Evidence map›Paper›PMID 42446749›Full record

ArticleJournal of molecular histology2026

Porcine submandibular glands as potential salivary gland experimental models: histological, immunohistochemical, and ultrastructural characterization.

Helena Ab'Sáber Simões, Cibele Pelissari, Giovanna Florezi, Ricardo Hsieh, Victor Elias Arana-Chavez, Cristina Massoco, Christine Delporte, Alexandre Ab'Saber, Silvia Vanessa Lourenço

Abstract read
In one paragraph

Article in Journal of molecular histology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0cells of the map it votes in
0citing papers in PubMed
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Helena Ab'Sáber SimõesDepartment of Surgery, Faculdade de Medicina, Universidade de São Paulo, Av. Dr. Arnaldo, 455 - São Paulo, São Paulo, SP - 01246-903, Brazil.ORCID http://orcid.org/0000-0003-2653-7845
Cibele PelissariDepartment of Surgery, Faculdade de Medicina, Universidade de São Paulo, Av. Dr. Arnaldo, 455 - São Paulo, São Paulo, SP - 01246-903, Brazil.ORCID http://orcid.org/0000-0003-0067-071X
Giovanna FloreziDepartment of Surgery, Faculdade de Medicina, Universidade de São Paulo, Av. Dr. Arnaldo, 455 - São Paulo, São Paulo, SP - 01246-903, Brazil. giovanna.florezi@usp.br.ORCID http://orcid.org/0000-0002-5328-0937
Ricardo HsiehLIM-06, Faculdade de Medicina, Instituto de Medicina Tropical, Universidade de São Paulo, São Paulo, Brazil.ORCID http://orcid.org/0000-0002-2868-7452
Victor Elias Arana-ChavezDepartment of Biomaterials and Oral Biology, Faculdade de Odontologia, Universidade de São Paulo, São Paulo, Brazil.ORCID http://orcid.org/0000-0002-6767-7812
Cristina MassocoDepartment of Pathology and Toxicology, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, Brazil.ORCID http://orcid.org/0000-0001-8030-0609
Christine DelporteLaboratory of Pathophysiological and Nutritional Biochemistry, Medical School, Université Libre de Bruxelles, Brussels, Belgium.ORCID http://orcid.org/0000-0003-0385-5824
Alexandre Ab'SaberDivision of Anatomical Pathology, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.ORCID http://orcid.org/0000-0002-6371-177X
Silvia Vanessa LourençoDepartment of Surgery, Faculdade de Medicina, Universidade de São Paulo, Av. Dr. Arnaldo, 455 - São Paulo, São Paulo, SP - 01246-903, Brazil.ORCID http://orcid.org/0000-0002-6704-8549

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Salivary glands play an essential role in oral homeostasis by producing saliva, which protects oral tissues and maintains the oral environment. Despite growing interest in porcine models for translational biomedical research, the immunophenotypic characterization of porcine salivary glands remains limited in the literature, with few studies addressing their cytokeratin and contractile protein expression profiles. This gap constrains the ability to directly compare porcine and human glandular phenotypes and hinders the establishment of the pig as a validated salivary gland experimental model. This study evaluates the histological, immunophenotypic, and ultrastructural features of porcine submandibular glands as potential experimental models. Submandibular glands from 11 pigs aged 3 to 6 months (average weight: 20 kg) were examined histologically using hematoxylin and eosin staining and ultrastructurally by transmission electron microscopy, and phenotypically via immunohistochemistry for key markers such as CK5, CK7, CK19, SMA, calponin, caldesmon and S-100. Porcine submandibular glands exhibit a lobular organization akin to human glands, with mucous acinar cells, intercalated and excretory ducts, and rich vascularization. Immunohistochemistry revealed cytokeratins in epithelial cells and contractile proteins in myoepithelial cells, mirroring human glandular markers. Ultrastructural analysis highlighted robust cellular junctions, myoepithelial support, and intricate nerve fiber networks essential for glandular function. The structural and phenotypic parallels between porcine and human submandibular salivary glands provide a descriptive basis supporting their potential use in comparative salivary gland research.

Indexed as

Salivary GlandsSubmandibular GlandAnimalsBiomarkersHumansImmunohistochemistryMicroscopy, Electron, TransmissionModels, AnimalSwineBiomarkersElectronImmunophenotypingMicroscopySalivary glandsSwineTranslational medical researchTransmission

Identifiers

PMID42446749
PMCPMC13369746

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.