Cancer Investigation最新文献

In this study, we analyzed the blood-based TMB (b-TMB) and its dynamic changes in patients with locally advanced non-small cell lung cancer (LA-NSCLC) who received concurrent chemoradiotherapy. Baseline tissue and blood TMB from 15 patients showed a strong positive correlation (Pearson correlation = 0.937), and nearly all mutations were markedly reduced in the later course of treatment, indicating a treatment-related response. This study suggests that in patients with LA-NSCLC, b-TMB is a reliable biomarker, and its dynamic monitoring can help distinguish patients who might benefit most from the consolidated immunotherapy.

The study investigates titanium and zinc nanoparticles as inhibitors for the epidermal growth factor receptor (EGFR) and vascular endothelial growth factor receptor-2 (VEGFR-2), pivotal regulators of cell processes. VEGFR-2 activation fuels tumor angiogenesis in cancer cells, sustaining malignant tissue expansion. Molecular docking analysis illustrates the nanoparticles' binding to the active sites, inhibiting the phosphorylation of key proteins in downstream signaling. This inhibition offers a promising therapeutic approach to impede cancer-related signaling, potentially slowing down aberrant protein cascades controlled by EGFR and VEGFR-2. The findings propose a novel avenue for cancer treatment, targeting abnormal growth pathways using titanium and zinc nanoparticles.

We investigated expressions of PD-L1, LAG-3, TIM-3, and OX40L as immune checkpoint proteins, and MSI (repetitive short-DNA-sequences due to defective DNA-repair system) status were analyzed with immunohistochemistry from tissue blocks. Of 83 patients, PD-L1 expression was observed in 18.1% (n = 15) of the patients. None of the patients exhibited LAG-3 expression. TIM-3 expression was 4.9% (n = 4), OX40L was 22.9% (n = 19), and 8.4% (n = 7) of the patients had MSI tumor. A low-to-intermediate positive correlation was observed between PD-L1 and TIM-3 expressions (rho: 0.333, p < 0.01). Although PD-L1 expression was higher in grade 3 NET/NEC, MSI status was prominent in grade 1/2 NET.

Common detection methods in practice for diagnosing colorectal cancer (CRC) are painful and invasive leading to less participation of individuals for CRC diagnosis. Whereas, improved or enhanced imaging systems and other minimally invasive techniques with shorter detection times deliver greater detail and less discomfort in individuals. Thus, this review is a summary of the diagnostic tests, ranging from the simple potential use in developing a flexible CRC treatment to the patient's potential benefits in receiving less invasive procedures and the advanced treatments that might provide a better assessment for the diagnosis of CRC and reduce the mortality related to CRC.

This study aimed to investigate the role of infiltrating immune cell types in diagnosing and predicting bladder cancer recurrence. This study mainly applied some algorithms, including Estimate the Proportion of Immune and Cancer Cells (EPIC), support vector machine-recursive feature elimination (SVM-RFE), random forest out-of-bag (RF-OOB) and least absolute shrinkage and selection operator (LASSO)-Cox regression analysis. We found six immune infiltrating cell types significantly associated with recurrence prognosis and two independent clinical prognostic factors. Infiltrating immune cell types (IICTs) based on the prognostic immune risk score (pIRS) models may provide significant biomarkers for the diagnosis and prognostic prediction of bladder cancer recurrence.

Objective: Regular screening can lead to early diagnosis of breast cancer. Australia is one of the countries with a high rate of participation in breast cancer screening, while in Iran, most patients are diagnosed in advanced stages. This qualitative study used a thematic analysis method to examine the attitudes and beliefs of Iranian and Australian women toward breast cancer and breast cancer screening.

Method: In-depth interviews were conducted with eight Iranian and seven Australian women. Data were collected through semi-structured interviews and analyzed using thematic analysis with an inferential approach.

Results: According to the results, four main themes were extracted for the perceptions of breast cancer, including "the meaning of breast cancer", "causes of breast cancer", "prevention of breast cancer" and "effects of significant people in life". Considering the perceptions of breast cancer screening, three themes were identified, including "beliefs about breast cancer screening," "sources of information about breast cancer screening," and "barriers to breast cancer screening."

Conclusion: Cultural and social factors influence women's perceptions of breast cancer and screening. Therefore, investigating the cultural meaning of breast cancer and breast cancer screening for women can be useful for screening and prevention purposes.

Literature on the role of multidisciplinary team (MDT) in cancer is still controversial. We aimed to investigate MDT impact on a panel of indicators in breast cancer care in a single-center retrospective study performed in a Cancer Reference Center in Italy. We analysed the diagnostic and therapeutic care pathway (DTCP) of 266 early breast cancer patients managed by our MDT during 2019-2020. Process indicators reflecting the change of the diagnostic and therapeutic care pathways occurred after the MDT discussion were computed. Further, the performance of some quality care indicators in breast cancer care since the establishment of the MDT activity and the breast cancer MDT members' perceptions were also investigated. According to our study, the MDT approach improves breast cancer management by increasing the completion of staging and by encouraging neo-adjuvant treatment and an appropriate and faster surgery. In MDT members' perspective it also improves decision-making and training and creates a positive work environment. Globally, our study encourages MDT rollout in breast cancer care. However, to enhance the reliability and comparability of the results of studies investigating MDT effectiveness in clinical practice, shared guidelines on its operationalisation are strongly desirable.

Multidisciplinary team meeting (MDT) became a standard of care in cancer management. The COVID-19 epidemic induced unprecedented pressure on the health system. The impact of this health crisis on MDTs held within a regional French health structures was analyzed. A decrease in the total number of records discussed in hematological, digestive, thoracic, gynecological and genitourinary MDTs was observed following the 1st wave of the COVID-19 pandemic. This decrease was generally maintained during the 2nd and 3rd wave. MDTs activity back in order from the 4th wave. The COVID-19 pandemic has challenged MDTs settings. The implementation of virtual technologies offers an opportunity to improve MDTs organization.

Approximately 65% of renal cell carcinomas (RCC) are diagnosed at a localized stage. We investigated the chromosome 5q gain impact on disease-free survival (DFS) in RCC patients. Overall, 676 patients with stages 1-2 RCC and having cytogenetic analysis were included. Gain of 5q was observed in 108 patients, more frequently in clear cell (ccRCC) than non-clear cell tumors. Gain of 5q is likely an independent prognostic factor since the concerned patients had a decreased recurrence risk in stages 1-2 RCC, confirmed in multivariable analysis. Detecting 5q gain could enhance recurrence risk assessment, allowing tailored post-surgery surveillance, and reducing unnecessary treatments.