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Scientific Reports May 2024Cervical cancer (CC) ranks as the fourth most common form of cancer affecting women, manifesting in the cervix. CC is caused by the Human papillomavirus (HPV) infection...
Cervical cancer (CC) ranks as the fourth most common form of cancer affecting women, manifesting in the cervix. CC is caused by the Human papillomavirus (HPV) infection and is eradicated by vaccinating women from an early age. However, limited medical facilities present a significant challenge in mid- or low-income countries. It can improve the survivability rate and be successfully treated if the CC is detected at earlier stages. Current technological improvements allow for cost-effective, more sensitive, and rapid screening and treatment measures for CC. DL techniques are widely adopted for the automated detection of CC. DL techniques and architectures are used to detect CC and provide higher detection performance. This study offers the design of Enhanced Cervical Precancerous Lesions Detection and Classification using the Archimedes Optimization Algorithm with Transfer Learning (CPLDC-AOATL) algorithm. The CPLDC-AOATL algorithm aims to diagnose cervical cancer using medical images. At the preliminary stage, the CPLDC-AOATL technique involves a bilateral filtering (BF) technique to eliminate the noise in the input images. Besides, the CPLDC-AOATL technique applies the Inception-ResNetv2 model for the feature extraction process, and the use of AOA chose the hyperparameters. The CPLDC-AOATL technique involves a bidirectional long short-term memory (BiLSTM) model for the cancer detection process. The experimental outcome of the CPLDC-AOATL technique emphasized the superior accuracy outcome of 99.53% over other existing approaches under a benchmark dataset.
Topics: Humans; Female; Uterine Cervical Neoplasms; Algorithms; Precancerous Conditions; Early Detection of Cancer; Machine Learning
PubMed: 38802525
DOI: 10.1038/s41598-024-62773-x -
Journal of Oral and Maxillofacial... 2024[This corrects the article on p. 237 in vol. 24, PMID: 33456231.].
[This corrects the article on p. 237 in vol. 24, PMID: 33456231.].
PubMed: 38800441
DOI: 10.4103/jomfp.jomfp_97_24 -
Journal of Oral and Maxillofacial... 2024Oral squamous cell carcinoma (OSCC) is a prevalent malignancy with significant morbidity and mortality. Identifying potential premalignant lesions is crucial for early...
BACKGROUND
Oral squamous cell carcinoma (OSCC) is a prevalent malignancy with significant morbidity and mortality. Identifying potential premalignant lesions is crucial for early detection and effective management. Lichen planus (LP), a chronic inflammatory disorder has been associated with an increased risk of developing OSCC. This study aimed to assess the diagnostic importance of p16 and p53 expression in identifying LP as a potential premalignant lesion for OSCC.
MATERIALS AND METHODS
A retrospective analysis was conducted on archived tissue samples from patients diagnosed with LP ( = 80) and OSCC ( = 60) between 2017 and 2022. Immunohistochemistry was performed to evaluate p16 and p53 protein expression levels in both LP and OSCC tissues. Clinical data, including patient demographics and lesion characteristics, were collected and correlated with the immunohistochemical findings.
RESULTS AND DISCUSSION
The results revealed a significantly higher prevalence of p16 and p53 expression in LP tissues compared to normal oral mucosa ( < 0.001). Notably, p16 expression was observed in 70% of LP cases, while p53 was detected in 55% of LP cases. Furthermore, a significant association was established between p53 expression and the presence of dysplasia within LP lesions ( = 0.003). This indicates the potential of p53 as a predictive biomarker for malignant transformation in LP. The correlation between p16 and p53 expression levels in LP and OSCC tissues suggests a potential mechanistic link between LP and OSCC development.
CONCLUSION
This study underscores the diagnostic importance of p16 and p53 expression as potential markers for identifying LP as a premalignant lesion in the context of OSCC. The elevated prevalence of these markers in LP tissues suggests a potential role in predicting malignant transformation. The findings contribute to a deeper understanding of the molecular pathways underlying OSCC development from LP and emphasize the need for regular monitoring and early intervention in patients diagnosed with LP. Further prospective studies are warranted to validate these findings and to explore the clinical utility of p16 and p53 as biomarkers for predicting OSCC risk in LP patients.
PubMed: 38800439
DOI: 10.4103/jomfp.jomfp_427_23 -
Plastic and Reconstructive Surgery.... May 2024Nipple adenomas (NAs) are rare benign proliferative tumors presenting as palpable nodules, erosive lesions, or nipple discharge, mimicking other conditions. This...
BACKGROUND
Nipple adenomas (NAs) are rare benign proliferative tumors presenting as palpable nodules, erosive lesions, or nipple discharge, mimicking other conditions. This systematic review categorizes cases into sole NA (ONA) or co-diagnoses with other conditions (CONA) to enhance clinical recognition, diagnosis, and treatment efficacy.
METHODS
Following PRISMA guidelines, a PubMed search was conducted for NA. Inclusion criteria covered original research, excluding reviews or other breast diseases. Bias risk was assessed through a thorough search, authors independently evaluated studies, and data were synthesized using varied measures. Subgroups ONA and CONA were formed. Analyses were conducted in Excel and R, complemented by a qualitative review due to case report predominance. Biases in case reports were transparently addressed.
RESULTS
Of the 86 studies, 387 cases were analyzed, showing 10.34% with co-diagnoses of malignant or premalignant conditions. Mean age was 44, with a female predominance (97%). ONA (347 cases) and CONA (40 cases) subgroups exhibited variations in symptoms, physical findings, and imaging. Treatment modalities included excision (51.39%), biopsy alone (11.1%), and mastectomy (8.6%). Mean follow-up of 56.73 months revealed recurrence (2.87%) and malignancy development (1.79%), notably in CONA cases (33.33%).
CONCLUSIONS
This study provides insights into the broader age range of NA and its associations. Higher co-diagnosis rates were correlated with older age, highlighting the necessity for thorough investigation, with excision as the primary treatment. Follow-up emphasizes the significance of identifying and monitoring CONA cases, which pose a higher malignancy risk. Recurrence is presumed to be linked to proper lesion excision and co-diagnosis.
PubMed: 38798941
DOI: 10.1097/GOX.0000000000005827 -
Research Square May 2024Particulate matter exposure (PM) is a cause of aerodigestive disease globally. The destruction of the World Trade Center (WTC) exposed fifirst responders and inhabitants...
BACKGROUND
Particulate matter exposure (PM) is a cause of aerodigestive disease globally. The destruction of the World Trade Center (WTC) exposed fifirst responders and inhabitants of New York City to WTC-PM and caused obstructive airways disease (OAD), gastroesophageal Refux disease (GERD) and Barrett's Esophagus (BE). GERD not only diminishes health-related quality of life but also gives rise to complications that extend beyond the scope of BE. GERD can incite or exacerbate allergies, sinusitis, bronchitis, and asthma. Disease features of the aerodigestive axis can overlap, often necessitating more invasive diagnostic testing and treatment modalities. This presents a need to develop novel non-invasive biomarkers of GERD, BE, airway hyperreactivity (AHR), treatment efficacy, and severity of symptoms.
METHODS
Our observational case-cohort study will leverage the longitudinally phenotyped Fire Department of New York (FDNY)-WTC exposed cohort to identify . Our study population consists of n = 4,192 individuals from which we have randomly selected a sub-cohort control group (n = 837). We will then recruit subgroups of . AHR only . GERD only . BE . GERD/BE and AHR overlap or . No GERD or AHR, from the sub-cohort control group. We will then phenotype and examine non-invasive biomarkers of these subgroups to identify under-diagnosis and/or treatment efficacy. The findings may further contribute to the development of future biologically plausible therapies, ultimately enhance patient care and quality of life.
DISCUSSION
Although many studies have suggested interdependence between airway and digestive diseases, the causative factors and specific mechanisms remain unclear. The detection of the disease is further complicated by the invasiveness of conventional GERD diagnosis procedures and the limited availability of disease-specific biomarkers. The management of Refux is important, as it directly increases risk of cancer and negatively impacts quality of life. Therefore, it is vital to develop novel noninvasive disease markers that can effectively phenotype, facilitate early diagnosis of premalignant disease and identify potential therapeutic targets to improve patient care.
TRIAL REGISTRATION
ClinicalTrials.gov Identifier: NCT05216133; January 18, 2022.
PubMed: 38798396
DOI: 10.21203/rs.3.rs-4355584/v1 -
STAR Protocols Jun 2024Mosaic analysis with double markers (MADM) mouse models closely mimic the clonal origin of human cancers by generating sporadic, GFP-labeled cancer-initiating cells....
Mosaic analysis with double markers (MADM) mouse models closely mimic the clonal origin of human cancers by generating sporadic, GFP-labeled cancer-initiating cells. Traditional clonal analysis pipelines are labor intensive, hindering throughput and disrupting the 3D architecture. Here, we present a protocol that integrates tissue clearing and light-sheet imaging to analyze pre-malignant clones in whole-mount MADM-labeled tissues. We describe steps for generating mosaic-labeled cancer mouse models, tissue harvesting, fixation, and clearing. We then detail procedures for light-sheet imaging and clonal size analysis. For complete details on the use and execution of this protocol, please refer to Zeng et al..
Topics: Animals; Mice; Disease Models, Animal; Neoplasms; Humans
PubMed: 38796848
DOI: 10.1016/j.xpro.2024.103092 -
Journal of Clinical Medicine May 2024: Data on the incidence and comorbidity of Lichen sclerosus (LS), based on validated nationwide population-based registries, remains scarce. : To explore the incidence...
: Data on the incidence and comorbidity of Lichen sclerosus (LS), based on validated nationwide population-based registries, remains scarce. : To explore the incidence and association of comorbidities with LS in Sweden, emphasizing its potential links to malignancies and autoimmune disorders. : A population-based retrospective open cohort study was conducted using the National Patient Register to identify all individuals diagnosed with LS (ICD-10 code L90.0) from 1 January 2001 to 1 January 2021. The study included 154,424 LS patients and a sex and age matched control group of 463,273 individuals to assess the incidence and odds ratios for various cancers and premalignant conditions. : The incidence of LS in Sweden was 80.9 per 100,000 person per year, with higher incidence in females (114.4) than in males (47.2). LS patients showed an increased odds ratio for vulvar cancer (OR = 8.3; 95% CI = 7.5-9.0), penile cancer (OR = 8.9; 95% CI = 7.3-11.0), prostate cancer (OR = 1.2; 95% CI = 1.1-1.2), testicular cancer (OR = 1.4; 95% CI = 1.1-1.7), bladder cancer (OR = 1.1; 95% CI = 1.1-1.2), breast cancer (OR = 1.4; 95% CI = 1.3-1.4), leukoplakia of the vulva (OR = 253.5; 95% CI = 221.9-289.6), and leukoplakia of the penis (OR = 5.1; 95% CI = 4.9-5.4). : This study underscores the significantly increased association of various cancers and premalignant conditions in LS patients, highlighting the critical need for efficacious treatment and diligent follow-up. The association between LS and autoimmune diseases further necessitates comprehensive investigation to understand the underlying mechanisms and clinical management implications. Future research is essential to confirm these findings and elucidate the role of LS in cancer development.
PubMed: 38792303
DOI: 10.3390/jcm13102761 -
International Journal of Molecular... May 2024Periodontitis is linked to the onset and progression of oral squamous cell carcinoma (OSCC), an epidemiologically frequent and clinically aggressive malignancy. In this... (Review)
Review
Periodontitis is linked to the onset and progression of oral squamous cell carcinoma (OSCC), an epidemiologically frequent and clinically aggressive malignancy. In this context, and , two bacteria that cause periodontitis, are found in OSCC tissues as well as in oral premalignant lesions, where they exert pro-tumorigenic activities. Since the two bacteria are present also in endodontic diseases, playing a role in their pathogenesis, here we analyze the literature searching for information on the impact that endodontic infection by or could have on cellular and molecular events involved in oral carcinogenesis. Results from the reviewed papers indicate that infection by and/or triggers the production of inflammatory cytokines and growth factors in dental pulp cells or periodontal cells, affecting the survival, proliferation, invasion, and differentiation of OSCC cells. In addition, the two bacteria and the cytokines they induce halt the differentiation and stimulate the proliferation and invasion of stem cells populating the dental pulp or the periodontium. Although most of the literature confutes the possibility that bacteria-induced endodontic inflammatory diseases could impact on oral carcinogenesis, the papers we have analyzed and discussed herein recommend further investigations on this topic.
Topics: Humans; Porphyromonas gingivalis; Fusobacterium nucleatum; Mouth Neoplasms; Fusobacterium Infections; Carcinogenesis; Bacteroidaceae Infections; Carcinoma, Squamous Cell; Periodontitis; Animals; Cytokines
PubMed: 38791123
DOI: 10.3390/ijms25105083 -
Genes May 2024Transposable elements (TEs) are characterized by their ability to change their genomic position. Through insertion or recombination leading to deletions and other...
Transposable elements (TEs) are characterized by their ability to change their genomic position. Through insertion or recombination leading to deletions and other chromosomal aberrations, they can cause genetic instability. The extent to which they thereby exert regulatory influence on cellular functions is unclear. To better characterize TEs in processes such as carcinogenesis, we used the well-established Xiphophorus melanoma model. By transcriptome sequencing, we show that an increasing total number in transposons correlates with progression of malignancy in melanoma samples from Xiphophorus interspecific hybrids. Further, by comparing the presence of TEs in the parental genomes of and , we could show that even in closely related species, genomic location and spectrum of TEs are considerably different.
Topics: Animals; DNA Transposable Elements; Cyprinodontiformes; Melanoma; Transcriptome; Gene Expression Regulation, Neoplastic; Precancerous Conditions
PubMed: 38790249
DOI: 10.3390/genes15050620 -
JPMA. the Journal of the Pakistan... May 2024To determine the expression of podoplanin, and to correlate it with histopathological grades in oral epithelial dysplasia and oral squamous cell carcinoma cases.
OBJECTIVE
To determine the expression of podoplanin, and to correlate it with histopathological grades in oral epithelial dysplasia and oral squamous cell carcinoma cases.
METHODS
The retrospective, analytical, cross-sectional study was conducted at the City Laboratory, Peshawar, Pakistan, and comprised specimen block data of histologically diagnosed cases of oral benign lesions, dysplastic lesions and oral squamous cell carcinoma from January 2017 to August 2021. Two sections (4um) were cut from each specimen block for Haematoxylin and Eosin staining and immunohistochemistry. The slides were re-evaluated by two pathologists for confirmation of the diagnosis, and podoplanin marker was applied to cases selected using immunohistochemistry. Data was analysed using SPSS 22.
RESULTS
Of the 80 cases identified, 68(85%) were analysed. There were 20(29.4%) benign cases; 11(55%) females and 9(45%) males with mean age 39.90±16.23 years, 20(29.4%) oral dysplastic cases; 14(70%) males and 6(30%) females with mean age 57.75±12.02 years, and 28(41.2%) oral squamous cell carcinoma cases; 17(61%) males and 11(39%) females with mean age 50.55±14.80 years. Podoplanin expression in oral epithelial dysplasia cases was significant (p=0.028), while it was not significant in the other 2 groups (p>0.05).
CONCLUSIONS
Podoplanin when used along with histopathological evaluation could aid as an adjuvant technique in the diagnosis and grading of oral epithelial dysplasia.
Topics: Humans; Female; Male; Membrane Glycoproteins; Mouth Neoplasms; Middle Aged; Adult; Cross-Sectional Studies; Retrospective Studies; Aged; Carcinoma, Squamous Cell; Precancerous Conditions; Pakistan; Young Adult; Mouth Mucosa; Neoplasm Grading; Biomarkers, Tumor; Immunohistochemistry
PubMed: 38783429
DOI: 10.47391/JPMA.8277