Improvements in large-scale production of Tobacco Etch Virus protease.

Tobacco-etch-virus (TEV) protease is the workhorse of many laboratories in which protein expression is the linchpin of downstream experiments. TEV protease is remarkable in its sequence specificity as the cleavage sequence rarely appears in higher organisms and its ability to cleave fusion tag proteins from proteins of interest. Herein we report work done on large-scale production of TEV protease using different promotors, media, fusion tags, and expression platforms.

Validation of the Abbreviated PTSD Checklist-Civilian as a Traumatic Stress Screener for Parents of Children With Cancer.

Researchers and clinicians often use the six-item abbreviated Posttraumatic Stress Disorder Checklist-Civilian (PCL-6) for screening; however, the PCL-6 has not been validated for parents of children with cancer. A valid and reliable short screener like the PCL-6 would allow bedside and/or advanced practice nurses to quickly screen parents for traumatic stress and expedite referrals for support services. This study used data collected during a multisite trial examining an intervention for children with cancer and their parents.

A phase II study evaluating safety and efficacy of niraparib in patients with previously treated homologous recombination defective metastatic esophageal/gastroesophageal junction/proximal gastric adenocarcinoma.

Introduction: Esophageal adenocarcinoma (EAC) remains a devastating disease and second line treatment options in the metastatic space are limited. Homologous recombination (HR) defects have been described in EAC in up to 40% of patients. Poly (ADP-ribose) polymerase (PARP)1 and PARP2 inhibitors have shown efficacy in HR defective prostate and ovarian cancers.

Comprehensive genomic analysis reveals molecular heterogeneity in pediatric ALK-positive anaplastic large cell lymphoma.

Anaplastic large cell lymphoma (ALCL) is a mature T-cell lymphoma that accounts for 10-15% of childhood lymphomas. Despite the observation that more than 90% of pediatric cases harbor the anaplastic lymphoma kinase (ALK) rearrangement resulting in aberrant ALK kinase expression, there is significant clinical, morphologic, and biological heterogeneity. To gain insights into the genomic aberrations and molecular heterogeneity within ALK-positive ALCL (ALK+ ALCL), we analyzed 46 pediatric ALK+ ALCLs by whole-exome sequencing, RNA sequencing, and DNA methylation profiling.