Xiao Zhang

Comparative Evaluation of 68Ga-FAPI-04 PET for Initial N and M Staging in Gastric Cancer: A Study Against Histopathology and Contrast-Enhanced CT

Purpose: To evaluate the efficiency of 68Ga-FAPI-04 PET (PET/MRI or PET/CT) for N and M staging in gastric carcinoma and compare outcomes with histopathology and contrast-enhanced computed tomography (CECT). Patients and Methods: Patients with gastric carcinoma who had undergone 68Ga-FAPI-04 PET/MRI or PET/CT before treatment were retrospectively enrolled. Histopathology post lymphadenectomy was the gold standard for N staging, while histopathology and follow-up data were the reference for overall outcomes. The diagnostic efficiency of 68Ga-FAPI-04 PET for detecting regional lymph node involvement and distant metastases was compared to that of CECT. Results: Sixty-two patients were enrolled. In 18 patients who underwent 68Ga-FAPI-04 PET/MRI and lymphadenectomy, 532 lymph nodes were dissected. 68Ga-FAPI-04 PET/MRI showed similar sensitivity, specificity, and accuracy compared to CECT (28.3% vs. 23.2%, 99.8% vs. 99.3%, and 86.5% vs. 85.2%, all P > 0.05). Fifty-five patients had regional lymph node metastasis, 68Ga-FAPI-04 PET exhibited comparable diagnostic efficiency to CECT, with sensitivity of 83.6% versus 87.3%, specificity of 100% versus 85.7%, accuracy of 85.5% versus 87.1% (all P > 0.05). Excluding 3 patients with only abdominal CECT, 32 out of 59 patients had distant metastasis, with no significant differences in sensitivity, specificity, and accuracy between 68Ga-FAPI-04 PET and CECT based on patient (100% vs. 87.5%, 92.6% vs. 96.3%, and 96.6% vs. 91.5%, all P >0.05). Notably, 68Ga-FAPI-04 PET outperformed CECT in detecting peritoneal, distant lymph nodes, bone, liver, and ovarian metastases by visualizing more lesions or greater lesion extent. Conclusions: 68Ga-FAPI-04 PET exhibits comparable diagnostic performance to CECT for patient-based N staging and M staging of gastric cancer. However, it surpasses CECT in visualizing distant metastases.

Therapeutic targeting of CPSF3-dependent transcriptional termination in ovarian cancer

Transcriptional dysregulation is a recurring pathogenic hallmark and an emerging therapeutic vulnerability in ovarian cancer. Here, we demonstrated that ovarian cancer exhibited a unique dependency on the regulatory machinery of transcriptional termination, particularly, cleavage and polyadenylation specificity factor (CPSF) complex. Genetic abrogation of multiple CPSF subunits substantially hampered neoplastic cell viability, and we presented evidence that their indispensable roles converged on the endonuclease CPSF3. Mechanistically, CPSF perturbation resulted in lengthened 3′-untranslated regions, diminished intronic polyadenylation and widespread transcriptional readthrough, and consequently suppressed oncogenic pathways. Furthermore, we reported the development of specific CPSF3 inhibitors building upon the benzoxaborole scaffold, which exerted potent antitumor activity. Notably, CPSF3 blockade effectively exacerbated genomic instability by down-regulating DNA damage repair genes and thus acted in synergy with poly(adenosine 5'-diphosphate–ribose) polymerase inhibition. These findings establish CPSF3-dependent transcriptional termination as an exploitable driving mechanism of ovarian cancer and provide a promising class of boron-containing compounds for targeting transcription-addicted human malignancies.

A rare case of sclerosing stromal tumor of the ovary presenting in pregnancy: a case report and review of the literature

Sclerosing stromal tumor of the ovary (SSTO) is a rare benign neoplasm of the ovary, accounting for about 6% of all sex cord stromal ovarian tumors. Only 17 cases of SSTO occurring during pregnancy have been reported to date. We report a case of SSTO occurring during pregnancy and review the existing literature. A 32-year-old pregnant woman was found to have a 10-cm solid mass in the right adnexa, and a large volume of ascites fluid was detected by ultrasound examination in the second trimester. The patient underwent abdominal puncture to relieve her symptoms in the second trimester, and a partial right oophorectomy and cesarean section were performed at 39 weeks of gestation. Final pathology confirmed the diagnosis of SSTO. Both the mother and baby were well at 6 months of postpartum follow-up. Clinical symptoms, and hormone and imaging examinations are all helpful in making a differential diagnosis of SSTO, but the unique histopathological and immunohistochemistry findings remain the main diagnostic features. Pregnant women with SSTO usually undergo enucleation or unilateral oophorectomy, which generally does not have adverse pregnancy outcomes.

Self-Advocacy Among Women With Uterine Malignancies

Background Self-advocacy plays a crucial role in the mental health and treatment outcomes of oncology patients, particularly those with uterine malignancies. Despite its significance, research on the self-advocacy levels and influencing factors among Chinese patients with uterine malignancies remains limited. Objectives To assess the self-advocacy levels among Chinese patients with uterine malignancies and identify the demographic, psychological resilience, and decision self-efficacy factors that influence self-advocacy. Methods This cross-sectional study was conducted from March 1 to September 1, 2023, involving 220 inpatients with uterine malignancies from three tertiary hospitals in Shandong Province, China. Participants were recruited using convenience sampling and completed the General Information Questionnaire, Female Cancer Survivorship Self-advocacy Scale, Connor–Davidson Resilience Scale, and Decision Self-efficacy Scale. Results The average self-advocacy score among participants was 59.44 ± 10.14. Significant positive correlations were found between self-advocacy, psychological resilience, and decision self-efficacy. The random forest algorithm identified decision self-efficacy, psychological resilience, family average income, type of medical insurance, educational level, and residence as the six most important influencing factors, with the optimal model performance observed when lambda (λ) = 1.191. Multiple linear regression analysis further confirmed that decision self-efficacy, psychologic resilience, family average income, educational level, and residence were significant predictors of self-advocacy. Discussion The self-advocacy levels of Chinese patients with uterine malignancies were relatively low, with decision self-efficacy, psychological resilience, and socioeconomic factors significantly influencing their self-advocacy abilities. Future targeted interventions should focus on enhancing patients’ decision self-efficacy and psychological resilience, thereby guiding them to actively respond and participate in decision-making, ultimately improving self-advocacy among patients with uterine malignancies.