Publications by authors named "Jessica St Laurent"

•Ovarian carcinosarcoma is a rare ovarian cancer histology that has limited treatment options.•In this study, we present an unusual association between carcinosarcoma and a STIC lesion.•In select patients with carcinosarcoma, PARP inhibition may provide clinical benefit.

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Intrinsically disordered regions (IDRs) represent a large percentage of overall nuclear protein content. The prevailing dogma is that IDRs engage in non-specific interactions because they are poorly constrained by evolutionary selection. Here, we demonstrate that condensate formation and heterotypic interactions are distinct and separable features of an IDR within the ARID1A/B subunits of the mSWI/SNF chromatin remodeler, cBAF, and establish distinct "sequence grammars" underlying each contribution.

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In recurrent ovarian cancer patients the addition of surgical cytoreduction is associated with prolonged overall survival compared to chemotherapy treatment alone when complete cytoreduction is achieved (Harter et al., 2021, Shi et al., 2021, Coleman et al.

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To investigate if differences in imprinting at tropho-microRNA (miRNA) genomic clusters can distinguish between pre-gestational trophoblastic neoplasia cases (pre-GTN) and benign complete hydatidiform mole (CHM) cases at the time of initial uterine evacuation. miRNA sequencing was performed on frozen tissue from 39 CHM cases including 9 GTN cases. DIO3, DLK1, RTL1, and MEG 3 mRNA levels were assessed by qRT-PCR.

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Background: MicroRNAs are small noncoding RNAs with important regulatory functions. Although well-studied in cancer, little is known about the role of microRNAs in premalignant disease. Complete hydatidiform moles are benign forms of gestational trophoblastic disease that progress to gestational trophoblastic neoplasia in up to 20% of cases; however, there is no well-established biomarker that can predict the development of gestational trophoblastic neoplasia.

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Objective: 18F-fluorodeoxyglucose positron emission tomography-computed tomography (PET-CT) increases the sensitivity for preoperative detection of lymph nodes and distant metastases in endometrial cancer. The objective of this investigation was to determine the prognostic value of preoperative PET-CT compared with computed tomography (CT) alone for high-risk endometrial carcinoma.

Materials And Methods: We performed a retrospective review of high-risk histology endometrial cancer from 2008 to 2015.

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Introduction: Several studies have reported optimizing ultrastaging protocols using immunohistochemistry for sentinel lymph node (SLN) biopsy in endometrial carcinoma; however, the clinical significance of isolated tumor cells (ITCs) detected by ultrastaging is unknown. This study aimed to: (1) determine the frequency of retrospective ITC detection in patients with endometrial carcinoma and reported negative SLNs determined by hematoxylin and eosin (H&E) examination only; and (2) determine the clinicopathological features and outcomes of patients with endometrial carcinoma and previously undetected ITCs.

Methods: 474 SLNs from 155 patients with endometrial carcinoma and reported negative SLNs were subjected to an immunohistochemistry protocol which included staining slides with cytokeratin at 1, 10, 20, and 50 µm levels, to examine for ITCs.

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Article Synopsis
  • The study looked at how keeping ovaries during surgery affects young women with early-stage low-grade endometrial cancer.
  • It analyzed data from women under 50 in the US and Japan who had surgery between 2000 and 2014.
  • The results showed that while more women in the US are keeping their ovaries, this option has different effects on cancer outcomes, with risks of recurrence or other cancers being higher in the Japan group.
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Globally, human papillomavirus (HPV) infection is one of the most common sexually transmitted infection. HPV is linked to at least five malignancies including vulvar, vaginal, anal penile, oropharyngeal, and cervical cancer. Three HPV vaccines are currently available: bivalent (HPV 16,18), quadrivalent (HPV 6,11,16,18), and nonavalent (6,11,16,18,31,33,45,52,58) targeting between 2 and 7 oncogenic HPV serotypes.

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Purpose: To determine whether the cif gene is present in pathogenic Pseudomonas aeruginosa isolates from patients with bacterial keratitis at Aravind Eye Hospital, a referral eye care center in southern India, and from corresponding environmental isolates.

Methods: Polymerase chain reaction amplification was performed on strains of P. aeruginosa isolated from ocular infections and environmental soil samples were collected from the area surrounding Aravind Eye Hospital.

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Background: Although human breast development is mediated by hormonal and non-hormonal means, the mechanisms that regulate breast progenitor cell activity remain to be clarified. This limited understanding of breast progenitor cells has been due in part to the lack of appropriate model systems to detect and characterize their properties.

Methods: To examine the effects of WNT signaling and TBX3 expression on progenitor activity in the breast, primary human mammary epithelial cells (MEC) were isolated from reduction mammoplasty tissues and transduced with lentivirus to overexpress WNT1 or TBX3 or reduce expression of their cognate receptors using shRNA.

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Pseudomonas aeruginosa secretes an epoxide hydrolase virulence factor that reduces the apical membrane expression of ABC transporters such as the cystic fibrosis transmembrane conductance regulator (CFTR). This virulence factor, named CFTR inhibitory factor (Cif), is regulated by a TetR-family, epoxide-responsive repressor known as CifR via direct binding and repression. We identified two sites of CifR binding in the intergenic space between cifR and morB, the first gene in the operon containing the cif gene.

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