68, CD163, and CD204) and stromal environments (perlecan, connexin 43, and CD31). Human monocytes were co-cultured with ZK-1 cells of oral SCC origin in different culture conditions. SCC stromata were divided into two types: fascicular (fibroblast-rich) and reticular (perlecan-rich). Regardless of stromal types, CD68 positive (+)/CD163+/CD204+ macrophages were recruited when blood vessels were abundant. Connexin 43+ fibroblasts were enriched in the fascicular stroma, where blood vessels were depleted. In co-culture experiments, monocytes, in the presence of ZK-1 cells, showed TNF-α(low)/IL-12(low) and IL-10(high)/VEGF(high)/MMP-9(high) with increased expression levels for fibronectin and perlecan. With direct contact with monocytes, SCC cells also expressed CD68 and CD163. SCC stromata were characterised by CD163+/CD204+ tumour-associated macrophages (TAMs) and connexin 43+ CAFs. TAMs are differentiated from monocytes by the physical contact with oral SCC cells in the perlecan-rich neoplastic stroma, which is also induced by the cross-talk between SCC cells and stromal cells including TAMs.
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Affiliation(s)
- Ahmed Abdelaziz Mohamed Essa
- Division of Oral Pathology, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan; Department of Oral Pathology, Faculty of Dentistry, Tanta University, Tanta, Egypt
| | - Manabu Yamazaki
- Division of Oral Pathology, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Satoshi Maruyama
- Oral Pathology Section, Department of Surgical Pathology, Niigata University Hospital, Niigata, Japan
| | - Tatsuya Abé
- Division of Oral Pathology, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan; Oral Pathology Section, Department of Surgical Pathology, Niigata University Hospital, Niigata, Japan
| | - Hamzah Babkair
- Division of Oral Pathology, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Adel Mohamed Raghib
- Department of Oral Pathology, Faculty of Dentistry, Tanta University, Tanta, Egypt
| | | | - Jun Cheng
- Division of Oral Pathology, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Takashi Saku
- Division of Oral Pathology, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan; Oral Pathology Section, Department of Surgical Pathology, Niigata University Hospital, Niigata, Japan.
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12
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Coca-Pelaz A, Rodrigo JP, Bradley PJ, Vander Poorten V, Triantafyllou A, Hunt JL, Strojan P, Rinaldo A, Haigentz M, Takes RP, Mondin V, Teymoortash A, Thompson LDR, Ferlito A. Adenoid cystic carcinoma of the head and neck--An update. Oral Oncol 2015; 51:652-61. [PMID: 25943783 DOI: 10.1016/j.oraloncology.2015.04.005] [Citation(s) in RCA: 295] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 04/01/2015] [Accepted: 04/03/2015] [Indexed: 01/20/2023]
Abstract
This article provides an update on the current understanding of adenoid cystic carcinoma of the head and neck, including a review of its epidemiology, clinical behavior, pathology, molecular biology, diagnostic workup, treatment and prognosis. Adenoid cystic carcinoma is an uncommon salivary gland tumor that may arise in a wide variety of anatomical sites in the head and neck, often with an advanced stage at diagnosis. The clinical course is characterized by very late recurrences; consequently, clinical follow-up should extend at least >15 years. The optimal treatment is generally considered to be surgery with postoperative radiotherapy to optimize local disease control. Much effort has been invested into understanding the tumor's molecular biological processes, aiming to identify patients at high risk of recurrence, in hopes that they could benefit from other, still unproven treatment modalities such as chemotherapy or biological therapy.
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Affiliation(s)
- Andrés Coca-Pelaz
- Department of Otolaryngology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Juan P Rodrigo
- Department of Otolaryngology, Hospital Universitario Central de Asturias, Oviedo, Spain; Instituto Universitario de Oncología del Principado de Asturias, University of Oviedo, Spain
| | - Patrick J Bradley
- Department of Otorhinolaryngology-Head and Neck Surgery, Nottingham University Hospitals, Queens Medical Centre Campus, Nottingham, UK; European Salivary Gland Society, Geneva, Switzerland
| | - Vincent Vander Poorten
- European Salivary Gland Society, Geneva, Switzerland; Otorhinolaryngology-Head and Neck Surgery and Department of Oncology, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | | | - Jennifer L Hunt
- Department of Pathology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Primož Strojan
- Department of Radiation Oncology, Institute of Oncology, Ljubljana, Slovenia
| | | | - Missak Haigentz
- Department of Medicine, Division of Oncology, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, NY, USA
| | - Robert P Takes
- Department of Otolaryngology-Head and Neck Surgery, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Vanni Mondin
- University of Udine School of Medicine, Udine, Italy
| | - Afshin Teymoortash
- Department of Otolaryngology-Head and Neck Surgery, University of Marburg, Marburg, Germany
| | - Lester D R Thompson
- Department of Pathology, Woodland Hills Medical Center, Woodland Hills, CA, USA
| | - Alfio Ferlito
- University of Udine School of Medicine, Udine, Italy.
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Benhayoune K, El Fatemi H, Bannani A, Melhouf A, Harmouch T. Adenoid cystic carcinoma of cervix: two cases report and review of the literature. Pan Afr Med J 2015; 20:77. [PMID: 26090035 PMCID: PMC4450047 DOI: 10.11604/pamj.2015.20.77.5720] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Accepted: 01/05/2015] [Indexed: 11/30/2022] Open
Abstract
Adenoid cystic carcinoma of the cervix is a rare and aggressive tumor with fatal outcome. In this paper we report two cases of primary adenoid cystic carcinoma and a review of literature. A 80 years old woman, admitted to our hospital with postmenopausal bleeding and hydrorrhea. Gynealogical examination showed a cervical stenotic with the presence of a tumor processus. Biopsy of cervical growth was done. 80-year-old woman presented with vaginal bleeding with pelvic pain. Physical examination revealed a friable mass in the cervix. Incisional biopsy was performed. In the both cases the diagnosis of adenoid cystic carcinoma of the cercix was confirmed. Adenoid cystic carcinoma of the cervix is clinically and radiologically similar to other tumors of the cervix but the diagnosis can only be made by histological examination.
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Affiliation(s)
| | - Hinde El Fatemi
- Laboratory of Surgical Pathology, CHU Hassan II of Fez, Fez, Morocco
| | | | | | - Toufik Harmouch
- Laboratory of Surgical Pathology, CHU Hassan II of Fez, Fez, Morocco
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Pushpanjali M, Sujata DN, Subramanyam SB, Jyothsna M. Adenoid cystic carcinoma: An unusual presentation. J Oral Maxillofac Pathol 2014; 18:286-90. [PMID: 25328314 PMCID: PMC4196302 DOI: 10.4103/0973-029x.140796] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2013] [Accepted: 07/09/2014] [Indexed: 11/20/2022] Open
Abstract
The adenoid cystic carcinoma is a relatively rare epithelial tumor of the major and minor salivary glands, accounting for about 1% of all malignant tumor of the oral and maxillofacial regions. Peak incidence occurs between the 5th and 6th decades of life. The clinical and pathological findings typical of this tumor include slow growth, peri-neural invasion, multiple local recurrences and distant metastasis. Herein, we report a case of adenoid cystic carcinoma of oropharynx with unusual clinical presentation. The diagnosis of this case and importance of cytology in diagnosing such cases is discussed.
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Affiliation(s)
- M Pushpanjali
- Department of Oral and Maxillofacial Surgery, Government Dental College and Hospital, Rajiv Gandhi Institute of Medical Sciences, Kadapa, Andhra Pradesh, India
| | - D Naga Sujata
- Department of Oral and Maxillofacial Surgery, Government Dental College and Hospital, Rajiv Gandhi Institute of Medical Sciences, Kadapa, Andhra Pradesh, India
| | - S Bala Subramanyam
- Department of Oral and Maxillofacial Surgery, Government Dental College and Hospital, Rajiv Gandhi Institute of Medical Sciences, Kadapa, Andhra Pradesh, India
| | - M Jyothsna
- Department of Oral Pathology, Government Dental College and Hospital, Rajiv Gandhi Institute of Medical Sciences, Kadapa, Andhra Pradesh, India
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15
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Anupriya S, Mahesh P, Sharada P, Swaminathan U, Nagamalini BR, Hosthor SS. Immunohistochemical analysis of laminin expression in adenoid cystic carcinoma. J Oral Maxillofac Pathol 2014; 18:S26-31. [PMID: 25364175 PMCID: PMC4211234 DOI: 10.4103/0973-029x.141334] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2012] [Accepted: 06/06/2014] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND AND OBJECTIVES This study aims at the observation of the immunohistochemical expression of laminin in adenoid cystic carcinoma (ACC) of salivary gland origin and to analyze the distribution of laminin in various components of the tumor and correlate the expression of laminin with the growth and differentiation of the tumor. MATERIALS AND METHODS THIRTY CASES OF ACC WERE SUBJECTED TO IMMUNOHISTOCHEMICAL STUDY USING POLYCLONAL ANTIHUMAN LAMININ PRIMARY ANTIBODY, DISTRIBUTION OF LAMININ IN EACH CASE OF ACC WAS OBSERVED IN THE FOLLOWING AREAS: Intracellularly, inner borders of the pseudocystic spaces, within the lumen of the pseudocysts, around the tumor islands and in the intervening stroma. RESULTS Laminin positivity was observed in the inner aspect of the pseudocystic spaces in 15 cases, within the lumen of pseudocystic spaces in 22 cases, in the intervening stroma in 20 cases, bordering the tumor islands in 16 cases and intracellularly in 4 cases. INTERPRETATION AND CONCLUSION Based on these observations, it can be assumed that laminin plays a major role in proliferation of the tumor cells and in pseudocyst formation. Thus, laminin might play a significant role in the growth and differentiation of ACC and also help in assessing the prognosis of the tumor.
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Affiliation(s)
- S Anupriya
- Department of Oral and Maxillofacial Pathology, Amrith Educational and Cultutal Society Maaruti College of Dental Sciences and Research Centre, Bengaluru, Karnataka, India
| | - Pushpalatha Mahesh
- Department of Oral and Maxillofacial Pathology, Amrith Educational and Cultutal Society Maaruti College of Dental Sciences and Research Centre, Bengaluru, Karnataka, India
| | - P Sharada
- Department of Oral and Maxillofacial Pathology, Amrith Educational and Cultutal Society Maaruti College of Dental Sciences and Research Centre, Bengaluru, Karnataka, India
| | - Uma Swaminathan
- Department of Oral and Maxillofacial Pathology, Amrith Educational and Cultutal Society Maaruti College of Dental Sciences and Research Centre, Bengaluru, Karnataka, India
| | - BR Nagamalini
- Department of Oral and Maxillofacial Pathology, Amrith Educational and Cultutal Society Maaruti College of Dental Sciences and Research Centre, Bengaluru, Karnataka, India
| | - Sreelatha S Hosthor
- Department of Oral and Maxillofacial Pathology, Amrith Educational and Cultutal Society Maaruti College of Dental Sciences and Research Centre, Bengaluru, Karnataka, India
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16
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Maruyama S, Shimazu Y, Kudo T, Sato K, Yamazaki M, Abé T, Babkair H, Cheng J, Aoba T, Saku T. Three-dimensional visualization of perlecan-rich neoplastic stroma induced concurrently with the invasion of oral squamous cell carcinoma. J Oral Pathol Med 2014; 43:627-36. [PMID: 24697873 DOI: 10.1111/jop.12184] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/17/2014] [Indexed: 02/04/2023]
Abstract
BACKGROUND We have demonstrated the induction of perlecan-rich stroma of oral squamous cell carcinoma (SCC) on and after its start of invasion. However, it remains unknown how such a neoplastic stroma is actually arranged in tumor tissues. METHODS To this end, tissue microarray samples, in which keratin and perlecan were contrastively labeled by immunohistochemistry, were three-dimensionally analyzed using digital images and image analysis software to demonstrate the relationship between SCC foci and the perlecan-positive stromal space or that between carcinoma in situ (CIS) and invasive SCC foci. RESULTS The three-dimensional (3D) reconstruction demonstrated three kinds of perlecan profiles for inside (I) and outside (O) areas of the carcinoma cell focus: mode 1, I(+)/O(-) ; mode 2, I(+)/O(+) ; and mode 3, I(-)/O(+). Mode 1 was seen in CIS as well as SCC tumor massifs in the surface part. Mode 2 was seen in small SCC foci, which seemed isolated in 2D sections but were mostly continuous with the tumor massif in 3D reconstructions. Mode 3 was limited to small SCC foci, which were truly segregated from the tumor massif. CONCLUSIONS The results indicated that the 2D SCC focus isolation could not be regarded as invasion but that the SCC foci surrounded by perlecan-positive stroma (modes 2 and 3) could be regarded as a more objective measure for invasion of SCC. This is the first 3D tissue-level demonstration of the neoplastic stroma space induced with oral SCC invasion, the presence of which we have predicted based on our previous 2D and tissue culture evidence.
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Affiliation(s)
- Satoshi Maruyama
- Oral Pathology Section, Department of Surgical Pathology, Niigata University Hospital, Niigata, Japan
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18
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The mutational landscape of adenoid cystic carcinoma. Nat Genet 2013; 45:791-8. [PMID: 23685749 PMCID: PMC3708595 DOI: 10.1038/ng.2643] [Citation(s) in RCA: 339] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 04/25/2013] [Indexed: 12/14/2022]
Abstract
Adenoid cystic carcinomas (ACCs) are among the most enigmatic of human malignancies. These aggressive salivary cancers frequently recur and metastasize despite definitive treatment, with no known effective chemotherapy regimen. Here, we determined the ACC mutational landscape and report the exome or whole genome sequences of 60 ACC tumor/normal pairs. These analyses revealed a low exonic somatic mutation rate (0.31 non-silent events/megabase) and wide mutational diversity. Interestingly, mutations selectively involved chromatin state regulators, such as SMARCA2, CREBBP, and KDM6A, suggesting aberrant epigenetic regulation in ACC oncogenesis. Mutations in genes central to DNA damage and protein kinase A signaling also implicate these processes. We observed MYB-NFIB translocations and somatic mutations in MYB-associated genes, solidifying these aberrations as critical events. Lastly, we identified recurrent mutations in the FGF/IGF/PI3K pathway that may potentially offer new avenues for therapy (30%). Collectively, our observations establish a molecular foundation for understanding and exploring new treatments for ACC.
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Silva VTD, Piva MR, Souza LMDA, Amorim KDS, Groppo FC. Relação entre presença de fendas de cristais de colesterol em lesão periapical e nível de colesterol sérico. REVISTA DE ODONTOLOGIA DA UNESP 2013. [DOI: 10.1590/s1807-25772013000200005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
INTRODUÇÃO: Uma infecção crônica nos tecidos periapicais pode desencadear uma lesão periapical em função da estimulação e da proliferação dos restos epiteliais de Malassez. Ao estudo microscópico, é possível detectar a presença de fendas de cristais de colesterol no interior de cistos e granulomas. De acordo com alguns estudos, a origem do colesterol no interior de lesões no periápice pode ser, parcialmente, por causa da condensação e da cristalização de colesterol dentro da parede do cisto. Outros estudos afirmam que a presença de colesterol pode ser derivada de produtos metabólicos locais ou da circulação vascular. OBJETIVO: O presente estudo teve por objetivo analisar a relação entre as fendas de cristais de colesterol encontradas nas lesões periapicais e os níveis de colesterol sérico. MATERIAL E MÉTODO: Estudo observacional de natureza descritiva, que incluiu 70 pacientes portadores de lesões periapicais, de acordo com exame radiográfico, atendidos no Departamento de Odontologia da Universidade Federal de Sergipe. Esses pacientes foram submetidos à exodontia da unidade dentária acometida e à remoção da lesão periapical, sendo esta peça encaminhada para exame anatomopatológico. Na mesma consulta, era solicitado um lipidograma para avaliação das taxas de colesterol sérico dos pacientes. RESULTADO: Fendas de cristais de colesterol estavam presentes apenas em cistos grandes (maiores que 1,5 cm de diâmetro, aproximadamente) e, portanto, mais antigos. CONCLUSÃO: A presença de cristais de colesterol é rara nas lesões periapicais. O estudo sugere uma relação entre a presença dos cristais de colesterol e o índice de colesterol sérico elevado, em lesões grandes e antigas.
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Abstract
The clinical features and common molecular alterations of adenoid cystic carcinoma (ACC) are reviewed in this paper. ACC is an uncommon neoplasm that most frequently arises in salivary glands and related tissue in the head and neck region. ACC has distinct histologic features, with cribriform and tubular growth patterns of basaloid cells displaying a predominantly myoepithelial cellular phenotype. This neoplasm also has uncommon clinical features of rare regional lymph node metastasis and a prolonged but relentlessly progressive clinical course. Clinical outcome in ACC is correlated to histologic grade, which is correlated to the degree of aneuploidy and genetic alterations present in the tumor genomes. Recent studies have identified that the majority of ACC contain alterations of the MYB gene, usually resulting in a fusion gene product with the NFIB gene by a t(6;9) translocation event. The molecular consequences of this alteration are incompletely understood, as are secondary molecular alterations that contribute to the neoplastic phenotype of ACC.
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Affiliation(s)
- Christopher A Moskaluk
- Department of Pathology, University of Virginia Health System, Charlottesville, VA 22908, USA.
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21
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Immunoexpression of α2β1, α3β1, and α5β1 integrins in pleomorphic adenoma and adenoid cystic carcinoma. Appl Immunohistochem Mol Morphol 2012; 21:258-64. [PMID: 22914615 DOI: 10.1097/pai.0b013e3182649119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The aim of the present study was to compare the expression of α2β1, α3β1, and α5β1 integrins between 28 pleomorphic adenomas (PAs) and 10 adenoid cystic carcinomas (ACCs), and investigate differences in the expression of these integrins according to histologic subtypes of ACCs. It was taken into consideration the presence or absence, distribution, and localization of integrin immunoexpression. There was immunoreactivity in the intercellular contacts of the strands, nests, and solid sheets of PAs, as well as in the luminal and nonluminal cells of the duct-like structures, with a predominant immunoexpression in the luminal cells. The immunoexpression in ACCs varied with histologic subtype of the tumor. It was verified for a tendency of absence and/or reduced expression of all integrins in the solid subtype of ACCs. In general, PAs revealed a more diffuse and remarkable immunoexpression of all studied integrins than ACCs. The reduced integrins expression in ACC may be related to a lesser degree of cell differentiation in this neoplasm. Moreover, the absence and/or reduced expression of the studied integrins in solid ACC suggest a possible role in pathogenesis and more aggressive biological behavior of this histologic subtype.
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Chen W, Dong S, Zhou J, Sun M. Investigation of myoepithelial cell differentiation into Schwann-like cells in salivary adenoid cystic carcinoma associated with perineural invasion. Mol Med Rep 2012; 6:755-9. [PMID: 22842649 DOI: 10.3892/mmr.2012.1003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2012] [Accepted: 07/04/2012] [Indexed: 11/06/2022] Open
Abstract
Perineural invasion (PNI) is common in salivary adenoid cystic carcinoma (SACC). The aim of the present study was to explore the association of the Schwann-like cell differentiation with PNI in SACC. Twenty-eight cases of SACC and 10 cases of acinic cell carcinoma (ACA) were examined for the expression of the Schwann cell markers Leu-7 by immunohistochemical staining. The correlation between Leu-7 expression and PNI was analyzed using κ analysis. Immunofluorescence double-staining and pre-embedding immunogold-silver cytochemistry were used to detect the co-expression and the location of Leu-7 and the myoepithelial cell marker α-smooth muscle actin (α-SMA). PNI was identified in 16 SACCs (57.1%) and 1 ACA (10%) and the overexpression of Leu-7 was detected in 22 SACCs (78.6%) and in none of the ACAs (0%). The differences between PNI and Leu-7 expression in SACC and ACA were significant (P<0.05). A correlation was identified between the expression of Leu-7 and PNI in SACC (κ=0.533, P=0.01). In SACC, Leu-7 and α-SMA were co-expressed in the cytoplasm in the same myoepithelial cells. We suggest that Schwann‑like cell differentiation correlates with PNI in SACC and that the differentiation of myoepithelial into Schwann‑like cells may be one of the mechanisms through which PNI occurs in SACC.
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Affiliation(s)
- Wei Chen
- Department of Oral and Maxillofacial Surgery, School of Stomatology, Fourth Military Medical University, Xi'an, Shannxi, PR China
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Metwaly H, Maruyama S, Yamazaki M, Tsuneki M, Abé T, Jen KY, Cheng J, Saku T. Parenchymal-stromal switching for extracellular matrix production on invasion of oral squamous cell carcinoma. Hum Pathol 2012; 43:1973-81. [PMID: 22575259 DOI: 10.1016/j.humpath.2012.02.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2011] [Revised: 02/05/2012] [Accepted: 02/09/2012] [Indexed: 12/25/2022]
Abstract
It is poorly understood which cell type, tumor cells, or stromal cells are responsible for the production of extracellular matrix molecules in the neoplastic stroma. We studied the expression of 4 extracellular matrix molecules at the protein and messenger RNA levels in monocellular and 2 kinds of coculture systems between human squamous cell carcinoma (ZK-1) and fibroblast (OF-1) cell lines, which may correspond to carcinoma in situ and squamous cell carcinoma, respectively. Squamous cell carcinoma and carcinoma in situ tissue sections were also investigated by immunohistochemistry and in situ hybridization for extracellular matrix. Immunohistochemically, perlecan and tenascin C were localized in carcinoma cells in carcinoma in situ, whereas they were in the stromal space in squamous cell carcinoma. In monocellular culture conditions, expression levels for perlecan, tenascin C, and laminin were more predominant in ZK-1 than in OF-1, although those for fibronectin were more enhanced in OF-1. However, these extracellular matrix expression levels of OF-1 were elevated, whereas those of ZK-1 dropped when they were in coculture conditions. The differences between ZK-1 and OF-1 were significantly more evident in direct contact (ZK-1/OF-1, 56%-22%) than in indirect contact (63%-39%). These results indicate that oral squamous cell carcinoma cells produce extracellular matrix in the absence of stromal fibroblasts (or in carcinoma in situ) and that they stop producing extracellular matrix in the presence of fibroblasts (or in squamous cell carcinoma). It is hence suggested that stromal fibroblasts after direct contact with invading squamous cell carcinoma cells are more responsible than squamous cell carcinoma cells for the formation of neoplastic stroma, whereas carcinoma in situ cells have to produce and deposit extracellular matrix by themselves to form intraepithelial microstromal spaces.
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Affiliation(s)
- Hamdy Metwaly
- Division of Oral Pathology, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, 2-5274 Gakkocho-dori, Chuo-ku, Niigata 951-8514, Japan
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Ahsan MS, Yamazaki M, Maruyama S, Kobayashi T, Ida-Yonemochi H, Hasegawa M, Henry Ademola A, Cheng J, Saku T. Differential expression of perlecan receptors, α-dystroglycan and integrin β1, before and after invasion of oral squamous cell carcinoma. J Oral Pathol Med 2010; 40:552-9. [DOI: 10.1111/j.1600-0714.2010.00990.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Tsuneki M, Yamazaki M, Cheng J, Maruyama S, Kobayashi T, Saku T. Combined immunohistochemistry for the differential diagnosis of cystic jaw lesions: its practical use in surgical pathology. Histopathology 2010; 57:806-13. [DOI: 10.1111/j.1365-2559.2010.03712.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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26
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Hasegawa M, Cheng J, Maruyama S, Yamazaki M, Iida A, Takagi R, Tanaka R, Hayashi T, Saito C, Saku T. Complication of adenoid cystic carcinoma and sialolithiasis in the submandibular gland: report of a case and its etiological background. Int J Oral Maxillofac Surg 2010; 40:647-50. [PMID: 21159490 DOI: 10.1016/j.ijom.2010.11.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2010] [Revised: 09/29/2010] [Accepted: 11/12/2010] [Indexed: 10/18/2022]
Abstract
The authors report a case of adenoid cystic carcinoma (ACC) complicated with sialolithiasis of the submandibular gland. The patient was a 43-year-old female with a history of papillotubular carcinoma of the breast almost at the same time. She had noticed a swelling in her sublingual area for 10 years, which was later diagnosed by her dentist to be due to a sialolith in the left submandibular gland. After several years of observation, the patient was referred to have her left submandibular gland, containing the stone, surgically removed with a diagnosis of atrophic sialadenitis. Histopathologically, the submandibular gland was extensively replaced with fibrous granulation tissue, in which there were small but invasive foci of ACC. The present case indicates that ACC could arise in the background of chronic sialadenitis. It is suggested that long-standing sialadenitis cases should be carefully examined to exclude suspicion of malignancy before surgery.
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Affiliation(s)
- M Hasegawa
- Division of Oral Pathology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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27
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Kato N, Takeda J, Fukase M, Motoyama T. Alternate mucoid and hyalinized stroma in clear cell carcinoma of the ovary: manifestation of serial stromal remodeling. Mod Pathol 2010; 23:881-8. [PMID: 20305617 DOI: 10.1038/modpathol.2010.75] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The stroma in ovarian clear cell carcinoma often shows alternate mucoid and hyalinized change. The hyalinized stroma is recognized to be an aberrant deposition of basement membrane material produced by tumor cells. The mucoid stroma, however, has drawn far less attention, and its significance remains unclear. We examined 60 ovarian clear cell carcinomas for the distribution and nature of the mucoid stroma. For comparison, 125 other surface epithelial ovarian tumors were examined. Twenty-nine of 60 (48%) clear cell carcinomas showed a mucoid stroma, either focally (21 cases) or diffusely (8 cases). The mucoid stroma in clear cell carcinomas was distinct from that in other surface epithelial tumors as follows: it showed a compact spherule-like appearance, commonly occupying the cores of small papillae. It also exhibited a cribriform pattern, resembling that of adenoid cystic carcinoma. It was rarely associated with stromal cells, despite the presence of abundant glycosaminoglycan including hyaluronan. Alternatively, it was strongly associated with hyalinized stroma. Among 40 clear cell carcinomas that had at least one type of stroma, 26 (65%) had both, either concomitantly or separately. The mucoid stroma tended to attenuate if the hyalinized stroma developed. In vitro, a clear cell carcinoma cell line, HAC-2, formed a spherule-like structure containing hyaluronan in the center, and a significant amount of hyaluronan was detected by latex agglutination immunoturbidimetry, indicating that HAC-2 itself has the potential to produce hyaluronan. All of these facts indicate that the spherule-like mucoid stroma and hyalinized stroma represent different phases of the stromal remodeling process, which is promoted by the deposition of different extracellular matrices produced by clear cell carcinoma cells. The spherule-like mucoid stroma and hyalinized stroma are considered complementary diagnostic signatures of ovarian clear cell carcinoma.
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Affiliation(s)
- Noriko Kato
- Department of Pathology, Yamagata University School of Medicine, Yamagata, Japan.
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Maruyama S, Cheng J, Yamazaki M, Zhou XJ, Zhang ZY, He RG, Saku T. Metastasis-associated genes in oral squamous cell carcinoma and salivary adenoid cystic carcinoma: a differential DNA chip analysis between metastatic and nonmetastatic cell systems. ACTA ACUST UNITED AC 2009; 196:14-22. [PMID: 19963131 DOI: 10.1016/j.cancergencyto.2009.08.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2009] [Accepted: 08/02/2009] [Indexed: 11/16/2022]
Abstract
Overall modes of differential gene expressions were analyzed between human oral/salivary carcinoma cell systems with (MK-1 and ACCM) and without (ZK-1/ZK-2 and ACC2/ACC3) metastatic potential by using micro-array analysis with cancer-associated DNA chips to determine the kinds of genes associated with metastatic behaviors. MK-1 and/or ACCM showed lower levels of gene expression in extracellular matrix-related molecules, such as collagen type IV, laminin, and adhesion molecules such as cadherin 2, but higher levels of genes which control extracellular matrix degradation, such as MMP 9, as well as cell growth and cycle, such as FGF7 and cyclin D1. Among the differentially expressed genes, similar protein expression tendencies for FGF7, laminin, cyclin D1, and collagen type IV were confirmed by immunofluorescence. Metastatic potentials of oral/salivary carcinoma cells seem to have resulted from certain combinations of over-/underexpression of the genes, which were responsible for extracellular matrix metabolism and cell growth in particular.
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Affiliation(s)
- Satoshi Maruyama
- Division of Oral Pathology, Department of Tissue Regeneration and Reconstruction, Niigata University, Graduate School of Medical and Dental Sciences, 2-5274 Gakkoucho-dori, Chuo-ku, Niigata 951-8514, Japan
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29
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Maruyama S, Cheng J, Yamazaki M, Liu A, Saku T. Keratinocyte growth factor colocalized with perlecan at the site of capsular invasion and vascular involvement in salivary pleomorphic adenomas. J Oral Pathol Med 2009; 38:377-85. [DOI: 10.1111/j.1600-0714.2008.00742.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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30
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Cartilaginous features in matrix-producing carcinoma of the breast: four cases report with histochemical and immunohistochemical analysis of matrix molecules. Mod Pathol 2008; 21:1282-92. [PMID: 18622387 DOI: 10.1038/modpathol.2008.120] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Matrix-producing carcinoma of the breast is a well-established entity in the group of metaplastic carcinoma, which is histologically characterized by myxochondroid matrix formation and is extremely rare. We describe here four additional cases of matrix-producing carcinoma of the breast. All cases of matrix-producing carcinoma show nest-like, sheet-like, and cord-like growth of tumor cells with cellular atypia, in addition to scattered cancer cells within myxoid or myxohyalinous stroma. Three of four cases showed an acellular or oligocellular matrix-rich zone in the center of the tumor. Immunohistochemically, cancer cells of all cases were positive for cytokeratins and epithelial membrane antigens and partially positive for sox9 and p63. Aggrecan and type II collagen, which are cartilage-specific matrix molecules, were deposited in the stroma of all cases. Type I and type IV collagens were also deposited on the stroma of all cases. These findings suggest that, although cancer cells of matrix-producing carcinoma of the breast are epithelial, they transdifferentiate to chondrocyte-like cells and produce cartilage-specific matrix molecules, which are useful markers for diagnosing matrix-producing carcinoma.
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Jaeger RG, Scarabotto-Neto N, Azambuja N, Freitas VM. Secretion of collagen I and tenascin is modulated by laminin-111 in 3D culture of human adenoid cystic carcinoma cells. Int J Exp Pathol 2008; 89:98-105. [PMID: 18336527 DOI: 10.1111/j.1365-2613.2007.00571.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Adenoid cystic carcinoma is a frequent malignant salivary gland neoplasm with high levels of recurrence and metastasis. This neoplasm expresses prominent extracellular matrix (ECM). We are studying regulatory mechanisms underlying secretion of ECM molecules in adenoid cystic carcinoma. We have previously demonstrated that laminin modulates the phenotype of a human adenoid cystic carcinoma (CAC2) cell line. Thus, this molecule would be a good candidate to regulate secretion of ECM molecules in these cells. Here we analysed the role played by laminin-111 [formerly laminin-1; Aumailley et al. (2005). Matrix Biol. 24, 326] stimulating secretory activity of CAC2 cells. Three-dimensional cultures of cells in laminin-111 (treated) or agarose (controls) were studied by light and electron microscopy. Ultrastructural analysis of CAC2 cells grown within laminin-111 showed pseudocysts filled with secretory-like material. Cells exhibited prominent and dilated endoplasmic reticulum and coated and uncoated vesicles. Ultrastructural findings suggested that laminin-111 induced secretory activity in CAC2 cells. We further investigated this point by light microscopy, immunofluorescence and confocal microscopy. Histochemistry showed periodic acid-Schiff (PAS)-positive diastase-resistant material in CAC2 cells treated by laminin-111. This material could represent laminin-induced secretion of ECM molecules. We searched for collagen I and tenascin in CAC2 cells treated by laminin-111. Confocal microscopy and immunoblot showed that laminin-111 enhanced secretion of collagen I and tenascin in CAC2 cells. We suggest that laminin-111 modulates secretion of collagen I and tenascin in cells derived from human adenoid cystic carcinoma.
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Affiliation(s)
- Ruy G Jaeger
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
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Gama-de-Souza LN, Cyreno-Oliveira E, Freitas VM, Melo ES, Vilas-Boas VF, Moriscot AS, Jaeger RG. Adhesion and protease activity in cell lines from human salivary gland tumors are regulated by the laminin-derived peptide AG73, syndecan-1 and beta1 integrin. Matrix Biol 2008; 27:402-19. [PMID: 18378436 DOI: 10.1016/j.matbio.2008.02.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2007] [Revised: 02/16/2008] [Accepted: 02/20/2008] [Indexed: 11/16/2022]
Abstract
We studied the induction of protease activity by the laminin alpha1-derived peptide AG73 in cells from adenoid cystic carcinoma (CAC2) and myoepithelioma (M1), respectively a malignant and a benign salivary gland tumors. Laminin alpha1 chain and MMP9 were immunolocalized in adenoid cystic carcinoma and myoepithelioma in vivo and in vitro. Cells grown inside AG73-enriched laminin-111 exhibited large spaces in the extracellular matrix, suggestive of remodeling. The broad spectrum MMP inhibitor GM6001 decreased spaces induced by AG73 in CAC2 and M1 cells. This result strongly suggests that AG73-mediated matrix remodeling involves matrix metalloproteinases. CAC2 and M1 cells cultured on AG73 showed a dose-dependent increase of MMP9 secretion, as detected by zymography. Furthermore, siRNA silencing of MMP9 decreased remodeling in 3D cultures. We searched for AG73 receptors regulating MMP9 activity in our cell lines. CAC2 and M1 cells grown on AG73 exhibited colocalization of syndecan-1 and beta1 integrin. siRNA knockdown of syndecan-1 expression in these cells resulted in decreased adhesion to AG73 and reduced protease and remodeling activity. We investigated syndecan-1 co-receptors in both cell lines. Silencing beta1 integrin inhibited adhesion to AG73, matrix remodeling and protease activity. Double-knockdown experiments were carried out to further explore syndecan-1 and beta1 integrin cooperation. CAC2 cells transfected with both syndecan-1 and beta1 integrin siRNA oligos showed significant decrease in adhesion to AG73. Simultaneous silencing of receptors also induced a decrease in protease activity. Our results suggest that syndecan-1 and beta1 integrin signaling downstream of AG73 regulate adhesion and MMP production by CAC2 and M1 cells.
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Affiliation(s)
- Letícia N Gama-de-Souza
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
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33
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Tsuneki M, Cheng J, Maruyama S, Ida-Yonemochi H, Nakajima M, Saku T. Perlecan-rich epithelial linings as a background of proliferative potentials of keratocystic odontogenic tumor. J Oral Pathol Med 2008; 37:287-93. [DOI: 10.1111/j.1600-0714.2007.00620.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Poomsawat S, Punyasingh J, Vejchapipat P. Expression of basement membrane components in odontogenic tumors. ORAL SURGERY, ORAL MEDICINE, ORAL PATHOLOGY, ORAL RADIOLOGY, AND ENDODONTICS 2007; 104:666-75. [PMID: 17150384 DOI: 10.1016/j.tripleo.2006.08.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2006] [Revised: 08/13/2006] [Accepted: 08/28/2006] [Indexed: 11/22/2022]
Abstract
OBJECTIVE The objective was to characterize the expression of BMCs (laminins 1 and 5, collagen type IV, and fibronectin) in ameloblastomas, calcifying cystic odontogenic tumors (CCOTs), and adenomatoid odontogenic tumors (AOTs). STUDY DESIGN BMCs were analyzed in 14 ameloblastomas, 7 CCOTs, and 7 AOTs using immunohistochemistry. RESULTS In normal oral mucosa, linear deposits of these proteins were found at the epithelial-mesenchymal junction, but not in epithelial cytoplasm. In all tumors studied, linear deposits of all proteins were found at the epithelial-mesenchymal junction; laminin 1 was expressed in all tumor cells, regardless of cell types. For CCOTs, laminin 5 was found faintly in suprabasal cells, but expressed strongly in ghost cells. For AOTs, laminin 5 strongly decorated tumor cells adjacent to mineralization. CONCLUSIONS Laminin 1 may be a marker for odontogenic epithelium. Additionally, laminin 5 may be involved in ghost cell formation and initiation of calcification.
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Affiliation(s)
- Sopee Poomsawat
- Department of Oral Pathology, Faculty of Dentistry, Mahidol University, Bangkok, Thailand.
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Freitas VM, Vilas-Boas VF, Pimenta DC, Loureiro V, Juliano MA, Carvalho MR, Pinheiro JJV, Camargo ACM, Moriscot AS, Hoffman MP, Jaeger RG. SIKVAV, a laminin alpha1-derived peptide, interacts with integrins and increases protease activity of a human salivary gland adenoid cystic carcinoma cell line through the ERK 1/2 signaling pathway. THE AMERICAN JOURNAL OF PATHOLOGY 2007; 171:124-38. [PMID: 17591960 PMCID: PMC1941583 DOI: 10.2353/ajpath.2007.051264] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Adenoid cystic carcinoma is a frequently occurring malignant salivary gland neoplasm. We studied the induction of protease activity by the laminin-derived peptide, SIKVAV, in cells (CAC2) derived from this neoplasm. Laminin alpha1 and matrix metalloproteinases (MMPs) 2 and 9 were immunolocalized in adenoid cystic carcinoma cells in vivo and in vitro. CAC2 cells cultured on SIKVAV showed a dose-dependent increase of MMP9 as detected by zymography and colocalization of alpha3 and alpha6 integrins. Small interfering RNA (siRNA) knockdown of integrin expression in CAC2 cells resulted in decreased adhesion to the peptide. SIKVAV affinity chromatography and immunoblot analysis showed that alpha3, alpha6, and beta1 integrins were eluted from the SIKVAV column, which was confirmed by mass spectrometry and a solid-phase binding assay. Small interfering RNA experiments also showed that these integrins, through extracellular signal-regulated kinase (ERK) 1/2 signaling, regulate MMP secretion induced by SIKVAV in CAC2 cells. We propose that SIKVAV increases protease activity of a human salivary gland adenoid cystic carcinoma cell line through alpha3beta1 and alpha6beta1 integrins and the ERK 1/2 signaling pathway.
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Affiliation(s)
- Vanessa M Freitas
- Universidade de São Paulo, Instituto de Ciências Biomédicas, Departamento de Biologia Celular e do Desenvolvimento, Av Prof Lineu Prestes 1524, Ed Biomédicas 1, sala 405, São Paulo SP, Brazil
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36
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Morais Freitas V, Nogueira da Gama de Souza L, Cyreno Oliveira E, Furuse C, Cavalcanti de Araújo V, Gastaldoni Jaeger R. Malignancy-related 67kDa laminin receptor in adenoid cystic carcinoma. Effect on migration and beta-catenin expression. Oral Oncol 2007; 43:987-98. [PMID: 17257887 DOI: 10.1016/j.oraloncology.2006.11.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2006] [Revised: 11/07/2006] [Accepted: 11/08/2006] [Indexed: 10/23/2022]
Abstract
Adenoid cystic carcinoma is a malignant salivary gland neoplasm with recurrence and metastasis. We studied the expression of a malignancy-related non-integrin laminin receptor, the 67LR, in this neoplasm. Immunohistochemistry showed 67LR in adenoid cystic carcinoma. This receptor binds a sequence of laminin beta1 chain, the YIGSR peptide. We studied the effect of 67LR and YIGSR in cells (CAC2) from adenoid cystic carcinoma. Three-dimensional cultures of cells embedded into either laminin-111 gel (controls) or YIGSR-enriched laminin-111 (treated) were prepared and studied by light microscopy. CAC2 cells treated with YIGSR appeared fibroblast-like, while control cells were epithelioid. Blockage of 67LR by antibody abolished YIGSR effect in three-dimensional cultures. We analysed the relevance of 67LR and YIGSR on beta-catenin expression in CAC2 cells. Immunofluorescence and immunoblot showed that YIGSR decreased beta-catenin, while blockage of 67LR restored the presence of this molecule. The 67LR and YIGSR induced fibroblast-like morphology in CAC2 cells, with disruption of cell-cell contacts and decrease of beta-catenin. These features resemble epithelial-mesenchymal transition (EMT). EMT also increases cell migration. In monolayer assays YIGSR increased migration of CAC2 cells. We conclude that 67LR and YIGSR are involved in epithelial-mesenchymal transition, modulation of beta-catenin expression, and migratory activity of CAC2 cells.
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Affiliation(s)
- Vanessa Morais Freitas
- Department of Cellular and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
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37
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Marques MM, Martins MD, França CM. Effect of Matrigel on adenoid cystic carcinoma cell line differentiation. Int J Exp Pathol 2007; 87:405-10. [PMID: 17222208 PMCID: PMC2517392 DOI: 10.1111/j.1365-2613.2006.00498.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Adenoid cystic carcinoma (ACC) is a frequent malignant salivary gland neoplasm presenting different growth patterns described as tubular, cribriform and solid, which represent distinct differentiation stages. Cell lines originated from ACCs grown inside three-dimensional environments have not been capable to reproduce all in vivo ACC growth patterns. As ACC cells in vivo present replicated basement membrane, to mimic this situation in vitro ACC cells (CAC2 cells) were grown on the top of a reconstituted basement membrane (Matrigel). Phenotype differences were assessed by light, fluorescence and transmission electron microscopy. The cultures grown on the top of Matrigel presented three-dimensional arrangement of cells intercepted by cellular cords. At these, cell nests pseudocyst formations were observed. This morphological structure entirely reproduced the cribriform growth pattern of ACC. We suggest that the cribriform differentiation of ACC in culture is dependent of proteins and growth factors associated in a bi-dimensional structure.
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Affiliation(s)
- Márcia M Marques
- Department of Restorative Dentistry, University of São Paulo, São Paulo, Brazil.
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Kumamoto M, Kuratomi Y, Yasumatsu R, Nakashima T, Masuda M, Inokuchi A. Expression of laminin 5 basement membrane components in invading and recurring adenoid cystic carcinoma of the head and neck. Auris Nasus Larynx 2006; 33:167-72. [PMID: 16332421 DOI: 10.1016/j.anl.2005.09.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2005] [Accepted: 09/16/2005] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Adenoid cystic carcinoma (ACC) of the head and neck grows slowly with structural differentiation, however, this tumor nevertheless also shows a highly invasive potential and a high recurrence rate. Extracellular matrices have been suggested to play an important role in the differentiation and growth of ACC. The aim of this study is to understand the roles of laminin 5 basement membrane (BM) components, including collagen IV and laminin gamma2 for the high degree of invasiveness and the recurrence of ACC. METHODS Collagen IV and laminin gamma2 were immunohistochemically localized in tissue sections from nine patients with ACCs. RESULTS Cribriform structures with pseudocysts were preserved in small invading tumor nests, and the expression of both of collagen IV and laminin gamma2 was observed in the inner border of the pseudocysts and the surrounding area of the tumor nests. In areas of perineural invasion, the BM components continued to be expressed around the long tumor nests. Recurrent tumors consisted of multiple small nests with a few tumor cell layers, and the expression of the BM components was observed on both the inside of the inner tumor cells and the outside of the outer tumor cells, which was an obviously different appearance from that of the primary tumor. CONCLUSION ACC appears to possibly grow and invade using the laminin 5 BM matrices while also preserving their differentiated architecture. The laminin 5 BM matrices might play an important role not only in the differentiation and growth, but also in the invasion and recurrence of ACC of the head and neck.
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Affiliation(s)
- Mayuko Kumamoto
- Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Fukuoka 812-8582, Japan
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Wang L, Sun M, Jiang Y, Yang L, Lei D, Lu C, Zhao Y, Zhang P, Yang Y, Li J. Nerve growth factor and tyrosine kinase A in human salivary adenoid cystic carcinoma: expression patterns and effects on in vitro invasive behavior. J Oral Maxillofac Surg 2006; 64:636-41. [PMID: 16546643 DOI: 10.1016/j.joms.2005.12.011] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2004] [Indexed: 11/17/2022]
Abstract
PURPOSE Perineural invasion is a frequent occurrence in salivary adenoid cystic carcinoma (ACC) and may prevent complete surgical resection. Studies have indicated that nerve growth factor (NGF) and its high-affinity receptor tyrosine kinase A (TrkA) may play a role in perineural invasion in several malignancies in which perineural invasion is observed. The present study was conducted to investigate the expression of NGF and TrkA in salivary ACC and to examine the effects of NGF on adhesion, migration and invasion capacities of a salivary ACC cell line (SACC-83) in vitro. PATIENTS AND METHODS Expression of NGF and TrkA was explored using immunohistochemistry in paraffin-embedded tissues of 32 cases of salivary ACC. The effects of NGF on in vitro adhesion, migration, and invasion capacities of the SACC-83 cell line were examined using an MTT assay and a modified Boyden chamber assay respectively. RESULTS In ACC specimens, 31 (96.9%) and 32 (100%) tumors showed immunoreactivity for NGF and TrkA respectively. Significant correlations were found between NGF/TrkA expression levels and perineural invasion (P < .05). In cell adhesion assay, the percent adherences of SACC-83 cells co-cultured with 25 ng/ml NGF at 1.5 hours and 5, 25 ng/ml NGF at 6 hours were significantly higher than that co-cultured with 0 ng/ml NGF (P < .05). However, high concentration of NGF (500 ng/ml) resulted in a significant inhibition of invasion (P < .05). CONCLUSION Overexpression of NGF and TrkA in human salivary ACC tissues may constitute a reason for perineural invasion in salivary ACC.
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Affiliation(s)
- Lei Wang
- Department of Oral and Maxillofacial Surgery, School of Stomatology, Fourth Military Medical University, Xi'an, P.R. China
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Wang Y, Irié T, Aida T, Tachikawa T. Expression of TIMP-1 and -2 in different growth patterns of adenoid cystic carcinoma. Oral Oncol 2005; 41:821-7. [PMID: 15979928 DOI: 10.1016/j.oraloncology.2005.04.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2005] [Accepted: 04/07/2005] [Indexed: 11/17/2022]
Abstract
Tissue inhibitors of metalloproteinases (TIMPs) are special inhibitors of matrix metalloproteinases. To evaluate their roles in adenoid cystic carcinoma (ACC), we compared TIMP-1 and -2 mRNA and protein expression in different histological pattern of ACC. We obtained carcinoma cells from each of cribriform and tubular pattern of ACCs using by laser microdissection (LM), to determine the mRNAs expression of TIMP-1 and -2 using by real-time quantitative reverse transcription-polymerase chain reaction (RT-PCR), and to confirm expression of them by immunohistochemical staining. Our results showed that mRNA expression of TIMP-1 tended to be decreased in cribriform pattern compared with tubular pattern in four cases, and TIMP-1 significantly decreased in three cases. TIMP-2 also significantly decreased in cribriform than in tubular pattern in three of four cases. Protein expression of TIMP-1 and -2 decreased in the cribriform pattern compared to tubular pattern. These results indicate that there is close relationship between TIMPs and growth patterns of ACC, and TIMP-1 and -2 may play important roles in morphogenesis and biological character of adenoid cystic carcinoma.
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Affiliation(s)
- Yan Wang
- Department of Oral Pathology, Showa University School of Dentistry, Shinagawa-ku, Tokyo, Japan
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41
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Irving-Rodgers HF, Harland ML, Rodgers RJ. A novel basal lamina matrix of the stratified epithelium of the ovarian follicle. Matrix Biol 2004; 23:207-17. [PMID: 15296935 DOI: 10.1016/j.matbio.2004.05.008] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2003] [Revised: 05/21/2004] [Accepted: 05/21/2004] [Indexed: 11/22/2022]
Abstract
Basal laminas are important sheets of specialized extracellular matrix that underlie and surround groups of cells, such as epithelia or endothelia, enabling the cells to orientate their basal/apical polarity and creating a microenvironment for them. Basal laminas can also individually encapsulate whole cells, such as muscle cells, thereby forming a microenvironment but not polarizing the enclosed cells. Other mesenchymal or stromal cells exist with no basal lamina. In the course of studying the bovine follicular basal lamina which underlies the multilayered epithelium of the ovarian follicle, we identified a developmentally regulated novel extracellular matrix (which we call focimatrix for focal intra-epithelial matrix). Focimatrix is composed of basal lamina-like material deposited as plaques or aggregates between the multilayers of the epithelial granulosa cells. The focimatrix does not encapsulate individual or groups of cells and therefore does not form a microenvironment for them. Focimatrix contains collagen type IV subunits alpha1 and alpha2 (but not alpha3-alpha6), and laminin chains alpha1, beta2 and gamma1 (but not alpha2 or beta1), and nidogen-1 and perlecan (but not versican). The amount of focimatrix increases with increasing follicular size, and its appearance precedes the expression by granulosa cells of the enzymes for steroid hormone synthesis, cholesterol side-chain cleavage cytochrome P450 (SCC) and 3beta-hydroxysteroid dehydrogenase (3beta-HSD), in the days preceding ovulation. The expression in granulosa cells of two components examined, nidogen-1 and perlecan, also increases substantially when follicles enlarge to a sufficient size capable of ovulating. Following ovulation the follicular basal lamina is degraded, and presumably focimatrix is too since it is not detected in corpora lutea that develop from the ovulating follicles. During this development the granulosa cells undergo an epithelial-mesenchymal transition (EMT) into luteal cells following ovulation, and substantially increase their expression of steroidogenic enzymes in the process. During EMT epithelial cells lose polarity. Since focimatrix exists on more than one side of the granulosa cells, we propose that it disrupts the polarity induced by the follicular basal lamina in the lead up to ovulation. Hence focimatrix maybe a key part of the follicular/luteal EMT.
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Affiliation(s)
- Helen F Irving-Rodgers
- Research Centre for Reproductive Health, Department of Obstetrics and Gynaecology, Adelaide University, SA 5005, Australia
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42
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Maruya SI, Kurotaki H, Wada R, Saku T, Shinkawa H, Yagihashi S. Promoter methylation and protein expression of the E-cadherin gene in the clinicopathologic assessment of adenoid cystic carcinoma. Mod Pathol 2004; 17:637-45. [PMID: 15044918 DOI: 10.1038/modpathol.3800104] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Adenoid cystic carcinoma, a relatively uncommon tumor of salivary glands, is characterized by a prolonged clinical course and a fatal outcome. The molecular events underlying their progression are unknown. In this study, we examined the methylation status of E-cadherin gene and its protein expression in 23 cases of adenoid cystic carcinoma and correlated the results with the clinicopathologic factors to determine its role in these tumors. We also analyzed the effect of 5-azacytidine on the re-expression in a methylated cell line of adenoid cystic carcinoma for this gene. In our study, E-cadherin immunoreactivity, although heterogeneous, showed a progressive reduction with high histological grade and in metastatic and recurrent lesions. Promoter methylation was detected in 16 of 23 cases (70%), but there was no correlation with the histological grade or patient prognosis. Microdissection of immuno-negative cells in heterogeneous tumors showed positive methlyation. In the cell line from salivary adenoid cystic carcinoma with methylated E-cadherin, 5-azacytidine restored the E-cadherin expression. Our results indicate that: (1) E-cadherin gene promoter is frequently methylated in adenoid cystic carcinoma, leading to reduced E-cadherin expression, (2) variable E-cadherin expression might result from the intratumoral heterogeneity, and (3) increased extent of methylated areas may be associated with progression and advancement of the disease.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Base Sequence
- Cadherins/biosynthesis
- Cadherins/genetics
- Carcinoma, Adenoid Cystic/genetics
- Carcinoma, Adenoid Cystic/metabolism
- Carcinoma, Adenoid Cystic/pathology
- Cell Line, Tumor
- CpG Islands/genetics
- DNA Methylation
- DNA, Neoplasm/chemistry
- DNA, Neoplasm/genetics
- DNA, Neoplasm/metabolism
- Female
- Humans
- Immunohistochemistry
- Male
- Microdissection/methods
- Middle Aged
- Promoter Regions, Genetic/genetics
- Sequence Analysis, DNA
- Survival Analysis
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Affiliation(s)
- Shin-ichiro Maruya
- Department of Pathology, Hirosaki University School of Medicine, Hirosaki, Japan
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Freitas VM, Scheremeta B, Hoffman MP, Jaeger RG. Laminin-1 and SIKVAV a laminin-1-derived peptide, regulate the morphology and protease activity of a human salivary gland adenoid cystic carcinoma cell line. Oral Oncol 2004; 40:483-9. [PMID: 15006619 DOI: 10.1016/j.oraloncology.2003.10.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2003] [Accepted: 10/01/2003] [Indexed: 11/17/2022]
Abstract
In a previous paper, we demonstrated that laminin-1 and its derived peptide SIKVAV modulates the morphology of an adenoid cystic carcinoma cell line (CAC2 cells). Light microscopy of CAC2 cells grown in three-dimensional preparations of SIKVAV-enriched laminin-1 showed the presence of pseudocystic spaces. Pseudocysts are hallmarks of adenoid cystic carcinoma in vivo. We hypothesized that these pseudocystic spaces could be due to the protease-inducing/activating role of SIKVAV. Thus, we studied the presence of matrix metalloproteinases (MMPs) in CAC2 cells treated either by laminin-1 or by SIKVAV-enriched laminin-1. Immunohistochemistry and zymography suggested that SIKVAV enhanced the secretion of MMP-2 and MMP-9 in CAC2 cells. We propose that SIKVAV induces pseudocystic formation probably through the secretion of MMPs 2 and 9.
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Affiliation(s)
- V M Freitas
- Department of Histology and Embryology, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes 1524, São Paulo SP 05508-900, Brazil
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44
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Kawahara A, Harada H, Kage M, Yokoyama T, Kojiro M. Extracellular material in adenoid cystic carcinoma of the salivary glands: A comparative cytological study with other salivary myoepithelial tumors. Diagn Cytopathol 2004; 31:14-8. [PMID: 15236258 DOI: 10.1002/dc.20094] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The objective of this study was to clarify extracellular materials (ECMs) in adenoid cystic carcinoma (AdCC) and compare these to those found in other salivary gland tumors with myoepithelial differentiation. The ECM was examined with Papanicolaou, May-Grünwald-Giemsa (MGG), and alcian blue stain at pH 2.5. The ECM in AdCC was classified into three types according to their staining patterns: clear, hyalinized, and membrane type. The incidence of clear-type globule material with magenta on MGG was low in other salivary gland tumors with myoepithelial differentiation. The ECM was identified in other salivary gland tumors with myoepithelial differentiation. However, AdCC has the greatest variety of ECM. These findings are useful to understand the character of AdCC and differential diagnosis of the other salivary gland tumors with myoepithelial differentiation.
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Affiliation(s)
- Akihiko Kawahara
- Department of Pathology, Kurume University Hospital and Kurume University School of Medicine, Kurume, Japan.
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45
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Abstract
BACKGROUND Epithelial-mesenchymal interactions constitute fundamental phenomena in the development and maintenance of the characteristic branching pattern seen in salivary glands. This study was undertaken to discuss the extracellular matrix (ECM) role in morphogenesis and cellular differentiation of salivary gland tumors originating from the intercalated duct. METHODS The ECM components, laminin (LN), type IV collagen, fibronectin (FN), and tenascin (TN) were revealed using a streptoavidin-biotin immunohistochemical technique and analyzed in 34 cases of salivary gland tumors: pleomorphic adenoma (PA); myoepithelioma; basal cell adenoma (BCA); polymorphous low grade adenocarcinoma (PLGA); and adenoid cystic carcinoma (ACC). RESULTS LN and type IV collagen were present in all tumors, confining well-organized duct-like structures, separating them from the stroma, or surrounding cell clusters. In PA and myoepithelioma, the basement membrane (BM) fragmentation was observed through LN and type IV collagen staining around each individual spindle-shaped cell, which was strictly related to the cell modification. Interestingly, BM interruption could not be seen in the malign tumors, however, was frequently augmented in some cases. LN, type IV collagen, and FN were also found in the stroma of all tumors studied, except for the pseudocystic spaces of ACC, which were only delimited by replicated LN and type IV collagen. TN exhibited a variable expression, being more intense in solid ACC. CONCLUSIONS LN and type IV collagen were always present around morphologically well-differentiated duct-like structures in all tumors studied. BM interruption could not be seen in the malign tumors, on the contrary BM production was evident, which is probably related to invasion. FN was present in the stroma of all tumors, but TN was mostly observed in less differentiated and higher degree of malignancy tumors, such as solid ACC.
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Affiliation(s)
- R Raitz
- Department of Oral Pathology, School of Dentistry, Braz Cubas University, São Paulo, Brazil.
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Ito M, Izumi N, Cheng J, Sakai H, Shingaki S, Nakajima T, Oda K, Saku T. Jaw bone remodeling at the invasion front of gingival squamous cell carcinomas. J Oral Pathol Med 2003; 32:10-7. [PMID: 12558953 DOI: 10.1034/j.1600-0714.2003.00139.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND It is still unknown how jaw bone remodeling occurs at actual invasion sites of oral squamous cell carcinomas. Since there is no other human carcinomas which make a direct invasion of the bone, gingival carcinomas are valuable examples. METHODS Twelve surgical specimens of gingival squamous cell carcinoma were examined histopathologically and immunohistochemically for remodeling of bone and its surrounding tissue. RESULTS Three types of bone interfaces with carcinomatous invasion were distinguished. These included areas with bone resorption, smooth bone surface and new bone formation. In the bone-resorption area, numerous osteoclasts were located along the bone surface, which was surrounded by myxoid stroma. The myxoid stroma was characterized by immunopositivity for heparan sulfate proteoglycan (HSPG), abundant vascularity and macrophagic infiltration. In the bone-formation area, rows of osteoblasts were aligned on the bone surface. The stroma around osteoblasts was also HSPG-immunopositive, poor in vascularity but rich in activated fibroblasts. In the smooth-bone area, the stroma showed an organizing phase of granulation tissue with slender fibroblasts and mature collagen fibers but with less vascularity and inflammatory infiltrates. CONCLUSION The results indicate that the stromal architecture, especially in terms of its inflammatory cellular, vascular and matrix compositions, is strictly regulated in the timing and site of jaw bone remodeling which is causes by carcinomatous invasion.
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Affiliation(s)
- Masahiro Ito
- Division of Reconstructive Surgery for Oral and Maxillofacial Region, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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Frierson HF, El-Naggar AK, Welsh JB, Sapinoso LM, Su AI, Cheng J, Saku T, Moskaluk CA, Hampton GM. Large scale molecular analysis identifies genes with altered expression in salivary adenoid cystic carcinoma. THE AMERICAN JOURNAL OF PATHOLOGY 2002; 161:1315-23. [PMID: 12368205 PMCID: PMC1867312 DOI: 10.1016/s0002-9440(10)64408-2] [Citation(s) in RCA: 155] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Salivary gland cancers comprise a heterogeneous group of neoplasms whose biological and clinical characteristics differ considerably from those of mucosal squamous cell carcinomas of the head and neck. One of the most common subtypes, adenoid cystic carcinoma (ACC), is notable for its myoepithelial differentiation, proclivity for hematogenous spread, and slow but progressive clinical course. The molecular alterations that underlie its development and progression are poorly characterized. Here we used oligonucleotide microarray analysis to survey the expression of 8920 different human genes in 15 ACCs, one ACC cell line, and five normal major salivary glands. We observed expression of genes indicative of myoepithelial differentiation, as expected, including those whose protein products are components of basement membranes and extracellular matrix. Other genes that were highly ranked for their expression in ACC were those encoding the transcription factors SOX4 and AP-2 gamma, the latter of which also was overexpressed in ACC relative to 175 other carcinomas from 10 anatomical sites that we had previously profiled. Additional genes, which were highly expressed in ACC compared to the other carcinomas, included casein kinase 1, epsilon and frizzled-7, both members of the Wnt/beta-catenin signaling pathway. Our study documents for the first time the diverse spectrum of genes overexpressed in ACC and highlights gene products and pathways that in the future might be exploited as therapeutic targets for this cancer, which up until now, has shown limited response to chemotherapeutic approaches.
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Affiliation(s)
- Henry F Frierson
- Department of Pathology, University of Virginia Health System, Charlottesville, Virginia 22908-0214, USA.
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Ida-Yonemochi H, Noda T, Shimokawa H, Saku T. Disturbed tooth eruption in osteopetrotic (op/op) mice: histopathogenesis of tooth malformation and odontomas. J Oral Pathol Med 2002; 31:361-73. [PMID: 12201247 DOI: 10.1034/j.1600-0714.2002.00087.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Odontoma-like structures are formed in the jaw bone of osteopetrotic (op/op) mice, which have a congenital deficiency in osteoclastic differentiation due to the absence of functional macrophage colony-stimulating factor (M-CSF). METHODS To clarify the histopathogenesis of tooth malformation and odontoma-like structures, a 2-year postnatal process of development of the op/op mandibular incisor was examined radiologically and histologically. At the same time, extracellular matrix (ECM) remodeling around tooth germs was analyzed immunohistochemically. RESULTS Abnormal forms of op/op tooth germ were noticeable even at 3 days after birth on a radiogram. Histologically, op/op mice were clearly distinguished by the disappearance of dental follicular space at 3 days. With aging, bone trabeculae, which were not remodeled, penetrated into op/op tooth germs and divided them into several daughter germs, which were recognized as odontomas. In mandibular incisor bodies, the immature ECM components, such as heparan sulfate proteoglycan and tenascin, were preserved diffusely in the dental papilla/pulp, which indicates that maturation of the stroma does not take place in op/op mandibular incisors. CONCLUSION The observation suggests that the disturbed morphogenesis of op/op tooth germs is functionally explained by the disordered immunolocalization of ECM molecules, and that the dental follicular space is essential for normal tooth development because it prevents bone penetration into the tooth germs.
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Affiliation(s)
- Hiroko Ida-Yonemochi
- Division of Oral Pathology, Department of Tissue Regeneration and Reconstruction, Niģata University Graduate School of Medical and Dental Sciences, Niģata, Japan
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Félix A, Rosa JC, Nunes JFM, Fonseca I, Cidadão A, Soares J. Hyalinizing clear cell carcinoma of salivary glands: a study of extracellular matrix. Oral Oncol 2002; 38:364-8. [PMID: 12076700 DOI: 10.1016/s1368-8375(01)00072-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Hyalinizing clear cell carcinoma (HCCC) is a recently described low-grade carcinoma of the salivary glands presenting two main histological features: clear neoplastic cells and prominent hyalinized stroma. Our aim was to characterize the composition of the hyalinized stroma in three cases of HCCC. An immuno-histochemical study using laminin and type I, III and IV collagens, fibronectin and tenascin antibodies was performed. In one case, electron microscopy study was also done. Collagen I and fibronectin were always present in tumoral stroma. Collagen III was documented in two cases and tenascin at the invasive front of the neoplasm. Collagen IV and laminin were found around neoplastic cells but not at the interstitial stroma. Foci of basal lamina reduplication and large deposits of long space collagen were observed in EM. This study demonstrates that the hyalinized stroma of HCCC is not formed by the accumulation of basement membrane-type material since it is mostly composed by collagen I and fibronectin.
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Affiliation(s)
- Ana Félix
- Departamento de Patologia Morfológica, Instituto Português de Oncologia de Francisco Gentil, Rua Professor Lima Basto, 1099-023 Lisboa Codex, Portugal.
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Sabit H, Tsuneyama K, Shimonishi T, Harada K, Cheng J, Ida H, Saku T, Saito K, Nakanuma Y. Enhanced expression of basement-membrane-type heparan sulfate proteoglycan in tumor fibro-myxoid stroma of intrahepatic cholangiocarcinoma. Pathol Int 2001; 51:248-56. [PMID: 11350606 DOI: 10.1046/j.1440-1827.2001.01201.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
To investigate the molecular mechanism for enhanced fibrous stroma formation in intrahepatic cholangiocarcinoma (ICC), we surveyed the expression pattern of basement-membrane-type heparan sulfate proteoglycan (HSPG; also known as perlecan) at the core protein and the mRNA level in ICC as well as in other liver neoplasms and reactive hepatic diseases. Immunohistochemistry of paraffin-embedded liver sections with hyaluronidase pretreatment showed that HSPG was present in small amounts in normal liver around the bile ducts and the blood vessels within the portal area. There was no evident expression within the hepatic lobules. Intense immunoexpression of HSPG was seen in the tumor-specific fibro-myxoid stroma of ICC and metastatic liver cancer originating from the colon. However, tumor-specific stroma of hepatocellular carcinomas showed little or no expression of HSPG. At the mRNA level, signals for HSPG were found in tumor cells of cholangiocarcinoma and metastatic colonic carcinomas, and in myofibroblasts in the tumor fibro-myxoid-specific stroma. From immunoprecipitation and reverse transcription-polymerase chain reaction (RT-PCR) analyses, a cultured human intrahepatic cholangiocarcinoma cell line (CCKS1), was found to express high levels of HSPG core protein and mRNA. These findings suggest that biliary and metastatic colon carcinoma cells as well as stromal myofibroblasts have a potential for HSPG production. In order to investigate the growth, invasion and metastatic ability of ICC, further study of the 'self-made' stromal component of ICC may provide a new approach.
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Affiliation(s)
- H Sabit
- Second Department of Pathology, Kanazawa University School of Medicine, Kanazawa, Japan
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