Prognostic factors in treatment for low-grade brain supratentorial infiltrative gliomas

The study showed the results of univariate and multivariate analyses of treatment of patients with low-grade brain supratentorial infiltrative gliomas. It was reaffirmed the importance of the most significance of such adverse prognostic factors as histology, tumor size, displacement of midline structures of the brain, age and neurological deficit. When assessing the prognostic significance of severity of the debut of clinical symptoms in this category of neuro-oncological patients as well as radical surgical treatment of the primary tumor there were obtained data confirming the absence of their independent prognostic significance

Prognostic factors in treatment for low-grade brain supratentorial infiltrative gliomas

The study showed the results of univariate and multivariate analyses of treatment of patients with low-grade brain supratentorial infiltrative gliomas. It was reaffirmed the importance of the most significance of such adverse prognostic factors as histology, tumor size, displacement of midline structures of the brain, age and neurological deficit. When assessing the prognostic significance of severity of the debut of clinical symptoms in this category of neuro-oncological patients as well as radical surgical treatment of the primary tumor there were obtained data confirming the absence of their independent prognostic significance

Возможности типирования рака молочной железы с использованием методики ОТ-ПЦР

Introduction. Adjuvant systemic therapy remains one of the main options for treating breast cancer. Results of standard immunohistochemical studies are not always a criterion for selecting systemic therapy. Nowadays, multigene expression analysis is actively used to predict the response to chemotherapy in patients with early-stage breast cancer. We studied a 24-gene multi-gene panel for typing breast cancer. Material and Methods. A prospective analysis of 199 breast cancer patients (T1-3N0-3M0) was carried out. Surgical specimens were studied using the standard immunohistochemistry (IHC) and RT-PCR for detecting expression of 24 genes. Results. According to the IHC results, breast cancer was divided into 5 molecular subtypes: luminal A was detected in 59 (30 %) patients; luminal B (HER2-negative) in 52 (26 %); luminal B (HER2-positive) in 19 (9 %); triple-negative in 28 (14 %); HER2-positive 41 (21 %). RT-PCR showed that STK15, MYC, MYBL2, BIRCC5, BCL2, TERT, ESRP1, PGR, HER2, GBR7, MGB1 and MMP11 were the most significant genes in subtype distribution. The total percentage of matches between the two studies was 61.7 %. Conclusion. Studies have shown the need to add additional typing methods for breast cancer to a standard IHC study, which will undoubtedly increase the information content of diagnostic measures and will improve the effectiveness of the treatment.Введение. Адъювантная системная терапия остается одним из основных методов лечения у больных раком молочной железы. Результаты стандартного иммуногистохимического исследования не всегда в полной мере являются критерием для выбора системной терапии. Для прогнозирования эффективности лечения при ранних стадиях активно применяется мультигенный экспрессионный анализ. Была изучена отечественная мультигенная панель, состоящая из 24 генов, позволяющая типировать рак молочной железы. Материал и методы. Проводился проспективный анализ 199 больных РМЖ (T1-3N0-3M0), в ходе которого операционный материал подвергался стандартному иммуногистохимическому исследованию, а также он изучался методом ОТ-ПЦР с выявлением экспрессии 24 генов. Результаты. По результатам ИГХ осуществлялось молекулярное типирование РМЖ с выделением 5 подтипов: люминальный тип А был выявлен у 59 (30 %) больных; люминальный В (HER2-негативный) -у 52 (26 %); люминальный В (HER2-позитивный) - у 19 (9 %); трижды негативный - у 28 (14 %); HER2-позитивный - у 41 (21 %) пациента. По данным ОТ-ПЦР наиболее значимыми генами в распределении на подтипы рака молочной железы являлись: STK15, MYC, MYBL2, BIRCC5, BCL2, TERT, ESRP1, PGR, HER2, GBR7, MGB1 и MMP11. При дальнейшем анализе суммарное число совпадений данных двух исследований составило 61,7 %. Заключение. Проведенные исследования продемонстрировали необходимость добавления дополнительных методов типирования рака молочной железы к стандартному ИГХ-исследованию, что, несомненно, повысит информативность диагностических мероприятий и позволит повысить эффективность проводимого лечения

Breast cancer typing using RT-PCR assay [вОЗМОЖнОСТи ТиПирОваниЯ раКа МОЛОЧнОй ЖеЛеЗы С иСПОЛьЗОваниеМ МеТОдиКи ОТ-ПЦр]

Introduction. adjuvant systemic therapy remains one of the main options for treating breast cancer. Results of standard immunohistochemical studies are not always a criterion for selecting systemic therapy. Nowadays, multigene expression analysis is actively used to predict the response to chemotherapy in patients with early-stage breast cancer. We studied a 24-gene multi-gene panel for typing breast cancer. Material and Methods. a prospective analysis of 199 breast cancer patients (t1–3N0–3M0) was carried out. surgical specimens were studied using the standard immunohistochemistry (IHc) and Rt-PcR for detecting expression of 24 genes. Results. according to the IHc results, breast cancer was divided into 5 molecular subtypes: luminal a was detected in 59 (30 %) patients; luminal B (HER2-negative) in 52 (26 %); luminal B (HER2-positive) in 19 (9 %); triple-negative in 28 (14 %); HER2-positive 41 (21 %). Rt-PcR showed that stK15, MYc, MYBL2, BIRcc5, BcL2, tERt, EsRP1, PGR, HER2, GBR7, MGB1 and MMP11 were the most significant genes in subtype distribution. the total percentage of matches between the two studies was 61.7 %. Conclusion. studies have shown the need to add additional typing methods for breast cancer to a standard IHc study, which will undoubtedly increase the information content of diagnostic measures and will improve the effectiveness of the treatment. © 2019 Tomsk National Research Medical Center of the Russian Academy of Sciences. All rights reserved