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1.
BMC Oral Health ; 24(1): 729, 2024 Jun 25.
Artículo en Inglés | MEDLINE | ID: mdl-38918827

RESUMEN

BACKGROUND: Despite the better prognosis associated with human papillomavirus (HPV)-positive oropharyngeal squamous cell carcinoma (OPSCC), some patients experience relapse and succumb to the disease; thus, there is a need for biomarkers identifying these patients for intensified treatment. Leucine-rich repeats and immunoglobulin-like domain (LRIG) protein 1 is a negative regulator of receptor tyrosine kinase signaling and a positive prognostic factor in OPSCC. Studies indicate that LRIG1 interacts with the LIM domain 7 protein (LMO7), a stabilizer of adherence junctions. Its role in OPSCC has not been studied before. METHODS: A total of 145 patients diagnosed with OPSCC were enrolled. Immunohistochemical LMO7 expression and staining intensity were evaluated in the tumors and correlated with known clinical and pathological prognostic factors, such as HPV status and LRIG1, CD44, Ki67, and p53 expression. RESULTS: Our results show that high LMO7 expression is associated with significantly longer overall survival (OS) (p = 0.044). LMO7 was a positive prognostic factor for OS in univariate analysis (HR 0.515, 95% CI: 0.267-0.994, p = 0.048) but not in multivariate analysis. The LMO7 expression correlated with LRIG1 expression (p = 0.048), consistent with previous findings. Interestingly, strong LRIG1 staining intensity was an independent negative prognostic factor in the HPV-driven group of tumors (HR 2.847, 95% Cl: 1.036-7.825, p = 0.043). CONCLUSIONS: We show for the first time that high LMO7 expression is a positive prognostic factor in OPSCC, and we propose that LMO7 should be further explored as a biomarker. In contrast to previous reports, LRIG1 expression was shown to be an independent negative prognostic factor in HPV-driven OPSCC.


Asunto(s)
Biomarcadores de Tumor , Carcinoma de Células Escamosas , Proteínas con Dominio LIM , Neoplasias Orofaríngeas , Humanos , Neoplasias Orofaríngeas/virología , Neoplasias Orofaríngeas/metabolismo , Neoplasias Orofaríngeas/patología , Neoplasias Orofaríngeas/mortalidad , Masculino , Femenino , Persona de Mediana Edad , Pronóstico , Proteínas con Dominio LIM/metabolismo , Biomarcadores de Tumor/metabolismo , Biomarcadores de Tumor/análisis , Carcinoma de Células Escamosas/metabolismo , Carcinoma de Células Escamosas/patología , Carcinoma de Células Escamosas/virología , Anciano , Factores de Transcripción/metabolismo , Glicoproteínas de Membrana/metabolismo , Adulto , Antígeno Ki-67/metabolismo , Receptores de Hialuranos/metabolismo , Receptores de Hialuranos/análisis , Proteína p53 Supresora de Tumor/metabolismo , Infecciones por Papillomavirus/complicaciones , Inmunohistoquímica , Anciano de 80 o más Años , Tasa de Supervivencia
2.
Acta Oncol ; 61(11): 1425-1433, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-36326616

RESUMEN

BACKGROUND: Ovarian carcinoma is the eighth most common cause of cancer death in women worldwide. The disease is predominantly diagnosed at a late stage. This contributes to high recurrence rates, eventually leading to the development of treatment-resistant disease. Leucine-rich repeats and immunoglobulin-like domains protein 1 (LRIG1) is a transmembrane protein that functions as a tumor suppressor and regulator of growth factor signaling. LRIG1 levels have not been investigated in human plasma previously. MATERIALS AND METHODS: A quantitative LRIG1-specific single molecule array assay was developed and validated. LRIG1 levels were quantified in plasma samples from 486 patients with suspicious ovarian masses. RESULTS: Among women with ovarian carcinoma, LRIG1 levels were significantly elevated compared to women with benign or borderline type tumors. High LRIG1 plasma levels were associated with worse overall survival and shorter disease-free survival both in the group of all malignant cases and among the stage 3 cases only. LRIG1 was an independent prognostic factor in patients with stage 3 ovarian carcinoma. CONCLUSION: LRIG1 plasma levels were elevated in patients with ovarian carcinoma, and high levels were associated with poor prognosis, suggesting that LRIG1 might be an etiologic factor and a potentially useful biomarker in ovarian carcinoma.


Asunto(s)
Carcinoma , Glicoproteínas de Membrana , Neoplasias Ováricas , Femenino , Humanos , Glicoproteínas de Membrana/sangre , Neoplasias Ováricas/diagnóstico , Pronóstico
3.
Int J Gynecol Cancer ; 2022 May 13.
Artículo en Inglés | MEDLINE | ID: mdl-35568382

RESUMEN

OBJECTIVE: Both the location of primary disease and treatment side effects may have an impact on sexual function in oncogynecological patients. The aim of this study was to examine the prevalence, strategies, difficulties, and ideas for improvement in sexual counseling among specialists managing patients with gynecologic malignancies. METHODS: This was a cross-sectional survey study performed among healthcare professionals treating patients with gynecologic malignancies. A self-prepared questionnaire included 61 questions concerning general demographic information and different aspects of sexual counseling in the gynecologic oncology practice. Analysis included attitudes, behaviors, management strategies, difficulties, and ideas for possible systemic improvements. Statistical analysis involved descriptive statistics, two-sided chi-square test, and Fisher's exact test. RESULTS: A total of 150 respondents from 46 countries answered the survey. The majority of survey participants stated that sexual counseling of oncological patients is very important (n=73, 49%) or important (n=46, 31%). One hundred and two (68%) respondents agreed that sexual counseling of gynecologic oncology patients should be routinely provided by the specialist managing the primary disease. However, collecting information concerning sexual function is performed often or always by only 21% of respondents and 19% discuss the topic rarely or never. The most frequently indicated barriers leading to difficulties in sexual counseling include lack of time (74%), lack of specialist knowledge (55%), and patient embarrassment (48%). One hundred and seven (71%) respondents expressed interest in participating in sexual counseling workshops organized by the European Society of Gynaecological Oncology (ESGO)/European Network of Young Gynaecological Oncologists (ENYGO), 74 (49%) would like to access webinars on the topic, and 120 (80%) would be interested in materials in the ESGO online educational resources. CONCLUSION: One of the proposed solutions to insufficient access to sexual care for women with gynecologic malignancies is providing access to specialist educational programs for both patients and healthcare specialists.

4.
Int J Cancer ; 149(1): 66-74, 2021 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-33634882

RESUMEN

To explore the largely unknown etiology of small intestine cancer, we examined metabolic factors and risk of small intestine cancer overall and by subtypes. Among 404 220 women and 403 265 men in six European cohorts, we applied Cox regression with adjustment for smoking and body mass index (BMI), to calculate sex-specific hazard ratios (HRs) of small intestine cancer by levels of BMI, mean arterial pressure (MAP) and plasma total cholesterol, triglycerides and glucose. We also calculated HRs for these factors combined (metabolic score; MetS) and used Wald test statistics to investigate pairwise interactions between metabolic factors on risk. We also performed analyses separately per subtype (neuroendocrine tumors [NETs] and adenocarcinomas). During a median follow-up of 16.9 years, 144 women and 195 men were diagnosed with small intestine cancer, including 184 NETs and 99 adenocarcinomas. Among men, no main associations or interactions between metabolic factors were observed in relation to the risk of small intestine cancer. Among women, triglycerides were positively and linearly associated with risk (HR per standard deviation [SD]: 1.23, 95% confidence interval [CI]: 1.04-1.46), and a positive association was also observed for the MetS (HR per SD: 1.25, 95% CI: 1.02-1.52). Positive interactions were observed among women between triglycerides and cholesterol (P = .0005), and between MAP and glucose (P = .009), on risk. Glucose was positively associated with adenocarcinomas among women. This large, prospective study suggests that elevated triglycerides, and metabolic factors in interaction, confer an increased risk of small intestine cancer among women, but not among men.


Asunto(s)
Adenocarcinoma/patología , Biomarcadores/análisis , Neoplasias Intestinales/patología , Intestino Delgado/patología , Síndrome Metabólico/complicaciones , Adenocarcinoma/epidemiología , Adenocarcinoma/etiología , Adulto , Presión Sanguínea , Índice de Masa Corporal , Europa (Continente)/epidemiología , Femenino , Estudios de Seguimiento , Humanos , Neoplasias Intestinales/epidemiología , Neoplasias Intestinales/etiología , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Prospectivos , Factores de Riesgo
5.
Acta Oncol ; 60(9): 1218-1224, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-34156893

RESUMEN

INTRODUCTION: Endometrioid endometrial carcinoma is a cancer type with generally excellent prognosis when diagnosed at an early stage, but there is a subset of patients with relapsing disease in spite of early diagnosis and surgical treatment. There is a need to find prognostic markers to identify these patients with increased risk of relapse. Depth of myometrial invasion, histological grade, and presence of lymphovascular invasion are known risk factors. DNA content (ploidy) and proliferation measured as S-phase fraction (SPF) have been discussed as prognostic markers but need additional evaluation. MATERIAL AND METHODS: We evaluated relapse-free survival (RFS) with respect to ploidy and SPF, which was analyzed by flow cytometry on fresh tumor tissue, in a cohort of 1001 women treated for stage I endometrioid endometrial carcinoma in northern Sweden during the period of 1993-2010, with a median follow up time of 12.0 years. Data were obtained from historical records. RESULTS: In simple analysis, both aneuploidy and high SPF were associated to increased risk of relapse with hazard ratios (HR) 2.37 (95% CI 1.52-3.70) and 1.94 (95% CI 1.24-3.02), respectively. Our data also confirmed stage, tumor grade, and ploidy as independent prognostic markers in an age adjusted cox regression multivariable analysis but we did not find SPF to contribute to prognosis. However, the combination of aneuploidy and high SPF identified a group of patients with increased risk of relapse, HR 2.02 (95% CI 1.19-3.44). CONCLUSION: In this study, which is the largest study of ploidy and SPF in stage I endometrioid endometrial carcinoma using fresh frozen tissue, aneuploidy was shown to be an independent prognostic marker. Furthermore, the combination of aneuploidy and high SPF could be used to identify patients with increased risk of relapse.


Asunto(s)
ADN de Neoplasias , Neoplasias Endometriales , Aneuploidia , Neoplasias Endometriales/genética , Femenino , Citometría de Flujo , Humanos , Recurrencia Local de Neoplasia/genética , Pronóstico , Fase S
6.
Mol Cell Proteomics ; 18(4): 735-743, 2019 04.
Artículo en Inglés | MEDLINE | ID: mdl-30692274

RESUMEN

Human papillomavirus (HPV) is recommended as the primary test in cervical cancer screening, with co-testing by cytology for HPV-positive women to identify cervical lesions. Cytology has low sensitivity and there is a need to identify biomarkers that could identify dysplasia that are likely to progress to cancer. We searched for plasma proteins that could identify women with cervical cancer using the multiplex proximity extension assay (PEA). The abundance of 100 proteins were measured in plasma collected at the time of diagnosis of patients with invasive cervical cancer and in population controls using the Olink Multiplex panels CVD II, INF I, and ONC II. Eighty proteins showed increased levels in cases compared with controls. We identified a signature of 11 proteins (PTX3, ITGB1BP2, AXIN1, STAMPB, SRC, SIRT2, 4E-BP1, PAPPA, HB-EGF, NEMO and IL27) that distinguished cases and controls with a sensitivity of 0.96 at a specificity of 1.0. This signature was evaluated in a prospective replication cohort with samples collected before, at or after diagnosis and achieved a sensitivity of 0.78 and a specificity 0.56 separating samples collected at the time of diagnosis of invasive cancer from samples collected prior to diagnosis. No difference in abundance was seen between samples collected prior to diagnosis or after treatment as compared with population controls, indicating that this protein signature is mainly informative close to time of diagnosis. Further studies are needed to determine the optimal window in time prior to diagnosis for these biomarker candidates.


Asunto(s)
Bioensayo/métodos , Biomarcadores de Tumor/sangre , Proteínas Sanguíneas/metabolismo , Neoplasias del Cuello Uterino/sangre , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Variación Genética , Humanos , Persona de Mediana Edad , Análisis Multivariante , Curva ROC , Neoplasias del Cuello Uterino/diagnóstico , Neoplasias del Cuello Uterino/terapia , Adulto Joven
7.
Carcinogenesis ; 40(2): 269-278, 2019 04 29.
Artículo en Inglés | MEDLINE | ID: mdl-30596972

RESUMEN

Invasive cervical cancer (ICC) with very low titer of high-risk human papillomavirus (HPV) has worse clinical outcome than cases with high titer, indicating a difference in molecular etiology. Fresh-frozen ICC tumors (n = 49) were classified into high- and low-HPV-titer cases using real-time PCR-based HPV genotyping. The mutation spectra were studied using the AmpliSeq Comprehensive Cancer Panel and the expression profiles using total RNA sequencing, and the results were validated using the AmpliSeq Transcriptome assay. HPV DNA genotyping and RNA sequencing showed that 16.6% of ICC tumors contained very low levels of HPV DNA and HPV transcripts. Tumors with low HPV levels had more mutations with a high allele frequency and fewer mutations with low allele frequency relative to tumors with high HPV titer. A number of genes showed significant expression differences between HPV titer groups, including genes with somatic mutations. Gene ontology and pathway analyses implicated the enrichment of genes involved in DNA replication, cell cycle control and extracellular matrix in tumors with low HPV titer. The results indicate that in low titer tumors, HPVs act as trigger of cancer development whereas somatic mutations are clonally selected and become drivers of the tumor development process. In contrast, in tumors with high HPV titer the expression of HPV oncoproteins plays a major role in tumor development and the many low frequency somatic mutations represent passengers. This putative subdivision of invasive cervical tumors may explain the higher radiosensitivity of ICC tumors with high HPV titer and thereby have consequences for clinical management.


Asunto(s)
Infecciones por Papillomavirus/complicaciones , Infecciones por Papillomavirus/virología , Neoplasias del Cuello Uterino/etiología , Neoplasias del Cuello Uterino/virología , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma de Células Escamosas/etiología , Carcinoma de Células Escamosas/virología , ADN Viral/genética , Femenino , Humanos , Persona de Mediana Edad , Mutación/genética , Papillomaviridae/genética , Análisis de Secuencia de ARN/métodos
8.
Int J Gynecol Cancer ; 27(3): 620-626, 2017 03.
Artículo en Inglés | MEDLINE | ID: mdl-28187096

RESUMEN

OBJECTIVE: The aim of the study was to assess patterns in the use of social media (SM) platforms and to identify the training needs among European gynecologic oncology trainees. METHODS: In 2014, a web-based survey was sent to 633 trainees from the European Network of Young Gynaecological Oncologists (ENYGO) database. The 14-item questionnaire (partially using a 1- to 5-point Likert scale) assessed respondents' use of SM and preference for workshop content and organization. Descriptive analysis was used to describe the mean scores reported for different items, and the internal reliability of the questionnaire was assessed by Cronbach α. RESULTS: In total, 170 ENYGO members (27%) responded to the survey. Of those, 91% said that they use SM platforms, mostly for private purposes. Twenty-three percent used SM professionally and 43% indicated that they would consider SM to be a clinical discussion forum. The respondents said that they would like updates on conferences and professional activities to be shared on SM platforms. Complication management, surgical anatomy, and state of the art in gynecologic oncology were identified as preferred workshops topics. The most frequently indicated hands-on workshops were laparoscopic techniques and surgical anatomy. Consultants attached a higher level of importance to palliative care education and communication training than trainees. The mean duration of the workshop preferred was 2 days. CONCLUSIONS: This report highlights the significance of ENYGO trainees' attachment to SM platforms. Most respondents expect ENYGO to use these online channels for promoting educational activities and other updates. Using SM for clinical discussion will require specific guidelines to secure professional and also consumer integrity. This survey confirms surgical management and the state of the art as important knowledge gaps, and ENYGO has tailored its activities according to these results. Future activities will further direct attention and resources to education in palliative care and molecular tumor biology.


Asunto(s)
Comunicación , Ginecología/educación , Oncología Médica/educación , Medios de Comunicación Sociales , Adulto , Educación Médica Continua/métodos , Femenino , Humanos , Encuestas y Cuestionarios
10.
Acta Oncol ; 54(8): 1113-9, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25813475

RESUMEN

BACKGROUND: The leucine-rich repeats and immunoglobulin-like domains (LRIG) family of transmembrane proteins are involved in the regulation of cellular signal transduction. LRIG1 is an endogenous inhibitor of receptor tyrosine kinases (RTKs) and an emerging tumor suppressor. In the lung epithelium, the expression of LRIG1 is downregulated by tobacco smoking, and further downregulated in lung squamous cell carcinoma. MATERIAL AND METHODS: The expression of LRIG proteins were analyzed in 347 cases of non-small cell lung cancer (NSCLC) by immunohistochemistry, and LRIG1 mRNA expression was evaluated in 807 lung cancer samples in silico in the Oncomine database. Potential associations between the expression data and the clinical parameters, including patient survival, were investigated. RESULTS: Expression of the LRIG1 protein was found to be an independent prognostic factor in NSCLC, whereas expression of LRIG2 or LRIG3 did not correlate with patient survival. The levels of LRIG1 mRNA also correlated with the survival of NSCLC patients. CONCLUSION: These findings demonstrate that LRIG1 is an independent prognostic factor in patients with NSCLC that could be important in future decision-making algorithms for adjuvant lung cancer treatment.


Asunto(s)
Biomarcadores de Tumor/análisis , Carcinoma de Pulmón de Células no Pequeñas/patología , Neoplasias Pulmonares/patología , Glicoproteínas de Membrana/biosíntesis , Anciano , Carcinoma de Pulmón de Células no Pequeñas/mortalidad , Femenino , Humanos , Inmunohistoquímica , Estimación de Kaplan-Meier , Neoplasias Pulmonares/mortalidad , Masculino , Glicoproteínas de Membrana/análisis , Pronóstico , Análisis de Matrices Tisulares
11.
Int J Cancer ; 135(2): 440-52, 2014 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-24338606

RESUMEN

To evaluate prospectively the association between serological markers of selected infections, including HPV, and risk of developing cervical cancer (CC) and precancer, we performed a nested case-control study within the European Prospective Investigation into Cancer and Nutrition (EPIC) study that included 184 cases of invasive CC (ICC), 425 cases of cervical intraepithelial neoplasia (CIN) grade 3 or carcinoma in situ (CIS), and 1,218 matched control women. At enrollment participants completed lifestyle questionnaires and provided sera. Subjects were followed-up for a median of 9 years. Immunoassays were used to detect serum antibodies to Human Herpes Virus 2 (HHV-2), Chlamydia trachomatis (CT), Chlamydia pneumoniae, L1 proteins of mucosal and cutaneous HPV types, E6/E7 proteins of HPV16/18, as well as to four polyomaviruses. Adjusted odds ratios (OR) [and 95% confidence intervals (CI)] for CIN3/CIS and ICC risk were respectively: 1.6 (1.2-2.0) and 1.8 (1.1-2.7) for L1 seropositivity to any mucosal HPV type, 1.0 (0.4-2.4) and 7.4 (2.8-19.7) for E6 seropositivity to HPV16/18, 1.3 (0.9-1.9) and 2.3 (1.3-4.1) for CT seropositivity, and 1.4 (1.0-2.0) and 1.5 (0.9-2.6) for HHV-2 seropositivity. The highest OR for ICC was observed for HPV16 E6 seropositivity [OR = 10.2 (3.3-31.1)]. Increasing number of sexually transmitted infections (STIs) was associated with increasing risk. Non-STIs were not associated with CC risk. In conclusion, this large prospective study confirms the important role of HPV and a possible contribution of CT and HHV-2 in cervical carcinogenesis. It further identifies HPV16 E6 seropositivity as the strongest marker to predict ICC well before disease development.


Asunto(s)
Enfermedades de Transmisión Sexual/complicaciones , Neoplasias del Cuello Uterino/microbiología , Adulto , Anciano , Biomarcadores de Tumor/sangre , Estudios de Casos y Controles , Infecciones por Chlamydia/sangre , Infecciones por Chlamydia/complicaciones , Infecciones por Chlamydia/epidemiología , Estudios de Cohortes , Femenino , Herpes Genital/sangre , Herpes Genital/complicaciones , Herpes Genital/epidemiología , Humanos , Persona de Mediana Edad , Infecciones por Papillomavirus/sangre , Infecciones por Papillomavirus/complicaciones , Infecciones por Papillomavirus/epidemiología , Estudios Seroepidemiológicos , Enfermedades de Transmisión Sexual/sangre , Enfermedades de Transmisión Sexual/epidemiología , Neoplasias del Cuello Uterino/sangre , Adulto Joven , Displasia del Cuello del Útero/sangre , Displasia del Cuello del Útero/microbiología
12.
Int J Cancer ; 135(2): 453-66, 2014 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-24338632

RESUMEN

A total of 308,036 women were selected from the European Prospective Investigation into Cancer and Nutrition (EPIC) study to evaluate the association between tobacco smoking and the risk of cervical intraepithelial neoplasia of grade 3 (CIN3)/carcinoma in situ (CIS) and invasive cervical cancer (ICC). At baseline, participants completed a questionnaire and provided blood samples. During a mean follow-up time of 9 years, 261 ICC cases and 804 CIN3/CIS cases were reported. In a nested case-control study, the baseline sera from 609 cases and 1,218 matched controls were tested for L1 antibodies against HPV types 11, 16, 18, 31, 33, 35, 45, 52, 58, and antibodies against Chlamydia trachomatis (CT), and Human Herpes Virus 2 (HHV-2). Cervical samples were not available for HPV-DNA analysis in this study. Multivariate analyses were used to estimate associations between smoking and risk of CIN3/CIS and ICC in the cohort and the case-control studies. In the cohort analyses smoking status, duration and intensity showed a two-fold increased risk of CIN3/CIS and ICC, while time since quitting was associated with a two-fold reduced risk. In the nested case-control study, consistent associations were observed after adjustment for HPV, CT and HHV-2 serostatus, in both HPV seronegative and seropositive women. Results from this large prospective study confirm the role of tobacco smoking as an important risk factor for both CIN3/CIS and ICC, even after taking into account HPV exposure as determined by HPV serology. The strong beneficial effect of quitting smoking is an important finding that will further support public health policies for smoking cessation.


Asunto(s)
Fumar/efectos adversos , Displasia del Cuello del Útero/etiología , Neoplasias del Cuello Uterino/etiología , Adulto , Anciano , Estudios de Casos y Controles , Estudios de Cohortes , Femenino , Humanos , Persona de Mediana Edad , Factores de Riesgo , Encuestas y Cuestionarios , Neoplasias del Cuello Uterino/epidemiología , Displasia del Cuello del Útero/epidemiología
13.
Acta Oncol ; 53(9): 1135-42, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-25180912

RESUMEN

BACKGROUND: Optimal treatment decisions for cancer patients require reliable prognostic and predictive information. However, this information is inadequate in many cases. Several recent studies suggest that the leucine-rich repeats and immunoglobulin-like domains (LRIG) genes, transcripts, and proteins have prognostic implications in various cancer types. MATERIAL AND METHODS: Relevant literature was identified on PubMed using the key words lrig1, lrig2, and lrig3. LRIG mRNA expression in cancer versus normal tissues was investigated using the Oncomine database. RESULTS: The three human LRIG genes, LRIG1, LRIG2, and LRIG3, encode single-pass transmembrane proteins. LRIG1 is a negative regulator of growth factor signaling that has been shown to function as a tumor suppressor in vitro and in vivo in mice. The functions of LRIG2 and LRIG3 are less well defined. LRIG gene and protein expression are commonly dysregulated in human cancer. In early stage breast cancer, LRIG1 copy number was recently shown to predict early and late relapse in addition to overall survival; in nasopharyngeal carcinoma, loss of LRIG1 is also associated with poor survival. LRIG gene and protein expression have prognostic value in breast cancer, uterine cervical cancer, head-and-neck cancer, glioma, non-small cell lung cancer, prostate cancer, and cutaneous squamous cell carcinoma. In general, expression of LRIG1 and LRIG3 is associated with good survival, whereas expression of LRIG2 is associated with poor survival. Additionally, LRIG1 regulates cellular sensitivity to anti-cancer drugs, which indicates a possible role as a predictive marker. CONCLUSIONS: LRIG gene statuses and mRNA and protein expression are clinically relevant prognostic indicators in several types of human cancer. We propose that LRIG analyses could become important when making informed and individualized clinical decisions regarding the management of cancer patients.


Asunto(s)
Biomarcadores de Tumor/metabolismo , Glicoproteínas de Membrana/metabolismo , Proteínas de la Membrana/metabolismo , Neoplasias/metabolismo , Animales , Biomarcadores de Tumor/genética , Neoplasias de la Mama/genética , Neoplasias de la Mama/metabolismo , Carcinoma de Pulmón de Células no Pequeñas/genética , Carcinoma de Pulmón de Células no Pequeñas/metabolismo , Carcinoma de Pulmón de Células no Pequeñas/mortalidad , Carcinoma de Células Escamosas/genética , Carcinoma de Células Escamosas/metabolismo , Carcinoma de Células Escamosas/mortalidad , Regulación hacia Abajo , Femenino , Expresión Génica , Genes Supresores de Tumor , Glioma/genética , Glioma/metabolismo , Glioma/mortalidad , Neoplasias de Cabeza y Cuello/genética , Neoplasias de Cabeza y Cuello/metabolismo , Humanos , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/metabolismo , Neoplasias Pulmonares/mortalidad , Masculino , Glicoproteínas de Membrana/genética , Proteínas de la Membrana/genética , Ratones , Neoplasias Nasofaríngeas/genética , Neoplasias Nasofaríngeas/metabolismo , Proteínas de Neoplasias/genética , Proteínas de Neoplasias/metabolismo , Recurrencia Local de Neoplasia , Neoplasias/genética , Neoplasias/mortalidad , Pronóstico , ARN Mensajero/metabolismo , Regulación hacia Arriba , Neoplasias del Cuello Uterino/genética , Neoplasias del Cuello Uterino/metabolismo
14.
Am J Obstet Gynecol ; 206(1): 3-9, 2012 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-21840493

RESUMEN

We evaluated the implementation of a labor and delivery unit team training program that included didactic sessions and simulation training with an active clinical unit. Over an 18-month follow-up time period, our team training program showed improvements in patient outcomes as well as in perceptions of patient safety including the dimensions of teamwork and communication.


Asunto(s)
Parto Obstétrico , Trabajo de Parto , Obstetricia/educación , Resultado del Embarazo , Competencia Clínica , Femenino , Humanos , Grupo de Atención al Paciente , Simulación de Paciente , Embarazo
15.
Mil Med ; 2022 Jul 21.
Artículo en Inglés | MEDLINE | ID: mdl-35861270

RESUMEN

INTRODUCTION: A commercially available snake bite device was pilot tested for novel use as a method of hemostasis and wound repair at a noncompressible site in a live swine model. The device is light, is plastic, uses a hook-and-loop strap attachment, and is easily deployed. The device could offer a method for the field repair of an actively bleeding laceration at a noncompressible site in an austere environment. MATERIALS AND METHODS: This was an interventional, prospective, controlled study in a large animal model. The study was approved by the Rhode Island Hospital Institutional Review Board (IRB) and the Animal Welfare Committee/Institutional Animal Care and Use Committee and the Lifespan Research Conflict of Interest Committee. Each animal acted as its own control. Blood loss was measured and compared between repairs of standardized incisions with and without the device's application. The lacerations were sutured closed. Two proceduralists alternated tasks of wound repair versus blood collection. Blood loss was measured by using gauze sponges to capture the blood during a 30-second free-bleeding period and during the repair itself. Using a one sample t-test (the expected difference in blood loss between the two incision repair methods = 0 if the null hypothesis were true), we calculated the mean difference in the deltas between the repair methods. RESULTS: The mean delta difference was 3.1 g (SE ± 0.97). The t-test demonstrated that there was a significantly greater blood loss during the standard repair method, t(9) = 3.11, P < 0.01 than during the repair with the device in place (see Fig. 2). A statistical power analysis conducted showed that with a sample size of 10 animals, there was sufficient statistical power to detect this significant effect (ß = 0.82, α < 0.05, one-tailed). CONCLUSIONS: There was statistically significantly less blood loss during the repairs with the device's application. This feasibility experiment demonstrates that a commercially available snakebite device may be useful for hemostasis during laceration repair at anatomic sites not amenable to application of tourniquets or compressive dressings. Strengths of the study include the prospective controlled design, including the use of each animal as its own control; alternating proceduralists to account for any variability in suturing efficiency; and the statistical significance of the results despite the small number of subjects. One weakness is that the time required for each repair was not measured. The device's portability and reusability suggest applicability in austere medical environments. Future studies could include timing the repairs, using a skin stapler or wound adhesive instead of sutures, applying a hemostatic agent before the repair, and sequentially applying the device to wounds longer than the device.

16.
Oncol Lett ; 24(5): 393, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-36276497

RESUMEN

Merkel cell carcinoma (MCC) is a rare and highly aggressive neuroendocrine malignancy arising from mechanoreceptors in the basal epidermis. Due to a pronounced risk of spread and a high propensity for recurrence after treatment, immediate treatment is of utmost importance. Lambert-Eaton myasthenic syndrome (LEMS) is a paraneoplastic phenomenon affecting the muscles with autoimmune pathophysiology, and >50% of known cases are associated with an underlying malignancy. In the present report, the case of a 67-year-old man presenting with progressive proximal muscle weakness, autonomic dysfunction and involuntary weight loss is described. Symptoms and detection of voltage-gated calcium channel antibodies were consistent with LEMS. Distant metastases were found in the inguinal and iliac lymph nodes, and these were immunohistochemically confirmed to be of epithelial and neuroendocrine origin, consistent with MCC. Local radiotherapy and chemotherapy improved the symptoms; however, a change of treatment was required due to the side effects of the chemotherapy. Avelumab, an immune checkpoint inhibitor, was therefore introduced, and within a year the patient did not only experience tumor remission but also exhibited marked improvements in muscle strength and mobility. At present, 2 years later, the MCC is still in remission. To the best of our knowledge, the present report is the first to describe MCC with associated LEMS, which was successfully treated with avelumab after previous radiotherapy and chemotherapy, with both improved functional motor recovery and tumor reduction. In conclusion, the present case report demonstrated that the present treatment strategy is a potential treatment option and could thus be considered in similar cases.

17.
Int J Med Educ ; 12: 233-242, 2021 Nov 26.
Artículo en Inglés | MEDLINE | ID: mdl-34842177

RESUMEN

OBJECTIVES: We aimed to explore learning experiences among medical students learning to perform pelvic examinations and to identify factors that facilitate their training. METHODS: A mixed-methods study including a web-based survey and focus group discussions (FGDs) was conducted among medical students who had completed their obstetrics and gynaecology (ObGyn) clerkship. The FGDs were recorded, transcribed and analysed using qualitative content analysis with systematic text condensation. Survey factors were compared using the χ2 test or Fisher's exact test. RESULTS: 160 students (97 female, 61 male, two other) at six universities in Sweden responded to the survey. Two mixed FGDs were conducted. The majority (87%) of the students experienced confidence in performing pelvic examinations, stating that sufficient, repeated training opportunities and support from a clinical tutor were crucial components of the learning experience. Prior to the ObGyn clerkship, negative expectations were more common among male students. The male participants experienced having a disadvantage because of their gender, while female students considered their gender an advantage (p<0.001, N=121, Fisher's Exact Test). The clinical tutor and the use of professional patients (PPs) had a fundamental role in providing learning opportunities by including the student in patient care activities. CONCLUSIONS: The importance of the clinical tutor, as well as the use of PPs, are important factors when planning education in pelvic examinations, and this knowledge could be used when educating other intimate examinations during medical school. In addition, similar investigations on students' experience in training other intimate examinations could be considered.


Asunto(s)
Prácticas Clínicas , Ginecología , Obstetricia , Estudiantes de Medicina , Femenino , Examen Ginecologíco , Ginecología/educación , Humanos , Masculino , Obstetricia/educación , Embarazo
18.
Cancers (Basel) ; 13(6)2021 Mar 17.
Artículo en Inglés | MEDLINE | ID: mdl-33802837

RESUMEN

Endometrial cancer (EC) is the most common gynecologic malignancy in Sweden and it has various prognostic factors. The LRIG family is a group of three integral surface proteins with a similar domain organization. The study aimed to explore LRIG family as prognostic factor proteins in EC. The initial study cohort included 100 women with EC who were treated at the Department of Women's and Children's Health, Karolinska University Hospital Solna, between 2007 and 2012. We assessed the associations between LRIG protein expression and type, grade, and stage of EC, as well as progression-free and overall survival. Immunohistochemistry results revealed that most women in the analytical sample had >50% LRIG1-, LRIG2- and LRIG3-positive cells. A statistically significant association was observed between having a high number of LRIG3-positive cells and superior overall survival (incidence rate ratio = 0.977; 95% confidence interval: 0.958-0.996, p = 0.019). Moreover, positive LRIG3 staining of the cell membrane was associated with reducing in the risk of death (hazard ratio = 0.23; 95% confidence interval: 0.09-0.57). Our results show that LRIG3 expression might be a prognostic factor in EC. The role of LRIG1 and LRIG2 expression remains to be further investigated.

20.
Artículo en Inglés | MEDLINE | ID: mdl-32958506

RESUMEN

INTRODUCTION: Palliative care is an important aspect of gynaecological oncology practice. In order to successfully integrate end-of-life (EOL) care in the disease trajectory, it is crucial to incorporate systematic training in subspecialty programmes in gynaecological oncology. We aimed to evaluate the quality of training in palliative care across gynaecological oncology fellows in Europe and to provide a framework to facilitate learning opportunities. METHODS: A web-based questionnaire was sent to members of the European Network of Young Gynae-Oncologists (ENYGO). The survey consisted of 36 items covering six domains: respondents' characteristics, quality and quantity of teaching, curriculum achievements, observation and feedback, EOL clinical practice and attitudes about palliative care. RESULTS: Of the 703 clinicians enrolled in the study, 142 responded (20.2%). Although the majority worked in university hospitals, only half of them (47%) were in a formal subspecialty programme. The majority of respondents (60%) were trained without a mandatory rotation in palliative care units and considered the quality of EOL care teaching as 'very poor' or 'poor' (57.7%). The majority of respondents (71.6%) did not receive any supervision or feedback at the time of their first consultation on changing the goals of care. CONCLUSION: Our study underlines lack of structured teaching and supervision in palliative care contents among European fellows in gynaecological oncology. Broad education of healthcare providers is a key factor to achieve the integration of palliative care in gynaecological oncology practice. Stakeholders like European Society of Gynaecological Oncology/ENYGO play an important role to facilitate educational activities and training programmes targeting to EOL care.

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