PMID- 38126564 OWN - NLM STAT- MEDLINE DCOM- 20231227 LR - 20240114 IS - 1678-7765 (Electronic) IS - 1678-7757 (Print) IS - 1678-7757 (Linking) VI - 31 DP - 2023 TI - Possible role of ALDH1 and CD44 in lip carcinogenesis. PG - e20230227 LID - S1678-77572023000100464 [pii] LID - 10.1590/1678-7757-2023-0227 [doi] LID - e20230227 AB - Lip squamous cell carcinoma (LSCC) accounts for 12% of all head and neck cancers. It is caused by chronic exposure to ultraviolet light solar radiation and related to previous actinic cheilitis (AC). This study aimed to investigate the immunostaining of the putative cancer stem cells (CSC) markers ALDH1 and CD44 in AC (n=30) and LSCC (n=20). ALDH1 positivity was found to be statistically higher in LSCC than in AC lesions (p=0.0045), whilst CD44 expression was statistically higher in AC than in LSCC lesions (p=0.0155). ALDH1+ cells in AC lesions were associated with specific clinical features: a younger age (<60 years old), the female gender, white skin, not smoking or consuming alcohol, and a fast evolution, and not associated with the chronic exposure to UV radiation (p<0.0001). CD44 positivity was associated with patients who were male, feoderm, smoked, consumed alcohol, underwent occupational exposure to UV-radiation, and demonstrated lesions with log-time evolution (p<0.0001). ALDH1 + cells were associated with mild dysplasia using a system from the World Health Organization (WHO), and with a low risk of malignant transformation, according to the binary system (p<0.0001). CD44+ cells were also associated with moderated dysplasia, according to the WHO system. In LSCC, ALDH1 + cells were positively associated with patients who were older (>/= 60 years old), smokers, and with those who consumed alcohol (p<0.0001). CD44 + cells in LSCC were associated with older (>/= 60 years old) patients as well, but also with female patients, white skin, non-smokers, and individuals who did not consume alcohol (p<0.0001), all of whom showed distinct patterns in pre- and malignant lesions of both markers. Additionally, in LSCC, both ALDH1 and CD44 staining were associated with smaller tumor sizes (T1/T2; p<0.0001). In summary, although both ALDH1 and CD44 were associated with the presence of dysplasia in AC lesions, the present findings suggest that ALDH1 and CD44 may be activated by different etiopathogenic pathways, predominantly in distinct steps of oral carcinogenesis. CD44 would thus be more significantly related to the potentially malignant lesion, while ALDH1 would be closely linked to malignancy. FAU - Ortiz, Rafael Carneiro AU - Ortiz RC AUID- ORCID: 0000-0002-2794-0460 AD - Universidade de Sao Paulo , Faculdade de Odontologia de Bauru , Departamento de Ciencias Biologicas , Bauru , SP , Brasil . FAU - Gois, Gabriele Gomes AU - Gois GG AD - Universidade de Sao Paulo , Faculdade de Odontologia de Bauru , Departamento de Ciencias Biologicas , Bauru , SP , Brasil . FAU - Costa, Camila Alves AU - Costa CA AUID- ORCID: 0000-0002-8493-1835 AD - Universidade Federal de Goias , Faculdade de Odontologia da Goiania , Centro de Pesquisa em Saude Bucal Sistemica da Goias , Goiania , GO , Brasil . FAU - Costa, Nadia Lago AU - Costa NL AUID- ORCID: 0000-0003-0198-5828 AD - Universidade Federal de Goias , Faculdade de Odontologia , Departamento de Patologia Bucal, Estomatologia e Radiologia , Goiania , GO , Brasil . FAU - Rodini, Camila Oliveira AU - Rodini CO AUID- ORCID: 0000-0002-8763-4967 AD - Universidade de Sao Paulo , Faculdade de Odontologia de Bauru , Departamento de Ciencias Biologicas , Bauru , SP , Brasil . LA - eng PT - Journal Article DEP - 20231222 PL - Brazil TA - J Appl Oral Sci JT - Journal of applied oral science : revista FOB JID - 101189774 RN - EC 1.2.1 (Aldehyde Dehydrogenase 1 Family) RN - 0 (Biomarkers, Tumor) RN - 0 (CD44 protein, human) RN - 0 (Hyaluronan Receptors) RN - Actinic cheilitis SB - IM MH - Female MH - Humans MH - Male MH - Middle Aged MH - Aldehyde Dehydrogenase 1 Family MH - Biomarkers, Tumor MH - Carcinogenesis MH - Hyaluronan Receptors/metabolism MH - Lip/metabolism/pathology MH - *Lip Neoplasms/etiology/metabolism/pathology MH - *Squamous Cell Carcinoma of Head and Neck/etiology/metabolism/pathology PMC - PMC10786456 COIS- Conflict of Interest The authors declare no conflicts of interest. EDAT- 2023/12/21 12:42 MHDA- 2023/12/22 06:43 PMCR- 2023/12/22 CRDT- 2023/12/21 08:05 PHST- 2023/07/03 00:00 [received] PHST- 2023/11/06 00:00 [accepted] PHST- 2023/12/22 06:43 [medline] PHST- 2023/12/21 12:42 [pubmed] PHST- 2023/12/21 08:05 [entrez] PHST- 2023/12/22 00:00 [pmc-release] AID - S1678-77572023000100464 [pii] AID - 10.1590/1678-7757-2023-0227 [doi] PST - epublish SO - J Appl Oral Sci. 2023 Dec 22;31:e20230227. doi: 10.1590/1678-7757-2023-0227. eCollection 2023.