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Matuck B, Ferraz da Silva LF, Warner BM, Byrd KM. The need for integrated research autopsies in the era of precision oral medicine. J Am Dent Assoc 2023; 154:194-205. [PMID: 36710158 PMCID: PMC9974796 DOI: 10.1016/j.adaj.2022.11.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/18/2022] [Accepted: 11/20/2022] [Indexed: 01/29/2023]
Abstract
BACKGROUND Autopsy has benefited the practice of medicine for centuries; however, its use to advance the practice of oral health care is relatively limited. In the era of precision oral medicine, the research autopsy is poised to play an important role in understanding oral-systemic health, including infectious disease, autoimmunity, craniofacial genetics, and cancer. TYPES OF STUDIES REVIEWED The authors reviewed relevant articles that used medical and dental research autopsies to summarize the advantages of minimally invasive autopsies of dental, oral, and craniofacial tissues and to outline practices for supporting research autopsies of the oral and craniofacial complex. RESULTS The authors provide a historical summary of research autopsy in dentistry and provide a perspective on the value of autopsies for high-resolution multiomic studies to benefit precision oral medicine. As the promise of high-resolution multiomics is being realized, there is a need to integrate the oral and craniofacial complex into the practice of autopsy in medicine. Furthermore, the collaboration of autopsy centers with researchers will accelerate the understanding of dental, oral, and craniofacial tissues as part of the whole body. CONCLUSIONS Autopsies must integrate oral and craniofacial tissues as part of biobanking procedures. As new technologies allow for high-resolution, multimodal phenotyping of human samples, using optimized sampling procedures will allow for unprecedented understanding of common and rare dental, oral, and craniofacial diseases in the future. PRACTICAL IMPLICATIONS The COVID-19 pandemic highlighted the oral cavity as a site for viral infection and transmission potential; this was only discovered via clinical autopsies. The realization of the integrated autopsy's value in full body health initiatives will benefit patients across the globe.
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Affiliation(s)
- Bruno Matuck
- Department of Pathology, School of Medicine University of São Paulo, São Paulo, Brazil
- Division of Oral and Craniofacial Health Sciences, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | | | - Blake M. Warner
- Salivary Disorders Unit, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland, USA
| | - Kevin Matthew Byrd
- Salivary Disorders Unit, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland, USA
- Division of Oral and Craniofacial Health Sciences, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
- Lab of Oral & Craniofacial Innovation (LOCI), Department of Innovation and Technology Research, ADA Science & Research Institute, Gaithersburg, MD, USA
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He L, Zhou S, Li W, Wang Q, Qi Z, Zhou P, Wang Z, Chen J, Li Y, Lin Z. BPIFA2 as a Novel Early Biomarker to Identify Fatal Radiation Injury After Radiation Exposure. Dose Response 2022; 20:15593258221086478. [PMID: 35431693 PMCID: PMC9006374 DOI: 10.1177/15593258221086478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Accepted: 02/17/2022] [Indexed: 11/22/2022] Open
Abstract
Background Current dosimeters cannot cope with the two tasks of medical rescue in the early stage of nuclear accident, the accurate determination of radiation exposure and the identification of patients with fatal radiation injury. As radiation can cause alterations in serum components, it is feasible to develop biomarkers for radiation injury from serum. This study aims to investigate whether serum BPIFA2 could be used as a potential biomarker of predicting fatal radiation injury in the early stage after nuclear accident. Methods A rabbit anti-mouse BPIFA2 polyclonal antibody was prepared to detect the expression of BPIFA2. C57BL/6J female mice were exposed to total body radiation (TBI) at different dose and Partial body radiation (PBI) at lethal dose to detect the dynamic changes of BPIFA2 in serum at different time points after irradiation by Western blot assay. Results BPIFA2 in mice serum were significantly increased at 1–12 h post-irradiation at .5–10 Gy, and increased again significantly at 3 d after 10 Gy irradiation with associated with mortality closely. It also increased rapidly after PBI and was closely related to injury degree, regardless whether the salivary glands were irradiated. Conclusions The increase of serum BPIFA2 is a novel early biomarker not only for identifying radiation exposure, but also for fatal radiation injury playing a vital role in rational use of medical resources, and greater efficiency of medical treatment to minimize casualties.
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Affiliation(s)
- Lexin He
- College of Life Sciences, North China University of Science and Technology, Tangshan, China
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Shixiang Zhou
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Weihong Li
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Qi Wang
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Zhenhua Qi
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Pingkun Zhou
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Zhidong Wang
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Jing Chen
- College of Life Sciences, North China University of Science and Technology, Tangshan, China
| | - Yaqiong Li
- Department of Radiobiology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Zhongwu Lin
- Science Research Management Department of the Academy of Military Sciences, Beijing, China
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Innocentini LMAR, Silva AA, Carvalho MA, Coletta RD, Corrêa MEP, Bingle L, Bingle CD, Vargas PA, Lopes MA. Salivary BPIFA proteins are altered in patients undergoing hematopoietic cell transplantation. Oral Dis 2021; 28:1279-1288. [PMID: 33682222 DOI: 10.1111/odi.13832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 12/29/2020] [Accepted: 03/04/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the expression of BPIFA proteins in the saliva and salivary glands of hematopoietic cell transplant (HCT) patients. MATERIAL AND METHODS This longitudinal study included patients who had undergone autologous HCT (auto-HCT) and allogeneic HCT (allo-HCT), and unstimulated saliva was collected at three time points, with a fourth collection at oral chronic graft-versus-host disease (cGVHD) onset. BPIFA expression was analysed by Western blotting in saliva and immunostaining in the minor salivary glands of cGVHD patients. RESULTS Auto-HCT patients showed increased levels of BPIFA1 (p = .021) and BPIFA2 at D+7 (p = .040), whereas allo-HCT group demonstrated decreased expression of BPIFA2 at D+8 (p = .002) and at D+80 (p = .001) and a significant association between BPIFA2 low levels and hyposalivation was observed (p = .02). BPIFA2 was significantly lower in the cGVHD patients when compared to baseline (p = .04). CONCLUSIONS The results of this study show distinct pattern of expression of BPIF proteins in both auto-HCT and allo-HCT recipients with decreased levels of BPIFA2 during hyposalivation and cGVHD. Further studies are necessary to elucidate these proteins mechanisms and their clinical implications in these groups of patients.
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Affiliation(s)
- Lara Maria Alencar Ramos Innocentini
- Dentistry and Stomatology Division, Ophthalmology, Otolaryngology and Head and Neck Surgery Department, Clinical Hospital of Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, Brazil
| | - Andreia Aparecida Silva
- Department of Oral Diagnosis, School of Dentistry of Piracicaba, University of Campinas (FOP/UNICAMP), Piracicaba, São Paulo, Brazil
| | - Marco Antonio Carvalho
- Department of Oral Diagnosis, School of Dentistry of Piracicaba, University of Campinas (FOP/UNICAMP), Piracicaba, São Paulo, Brazil
| | - Ricardo D Coletta
- Department of Oral Diagnosis, School of Dentistry of Piracicaba, University of Campinas (FOP/UNICAMP), Piracicaba, São Paulo, Brazil
| | | | - Lynne Bingle
- Department of Oral and Maxillofacial Pathology, School of Clinical Dentistry, The University of Sheffield, Sheffield, UK
| | - Colin D Bingle
- Academic Unit of Respiratory Medicine, Department of Infection and Immunity, University of Sheffield, Sheffield, UK
| | - Pablo Agustin Vargas
- Department of Oral Diagnosis, School of Dentistry of Piracicaba, University of Campinas (FOP/UNICAMP), Piracicaba, São Paulo, Brazil
| | - Márcio Ajudarte Lopes
- Department of Oral Diagnosis, School of Dentistry of Piracicaba, University of Campinas (FOP/UNICAMP), Piracicaba, São Paulo, Brazil
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Nashida T, Yoshimura K, Yoshie S, Mizuhashi F, Shimomura-Kuroki J. Upregulation of Bpifb1 expression in the parotid glands of non-obese diabetic mice. Oral Dis 2016; 22:46-52. [PMID: 26769076 DOI: 10.1111/odi.12377] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 09/14/2015] [Accepted: 09/30/2015] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To define the increased mRNA expression of Bpifb1, a member of the bactericidal/permeability-increasing protein family, in parotid acinar cells from non-obese diabetic (NOD) mice, an animal model for Sjögren's syndrome. MATERIALS AND METHODS Parotid acinar cells were prepared from female NOD (NOD/ShiJcl) mice with or without diabetes, as well as from control (C57BL/6JJcl) mice. Total RNA and homogenate were prepared from the parotid acinar cells. Embryonic cDNA from a Mouse MTC(™) Panel I kit was used. The expression of Bpifb1 was determined by cDNA microarray analysis, RT-PCR, real-time PCR, northern blotting and in situ hybridization. RESULTS The expression of Bpifb1 mRNA was high in parotid acinar cells from diabetic and non-diabetic NOD mice at 5-50 weeks of age. Acinar cells in the C57BL/6 mice had a low expression of Bpifb1 mRNA at an age >8 weeks, but had a relatively high expression in the foetus and infantile stages. CONCLUSIONS Bpifb1 mRNA is upregulated in parotid acinar cells in NOD mice, but its expression is not related to the onset of diabetes. These findings suggest that high expression levels of Bpifb1 might predict disease traits before the onset of autoimmunity.
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Affiliation(s)
- T Nashida
- Departments of Biochemistry, The Nippon Dental University School of Life Dentistry at Niigata, Chuo-ku, Niigata, Japan
| | - K Yoshimura
- Departments of Anatomy, The Nippon Dental University School of Life Dentistry at Niigata, Chuo-ku, Niigata, Japan
| | - S Yoshie
- Departments of Histology, The Nippon Dental University School of Life Dentistry at Niigata, Chuo-ku, Niigata, Japan
| | - F Mizuhashi
- Departments of Removable Prosthodontics, The Nippon Dental University School of Life Dentistry at Niigata, Chuo-ku, Niigata, Japan
| | - J Shimomura-Kuroki
- Departments of Pediatric Dentistry, The Nippon Dental University School of Life Dentistry at Niigata, Chuo-ku, Niigata, Japan
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Salivary BPIFA1 (SPLUNC1) and BPIFA2 (SPLUNC2 A) are modified by head and neck cancer radiotherapy. Oral Surg Oral Med Oral Pathol Oral Radiol 2015; 119:48-58. [DOI: 10.1016/j.oooo.2014.09.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 09/16/2014] [Accepted: 09/22/2014] [Indexed: 12/11/2022]
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González-Arriagada WA, Santos-Silva AR, Ito FA, Vargas PA, Speight PM, Bingle L, Lopes MA. Expression pattern of PLUNC proteins as an auxiliary tool for the diagnosis of high-grade mucoepidermoid carcinoma of the salivary gland. J Oral Pathol Med 2012; 41:589-97. [PMID: 22487508 DOI: 10.1111/j.1600-0714.2012.01145.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Mucoepidermoid carcinomas are the most frequent malignant neoplasia of the salivary glands and are histologically classified as low, intermediate, and high grade. At present, histochemical stains such as periodic acid-Schiff or mucicarmine are useful tools in making a diagnosis. Recently, expression of the PLUNC proteins has been described in mucin-producing salivary gland tumors, with the suggestion that they could provide a powerful tool for the diagnosis of difficult cases. METHODS This study evaluates the expression of PLUNC proteins in 30 cases of salivary gland mucoepidermoid carcinomas. Tumors were reviewed and classified according to histological grade. Periodic acid-Schiff, mucicarmine, and immunohistochemical staining for SPLUNC1, LPLUNC1, SPLUNC2, and LPLUNC2 were carried out. Immunostaining was classified as positive or negative. RESULTS The majority of the tumors (63%) were classified as low grade, 13% were intermediate grade, and 23% were high grade. SPLUNC1 (90%) and LPLUNC1 (93%) were positive in the majority of cases, mainly in mucous cells, mucin plugs, and intermediate cells. SPLUNC2 and LPLUNC2 did not present significative expression within the tumors; however, LPLUNC2 was found to stain positively in mast cells in 83% of the samples. CONCLUSIONS SPLUNC1 and LPLUNC1 showed a similar pattern of expression and could prove useful in the diagnosis of high-grade cases because of the differential staining in intermediate and epidermoid cells. The expression of LPLUNC2 in mast cells has not previously been reported, but further studies are necessary to validate this finding and to determine its significance.
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Affiliation(s)
- Wilfredo A González-Arriagada
- Oral Diagnosis Department, Semiology and Oral Pathology, Piracicaba Dental School, State University of Campinas (UNICAMP), Piracicaba, Sao Paulo, Brazil
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Abstract
Although gene expression studies have shown that human PLUNC (palate, lung and nasal epithelium clone) proteins are predominantly expressed in the upper airways, nose and mouth, and proteomic studies have indicated they are secreted into airway and nasal lining fluids and saliva, there is currently little information concerning the localization of human PLUNC proteins. Our studies have focused on the localization of three members of this protein family, namely SPLUNC1 (short PLUNC1), SPLUNC2 and LPLUNC1 (long PLUNC1). Western blotting has indicated that PLUNC proteins are highly glycosylated, whereas immunohistochemical analysis demonstrated distinct patterns of expression. For example, SPLUNC2 is expressed in serous cells of the major salivary glands and in minor mucosal glands, whereas SPLUNC1 is expressed in the mucous cells of these glands. LPLUNC1 is a product of a population of goblet cells in the airway epithelium and nasal passages and expressed in airway submucosal glands and minor glands of the oral and nasal cavities. SPLUNC1 is also found in the epithelium of the upper airways and nasal passages and in airway submucosal glands, but is not co-expressed with LPLUNC1. We suggest that this differential expression may be reflected in the function of individual PLUNC proteins.
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