101
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Kato Y, Ogasawara S, Oki H, Honma R, Takagi M, Fujii Y, Nakamura T, Saidoh N, Kanno H, Umetsu M, Kamata S, Kubo H, Yamada M, Sawa Y, Morita KI, Harada H, Suzuki H, Kaneko MK. Novel Monoclonal Antibody LpMab-17 Developed by CasMab Technology Distinguishes Human Podoplanin from Monkey Podoplanin. Monoclon Antib Immunodiagn Immunother 2016; 35:109-16. [DOI: 10.1089/mab.2015.0077] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Affiliation(s)
- Yukinari Kato
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Satoshi Ogasawara
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroharu Oki
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Japan
- Department of Orthopaedic Surgery, Faculty of Medicine, Yamagata University, Yamagata, Japan
| | - Ryusuke Honma
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Japan
- Department of Orthopaedic Surgery, Faculty of Medicine, Yamagata University, Yamagata, Japan
| | - Michiaki Takagi
- Department of Orthopaedic Surgery, Faculty of Medicine, Yamagata University, Yamagata, Japan
| | - Yuki Fujii
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takuro Nakamura
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Noriko Saidoh
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hazuki Kanno
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Japan
- Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, Sendai, Japan
| | - Mitsuo Umetsu
- Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, Sendai, Japan
| | - Satoshi Kamata
- Department of Advanced Preventive Medicine for Infectious Disease, Tohoku University Graduate School of Medicine, Sendai, Japan
- Department of Thoracic Surgery, Institute of Development, Aging, and Cancer, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroshi Kubo
- Department of Advanced Preventive Medicine for Infectious Disease, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Mitsuhiro Yamada
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yoshihiko Sawa
- Department of Morphological Biology, Fukuoka Dental College, Fukuoka, Japan
| | - Kei-ichi Morita
- Department of Oral and Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiroyuki Harada
- Department of Oral and Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiroyoshi Suzuki
- Department of Pathology and Laboratory Medicine, Sendai Medical Center, Sendai, Japan
| | - Mika Kato Kaneko
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Japan
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102
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Kato Y, Ogasawara S, Oki H, Goichberg P, Honma R, Fujii Y, Kaneko MK. LpMab-12 Established by CasMab Technology Specifically Detects Sialylated O-Glycan on Thr52 of Platelet Aggregation-Stimulating Domain of Human Podoplanin. PLoS One 2016; 11:e0152912. [PMID: 27031228 PMCID: PMC4816300 DOI: 10.1371/journal.pone.0152912] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 03/21/2016] [Indexed: 01/21/2023] Open
Abstract
Podoplanin (PDPN), also known as Aggrus, possesses three tandem repeat of platelet aggregation-stimulating (PLAG) domains in its N-terminus. Among the PLAG domains, sialylated O-glycan on Thr52 of PLAG3 is essential for the binding to C-type lectin-like receptor-2 (CLEC-2) and the platelet-aggregating activity of human PDPN (hPDPN). Although various anti-hPDPN monoclonal antibodies (mAbs) have been generated, no specific mAb has been reported to target the epitope containing glycosylated Thr52. We recently established CasMab technology to develop mAbs against glycosylated membrane proteins. Herein, we report the development of a novel anti-glycopeptide mAb (GpMab), LpMab-12. LpMab-12 detected endogenous hPDPN by flow cytometry. Immunohistochemical analyses also showed that hPDPN-expressing lymphatic endothelial and cancer cells were clearly labeled by LpMab-12. The minimal epitope of LpMab-12 was identified as Asp49-Pro53 of hPDPN. Furthermore, LpMab-12 reacted with the synthetic glycopeptide of hPDPN, corresponding to 38-54 amino acids (hpp3854: 38-EGGVAMPGAEDDVVTPG-54), which carries α2-6 sialylated N-acetyl-D-galactosamine (GalNAc) on Thr52. LpMab-12 did not recognize non-sialylated GalNAc-attached glycopeptide, indicating that sialylated GalNAc on Thr52 is necessary for the binding of LpMab-12 to hPDPN. Thus, LpMab-12 could serve as a new diagnostic tool for determining whether hPDPN possesses the sialylation on Thr52, a site-specific post-translational modification critical for the hPDPN association with CLEC-2.
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Affiliation(s)
- Yukinari Kato
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, 2–1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980–8575, Japan
| | - Satoshi Ogasawara
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, 2–1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980–8575, Japan
| | - Hiroharu Oki
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, 2–1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980–8575, Japan
| | - Polina Goichberg
- Department of Anesthesia, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, United States of America
| | - Ryusuke Honma
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, 2–1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980–8575, Japan
| | - Yuki Fujii
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, 2–1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980–8575, Japan
| | - Mika K. Kaneko
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, 2–1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980–8575, Japan
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103
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Sankiewicz A, Guszcz T, Mena-Hortelano R, Zukowski K, Gorodkiewicz E. Podoplanin serum and urine concentration in transitional bladder cancer. Cancer Biomark 2016; 16:343-50. [DOI: 10.3233/cbm-160572] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Anna Sankiewicz
- Department of Electrochemistry, Institute of Chemistry, University of Bialystok, Bialystok, Poland
| | - Tomasz Guszcz
- Department of Urology, J. Sniadecki Provincial Hospital of Bialystok, Bialystok, Poland
| | | | - Krzysztof Zukowski
- Department of Electrochemistry, Institute of Chemistry, University of Bialystok, Bialystok, Poland
| | - Ewa Gorodkiewicz
- Department of Electrochemistry, Institute of Chemistry, University of Bialystok, Bialystok, Poland
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104
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Wu Y, Liu Q, Yan X, Kato Y, Tanaka M, Inokuchi S, Yoshizawa T, Morohashi S, Kijima H. Podoplanin-mediated TGF-β-induced epithelial-mesenchymal transition and its correlation with bHLH transcription factor DEC in TE-11 cells. Int J Oncol 2016; 48:2310-20. [PMID: 27035755 PMCID: PMC4863730 DOI: 10.3892/ijo.2016.3445] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 02/02/2016] [Indexed: 11/18/2022] Open
Abstract
Podoplanin is reported involved in the collective cell invasion, another tumor invasion style which is distinct from the single cell invasion, so-called epithelial-mesenchymal transition (EMT). In this study, we investigated the correlation between podoplanin and EMT-related markers in esophageal squamous cell carcinoma (ESCC), and evaluated its linkage with the basic helix-loop-helix (bHLH) transcription factor differentiated embryonic chondrocyte (DEC) 1 and DEC2. Three ESCC cell lines and human squamous cell carcinoma A431 cells were subjected to western blot analyses for podoplanin and EMT markers, as well as the expression of DEC1 and DEC2. By RT-qPCR and western blotting, we found that TGF-β increased the expression of podoplanin and mensenchymal markers (e.g., N-cadherin and vimentin), while decreased the expression of epithelial markers (e.g., Claudin-4 and E-cadherin), accompanied by Smad2 phosphorylation and slug activation. Moreover, TGF-β has different effects on the expression of DEC1 and DEC2, that is, it upregulates DEC1, but downregulates DEC2. Capability of cell proliferation, invasion and migration were further analyzed using CCK-8 assay, Matrigel-invasion assay, and the wound-healing assay, respectively. The proliferation, invasion and migration ability were significantly lost in podoplanin-knockdown cells when compared with the scrambled siRNA group. In addition to these changes, the expression of Claudin-4, but not that of Claudin-1 or E-cadherin, was induced by the siRNA against podoplanin. On the contrary, overexpression of DEC1 and DEC2 exhibits opposite effects on podoplanin, but only slight effect on Claudin-4 was detected. These data indicated that podoplanin is significantly associated with EMT of TE-11 cells, and may be directly or indirectly regulated by bHLH transcription factors DEC1 and DEC2.
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Affiliation(s)
- Yunyan Wu
- Department of Pathology and Bioscience, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori 036-8562, Japan
| | - Qiang Liu
- Department of Pathology and Bioscience, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori 036-8562, Japan
| | - Xu Yan
- Department of Pathology and Bioscience, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori 036-8562, Japan
| | - Yukio Kato
- Department of Dental and Medical Biochemistry, Hiroshima University Graduate School of Biomedical Science, Hiroshima 734-8553, Japan
| | - Makiko Tanaka
- Department of Critical Care and Emergency Medicine, Tokai University School of Medicine, Isehara, Kanagawa 259-1193, Japan
| | - Sadaki Inokuchi
- Department of Critical Care and Emergency Medicine, Tokai University School of Medicine, Isehara, Kanagawa 259-1193, Japan
| | - Tadashi Yoshizawa
- Department of Pathology and Bioscience, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori 036-8562, Japan
| | - Satoko Morohashi
- Department of Pathology and Bioscience, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori 036-8562, Japan
| | - Hiroshi Kijima
- Department of Pathology and Bioscience, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori 036-8562, Japan
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105
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Oki H, Honma R, Ogasawara S, Fujii Y, Liu X, Takagi M, Kaneko MK, Kato Y. Development of Sensitive Monoclonal Antibody PMab-2 Against Rat Podoplanin. Monoclon Antib Immunodiagn Immunother 2015; 34:396-403. [DOI: 10.1089/mab.2015.0041] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Affiliation(s)
- Hiroharu Oki
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Aoba-ku, Sendai, Miyagi, Japan
- Department of Orthopaedic Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Ryusuke Honma
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Aoba-ku, Sendai, Miyagi, Japan
- Department of Orthopaedic Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Satoshi Ogasawara
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Aoba-ku, Sendai, Miyagi, Japan
| | - Yuki Fujii
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Aoba-ku, Sendai, Miyagi, Japan
| | - Xing Liu
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Aoba-ku, Sendai, Miyagi, Japan
- Department of Orthopaedic Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Michiaki Takagi
- Department of Orthopaedic Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Mika K. Kaneko
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Aoba-ku, Sendai, Miyagi, Japan
| | - Yukinari Kato
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Aoba-ku, Sendai, Miyagi, Japan
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106
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Asai J, Hirakawa S, Sakabe JI, Kishida T, Wada M, Nakamura N, Takenaka H, Mazda O, Urano T, Suzuki-Inoue K, Tokura Y, Katoh N. Platelets Regulate the Migration of Keratinocytes via Podoplanin/CLEC-2 Signaling during Cutaneous Wound Healing in Mice. THE AMERICAN JOURNAL OF PATHOLOGY 2015; 186:101-8. [PMID: 26597882 DOI: 10.1016/j.ajpath.2015.09.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 09/16/2015] [Accepted: 09/24/2015] [Indexed: 01/10/2023]
Abstract
Podoplanin is an endogenous ligand for C-type lectin-like receptor 2 (CLEC-2), which is expressed on platelets. Recent evidence indicates that this specific marker of lymphatic endothelial cells is also expressed by keratinocytes at the edge of wounds. However, whether podoplanin or platelets play a role in keratinocyte activity during wound healing remains unknown. We evaluated the effect of podoplanin expression levels on keratinocyte motility using cultured primary normal human epidermal keratinocytes (NHEKs). Down-regulation of podoplanin in NHEKs via transfection with podoplanin siRNA inhibited their migration, indicating that podoplanin plays a mandatory role in this process. In addition, down-regulation of podoplanin was correlated with up-regulation of E-cadherin, suggesting that podoplanin-mediated stimulation of keratinocyte migration is associated with a loss of E-cadherin. Both the addition of platelets and treatment with CLEC-2 inhibited the migration of NHEKs. The down-regulation of RhoA activity and the up-regulation of E-cadherin in keratinocytes were also induced by CLEC-2. In conclusion, these results suggest that podoplanin/CLEC-2 signaling regulates keratinocyte migration via modulating E-cadherin expression through RhoA signaling. Altering the regulation of keratinocyte migration by podoplanin might be a novel therapeutic approach to improve wound healing.
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Affiliation(s)
- Jun Asai
- Department of Dermatology, Kyoto Prefectural University of Medicine, Kyoto, Japan.
| | - Satoshi Hirakawa
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Jun-ichi Sakabe
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Tsunao Kishida
- Department of Immunology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Makoto Wada
- Department of Dermatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Naomi Nakamura
- Department of Dermatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hideya Takenaka
- Department of Dermatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Osam Mazda
- Department of Immunology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tetsumei Urano
- Department of Physiology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Katsue Suzuki-Inoue
- Department of Clinical and Laboratory Medicine, Faculty of Medicine, University of Yamanashi, Kofu, Japan
| | - Yoshiki Tokura
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Norito Katoh
- Department of Dermatology, Kyoto Prefectural University of Medicine, Kyoto, Japan
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107
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Oki H, Ogasawara S, Kaneko MK, Takagi M, Yamauchi M, Kato Y. Characterization of monoclonal antibody LpMab-3 recognizing sialylated glycopeptide of podoplanin. Monoclon Antib Immunodiagn Immunother 2015; 34:44-50. [PMID: 25723283 PMCID: PMC4350263 DOI: 10.1089/mab.2014.0087] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Podoplanin (PDPN/Aggrus/T1α/gp36/OTS-8), a type I transmembrane sialoglycoprotein, is involved in platelet aggregation, cell invasion, and cancer metastasis. Podoplanin expression in cancer cells or cancer-associated fibroblasts was reported to be involved in poor prognosis of several cancers. Furthermore, podoplanin is expressed in lymphatic endothelial cells or lung type I alveolar cells. Although many anti-podoplanin monoclonal antibodies (MAbs), such as NZ-1 and D2–40, have been established, almost all anti-podoplanin MAbs are produced against a platelet aggregation-inducing (PLAG) domain. In this study, we produced and characterized a novel anti-podoplanin monoclonal antibody, LpMab-3, the epitope of which is a sialylated glycopeptide of podoplanin. We identified the minimum epitope of LpMab-3 as Thr76–Glu81 of human podoplanin, which is different from PLAG domain, using Western blot analysis and flow cytometry. Immunohistochemical analysis showed that LpMab-3 is useful for detecting lung type I alveolar cells and lymphatic endothelial cells. Because LpMab-3 detects only sialylated podoplanin, it could be useful for uncovering the physiological function of sialylated human podoplanin.
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Affiliation(s)
- Hiroharu Oki
- 1 Department of Regional Innovation, Tohoku University Graduate School of Medicine , Sendai, Miyagi, Japan
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108
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Sgaramella N, Lindell Jonsson E, Boldrup L, Califano L, Coates PJ, Tartaro G, Lo Muzio L, Fåhraeus R, Colella G, Dell'Aversana Orabona G, Loljung L, Santagata M, Rossiello R, Wilms T, Danielsson K, Laurell G, Nylander K. High expression of podoplanin in squamous cell carcinoma of the tongue occurs predominantly in patients ≤40 years but does not correlate with tumour spread. JOURNAL OF PATHOLOGY CLINICAL RESEARCH 2015; 2:3-8. [PMID: 27499910 PMCID: PMC4858125 DOI: 10.1002/cjp2.28] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 08/24/2015] [Indexed: 12/15/2022]
Abstract
More than 30% of patients with squamous cell carcinoma (SCC) of the mobile tongue have clinically undetectable lymph node metastasis. Tumour cells can spread as single cells or collectively. A protein known to play a role in both processes is podoplanin, which is expressed in endothelial cells not only in lymph vessels but also in some aggressive tumours with high invasive and metastatic potential. Here we studied samples from 129 patients with primary SCC of the tongue for expression of podoplanin using immunohistochemistry. mRNA levels were analysed in another 27 cases of tongue SCC with adjacent clinically tumour‐free tongue tissue and 14 tongue samples from healthy donors. Higher levels of podoplanin were seen in tumours compared to both normal tongue and clinically normal tongue in the tumour vicinity. No association was found between levels of podoplanin, presence of lymph node metastases or other clinical factors. Patients aged 40 or less were more likely to express high levels of podoplanin protein compared to older patients (p = 0.027). We conclude that levels of podoplanin in primary tongue SCCs are not associated with lymph node metastases. However, tongue SCCs arising in young patients (≤40 years of age) are more likely to express high levels of podoplanin than tongue SCCs that arise in the more elderly. The data suggest that podoplanin has a distinctive role in young patients, who are known to have a poor prognosis: these patients may, therefore, benefit from podoplanin inhibitory therapies.
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Affiliation(s)
- Nicola Sgaramella
- Department of Medical BiosciencesUmeå UniversityUmeåSweden; Second University of Naples, Multidisciplinary Department of MedicalSurgical and Dental SpecialtiesNaplesItaly; Department of Neuroscience Reproductive and Dentistry SciencesUniversity of Naples Federico IINaplesItaly
| | - Eva Lindell Jonsson
- Department of Clinical Sciences ENT, Uppsala University SE-751 05 Uppsala Sweden
| | - Linda Boldrup
- Department of Medical Biosciences Umeå University Umeå Sweden
| | - Luigi Califano
- Department of Neuroscience Reproductive and Dentistry Sciences University of Naples Federico II Naples Italy
| | - Philip J Coates
- Division of Medical Sciences University of Dundee, Ninewells Hospital and Medical School DD1 9SY Dundee UK
| | - Gianpaolo Tartaro
- Second University of Naples, Multidisciplinary Department of Medical Surgical and Dental Specialties Naples Italy
| | - Lorenzo Lo Muzio
- Department of Clinical and Experimental Medicine University of Foggia 71122 Foggia Italy
| | - Robin Fåhraeus
- University Paris Diderot, INSERM UMRS116227 rue Juliette DoduParis75010France; RECAMOMasaryk Memorial Cancer InstituteZluty kopec 7656 53BrnoCzech Republic
| | - Giuseppe Colella
- Second University of Naples, Multidisciplinary Department of Medical Surgical and Dental Specialties Naples Italy
| | | | - Lotta Loljung
- Department of Medical Biosciences Umeå University Umeå Sweden
| | - Mario Santagata
- Second University of Naples, Multidisciplinary Department of Medical Surgical and Dental Specialties Naples Italy
| | - Riccardo Rossiello
- Dipartimento Universitario di Anatomia Patologica Seconda Universita' Degli Studi di Napoli Piazza Miraglia 80138 Naples Italy
| | - Torben Wilms
- Department of Clinical Sciences/ENT Umeå University Umeå Sweden
| | | | - Göran Laurell
- Department of Clinical Sciences ENT, Uppsala University SE-751 05 Uppsala Sweden
| | - Karin Nylander
- Department of Medical Biosciences Umeå University Umeå Sweden
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109
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Ogasawara S, Oki H, Kaneko MK, Hozumi Y, Liu X, Honma R, Fujii Y, Nakamura T, Goto K, Takagi M, Kato Y. Development of Monoclonal Antibody LpMab-10 Recognizing Non-glycosylated PLAG1/2 Domain Including Thr34 of Human Podoplanin. Monoclon Antib Immunodiagn Immunother 2015; 34:318-26. [DOI: 10.1089/mab.2015.0018] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Satoshi Ogasawara
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Hiroharu Oki
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- Department of Orthopaedic Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Mika K. Kaneko
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Yasukazu Hozumi
- Department of Anatomy and Cell Biology, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Xing Liu
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- Department of Orthopaedic Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Ryusuke Honma
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- Department of Orthopaedic Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Yuki Fujii
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Takuro Nakamura
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Kaoru Goto
- Department of Anatomy and Cell Biology, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Michiaki Takagi
- Department of Orthopaedic Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Yukinari Kato
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
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110
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Kaneko MK, Oki H, Hozumi Y, Liu X, Ogasawara S, Takagi M, Goto K, Kato Y. Monoclonal Antibody LpMab-9 Recognizes O-glycosylated N-Terminus of Human Podoplanin. Monoclon Antib Immunodiagn Immunother 2015; 34:310-7. [DOI: 10.1089/mab.2015.0022] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Mika K. Kaneko
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Hiroharu Oki
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- Department of Orthopaedic Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Yasukazu Hozumi
- Department of Anatomy and Cell Biology, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Xing Liu
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- Department of Orthopaedic Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Satoshi Ogasawara
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Michiaki Takagi
- Department of Orthopaedic Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Kaoru Goto
- Department of Anatomy and Cell Biology, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Yukinari Kato
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
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112
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Prasad B, Kashyap B, Babu GS, Kumar GR, Manyam R. Expression of Podoplanin in Different Grades of Oral Squamous Cell Carcinoma. Ann Med Health Sci Res 2015; 5:299-304. [PMID: 26229720 PMCID: PMC4512124 DOI: 10.4103/2141-9248.160181] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Background: The expression of podoplanin is up-regulated in a number of different human cancers, including squamous cell carcinoma of the oral cavity and its relationship with tumor invasion raises the possibility that podoplanin expression could be used as a biomarker for diagnosis and prognosis. Aim: The aim of the present study is to evaluate the expression of podoplanin in different grades of squamous cell carcinoma (SCC) and to correlate the expression of podoplanin with relevant clinical features such as age, sex, site and associated habits. Materials and Methods: Retrospective study was carried on formalin fixed, paraffin embedded blocks of oral SCC (OSCC) from the archives of Department of Oral and Maxillofacial Pathology, Vishnu Dental College, Bhimavaram. Thirty diagnosed cases were included, of which 10 were well-differentiated SCC (WDSCC) (n = 10), 10 moderately DSCC and 10 poorly DSCC. Demographics including age, sex, gender and associated habit history, were recorded. Immunohistochemical staining was done with podoplanin anti D2–40 antibody, for all the cases of OSCC and assessed qualitatively. The data obtained were tabulated and subjected to statistical analysis. Results: In the present study, 27 cases of SCC showed podoplanin expression and remaining three cases showed no expression. The scoring criterion suggested by Yuan et al. was followed for semi-quantitative assessment. OSCC, seven cases presented weak expression (Immunoreactive score [IRS] 0–3), 15 presented moderate expression (IRS Score 4–7) and 5 presented high expression (IRS Score > 8). The assessment of podoplanin expression in the cytoplasm, the membrane and the cytoplasm and membrane (both) of tumor cells showed overall high positivity in the cytoplasmic followed by both and the membrane. Conclusion: Podoplanin could be a potent biomarker in assessing the cytoplasm/membrane staining of tumor cells. Furthermore, a high level of podoplanin expression is suggestive of high frequency of lymph node metastasis and immature status in the differentiation process of OSCC.
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Affiliation(s)
- B Prasad
- Department of Oral Pathology and Microbiology, Vishnu Dental College, Bhimavaram, Andhra Pradesh, India
| | - B Kashyap
- Department of Oral Pathology and Microbiology, Vishnu Dental College, Bhimavaram, Andhra Pradesh, India
| | - G S Babu
- Department of Oral Pathology and Microbiology, Vishnu Dental College, Bhimavaram, Andhra Pradesh, India
| | - G R Kumar
- Department of Oral Pathology and Microbiology, Vishnu Dental College, Bhimavaram, Andhra Pradesh, India
| | - R Manyam
- Department of Oral Pathology and Microbiology, Vishnu Dental College, Bhimavaram, Andhra Pradesh, India
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113
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Oki H, Kaneko MK, Ogasawara S, Tsujimoto Y, Liu X, Sugawara M, Takakubo Y, Takagi M, Kato Y. Characterization of Monoclonal Antibody LpMab-7 Recognizing Non-PLAG Domain of Podoplanin. Monoclon Antib Immunodiagn Immunother 2015; 34:174-80. [DOI: 10.1089/mab.2014.0090] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Hiroharu Oki
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- Department of Orthopaedic Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Mika K. Kaneko
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Satoshi Ogasawara
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Yuta Tsujimoto
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Xing Liu
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- Department of Orthopaedic Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Masato Sugawara
- Department of Orthopaedic Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Yuya Takakubo
- Department of Orthopaedic Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Michiaki Takagi
- Department of Orthopaedic Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Yukinari Kato
- Department of Regional Innovation, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
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114
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Krishnan H, Retzbach EP, Ramirez MI, Liu T, Li H, Miller WT, Goldberg GS. PKA and CDK5 can phosphorylate specific serines on the intracellular domain of podoplanin (PDPN) to inhibit cell motility. Exp Cell Res 2015; 335:115-22. [PMID: 25959509 DOI: 10.1016/j.yexcr.2015.04.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 04/26/2015] [Accepted: 04/28/2015] [Indexed: 12/12/2022]
Abstract
Podoplanin (PDPN) is a transmembrane glycoprotein that promotes tumor cell migration, invasion, and cancer metastasis. In fact, PDPN expression is induced in many types of cancer. Thus, PDPN has emerged as a functionally relevant cancer biomarker and chemotherapeutic target. PDPN contains 2 intracellular serine residues that are conserved between species ranging from mouse to humans. Recent studies indicate that protein kinase A (PKA) can phosphorylate PDPN in order to inhibit cell migration. However, the number and identification of specific residues phosphorylated by PKA have not been defined. In addition, roles of other kinases that may phosphorylate PDPN to control cell migration have not been investigated. We report here that cyclin dependent kinase 5 (CDK5) can phosphorylate PDPN in addition to PKA. Moreover, results from this study indicate that PKA and CDK5 cooperate to phosphorylate PDPN on both intracellular serine residues to decrease cell motility. These results provide new insight into PDPN phosphorylation dynamics and the role of PDPN in cell motility. Understanding novel mechanisms of PDPN intracellular signaling could assist with designing novel targeted chemotherapeutic agents and procedures.
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Affiliation(s)
- Harini Krishnan
- Graduate School of Biomedical Sciences and Department of Molecular Biology, Rowan University School of Osteopathic Medicine, Science Center, 2 Medical Center Drive, Stratford, NJ 08084, USA
| | - Edward P Retzbach
- Graduate School of Biomedical Sciences and Department of Molecular Biology, Rowan University School of Osteopathic Medicine, Science Center, 2 Medical Center Drive, Stratford, NJ 08084, USA
| | - Maria I Ramirez
- Pulmonary Center, Department of Medicine, Boston University School of Medicine, Boston, MA 02118, USA
| | - Tong Liu
- Center for Advanced Proteomics Research and Department of Biochemistry and Molecular Biology, Rutgers New Jersey Medical School Cancer Center,205 S. Orange Avenue, F-1226, Newark, NJ 07103, USA
| | - Hong Li
- Center for Advanced Proteomics Research and Department of Biochemistry and Molecular Biology, Rutgers New Jersey Medical School Cancer Center,205 S. Orange Avenue, F-1226, Newark, NJ 07103, USA
| | - W Todd Miller
- Department of Physiology and Biophysics, Basic Science Tower T-5, Stony Brook University, Stony Brook, NY 11794-8661, USA
| | - Gary S Goldberg
- Graduate School of Biomedical Sciences and Department of Molecular Biology, Rowan University School of Osteopathic Medicine, Science Center, 2 Medical Center Drive, Stratford, NJ 08084, USA.
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115
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Tsuneki M, Madri JA, Saku T. Cell–extracellular matrix interactions in oral tumorigenesis: Roles of podoplanin and CD44 and modulation of Hippo pathway. J Oral Biosci 2015. [DOI: 10.1016/j.job.2015.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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116
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Alteration in the podoplanin-ezrin-cytoskeleton linkage is an important initiation event of the podocyte injury in puromycin aminonucleoside nephropathy, a mimic of minimal change nephrotic syndrome. Cell Tissue Res 2015; 362:201-13. [PMID: 25920588 DOI: 10.1007/s00441-015-2178-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Accepted: 03/20/2015] [Indexed: 10/23/2022]
Abstract
Podoplanin was identified as a protein associated with the transformation of arborized foot processes of glomerular epithelial cells (podocytes) to flat feet. However, the function of podoplanin in the podocyte is not yet fully clarified. In this study, we analyzed the molecular nature of podoplanin, and its expression in rat nephrotic models and patients with minimal change nephrotic syndrome (MCNS). We demonstrated here that podoplanin has two forms: one contains abundant sialic acid and the other a lesser amount of sialic acid. Podoplanin bound ezrin to interact with the cytoskeleton. The silencing of podoplanin in cultured podocytes caused a change in the cell shape and the distribution of ezrin and actin. The expression of podoplanin was clearly reduced before the onset of proteinuria in puromycin aminonucleoside (PAN) nephropathy, a mimic of MCNS, and the decrease in the expression of podoplanin became more evident at the proteinuric stage. Podoplanin was detected in normal urine samples, and the amount of urinary podoplanin markedly increased on day 1 of PAN nephropathy. Urinary ezrin was also detected. The amount of the phosphorylated ezrin was reduced, while the amount of the podoplanin-interacting ezrin increased. The podoplanin expression was reduced in a patient with active-phase MCNS. It is conceivable that the alteration of the podoplanin-ezrin-cytoskeleton linkage is an important event of the podocyte injury in MCNS.
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117
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The Role of Podoplanin in the Lymphangiogenesis of Oral Squamous Carcinomas. CURRENT HEALTH SCIENCES JOURNAL 2015; 41:126-134. [PMID: 30364917 PMCID: PMC6201202 DOI: 10.12865/chsj.41.02.07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Accepted: 03/01/2015] [Indexed: 11/18/2022]
Abstract
Oral squamous cells carcinoma (OSCC) mortality rate ranges between 29-40/100,000 inhabitants. Regional lymph node metastases occur in 30-40% cases and are associated with unfavorable prognosis and decreased survival. Recentely it was suggested that the tumor-associated lymphatic vessels formation plays an active role in metastasis proces of several human malignancies, including OSCC. In the present study we investigated comparatively podoplanin immunoexpression in OSCC in both the tumor cells and lymphatic vessels reported to clinicopathological prognostic parameters. Material and methods The study included a total of 25 cases of OSCC. We investigated clinico-pathological parameters as age, gender, tumor site, and degree of differentiation, size and depth of invasion (pT), lymph node status (pN). Histologic classification was done according to the WHO criteria. For immunohistochemical (IHC) analysis we used podoplanin (Dako, clone D2-40). As visualization system it was used LSAB2 (Dako, Redox, Romania, code K0675) and chromogen DAB (Dako, Redox, Romania, code K3468). Negative controls were obtained by omitting the primary antibodies. IHC quantification was done intensity score and by lymphatic microdensity (LVD), intratumoral and on the advancing edge. For the statistical analysis we used Student's t-tests, ANOVA, chi square and Pearson, using SPSS 10 software. Results Podoplanin immunoexpression in tumor parenchyma presented with an average of 43%, varying intensity. We found a higher intensity in weak and moderately differentiated SCC then in well differentiated ones and no difference intratumoral aand advancing edge. In relation to the degree of tumor differentiation the mean LVD D2-40 was higher in the advancing edge. SCC who presented lymph node metastasis mean values for LVD D2-4 was higher then at advancing edge and higher than those of non-metastatic carcinomas. Conclusions Podoplanin immunoexpresion suggests the involvement both in tumor growth and the acquisition of an lymphangiogenic phenotype invasive by autocrine mechanisms.
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118
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Renart J, Carrasco-Ramírez P, Fernández-Muñoz B, Martín-Villar E, Montero L, Yurrita MM, Quintanilla M. New insights into the role of podoplanin in epithelial-mesenchymal transition. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2015; 317:185-239. [PMID: 26008786 DOI: 10.1016/bs.ircmb.2015.01.009] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Podoplanin is a small mucin-like transmembrane protein expressed in several adult tissues and with an important role during embryogenesis. It is needed for the proper development of kidneys and lungs as well as accurate formation of the lymphatic vascular system. In addition, it is involved in the physiology of the immune system. A wide variety of tumors express podoplanin, both in the malignant cells and in the stroma. Although there are exceptions, the presence of podoplanin results in poor prognosis. The main consequence of forced podoplanin expression in established and tumor-derived cell lines is an increase in cell migration and, eventually, the triggering of an epithelial-mesenchymal transition, whereby cells acquire a fibroblastoid phenotype and increased motility. We will examine the current status of the role of podoplanin in the induction of epithelial-mesenchymal transition as well as the different interactions that lead to this program.
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Affiliation(s)
- Jaime Renart
- Instituto de Investigaciones Biomédicas Alberto Sols, CSIC-UAM, Madrid, Spain
| | | | | | - Ester Martín-Villar
- Instituto de Investigaciones Biomédicas Alberto Sols, CSIC-UAM, Madrid, Spain
| | - Lucía Montero
- Instituto de Investigaciones Biomédicas Alberto Sols, CSIC-UAM, Madrid, Spain
| | - María M Yurrita
- Instituto de Investigaciones Biomédicas Alberto Sols, CSIC-UAM, Madrid, Spain
| | - Miguel Quintanilla
- Instituto de Investigaciones Biomédicas Alberto Sols, CSIC-UAM, Madrid, Spain
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119
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de Vicente JC, Santamarta TR, Rodrigo JP, García-Pedrero JM, Allonca E, Blanco-Lorenzo V. Expression of podoplanin in the invasion front of oral squamous cell carcinoma is not prognostic for survival. Virchows Arch 2015; 466:549-58. [PMID: 25726183 DOI: 10.1007/s00428-015-1746-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 01/15/2015] [Accepted: 02/17/2015] [Indexed: 01/25/2023]
Abstract
Podoplanin is involved in actin remodeling of the cytoskeleton of tumor cells and may promote tumor cell invasion by increasing cell motility and formation of filopodia-like membrane protrusions. Podoplanin is expressed in a variety of tumors, but its role in head and neck cancer, particularly in oral squamous cell carcinoma, remains unclear. We studied podoplanin expression by immunohistochemistry in 92 oral squamous cell carcinomas (OSCC) using a monoclonal antibody against an epitope of podoplanin (D2-40). In terms of the number of stained cells, 34 OSCC (38 %) had low podoplanin expression (less than 33 % of cells), 33 (36 %) showed moderate expression (between 34 and 66 % of cells), and 21 (22 %) showed high expression. The intensity of immunostaining was strong in 26 (28 %) cases, moderate in 36 (40 %), and weak or negative in the remaining 30 tumors (32 %). Immunohistochemical expression of podoplanin was associated with a tumor histological grade. A diffuse pattern of podoplanin expression significantly decreased in moderately differentiated (37 %) and poorly differentiated (20 %) carcinomas compared to well-differentiated (43 %) carcinomas. In addition, the focal expression of podoplanin in the invasion front of the tumor, without expression in the tumor center, was observed in 72 % of well-differentiated tumors, 27 % of moderate tumors, and 0 % of poorly differentiated tumors. Moreover, a trend was found toward an association of diffuse podoplanin staining with the development of second primary carcinomas (13 %), in contrast to its expression in the invasion front (3 %). No association was observed between podoplanin expression and nodal metastasis.
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Affiliation(s)
- Juan Carlos de Vicente
- Department of Oral and Maxillofacial Surgery, Hospital Universitario Central de Asturias (HUCA), C/Carretera de Rubín, s/n, 33011, Oviedo, Asturias, Spain,
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120
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Costa YF, Tjioe KC, Nonogaki S, Soares FA, Lauris JRP, Oliveira DT. Are podoplanin and ezrin involved in the invasion process of the ameloblastomas? Eur J Histochem 2015; 59:2451. [PMID: 25820557 PMCID: PMC4378211 DOI: 10.4081/ejh.2015.2451] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 12/19/2014] [Accepted: 12/29/2014] [Indexed: 11/23/2022] Open
Abstract
The association between podoplanin and ezrin in the process of odontogenic tumors invasion has been suggested, but was not studied yet. Our purpose was to investigate the relationship between podoplanin and ezrin expressions in the odontogenic epithelium of ameloblastomas. Forty-seven ameloblastomas were analyzed by immunohistochemistry using anti-podoplanin and anti-ezrin antibodies. The expressions of both proteins were evaluated using a score method and the comparison and association between these proteins were verified, respectively, by Wilcoxon Signed-Rank test and by Spearman’s rank correlation coefficient, using a statistical significance level of 0.05. The majority of tumors (87.2%) exhibited strong membranous expression of podoplanin in the peripheral cells. Cytoplasmic expression of ezrin in the peripheral cells of ameloblastomas was stronger than its membranous expression. No statistically significant correlation was observed between podoplanin and ezrin. However, there was statistically significant difference between membranous podoplanin and membranous ezrin expressions, between cytoplasmic podoplanin and membranous ezrin expressions, and between cytoplasmic podoplanin and cytoplasmic ezrin expressions. There was no statistical difference between membranous podoplanin and cytoplasmic ezrin expressions. These results suggest a synergistic role of both proteins in the process of invasion of ameloblastomas.
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121
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Martín-Villar E, Borda-d'Agua B, Carrasco-Ramirez P, Renart J, Parsons M, Quintanilla M, Jones GE. Podoplanin mediates ECM degradation by squamous carcinoma cells through control of invadopodia stability. Oncogene 2014; 34:4531-44. [PMID: 25486435 PMCID: PMC4430312 DOI: 10.1038/onc.2014.388] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 09/19/2014] [Accepted: 10/11/2014] [Indexed: 12/22/2022]
Abstract
Invadopodia are actin-rich cell membrane projections used by invasive cells to penetrate the basement membrane. Control of invadopodia stability is critical for efficient degradation of the extracellular matrix (ECM); however, the underlying molecular mechanisms remain poorly understood. Here, we uncover a new role for podoplanin, a transmembrane glycoprotein closely associated with malignant progression of squamous cell carcinomas (SCCs), in the regulation of invadopodia-mediated matrix degradation. Podoplanin downregulation in SCC cells impairs invadopodia stability, thereby reducing the efficiency of ECM degradation. We report podoplanin as a novel component of invadopodia-associated adhesion rings, where it clusters prior to matrix degradation. Early podoplanin recruitment to invadopodia is dependent on lipid rafts, whereas ezrin/moesin proteins mediate podoplanin ring assembly. Finally, we demonstrate that podoplanin regulates invadopodia maturation by acting upstream of the ROCK-LIMK-Cofilin pathway through the control of RhoC GTPase activity. Thus, podoplanin has a key role in the regulation of invadopodia function in SCC cells, controlling the initial steps of cancer cell invasion.
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Affiliation(s)
- E Martín-Villar
- Instituto de Investigaciones Biomédicas 'Alberto Sols' (CSIC-UAM), Madrid, Spain.,Randall Division of Cell & Molecular Biophysics, King's College London, London, UK
| | - B Borda-d'Agua
- Randall Division of Cell & Molecular Biophysics, King's College London, London, UK
| | - P Carrasco-Ramirez
- Instituto de Investigaciones Biomédicas 'Alberto Sols' (CSIC-UAM), Madrid, Spain
| | - J Renart
- Instituto de Investigaciones Biomédicas 'Alberto Sols' (CSIC-UAM), Madrid, Spain
| | - M Parsons
- Randall Division of Cell & Molecular Biophysics, King's College London, London, UK
| | - M Quintanilla
- Instituto de Investigaciones Biomédicas 'Alberto Sols' (CSIC-UAM), Madrid, Spain
| | - G E Jones
- Randall Division of Cell & Molecular Biophysics, King's College London, London, UK
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122
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Pollitt AY, Poulter NS, Gitz E, Navarro-Nuñez L, Wang YJ, Hughes CE, Thomas SG, Nieswandt B, Douglas MR, Owen DM, Jackson DG, Dustin ML, Watson SP. Syk and Src family kinases regulate C-type lectin receptor 2 (CLEC-2)-mediated clustering of podoplanin and platelet adhesion to lymphatic endothelial cells. J Biol Chem 2014; 289:35695-710. [PMID: 25368330 PMCID: PMC4276840 DOI: 10.1074/jbc.m114.584284] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
The interaction of C-type lectin receptor 2 (CLEC-2) on platelets with Podoplanin on lymphatic endothelial cells initiates platelet signaling events that are necessary for prevention of blood-lymph mixing during development. In the present study, we show that CLEC-2 signaling via Src family and Syk tyrosine kinases promotes platelet adhesion to primary mouse lymphatic endothelial cells at low shear. Using supported lipid bilayers containing mobile Podoplanin, we further show that activation of Src and Syk in platelets promotes clustering of CLEC-2 and Podoplanin. Clusters of CLEC-2-bound Podoplanin migrate rapidly to the center of the platelet to form a single structure. Fluorescence lifetime imaging demonstrates that molecules within these clusters are within 10 nm of one another and that the clusters are disrupted by inhibition of Src and Syk family kinases. CLEC-2 clusters are also seen in platelets adhered to immobilized Podoplanin using direct stochastic optical reconstruction microscopy. These findings provide mechanistic insight by which CLEC-2 signaling promotes adhesion to Podoplanin and regulation of Podoplanin signaling, thereby contributing to lymphatic vasculature development.
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Affiliation(s)
- Alice Y Pollitt
- From the University of Birmingham, Centre for Cardiovascular Sciences, Institute of Biomedical Research, College of Medical and Dental Sciences, Edgbaston, Birmingham B15 2TT, United Kingdom,
| | - Natalie S Poulter
- From the University of Birmingham, Centre for Cardiovascular Sciences, Institute of Biomedical Research, College of Medical and Dental Sciences, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Eelo Gitz
- From the University of Birmingham, Centre for Cardiovascular Sciences, Institute of Biomedical Research, College of Medical and Dental Sciences, Edgbaston, Birmingham B15 2TT, United Kingdom, the University Medical Center Utrecht, Department of Clinical Chemistry and Haematology, 3584 CX, Utrecht, The Netherlands
| | - Leyre Navarro-Nuñez
- From the University of Birmingham, Centre for Cardiovascular Sciences, Institute of Biomedical Research, College of Medical and Dental Sciences, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Ying-Jie Wang
- the Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford OX3 9DS, United Kingdom
| | - Craig E Hughes
- From the University of Birmingham, Centre for Cardiovascular Sciences, Institute of Biomedical Research, College of Medical and Dental Sciences, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Steven G Thomas
- From the University of Birmingham, Centre for Cardiovascular Sciences, Institute of Biomedical Research, College of Medical and Dental Sciences, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Bernhard Nieswandt
- the Department of Experimental Biomedicine, University Hospital, University of Würzburg, Würzburg 97080, Germany
| | - Michael R Douglas
- the School of Immunity and Infection, University of Birmingham, Birmingham B15 2TT, United Kingdom, the Department of Neurology, Dudley Group National Health Service Foundation Trust, Dudley DY1 2HQ, United Kingdom
| | - Dylan M Owen
- the Randall Division of Cell and Molecular Biophysics, King's College London, Guy's Campus, London SE1 1UL, United Kingdom
| | - David G Jackson
- the Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Headington, Oxford OX3 9DS, United Kingdom
| | - Michael L Dustin
- the Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Diseases, University of Oxford, Headington OX3 7FY, United Kingdom, and the Department of Molecular Pathogenesis, New York University, Skirball Institute of Biomolecular Medicine, School of Medicine, New York University Langone Medical Center, New York, New York 10016
| | - Steve P Watson
- From the University of Birmingham, Centre for Cardiovascular Sciences, Institute of Biomedical Research, College of Medical and Dental Sciences, Edgbaston, Birmingham B15 2TT, United Kingdom,
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123
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Podoplanin: a novel regulator of tumor invasion and metastasis. Med Oncol 2014; 31:24. [PMID: 25142945 DOI: 10.1007/s12032-014-0024-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 05/05/2014] [Indexed: 12/17/2022]
Abstract
Podoplanin, a small mucin-type sialoglycoprotein, was recently shown to be involved in tumor progression. Podoplanin is overexpressed in cancer cells of various human malignancies, and recently, it is also detected in intratumoral stromal cells. We now appreciate that podoplanin plays a dual role in cancer: it can not only suppress tumor growth but also promote tumor progression. Researchers have identified several potential pathways invoked by podoplanin, which participate in the epithelial-to-mesenchymal transition, collective-cell migration, platelet activation and aggregation, and lymphangiogenesis, and thus regulate the tumor invasion and metastasis. Here, we discuss the current experimental and human clinical data on podoplanin to validate the multiple context-dependent functions in different microenvironments and to delineate the diverse regulatory mechanisms.
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124
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A cancer-specific monoclonal antibody recognizes the aberrantly glycosylated podoplanin. Sci Rep 2014; 4:5924. [PMID: 25080943 PMCID: PMC4118152 DOI: 10.1038/srep05924] [Citation(s) in RCA: 151] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 07/16/2014] [Indexed: 12/24/2022] Open
Abstract
Podoplanin (PDPN/Aggrus/T1α), a platelet aggregation-inducing mucin-like sialoglycoprotein, is highly expressed in many cancers and normal tissues. A neutralizing monoclonal antibody (mAb; NZ-1) can block the association between podoplanin and C-type lectin-like receptor-2 (CLEC-2) and inhibit podoplanin-induced cancer metastasis, but NZ-1 reacts with podoplanin-expressing normal cells such as lymphatic endothelial cells. In this study, we established a cancer-specific mAb (CasMab) against human podoplanin. Aberrantly glycosylated podoplanin including keratan sulfate or aberrant sialylation, which was expressed in LN229 glioblastoma cells, was used as an immunogen. The newly established LpMab-2 mAb recognized both an aberrant O-glycosylation and a Thr55-Leu64 peptide from human podoplanin. Because LpMab-2 reacted with podoplanin-expressing cancer cells but not with normal cells, as shown by flow cytometry and immunohistochemistry, it is an anti-podoplanin CasMab that is expected to be useful for molecular targeting therapy against podoplanin-expressing cancers.
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125
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Siar CH, Ishak I, Ng KH. Podoplanin, E-cadherin, β-catenin, and CD44v6 in recurrent ameloblastoma: their distribution patterns and relevance. J Oral Pathol Med 2014; 44:51-8. [DOI: 10.1111/jop.12203] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/08/2014] [Indexed: 01/08/2023]
Affiliation(s)
- Chong Huat Siar
- Department of Oro-Maxillofacial Surgical and Medical Sciences; Faculty of Dentistry; University of Malaya; Kuala Lumpur Malaysia
| | - Ismadi Ishak
- Department of Oro-Maxillofacial Surgical and Medical Sciences; Faculty of Dentistry; University of Malaya; Kuala Lumpur Malaysia
| | - Kok Han Ng
- Formerly; Unit of Stomatology; Cancer Research Centre; Institute for Medical Research; Kuala Lumpur Malaysia
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126
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Hsieh JCH, Lin HC, Huang CY, Hsu HL, Wu TMH, Lee CL, Chen MC, Wang HM, Tseng CP. Prognostic value of circulating tumor cells with podoplanin expression in patients with locally advanced or metastatic head and neck squamous cell carcinoma. Head Neck 2014; 37:1448-55. [PMID: 24844673 DOI: 10.1002/hed.23779] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 04/04/2014] [Accepted: 05/16/2014] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Podoplanin (PDPN) is a prognostic factor for head and neck squamous cell carcinoma (HNSCC). However, PDPN expression in circulating tumor cells (CTCs) and its prognostic value are not clear. METHODS The PowerMag system was used to enumerate CTCs from 53 patients with HNSCC prechemotherapy and 61 healthy donors. PDPN expression was determined by immunofluorescence staining. Results were correlated with clinicopathological parameters and clinical outcome, such as patient survival by receiver operating characteristic (ROC) and univariate and multivariate analyses. RESULTS PDPN was expressed in a subset of CTCs. Both EpCAM-positive CTC and PDPN-positive CTC counts were statistically different between the disease and nondisease groups (p < .0001) with no prognostic value. After a median follow-up of 10.5 months (range, 6.6-18.5 months), the PDPN-positive/EpCAM-positive CTC ratio >20% was a significant prognostic factor for death within 6 months (p = .011) and was correlated with poor progression-free survival (p = .016) and overall survival (p = .015). CONCLUSION PDPN-positive/EpCAM-positive CTC ratio is a prognostic factor and defining the ratio in patients with HNSCC might be valuable to clinical management.
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Affiliation(s)
- Jason Chia-Hsun Hsieh
- Division of Hematology-Oncology, Department of Internal Medicine, Chang Gung Memorial Hospital at Linkou, Taiwan, Republic of China.,Department of Chemical and Materials Engineering, Chang Gung University, Taiwan, Republic of China
| | - Hung-Chih Lin
- Graduate Institute of Biomedical Science, College of Medicine, Chang Gung University, Taiwan, Republic of China
| | - Chi-Ya Huang
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taiwan, Republic of China
| | - Hsung-Ling Hsu
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taiwan, Republic of China
| | - Tyler Min-Hsien Wu
- Graduate Institute of Biochemical and Biomedical Engineering, Chang Gung University, Taiwan, Republic of China
| | - Chia-Lin Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Taichung Veterans General Hospital, Taiwan, Republic of China.,Department of Public Health, College of Public Health, China Medical University, Taiwan, Republic of China
| | - Min-Chi Chen
- Department of Public Health and Biostatistics Consulting Center, College of Medicine, Chang Gung University, Taiwan, Republic of China
| | - Hung-Ming Wang
- Division of Hematology-Oncology, Department of Internal Medicine, Chang Gung Memorial Hospital at Linkou, Taiwan, Republic of China.,Department of Medicine, College of Medicine, Chang Gung University, Taiwan, Republic of China
| | - Ching-Ping Tseng
- Graduate Institute of Biomedical Science, College of Medicine, Chang Gung University, Taiwan, Republic of China.,Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taiwan, Republic of China.,Molecular Medicine Research Center, Chang Gung University, Taiwan, Republic of China
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127
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Podoplanin—a novel marker in oral carcinogenesis. Tumour Biol 2014; 35:8407-13. [DOI: 10.1007/s13277-014-2266-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2014] [Accepted: 06/19/2014] [Indexed: 02/04/2023] Open
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128
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Rudzińska M, Gaweł D, Sikorska J, Karpińska KM, Kiedrowski M, Stępień T, Marchlewska M, Czarnocka B. The role of podoplanin in the biology of differentiated thyroid cancers. PLoS One 2014; 9:e96541. [PMID: 24797369 PMCID: PMC4010536 DOI: 10.1371/journal.pone.0096541] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Accepted: 04/09/2014] [Indexed: 01/04/2023] Open
Abstract
Podoplanin (PDPN), a mucin-type transmembrane glycoprotein specific to the lymphatic system is expressed in a variety of human cancers, and is regarded as a factor promoting tumor progression. The purpose of this study was to elucidate the molecular role of PDPN in the biology of thyroid cancer cells. PDPN expression was evaluated in primary thyroid carcinomas and thyroid carcinoma cell lines by RT-qPCR, Western blotting, IF and IHC. To examine the role of podoplanin in determining a cell's malignant potential (cellular migration, invasion, proliferation, adhesion, motility, apoptosis), a thyroid cancer cell line with silenced PDPN expression was used. We observed that PDPN was solely expressed in the cancer cells of 40% of papillary thyroid carcinoma (PTC) tissues. Moreover, PDPN mRNA and protein were highly expressed in PTC-derived TPC1 and BcPAP cell lines but were not detected in follicular thyroid cancer derived cell lines. PDPN knock-down significantly decreased cellular invasion, and modestly reduced cell migration, while proliferation and adhesion were not affected. Our results demonstrate that PDPN mediates the invasive properties of cells derived from papillary thyroid carcinomas, suggesting that podoplanin might promote PTC progression.
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Affiliation(s)
- Magdalena Rudzińska
- Department of Biochemistry and Molecular Biology, Center of Postgraduate Medical Education, Warsaw, Poland
| | - Damian Gaweł
- Department of Biochemistry and Molecular Biology, Center of Postgraduate Medical Education, Warsaw, Poland
| | - Justyna Sikorska
- Department of Biochemistry and Molecular Biology, Center of Postgraduate Medical Education, Warsaw, Poland
| | - Kamila M. Karpińska
- Department of Biochemistry and Molecular Biology, Center of Postgraduate Medical Education, Warsaw, Poland
| | - Mirosław Kiedrowski
- Department of Pathology, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
| | - Tomasz Stępień
- Department of General and Endocrinological Surgery, Copernicus Memorial Hospital, Łódź, Poland
| | - Magdalena Marchlewska
- Department of General and Endocrinological Surgery, Copernicus Memorial Hospital, Łódź, Poland
| | - Barbara Czarnocka
- Department of Biochemistry and Molecular Biology, Center of Postgraduate Medical Education, Warsaw, Poland
- * E-mail:
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Płaszczyca A, Nilsson J, Magnusson L, Brosjö O, Larsson O, Vult von Steyern F, Domanski HA, Lilljebjörn H, Fioretos T, Tayebwa J, Mandahl N, Nord KH, Mertens F. Fusions involving protein kinase C and membrane-associated proteins in benign fibrous histiocytoma. Int J Biochem Cell Biol 2014; 53:475-81. [PMID: 24721208 DOI: 10.1016/j.biocel.2014.03.027] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 03/25/2014] [Accepted: 03/26/2014] [Indexed: 11/30/2022]
Abstract
Benign fibrous histiocytoma (BFH) is a mesenchymal tumor that most often occurs in the skin (so-called dermatofibroma), but may also appear in soft tissues (so-called deep BFH) and in the skeleton (so-called non-ossifying fibroma). The origin of BFH is unknown, and it has been questioned whether it is a true neoplasm. Chromosome banding, fluorescence in situ hybridization, single nucleotide polymorphism arrays, RNA sequencing, RT-PCR and quantitative real-time PCR were used to search for recurrent somatic mutations in a series of BFH. BFHs were found to harbor recurrent fusions of genes encoding membrane-associated proteins (podoplanin, CD63 and LAMTOR1) with genes encoding protein kinase C (PKC) isoforms PRKCB and PRKCD. PKCs are serine-threonine kinases that through their many phosphorylation targets are implicated in a variety of cellular processes, as well as tumor development. When inactive, the amino-terminal, regulatory domain of PKCs suppresses the activity of their catalytic domain. Upon activation, which requires several steps, they typically translocate to cell membranes, where they interact with different signaling pathways. The detected PDPN-PRKCB, CD63-PRKCD and LAMTOR1-PRKCD gene fusions are all predicted to result in chimeric proteins consisting of the membrane-binding part of PDPN, CD63 or LAMTOR1 and the entire catalytic domain of the PKC. This novel pathogenetic mechanism should result in constitutive kinase activity at an ectopic location. The results show that BFH indeed is a true neoplasm, and that distorted PKC activity is essential for tumorigenesis. The findings also provide means to differentiate BFH from other skin and soft tissue tumors. This article is part of a Directed Issue entitled: Rare cancers.
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Affiliation(s)
- Anna Płaszczyca
- Department of Clinical Genetics, University and Regional Laboratories, Lund University, SE-221 85 Lund, Sweden
| | - Jenny Nilsson
- Department of Clinical Genetics, University and Regional Laboratories, Lund University, SE-221 85 Lund, Sweden
| | - Linda Magnusson
- Department of Clinical Genetics, University and Regional Laboratories, Lund University, SE-221 85 Lund, Sweden
| | - Otte Brosjö
- Department of Orthopedics, Karolinska University Hospital, SE-171 76 Solna, Sweden
| | - Olle Larsson
- Department of Pathology, Karolinska University Hospital, SE-171 76 Solna, Sweden
| | | | - Henryk A Domanski
- Department of Pathology, University and Regional Laboratories, Lund University, SE-221 85 Lund, Sweden
| | - Henrik Lilljebjörn
- Department of Clinical Genetics, University and Regional Laboratories, Lund University, SE-221 85 Lund, Sweden
| | - Thoas Fioretos
- Department of Clinical Genetics, University and Regional Laboratories, Lund University, SE-221 85 Lund, Sweden
| | - Johnbosco Tayebwa
- Department of Clinical Genetics, University and Regional Laboratories, Lund University, SE-221 85 Lund, Sweden
| | - Nils Mandahl
- Department of Clinical Genetics, University and Regional Laboratories, Lund University, SE-221 85 Lund, Sweden
| | - Karolin H Nord
- Department of Clinical Genetics, University and Regional Laboratories, Lund University, SE-221 85 Lund, Sweden
| | - Fredrik Mertens
- Department of Clinical Genetics, University and Regional Laboratories, Lund University, SE-221 85 Lund, Sweden.
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130
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Expressions of ABCG2, CD133, and podoplanin in salivary adenoid cystic carcinoma. BIOMED RESEARCH INTERNATIONAL 2014; 2014:132349. [PMID: 24804195 PMCID: PMC3998002 DOI: 10.1155/2014/132349] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Accepted: 03/13/2014] [Indexed: 02/06/2023]
Abstract
Adenoid cystic carcinoma (ACC) is one of the most common salivary gland malignant tumors with a high risk of recurrence and metastasis. Current studies on cancer stem cells (CSCs) have verified that CSCs are the driving force behind tumor initiation and progression, suggesting that new cancer therapies may be established by effectively targeting and killing the CSCs. The primary goal of this study is to investigate the expression patterns of ABCG2, CD133, and podoplanin in ACC of minor salivary glands by immunohistochemistry analysis. We found that ABCG2 was weakly expressed in normal looking salivary gland tissues. A significant upregulation of ABCG2 expression in ACC was observed with a similar expression pattern of Ki-67. CD133 was detected in apical membrane of epithelial cells and podoplanin was expressed positively in myoepithelial cells of both normal looking tissue and ACC. However, no significant difference was found of the expression pattern of CD133 and podoplanin between normal looking tissues and ACC. Our observations suggest that CSCs may exist in quiescent cells with ABCG2 positive staining, which are surrounded by cells with positive expression of ABCG2 and Ki-67 in ACC, and costaining with ABCG2 and Ki-67 may help predict the location of CSCs.
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131
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De Bonis P, Lofrese G, Anile C, Pompucci A, Vigo V, Mangiola A. Radioimmunotherapy for high-grade glioma. Immunotherapy 2014; 5:647-59. [PMID: 23725287 DOI: 10.2217/imt.13.43] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Patients with high-grade glioma (HGG) still have a very poor prognosis. The infiltrative nature of the tumor and the inter- and intra-tumoral cellular and genetic heterogeneity, leading to the acquisition of new mutations over time, represent the main causes of treatment failure. Radioimmunotherapy represents an emerging approach for the treatment of HGG. Radioimmunotherapy utilizes a molecular vehicle (monoclonal antibodies) to deliver a radionuclide (the drug) to a selected cell population target. This review will provide an overview of preclinical and clinical studies to date and assess the effectiveness of radioimmunotherapy, focusing on possible future therapies for the treatment of HGG.
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Affiliation(s)
- Pasquale De Bonis
- Department of Neurosurgery, Catholic University School of Medicine, Rome, Italy.
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132
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Podoplanin is a substrate of presenilin-1/γ-secretase. Int J Biochem Cell Biol 2014; 46:68-75. [DOI: 10.1016/j.biocel.2013.11.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Revised: 10/17/2013] [Accepted: 11/05/2013] [Indexed: 11/24/2022]
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133
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Seki S, Fujiwara M, Matsuura M, Fujita S, Ikeda H, Umeda M, Asahina I, Ikeda T. Prognostic value of podoplanin expression in oral squamous cell carcinoma--a regression model auxiliary to UICC classification. Pathol Oncol Res 2013; 20:521-8. [PMID: 24281769 DOI: 10.1007/s12253-013-9723-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Accepted: 11/05/2013] [Indexed: 12/17/2022]
Abstract
Podoplanin, a type I transmembrane glycoprotein with an effect of platelet aggregation, has been reported to be one of the possible prognostic factors of oral squamous cell carcinoma (OSCC). However, the biological significance of podoplanin is largely unclear. The aim of this study was to develop a practical model for the prediction of prognosis using the grade of podoplanin expression, and also to evaluate the biological function of podoplanin. Eighty-two specimens of patients with previously untreated OSCC, who underwent either biopsy or surgery, were histopathologically and immunohistochemically analyzed. These 82 cases were composed of 66 well-differentiated, 10 moderately differentiated and 6 poorly differentiated OSCC. Podoplanin was successfully immunostained in 78 specimens, and was detected in most cases, but the frequency of positive cells varied. The prognosis of patients with more than 50 % podoplanin-positive tumor cells was significantly poorer than that of the other patients. Multivariate hazards regression analysis suggested that a linear combination of covariates, OSCC patients with more or less than 50 % podoplanin expression, age of more or less than 70 years old, mode of invasion and T3, T4 or T2 versus T1 of the UICC T-stage classification was the most effective model for evaluating the prognosis of OSCC patients. Additionally, podoplanin expression had a significant relationship to UICC clinical stage and the expression of Ki-67. An effective regression model using podoplanin expression was developed for evaluating the prognosis of OSCC and the biological significance of podoplanin was suggested to be associated with the growth and/or progression of OSCC.
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Affiliation(s)
- Sachiko Seki
- Department of Oral Pathology and Bone Metabolism, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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134
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Inoue H, Miyazaki Y, Kikuchi K, Yoshida N, Ide F, Ohmori Y, Tomomura A, Sakashita H, Kusama K. Podoplanin promotes cell migration via the EGF-Src-Cas pathway in oral squamous cell carcinoma cell lines. J Oral Sci 2013; 54:241-50. [PMID: 23047035 DOI: 10.2334/josnusd.54.241] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Human podoplanin is a type-1 transmembrane sialomucin-like glycoprotein that is involved in cell migration, tumor cell invasion and metastasis. Our recent study of oral squamous cell carcinoma (OSCC) demonstrated that the degree of immunohistochemical expression of podoplanin was correlated with the severity of epithelial dysplasia and significantly associated with a poor pathologic grade of differentiation. Furthermore, it has been reported that Src directly associates with the epidermal growth factor receptor (EGFR) in OSCC cells upon stimulation with EGF and phosphorylates Crk-associated substrate (Cas), podoplanin acting downstream of Src and Cas to promote cell migration. However, the molecular function of podoplanin remains unclear. In this study we performed real-time RT-PCR, Western blotting and scratch assay using OSCC cell lines in order to clarify the molecular biological function of podoplanin expression associated with various growth factors including EGF and with the Src-Cas signaling pathway. Podoplanin was found to have a marked influence on cancer cell migration and the expression of matrix metalloprotease-9 (MMP-9) in the oral cavity upon stimulation with EGF. Podoplanin promotes oral cancer cell migration, and the EGF-Src-Cas pathway is one of the possible mechanisms responsible for progression of cancer in the oral cavity.
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Affiliation(s)
- Harumi Inoue
- Division of Pathology, Department of Diagnostic & Therapeutic Sciences, Meikai University School of Dentistry, Sakado, Japan.
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Toll A, Masferrer E, Hernández-Ruiz ME, Ferrandiz-Pulido C, Yébenes M, Jaka A, Tuneu A, Jucglà A, Gimeno J, Baró T, Casado B, Gandarillas A, Costa I, Mojal S, Peña R, de Herreros AG, García-Patos V, Pujol RM, Hernández-Muñoz I. Epithelial to mesenchymal transition markers are associated with an increased metastatic risk in primary cutaneous squamous cell carcinomas but are attenuated in lymph node metastases. J Dermatol Sci 2013; 72:93-102. [PMID: 23928229 DOI: 10.1016/j.jdermsci.2013.07.001] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 06/18/2013] [Accepted: 07/01/2013] [Indexed: 10/26/2022]
Abstract
BACKGROUND Cutaneous squamous cell carcinoma (cSCC) is the second most common malignancy in humans and approximately 5% metastasize, usually to regional lymph nodes. Epithelial to mesenchymal transition (EMT) is a process involving loss of intercellular adhesion, acquisition of a mesenchymal phenotype and enhanced migratory potential; epithelial markers, such as E-cadherin, are down-regulated and mesenchymal proteins (Vimentin), increased. OBJECTIVE To investigate the expression of EMT markers in metastatic SCC (MSCC) and their corresponding metastases, and to correlate them with clinico-pathological factors associated with an increased risk of metastasis. METHODS We performed a retrospective study that included 146 cSCC samples (51 primary non-metastatic, 56 primary metastatic, 39 lymphatic metastases). Immunohistochemistry for E-cadherin, Vimentin, Snail, beta-catenin, Twist, Zeb1 and Podoplanin was performed. RESULTS Loss of membranous E-cadherin was observed in 77% cSCCs, with no differences between MSCC and non-MSCC. Among the transcriptional factors controlling EMT, no significant Snail1 expression was detected. Twist, Zeb1, Vimentin, beta-catenin and Podoplanin were significantly overexpressed in MSCCs. Twist ectopic expression in SCC13 cells induced Zeb1, Vimentin and Podoplanin expression and E-cadherin delocalization. These changes resulted in a scattered migration pattern in vitro. Expression of EMT markers was decreased in the metastases when compared with the corresponding primary tumors. CONCLUSION These results suggest that a partial EMT, characterized by the expression of Twist but without a total E-cadherin depletion, is involved in the acquisition of invasive traits by cSCC, but the process is downregulated in lymph node metastases.
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Affiliation(s)
- Agustí Toll
- Servei de Dermatologia, Hospital del Mar, Parc de Salut Mar, Barcelona, Spain; Cancer Research Program, IMIM (Institut Hospital del Mar d'Investigacions Mèdiques), Barcelona, Spain.
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136
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Intercellular contact augments epidermal growth factor receptor (EGFR) and signal transducer and activator of transcription 3 (STAT3)-activation which increases podoplanin-expression in order to promote squamous cell carcinoma motility. Cell Signal 2013; 25:760-5. [DOI: 10.1016/j.cellsig.2012.12.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Accepted: 12/18/2012] [Indexed: 01/13/2023]
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137
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Navarro-Núñez L, Langan SA, Nash GB, Watson SP. The physiological and pathophysiological roles of platelet CLEC-2. Thromb Haemost 2013; 109:991-8. [PMID: 23572154 DOI: 10.1160/th13-01-0060] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Accepted: 03/12/2013] [Indexed: 12/25/2022]
Abstract
CLEC-2 is a C-type lectin receptor which is highly expressed on platelets but also found at low levels on different immune cells. CLEC-2 elicits powerful platelet activation upon engagement by its endogenous ligand, the mucin-type glycoprotein podoplanin. Podoplanin is expressed in a variety of tissues, including lymphatic endothelial cells, kidney podocytes, type I lung epithelial cells, lymph node stromal cells and the choroid plexus epithelium. Animal models have shown that the correct separation of the lymphatic and blood vasculatures during embryonic development is dependent on CLEC-2-mediated platelet activation. Additionally, podoplanin-deficient mice show abnormalities in heart, lungs, and lymphoid tissues, whereas absence of CLEC-2 affects brain development. This review summarises the current understanding of the molecular pathways regulating CLEC-2 and podoplanin function and suggests other physiological and pathological processes where this molecular interaction might exert crucial roles.
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Affiliation(s)
- Leyre Navarro-Núñez
- Centre for Cardiovascular Sciences, Institute for Biomedical Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK.
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138
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Krishnan H, Ochoa-Alvarez JA, Shen Y, Nevel E, Lakshminarayanan M, Williams MC, Ramirez MI, Miller WT, Goldberg GS. Serines in the intracellular tail of podoplanin (PDPN) regulate cell motility. J Biol Chem 2013; 288:12215-21. [PMID: 23530051 DOI: 10.1074/jbc.c112.446823] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Podoplanin (PDPN) is a transmembrane receptor that affects the activities of Rho, ezrin, and other proteins to promote tumor cell motility, invasion, and metastasis. PDPN is found in many types of cancer and may serve as a tumor biomarker and chemotherapeutic target. The intracellular region of PDPN contains only two serines, and these are conserved in mammals including mice and humans. We generated cells from the embryos of homozygous null Pdpn knock-out mice to investigate the relevance of these serines to cell growth and migration on a clear (PDPN-free) background. We report here that one or both of these serines can be phosphorylated by PKA (protein kinase A). We also report that conversion of these serines to nonphosphorylatable alanine residues enhances cell migration, whereas their conversion to phosphomimetic aspartate residues decreases cell migration. These results indicate that PKA can phosphorylate PDPN to decrease cell migration. In addition, we report that PDPN expression in fibroblasts causes them to facilitate the motility and viability of neighboring melanoma cells in coculture. These findings shed new light on how PDPN promotes cell motility, its role in tumorigenesis, and its utility as a functionally relevant biomarker and chemotherapeutic target.
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Affiliation(s)
- Harini Krishnan
- Graduate School of Biomedical Sciences and Department of Molecular Biology, School of Osteopathic Medicine, University of Medicine and Dentistry of New Jersey, Stratford, New Jersey 08084, USA
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139
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de Vicente JC, Rodrigo JP, Rodriguez-Santamarta T, Lequerica-Fernández P, Allonca E, García-Pedrero JM. Podoplanin expression in oral leukoplakia: tumorigenic role. Oral Oncol 2013; 49:598-603. [PMID: 23473850 DOI: 10.1016/j.oraloncology.2013.02.008] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Revised: 02/06/2013] [Accepted: 02/14/2013] [Indexed: 01/09/2023]
Abstract
OBJECTIVES Recent studies have identified podoplanin, a mucin-type transmembrane glycoprotein, as a biomarker for oral cancer risk in patients with oral leukoplakia (OPL). The aim of this study was to investigate the potential association between podoplanin and the risk of malignant transformation of OPL with epithelial dysplasia. MATERIALS AND METHODS In this retrospective study, podoplanin immunoexpression was analyzed in 58 patients with oral leukoplakia that showed epithelial dysplasia. Lesions with podoplanin expression in the basal and suprabasal layers of oral epithelium at one area or showing suprabasal expression at two or more areas were considered as positive. Association between podoplanin expression and oral cancer development was analyzed. RESULTS Twenty-two of the 58 lesions (38%) were classified as podoplanin-positive, and the remaining 36 (62%) lesions were considered podoplanin-negative. The expression of podoplanin was correlated with the grade of dysplasia (p<0.0005), and with the risk of progression to oral cancer (p<0.0005). In multivariate survival analysis, only premalignant oral lesions displaying positive podoplanin expression showed a significantly increased risk of developing an oral squamous cell carcinoma (hazard ratio=8.738, p=0.007). CONCLUSION Podoplanin could be a valuable biomarker for risk assessment of malignant transformation in patients with OPL along with histological assessment.
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Affiliation(s)
- Juan Carlos de Vicente
- Department of Oral and Maxillofacial Surgery, Facultad de Medicina, Universidad de Oviedo, Hospital Universitario Central de Asturias, Oviedo, Asturias, Spain.
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140
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Cancer stem cell markers in head and neck squamous cell carcinoma. Stem Cells Int 2013; 2013:319489. [PMID: 23533441 PMCID: PMC3603684 DOI: 10.1155/2013/319489] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Accepted: 01/23/2013] [Indexed: 12/22/2022] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) is one of the world's top ten most common cancers. Current survival rates are poor with only 50% of patients expected to survive five years after diagnosis. The poor survival rate of HNSCC is partly attributable to the tendency for diagnosis at the late stage of the disease. One of the reasons for treatment failure is thought to be related to the presence of a subpopulation of cells within the tumour called cancer stem cells (CSCs). CSCs display stem cell-like characteristics that impart resistance to conventional treatment modalities and promote tumour initiation, progression, and metastasis. Specific markers for this population have been investigated in the hope of developing a deeper understanding of their role in the pathogenesis of HNSCC and elucidating novel therapeutic strategies.
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141
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Sun Q, Zhang J, Cao W, Wang X, Xu Q, Yan M, Wu X, Chen W. Dysregulated miR-363 affects head and neck cancer invasion and metastasis by targeting podoplanin. Int J Biochem Cell Biol 2013; 45:513-20. [PMID: 23246488 DOI: 10.1016/j.biocel.2012.12.004] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Revised: 11/28/2012] [Accepted: 12/03/2012] [Indexed: 02/08/2023]
Abstract
Head and neck squamous cell carcinoma (HNSCC) is characterised by an elevated capacity for tumour invasion and lymph node metastasis and the cause remains to be determined. Recent studies suggest that microRNAs can regulate the evolution of malignant behaviours by regulating multiple target genes. In this study, we have first confirmed that miR-363 is down-regulated in HNSCC tissues with lymph node metastasis and cell lines with highly invasive capacity. We used bioinformatics, cellular and molecular methods to predict and prove that miR-363 directly targeted to podoplanin (PDPN) and caused up-regulation of PDPN in HNSCC. MSP assay showed that DNA promoter methylation was involved in silencing the miR-363 in HNSCC. Furthermore, we provided evidence to demonstrate that PDPN dysregulation caused by down-regulation of miR-363 contributes to HNSCC invasion and metastasis. These data reveal a key role of miR-363-PDPN in HNSCC metastasis and support biological and clinical links between miR-363-PDPN and HNSCC.
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Affiliation(s)
- Qiang Sun
- Department of Oral and Maxillofacial-Head & Neck Oncology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
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YAMAKI EI, YAJIMA TOSHIKI, KOSAKA TAKAYUKI, MOGI AKIRA, TANAKA SHIGEBUMI, KUWANO HIROYUKI. Podoplanin overexpression in human mesothelioma cell lines enhances the tumorigenic phenotype. Oncol Rep 2013; 29:932-40. [DOI: 10.3892/or.2013.2225] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Accepted: 11/19/2012] [Indexed: 11/06/2022] Open
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143
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Maniti O, Carvalho K, Picart C. Model membranes to shed light on the biochemical and physical properties of ezrin/radixin/moesin. Biochimie 2013; 95:3-11. [PMID: 23041444 PMCID: PMC4112940 DOI: 10.1016/j.biochi.2012.09.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Accepted: 09/28/2012] [Indexed: 10/27/2022]
Abstract
Ezrin, radixin and moesin (ERM) proteins are now more and more recognized to play a key role in a large number of important physiological processes such as morphogenesis, cancer metastasis and virus infection. Several recent reviews extensively discuss their biological functions [1 -4 ]. In this review, we will first remind the main features of this family of proteins, which are now known as linkers and regulators of the plasma membrane/cytoskeleton linkage. We will then briefly review their implication in pathological processes such as cancer and viral infection. In a second part, we will focus on biochemical and biophysical approaches to study ERM interaction with lipid membranes and conformational change in well-defined environments. In vitro studies using biomimetic lipid membranes, especially large unilamellar vesicles (LUVs), giant unilamellar vesicles (GUVs) and supported lipid bilayers (SLBs) and recombinant proteins help to understand the molecular mechanism of conformational activation of ERM proteins. These tools are aimed to decorticate the different steps of the interaction, to simplify the experiments performed in vivo in much more complex biological environments.
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Affiliation(s)
- Ofélia Maniti
- CNRS UMR 5628 (LMGP), Grenoble Institute of Technology and CNRS, 3 parvis Louis Néel, F-38016 Grenoble Cedex, France
- Institut de Chimie et de Biochimie Moléculaires et Supramoléculaires, UMR 5246, CNRS, Université de Lyon, Université Lyon 1, INSA-Lyon, CPE-Lyon, 43 Bd du 11 Novembre 1918, F-69622 Villeurbanne, France
| | - Kevin Carvalho
- Institut Curie, centre de recherche and CNRS UMR 168, 11 rue Pierre et Marie Curie, Paris, F-75248 cedex 5
| | - Catherine Picart
- CNRS UMR 5628 (LMGP), Grenoble Institute of Technology and CNRS, 3 parvis Louis Néel, F-38016 Grenoble Cedex, France
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Lowe KL, Navarro-Nunez L, Watson SP. Platelet CLEC-2 and podoplanin in cancer metastasis. Thromb Res 2012; 129 Suppl 1:S30-7. [PMID: 22682130 DOI: 10.1016/s0049-3848(12)70013-0] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
It has long been recognised that the function of platelets in health and disease span far beyond their roles in haemostasis and thrombosis. The observation that tumour cells induce platelet aggregation was followed by extensive experimental evidence linking platelets to cancer progression. Aggregated platelets coat tumour cells during their transit through the bloodstream and mediate adherence to vascular endothelium, protection from shear stresses, evasion from immune molecules, and release of an array of bioactive molecules that facilitate tumour cell extravasation and growth at metastatic sites. The sialyated membrane glycoprotein podoplanin is found on the leading edge of tumour cells and is thought to influence their migratory and invasive properties. Podoplanin elicits powerful platelet aggregation and is the endogenous ligand for the platelet C-type lectin receptor, CLEC-2, which itself regulates podoplanin signalling. Here, the bidirectional relationship between CLEC-2 and podoplanin is described and considered in the context of tumour growth and metastasis.
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Affiliation(s)
- Kate L Lowe
- Centre for Cardiovascular Sciences, Institute for Biomedical Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, B15 2TT, UK.
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145
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Astarita JL, Acton SE, Turley SJ. Podoplanin: emerging functions in development, the immune system, and cancer. Front Immunol 2012; 3:283. [PMID: 22988448 PMCID: PMC3439854 DOI: 10.3389/fimmu.2012.00283] [Citation(s) in RCA: 251] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Accepted: 08/22/2012] [Indexed: 12/16/2022] Open
Abstract
Podoplanin (PDPN) is a well-conserved, mucin-type transmembrane protein expressed in multiple tissues during ontogeny and in adult animals, including the brain, heart, kidney, lungs, osteoblasts, and lymphoid organs. Studies of PDPN-deficient mice have demonstrated that this molecule plays a critical role in development of the heart, lungs, and lymphatic system. PDPN is widely used as a marker for lymphatic endothelial cells and fibroblastic reticular cells of lymphoid organs and for lymphatics in the skin and tumor microenvironment. Much of the mechanistic insight into PDPN biology has been gleaned from studies of tumor cells; tumor cells often upregulate PDPN as they undergo epithelial-mesenchymal transition and this upregulation is correlated with increased motility and metastasis. The physiological role of PDPN that has been most studied is its ability to aggregate and activate CLEC-2-expressing platelets, as PDPN is the only known endogenous ligand for CLEC-2. However, more recent studies have revealed that PDPN also plays crucial roles in the biology of immune cells, including T cells and dendritic cells. This review will provide a comprehensive overview of the diverse roles of PDPN in development, immunology, and cancer.
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Affiliation(s)
- Jillian L Astarita
- Department of Cancer Immunology and AIDS, Dana Farber Cancer Institute Boston, MA, USA ; Division of Medical Sciences, Harvard Medical School Boston, MA, USA
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146
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Kaji C, Tsujimoto Y, Kato Kaneko M, Kato Y, Sawa Y. Immunohistochemical Examination of Novel Rat Monoclonal Antibodies against Mouse and Human Podoplanin. Acta Histochem Cytochem 2012; 45:227-37. [PMID: 23012488 PMCID: PMC3445762 DOI: 10.1267/ahc.12008] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Accepted: 06/14/2012] [Indexed: 01/06/2023] Open
Abstract
This study aims to develop new monoclonal antibodies (mAbs) against mouse and human podoplanin. Rats were immunized with synthetic peptides, corresponding to amino acids 38–51 of mouse podoplanin or human podoplanin which is 100% homologous to the same site of monkey podoplanin; anti-mouse podoplanin mAb PMab-1 (IgG2a) and anti-human mAb NZ-1.2 (IgG2a) were established. In immunocytochemistry, the mouse melanoma B16-F10 and mouse podoplanin (mPDPN)-expressed CHO transfectant were stained by PMab-1; human lymphatic endothelial cells (LEC) and human podoplanin (hPDPN)-expressed squamous cell carcinoma HSC3 transfectant, were stained by NZ-1.2. Western-blot analysis detected an about 40-kDa protein in CHO-mPDPN and B16-F10 by PMab-1, and in HSC3-hPDPN and LEC by NZ-1.2. In frozen sections, PMab-1 reacted with mouse kidney, pulmonary alveoli, pulmonary pleura, and salivary gland myoepithelial cells while NZ-1.2 reacted to the human salivary gland myoepithelial cells. The immunostaining of paraffin-embedded sections also showed the reaction of PMab-1 or NZ-1.2 to the mouse or monkey kidney glomerulus, pulmonary alveoli, and lung lymphatic vessels. These results indicate that the two novel rat mAbs to the mouse and human/monkey podoplanin are useful for Western-blot and immunostaining of somatic tissues on paraffin-embedded sections as well as frozen sections.
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Affiliation(s)
- Chiaki Kaji
- Department of Morphological Biology, Fukuoka Dental College
- Department of Morphological Biology, Fukuoka Dental College
| | - Yuta Tsujimoto
- Molecular Tumor Marker Research Team, Yamagata University Global COE Program, Yamagata University Faculty of Medicine
- Molecular Tumor Marker Research Team, Yamagata University Global COE Program, Yamagata University Faculty of Medicine
| | - Mika Kato Kaneko
- Molecular Tumor Marker Research Team, Yamagata University Global COE Program, Yamagata University Faculty of Medicine
- Molecular Tumor Marker Research Team, Yamagata University Global COE Program, Yamagata University Faculty of Medicine
| | - Yukinari Kato
- Molecular Tumor Marker Research Team, Yamagata University Global COE Program, Yamagata University Faculty of Medicine
- Molecular Tumor Marker Research Team, Yamagata University Global COE Program, Yamagata University Faculty of Medicine
| | - Yoshihiko Sawa
- Department of Morphological Biology, Fukuoka Dental College
- Department of Morphological Biology, Fukuoka Dental College
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147
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Hwang YS, Xianglan Z, Park KK, Chung WY. Functional invadopodia formation through stabilization of the PDPN transcript by IMP-3 and cancer-stromal crosstalk for PDPN expression. Carcinogenesis 2012; 33:2135-46. [PMID: 22859271 DOI: 10.1093/carcin/bgs258] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We previously reported that insulin-like growth factor-II mRNA-binding protein-3 (IMP-3) depletion (IMP-3(Δ)) was shown to inhibit invadopodia formation and extracellular matrix degradation capacity in oral squamous cell carcinoma (OSCC) cells. In this study, we found that IMP-3(Δ) cells significantly downregulated the podoplanin (PDPN) level, which resulted in a loss of extracellular matrix degradation activity, although invadopodia was still thriving. From RNA in situ hybridization using a digoxigenin-labeled 3'UTR recognition probe of PDPN and reporter assay with 3'UTR of the PDPN gene cloned downstream from the luciferase reporter gene, we revealed that IMP-3 depletion was shown to be downregulated, which most probably lowered PDPN gene expression by reducing mRNA stabilization. In a xenograft model, PDPN depletion was the cause of a decrease in tumor volume and regional infiltration into nearby stroma. Taken together, transforming growth factor beta 1 increased PDPN expression, which potentiated cancer invasion through increased invadopodia formation and extracellular matrix degradation in the low invasive OSCC cell line. Reciprocally, interleukin-1 beta secreted by OSCC cells, stimulated transforming growth factor beta 1 secretion from stromal fibroblasts to induce PDPN expression in OSCC cells. In addition, a retrospective investigation of OSCC patients found that IMP-3 and PDPN expression significantly correlated with lymph node metastasis of OSCC patients. Moreover, co-expression of IMP-3 and PDPN were frequently detected both in primary and lymph nodes metastatic OSCC cells using immunohistochemical dual staining. Thus, the IMP-3-PDPN axis may be a sensitive target molecule in anti-invadopodia therapy for the treatment of metastatic cancers.
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Affiliation(s)
- Young Sun Hwang
- Oral Cancer Research Institute, Yonsei University College of Dentistry, Republic of Korea.
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148
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Ochoa-Alvarez JA, Krishnan H, Shen Y, Acharya NK, Han M, McNulty DE, Hasegawa H, Hyodo T, Senga T, Geng JG, Kosciuk M, Shin SS, Goydos JS, Temiakov D, Nagele RG, Goldberg GS. Plant lectin can target receptors containing sialic acid, exemplified by podoplanin, to inhibit transformed cell growth and migration. PLoS One 2012; 7:e41845. [PMID: 22844530 PMCID: PMC3402461 DOI: 10.1371/journal.pone.0041845] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Accepted: 06/29/2012] [Indexed: 12/31/2022] Open
Abstract
Cancer is a leading cause of death of men and women worldwide. Tumor cell motility contributes to metastatic invasion that causes the vast majority of cancer deaths. Extracellular receptors modified by α2,3-sialic acids that promote this motility can serve as ideal chemotherapeutic targets. For example, the extracellular domain of the mucin receptor podoplanin (PDPN) is highly O-glycosylated with α2,3-sialic acid linked to galactose. PDPN is activated by endogenous ligands to induce tumor cell motility and metastasis. Dietary lectins that target proteins containing α2,3-sialic acid inhibit tumor cell growth. However, anti-cancer lectins that have been examined thus far target receptors that have not been identified. We report here that a lectin from the seeds of Maackia amurensis (MASL) with affinity for O-linked carbohydrate chains containing sialic acid targets PDPN to inhibit transformed cell growth and motility at nanomolar concentrations. Interestingly, the biological activity of this lectin survives gastrointestinal proteolysis and enters the cardiovascular system to inhibit melanoma cell growth, migration, and tumorigenesis. These studies demonstrate how lectins may be used to help develop dietary agents that target specific receptors to combat malignant cell growth.
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Affiliation(s)
- Jhon Alberto Ochoa-Alvarez
- Graduate School of Biomedical Sciences, University of Medicine and Dentistry of New Jersey, Stratford, New Jersey, United States of America
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149
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Caetano ADS, Tjioe KC, Faustino SES, Hanemann JAC, Belone ADFF, Soares CT, Oliveira DT. Immunolocalization of podoplanin in benign odontogenic tumours with and without ectomesenchyme. Arch Oral Biol 2012; 58:408-15. [PMID: 22763018 DOI: 10.1016/j.archoralbio.2012.06.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Revised: 05/16/2012] [Accepted: 06/06/2012] [Indexed: 12/12/2022]
Abstract
OBJECTIVES To investigate podoplanin expression in epithelial odontogenic tumours with and without ectomesenchyme and verify the association between its immunoexpression and proliferative activity in keratocystic odontogenic tumours (KCOTS) and orthokeratinized odontogenic cysts (OOCs). DESIGN Eight ameloblastomas, nine adenomatoid odontogenic tumours, twenty KCOTS, five OOC, one calcifying epithelial odontogenic tumour, two ameloblastic fibromas, four ameloblastic fibro-odontomas and five calcifying cystic odontogenic tumours were immunohistochemically analysed with anti-podoplanin antibody. For KCOTS and OOC, the cell proliferation index was determined with Ki-67 immunostaining and compared by Spearman correlation coefficient. RESULTS Podoplanin was expressed in the peripheral odontogenic epithelium of most tumours. Ectomesenchyme was negative, except for odontoblasts. KCOTS exhibited positive podoplanin expression while in OOC it was absent/weak. There was statistically significant correlation (p=0.006) between podoplanin expression and cellular proliferation index of KCOTS and OOC. CONCLUSION Podoplanin seems to be related to the proliferative activity of KCOTS and may have a role in the process of local invasion of odontogenic tumours with and without ectomesenchyme.
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Affiliation(s)
- Adriana dos Santos Caetano
- Department of Stomatology, Area of Pathology, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil
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150
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Ito M, Ishii G, Nagai K, Maeda R, Nakano Y, Ochiai A. Prognostic Impact of Cancer-Associated Stromal Cells in Patients With Stage I Lung Adenocarcinoma. Chest 2012; 142:151-158. [DOI: 10.1378/chest.11-2458] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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