Recapitulating thyroid cancer histotypes through engineering embryonic stem cells.

Thyroid carcinoma (TC) is the most common malignancy of endocrine organs. The cell subpopulation in the lineage hierarchy that serves as cell of origin for the different TC histotypes is unknown. Human embryonic stem cells (hESCs) with appropriate in vitro stimulation undergo sequential differentiation into thyroid progenitor cells (TPCs-day 22), which maturate into thyrocytes (day 30). Here, we create follicular cell-derived TCs of all the different histotypes based on specific genomic alterations delivered by CRISPR-Cas9 in hESC-derived TPCs. Specifically, TPCs harboring BRAFV600E or NRASQ61R mutations generate papillary or follicular TC, respectively, whereas addition of TP53R248Q generate undifferentiated TCs. Of note, TCs arise by engineering TPCs, whereas mature thyrocytes have a very limited tumorigenic capacity. The same mutations result in teratocarcinomas when delivered in early differentiating hESCs. Tissue Inhibitor of Metalloproteinase 1 (TIMP1)/Matrix metallopeptidase 9 (MMP9)/Cluster of differentiation 44 (CD44) ternary complex, in cooperation with Kisspeptin receptor (KISS1R), is involved in TC initiation and progression. Increasing radioiodine uptake, KISS1R and TIMP1 targeting may represent a therapeutic adjuvant option for undifferentiated TCs.

The intention to get COVID-19 vaccine and vaccine uptake among cancer patients: An extension of the theory of planned behaviour (TPB).

The psychosocial impact of coronavirus disease 2019 (COVID-19) on human life is well-known. Although vaccine protection represents an effective way to control the spread of the virus, vaccination hesitancy may decrease individuals' willingness to get vaccinated, including among cancer patients. Therefore, the objective of the current study was to examine the predictors of cancer patients' intentions to receive COVID-19 vaccinations and vaccine uptake, using and integrating the theory of planned behaviour (TPB) and the health belief model (HBM). A sample of 276 Italian cancer patients (54% female and 46% male) ranging from 19 to 85 years (M = 49.64, SD = 11.53) was recruited by administering an online questionnaire. The current study results showed that cancer patients with higher trust in health authorities tended to have vaccine-positive subjective norms, perceived that vaccination was under their control, and viewed COVID-19 vaccines positively. On the other hand, the perceived risk of COVID-19 was related to subjective norms but not to perceived behavioural control or attitudes towards COVID-19 vaccination. The current study reveals that TPB variables can function effectively as mediators between perceived risk, trust, and intention to vaccinate but at different levels. Together, these findings suggest that effective interventions (both public health messaging and personal medical communications) should focus on enhancing trust in health authorities, while at the same time endeavouring to highlight subjective norms that are vaccine-positive.

Assessing the fear of recurrence using the Cancer Worry Scale in a sample of Italian breast cancer survivors.

PURPOSE: The fear of cancer recurrence (FCR) is one of the most reported problems by cancer survivors. A valid instrument to detect this issue could be useful to identify cancer survivors who are more vulnerable to developing FCR and related adverse outcomes (e.g., anxiety). The present study aimed to evaluate FCR in a sample of Italian breast cancer survivors using an Italian version of the 8-item Cancer Worry Scale (CWS) in order to establish a cut-off for the use in clinical settings. METHODS: The participants were 119 breast cancer survivors (mean age 47.7 years) at least 1 year after their primary treatment. An exploratory factor analysis (EFA) of CWS, internal reliability of CWS, concurrent and divergent validity using a bivariate correlation between the key measures of the study (i.e., FCR, anxiety, depression, fatigue, and self-efficacy), and ROC analysis of CWS were performed. RESULTS: Fit indices for the EFA were considered acceptable and showed a two-factor structure-labeled cancer worries and worries impact. The reliability of the two factors showed a Cronbach's alpha coefficient greater than 0.90. The CWS was positively related to anxiety, depression, fatigue, and negatively related to perceived self-efficacy. The best cut-off score was 24 versus 25, with a sensitivity of 74% and a specificity of 85%. CONCLUSIONS: The CWS is a valid questionnaire to assess FCR among breast cancer survivors. The present study provides an overview of the relationship between CWS and the adverse outcomes related to FCR and coping strategies adopted to face it.