PMID- 30770986 OWN - NLM STAT- MEDLINE DCOM- 20190709 LR - 20200225 IS - 1432-2307 (Electronic) IS - 0945-6317 (Linking) VI - 474 IP - 6 DP - 2019 Jun TI - The stem cell markers expression CD44v6 and podoplanin in lip cancer: clinical significance. PG - 745-754 LID - 10.1007/s00428-019-02539-3 [doi] AB - This study aimed to analyze the immunoexpression of cancer stem cell markers, CD44v6, and podoplanin in 91 patients with lip squamous cell carcinomas (LSCC). The immunostaining of podoplanin and CD44v6 was evaluated in ten high-power fields (x 400 magnification) at the invasive front of LSCC, using a semi-quantitative score method. Chi-square test or Fisher's exact test was used to verify the association of podoplanin and CD44v6 expressions with clinicopathologic variables. Spearman's correlation test was used to analyze the correlation between the two antibodies in lip cancer. Disease-free survival probabilities in 5 and 10 years were estimated according to the Kaplan-Meier method and compared using the log-rank test. The independent effects of the significant variables were analyzed by Cox proportional hazards regression model. A strong podoplanin expression was observed in the membrane and cytoplasm of most lip tumor cells, and this was inversely associated with locoregional recurrence (p = 0.028) and with histopathological grade of malignancy (p = 0.026). Additionally, CD44v6 immunostaining was strongly expressed in the membrane of tumor cells in 95.4% of the LSCC. Patients with strong membranous (p = 0.016) or strong cytoplasmic (p = 0.030) podoplanin-positive tumors resulted in significantly better disease-free survival than those who had podoplanin weak/negative tumors, confirming podoplanin expression as a favorable independent prognostic factor. Podoplanin and CD44v6 were strongly expressed by tumor cells and podoplanin immunoexpression can help to determine lip cancer patients with lower risk for disease recurrence. FAU - Garcia, Alexandre Simoes AU - Garcia AS AD - Department of Surgery, Stomatology, Pathology and Radiology, Area of Pathology, Bauru School of Dentistry, University of Sao Paulo, Alameda Octavio Pinheiro Brisola, 9-75, Bauru, SP, 17012-901, Brazil. FAU - Assao, Agnes AU - Assao A AD - Department of Surgery, Stomatology, Pathology and Radiology, Area of Pathology, Bauru School of Dentistry, University of Sao Paulo, Alameda Octavio Pinheiro Brisola, 9-75, Bauru, SP, 17012-901, Brazil. FAU - Carvalho, Andre Lopes AU - Carvalho AL AD - Fundacao Pio XII Institution - Cancer Hospital of Barretos, Brazil, R. Antenor Duarte Vilela, 1331, Barretos, SP, 14784-400, Brazil. FAU - Soares, Fernando Augusto AU - Soares FA AD - Rede D'Or Hospitals Network - Pathology Division - Brazil, R. das Perobas, 344, Jabaquara, Sao Paulo, SP, 04321-120, Brazil. FAU - Kowalski, Luiz Paulo AU - Kowalski LP AD - Department of Head and Neck Surgery and Otorhinolaryngology, A.C. Camargo Cancer Hospital, R. Professor Antonio Prudente, 211, Liberdade, Sao Paulo, SP, 01509-010, Brazil. FAU - Oliveira, Denise Tostes AU - Oliveira DT AUID- ORCID: 0000-0002-4628-7129 AD - Department of Surgery, Stomatology, Pathology and Radiology, Area of Pathology, Bauru School of Dentistry, University of Sao Paulo, Alameda Octavio Pinheiro Brisola, 9-75, Bauru, SP, 17012-901, Brazil. denisetostes@usp.br. LA - eng GR - #2012/13411-6/Funda??o de Amparo ? Pesquisa do Estado de S?o Paulo/ GR - 001/Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior/ PT - Journal Article DEP - 20190215 PL - Germany TA - Virchows Arch JT - Virchows Archiv : an international journal of pathology JID - 9423843 RN - 0 (Biomarkers, Tumor) RN - 0 (Hyaluronan Receptors) RN - 0 (Membrane Glycoproteins) RN - 0 (PDPN protein, human) SB - IM MH - Adult MH - Aged MH - Biomarkers, Tumor/metabolism MH - Carcinoma, Squamous Cell/metabolism/pathology MH - Female MH - Humans MH - Hyaluronan Receptors/*metabolism MH - Lip Neoplasms/*metabolism/pathology MH - Male MH - Membrane Glycoproteins/*metabolism MH - Middle Aged MH - Neoplasm Recurrence, Local/metabolism/pathology MH - Stem Cells/*metabolism OTO - NOTNLM OT - Lip OT - Podoplanin OT - Squamous cell carcinoma OT - cd44 antigens EDAT- 2019/02/17 06:00 MHDA- 2019/07/10 06:00 CRDT- 2019/02/17 06:00 PHST- 2018/11/21 00:00 [received] PHST- 2019/02/04 00:00 [accepted] PHST- 2019/01/09 00:00 [revised] PHST- 2019/02/17 06:00 [pubmed] PHST- 2019/07/10 06:00 [medline] PHST- 2019/02/17 06:00 [entrez] AID - 10.1007/s00428-019-02539-3 [pii] AID - 10.1007/s00428-019-02539-3 [doi] PST - ppublish SO - Virchows Arch. 2019 Jun;474(6):745-754. doi: 10.1007/s00428-019-02539-3. Epub 2019 Feb 15.