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Boniewska-Bernacka E, Pańczyszyn A, Głąb G, Goc A. Telomere Length, Telomerase Activity, and Vaginal Microbiome in Patients with HPV-Related Precancerous Lesions. Int J Mol Sci 2024; 25:8158. [PMID: 39125728 PMCID: PMC11311766 DOI: 10.3390/ijms25158158] [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: 06/21/2024] [Revised: 07/18/2024] [Accepted: 07/23/2024] [Indexed: 08/12/2024] Open
Abstract
Persistent high-risk human papillomaviruses (HR HPVs) infection leads to the development of squamous intraepithelial lesions in cervical cells that may lead to cancer. The telomere length, telomerase activity, and species composition of the vaginal microbiome may influence the dynamic of changes and the process of carcinogenesis. In the present study, we analyze relative telomere length (RTL), relative hTERT expression (gene for the telomerase component-reverse transcriptase) in cervical smear cells and vaginal microbiomes. Total RNA and DNA were isolated from tissue samples of 109 patients from the following groups: control, carrier, low-grade or high-grade squamous intraepithelial lesion (L SIL and H SIL, respectively), and cancer. The quantitative PCR method was used to measure telomere length and telomerase expression. Vaginal microbiome bacteria were divided into community state types using morphotype criteria. Significant differences between histopathology groups were confirmed for both relative telomere length and relative hTERT expression (p < 0.001 and p = 0.001, respectively). A significant difference in RTL was identified between carriers and H SIL (p adj < 0.001) groups, as well as between carriers and L SIL groups (p adj = 0.048). In both cases, RTL was lower among carriers. The highest relative hTERT expression level was recorded in the H SIL group, and the highest relative hTERT expression level was recorded between carriers and the H SIL group (p adj < 0.001). A correlation between genotype and biocenosis was identified for genotype 16+A (p < 0.001). The results suggest that identification of HPV infection, telomere length assessment, and hTERT expression measurement together may be more predictive than each of these analyses performed separately.
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Affiliation(s)
- Ewa Boniewska-Bernacka
- Department of Biology and Genetics, Institute of Medical Sciences, Faculty of Medicine, University of Opole, Oleska 48, 45-052 Opole, Poland; (A.P.); (A.G.)
| | - Anna Pańczyszyn
- Department of Biology and Genetics, Institute of Medical Sciences, Faculty of Medicine, University of Opole, Oleska 48, 45-052 Opole, Poland; (A.P.); (A.G.)
| | - Grzegorz Głąb
- Department of Pathomorphology, Institute of Medical Sciences, Faculty of Medicine, University of Opole, Oleska 48, 45-052 Opole, Poland;
| | - Anna Goc
- Department of Biology and Genetics, Institute of Medical Sciences, Faculty of Medicine, University of Opole, Oleska 48, 45-052 Opole, Poland; (A.P.); (A.G.)
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Gomatou G, Masaoutis C, Vamvakaris I, Kotteas E, Bouros E, Tzilas V, Bouros D. Differential immunohistochemical expression of hTERT in lung cancer patients with and without idiopathic pulmonary fibrosis. Pulmonology 2024; 30:214-221. [PMID: 35153179 DOI: 10.1016/j.pulmoe.2021.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 12/05/2021] [Accepted: 12/08/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Human telomerase reverse transcriptase (hTERT) is the catalytic subunit of telomerase enzyme, which adds nucleotides to telomeres and counteracts their length shortening. The development of a telomere maintenance mechanism represents a hallmark of cancer. On the other hand, idiopathic pulmonary fibrosis (IPF) is associated with mutations in telomerase genes and shorter telomeres. IPF is frequently complicated with lung cancer. AIM To investigate the expression of hTERT in lung cancer with co-existing IPF and to compare with lung cancer without fibrosis. METHODS Diagnostic lung cancerous biopsies were retrieved from 18 patients with lung cancer and concomitant IPF, as well as 18 age and gender matched controls with lung cancer without pulmonary fibrosis. The expression of hTERT was studied with immunohistochemistry. ImajeJ software was used to quantitate subcellular stain intensity. Immunohistochemical investigation of two senescence-associated markers, p16 and p21, was also performed in all 36 cases. RESULTS Both groups highly expressed hTERT, without significant difference (100% vs 95%, p = 0.521). Evaluation of p16 and p21 immunostaining revealed negative to minimal immunoreactivity in both groups. hTERT localization exhibited higher median nuclear intensity in the group of lung cancer with IPF (0.62 vs 0.45, p = 0.016), while cytoplasmic intensity did not differ significantly (0.17 vs 0.15, p = 0.463). Higher median nuclear intensity was also correlated with small cell lung cancer subtype in the whole study sample (0.69 vs 0.45, p = 0.09). CONCLUSION hTERT is highly expressed in lung cancer with concomitant IPF, but with differential localization compared to lung cancer without IPF, implying differences in pathogenicity and requiring further investigation.
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Affiliation(s)
- G Gomatou
- Interstitial Lung Diseases Unit, 1st Department of Respiratory Medicine, "Sotiria" Hospital for Diseases of the Chest, National and Kapodistrian University of Athens, Athens, Greece; Oncology Unit, Third Department of Medicine, "Sotiria" Hospital for Diseases of the Chest, National and Kapodistrian University of Athens, Athens, Greece.
| | - C Masaoutis
- 1st Department of Pathology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - I Vamvakaris
- Department of Pathology, "Sotiria" Hospital for Diseases of the Chest, Athens, Greece
| | - E Kotteas
- Oncology Unit, Third Department of Medicine, "Sotiria" Hospital for Diseases of the Chest, National and Kapodistrian University of Athens, Athens, Greece
| | - E Bouros
- Interstitial Lung Diseases Unit, 1st Department of Respiratory Medicine, "Sotiria" Hospital for Diseases of the Chest, National and Kapodistrian University of Athens, Athens, Greece
| | - V Tzilas
- Center for Diseases of the Chest, Athens Medical Center, Athens, Greece
| | - D Bouros
- Interstitial Lung Diseases Unit, 1st Department of Respiratory Medicine, "Sotiria" Hospital for Diseases of the Chest, National and Kapodistrian University of Athens, Athens, Greece; Center for Diseases of the Chest, Athens Medical Center, Athens, Greece
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Garrido Castillo LN, Anract J, Delongchamps NB, Huillard O, BenMohamed F, Decina A, Lebret T, Dachez R, Paterlini-Bréchot P. Polyploid Giant Cancer Cells Are Frequently Found in the Urine of Prostate Cancer Patients. Cancers (Basel) 2023; 15:3366. [PMID: 37444476 DOI: 10.3390/cancers15133366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/13/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023] Open
Abstract
Prostate cancer is the third cause of cancer-related deaths in men. Its early and reliable diagnosis is still a public health issue, generating many useless prostate biopsies. Prostate cancer cells detected in urine could be the target of a powerful test but they are considered too rare. By using an approach targeting rare cells, we have analyzed urine from 45 patients with prostate cancer and 43 healthy subjects under 50 y.o. We observed a relevant number of giant cells in patients with cancer. Giant cells, named Polyploid Giant Cancer Cells (PGCC), are thought to be involved in tumorigenesis and treatment resistance. We thus performed immune-morphological studies with cancer-related markers such as α-methylacyl-CoA racemase (AMACR), prostate-specific membrane antigen (PSMA), and telomerase reverse transcriptase (TERT) to understand if the giant cells we found are PGCC or other urinary cells. We found PGCC in the urine of 22 patients, including those with early-stage prostate cancer, and one healthy subject. Although these results are preliminary, they provide, for the first time, clinical evidence that prostate cancers release PGCC into the urine. They are expected to stimulate further studies aimed at understanding the role of urinary PGCC and their possible use as a diagnostic tool and therapeutic target.
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Affiliation(s)
| | - Julien Anract
- National Institute for Health and Medical Research (INSERM), Institut Necker Enfants Malades-INEM, Université Paris Cité, F-75015 Paris, France
- Service d'Urologie, AP-HP, Hôpital Cochin, F-75014 Paris, France
| | - Nicolas Barry Delongchamps
- National Institute for Health and Medical Research (INSERM), Institut Necker Enfants Malades-INEM, Université Paris Cité, F-75015 Paris, France
- Service d'Urologie, AP-HP, Hôpital Cochin, F-75014 Paris, France
| | - Olivier Huillard
- Service de Cancérologie, AP-HP, Hôpital Cochin, F-75014 Paris, France
| | | | | | - Thierry Lebret
- Service d'Onco-Urologie, Hôpital Foch, F-92150 Suresnes, France
| | - Roger Dachez
- Innodiag, Pathology Laboratory, F-92100 Boulogne-Billancourt, France
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Wang Y, Han Y, Jin Y, He Q, Wang Z. The Advances in Epigenetics for Cancer Radiotherapy. Int J Mol Sci 2022; 23:ijms23105654. [PMID: 35628460 PMCID: PMC9145982 DOI: 10.3390/ijms23105654] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/14/2022] [Accepted: 05/16/2022] [Indexed: 02/08/2023] Open
Abstract
Cancer is an important factor threatening human life and health; in recent years, its morbidity and mortality remain high and demosntrate an upward trend. It is of great significance to study its pathogenesis and targeted therapy. As the complex mechanisms of epigenetic modification has been increasingly discovered, they are more closely related to the occurrence and development of cancer. As a reversible response, epigenetic modification is of great significance for the improvement of classical therapeutic measures and the discovery of new therapeutic targets. It has become a research focusto explore the multi-level mechanisms of RNA, DNA, chromatin and proteins. As an important means of cancer treatment, radiotherapy has made great progress in technology, methods, means and targeted sensitization after years of rapid development, and even research on radiotherapy based on epigenetic modification is rampant. A series of epigenetic effects of radiation on DNA methylation, histone modification, chromosome remodeling, RNA modification and non-coding RNA during radiotherapy affects the therapeutic effects and prognosis. Starting from the epigenetic mechanism of tumorigenesis, this paper reviews the latest progress in the mechanism of interaction between epigenetic modification and cancer radiotherapy and briefly introduces the main types, mechanisms and applications of epigenetic modifiers used for radiotherapy sensitization in order to explore a more individual and dynamic approach of cancer treatment based on epigenetic mechanism. This study strives to make a modest contribution to the progress of human disease research.
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Affiliation(s)
| | | | | | - Qiang He
- Correspondence: (Q.H.); (Z.W.); Tel.: +86-431-85619443 (Z.W.)
| | - Zhicheng Wang
- Correspondence: (Q.H.); (Z.W.); Tel.: +86-431-85619443 (Z.W.)
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Martínez-Rodríguez F, Limones-González JE, Mendoza-Almanza B, Esparza-Ibarra EL, Gallegos-Flores PI, Ayala-Luján JL, Godina-González S, Salinas E, Mendoza-Almanza G. Understanding Cervical Cancer through Proteomics. Cells 2021; 10:1854. [PMID: 34440623 PMCID: PMC8391734 DOI: 10.3390/cells10081854] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/05/2021] [Accepted: 07/20/2021] [Indexed: 12/17/2022] Open
Abstract
Cancer is one of the leading public health issues worldwide, and the number of cancer patients increases every day. Particularly, cervical cancer (CC) is still the second leading cause of cancer death in women from developing countries. Thus, it is essential to deepen our knowledge about the molecular pathogenesis of CC and propose new therapeutic targets and new methods to diagnose this disease in its early stages. Differential expression analysis using high-throughput techniques applied to biological samples allows determining the physiological state of normal cells and the changes produced by cancer development. The cluster of differential molecular profiles in the genome, the transcriptome, or the proteome is analyzed in the disease, and it is called the molecular signature of cancer. Proteomic analysis of biological samples of patients with different grades of cervical intraepithelial neoplasia (CIN) and CC has served to elucidate the pathways involved in the development and progression of cancer and identify cervical proteins associated with CC. However, several cervical carcinogenesis mechanisms are still unclear. Detecting pathologies in their earliest stages can significantly improve a patient's survival rate, prognosis, and recurrence. The present review is an update on the proteomic study of CC.
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Affiliation(s)
- Fátima Martínez-Rodríguez
- Microbiology Department, Basic Science Center, Autonomous University of Aguascalientes, Aguascalientes 20100, Mexico;
| | | | - Brenda Mendoza-Almanza
- Academic Unit of Biological Sciences, Autonomous University of Zacatecas, Zacatecas 98068, Mexico; (B.M.-A.); (E.L.E.-I.); (P.I.G.-F.)
| | - Edgar L. Esparza-Ibarra
- Academic Unit of Biological Sciences, Autonomous University of Zacatecas, Zacatecas 98068, Mexico; (B.M.-A.); (E.L.E.-I.); (P.I.G.-F.)
| | - Perla I. Gallegos-Flores
- Academic Unit of Biological Sciences, Autonomous University of Zacatecas, Zacatecas 98068, Mexico; (B.M.-A.); (E.L.E.-I.); (P.I.G.-F.)
| | - Jorge L. Ayala-Luján
- Academic Unit of Chemical Sciences, Autonomous University of Zacatecas, Zacatecas 98160, Mexico; (J.L.A.-L.); (S.G.-G.)
| | - Susana Godina-González
- Academic Unit of Chemical Sciences, Autonomous University of Zacatecas, Zacatecas 98160, Mexico; (J.L.A.-L.); (S.G.-G.)
| | - Eva Salinas
- Microbiology Department, Basic Science Center, Autonomous University of Aguascalientes, Aguascalientes 20100, Mexico;
| | - Gretel Mendoza-Almanza
- Master in Biomedical Sciences, Autonomous University of Zacatecas, Zacatecas 98160, Mexico;
- National Council of Science and Technology, Autonomous University of Zacatecas, Zacatecas 98000, Mexico
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TOP2A/MCM2, p16 INK4a, and cyclin E1 expression in liquid-based cytology: a biomarkers panel for progression risk of cervical premalignant lesions. BMC Cancer 2021; 21:39. [PMID: 33413211 PMCID: PMC7792307 DOI: 10.1186/s12885-020-07740-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 12/15/2020] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND To improve the efficiency of early diagnosis systems for cervical cancer, the use of cellular and viral markers for identifying precancerous lesions with a greater probability to progress to cancer has been proposed. Several cellular proteins and markers of oxidative DNA damage have been suggested as possible biomarkers of cervical carcinogenesis; however, they have not been evaluated together. In this study, we analyzed the expression of the cellular markers p16INK4a, Ki-67, CyclinE1, TOP2A/MCM2, and telomerase, as well as the DNA oxidative damage markers ROS and 8-OHdG. The analyses were performed in liquid-based cervical cytology samples or biopsies with premalignant lesions or cervical cancer diagnosis, with the purpose of selecting a panel of biomarkers that allow the identification of precursor lesions with greater risk of progression to cervical cancer. METHODS We analyzed 1485 liquid-based cytology samples, including 239 non-squamous intraepithelial lesions (NSIL), 901 low-grade squamous intraepithelial lesions (LSIL), 54 high-grade squamous intraepithelial lesions (HSIL), and 291 cervical cancers (CC). The biomarkers were analyzed by immunocytochemistry and Human Papilloma Virus (HPV) genotyping with the INNO-LiPA genotyping Extra kit. RESULTS We found that all tested cellular biomarkers were overexpressed in samples with high risk-HPV infection, and the expression levels increased with the severity of the lesion. TOP2A/MCM2 was the best biomarker for discriminating between LSIL and HSIL, followed by p16INK4a and cyclinE1. Statistical analysis showed that TOP2A/MCM2 provided the largest explanation of HSIL and CC cases (93.8%), followed by p16INK4a (91%), cyclin E1 (91%), Ki-67 (89.3%), and telomerase (88.9%). CONCLUSIONS We propose that the detection of TOP2A/MCM2, p16INK4a and cyclin E1 expression levels is useful as a panel of biomarkers that allow identification of cervical lesions with a higher risk for progression to CC with high sensitivity and precision; this can be done inexpensively, in a single and non-invasive liquid-based cytology sample.
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