Blood levels of growth and progression factors in patients with locally advanced breast cancer during neoadjuvant chemotherapy

Introduction. Soft tissue sarcomas (STS) are rare diseases but their characteristic tendency for recurrence and high mortality dictate the need for the search for prognostic biomarkers for identification of patients with the risk of recurrence. In this context, the system of insulin-like growth factors (IGF) and their insulin-like growth factor-binding proteins (IGFBP) is of interest because it was shown that disruption of the IGF system regulation leads to cancer cell proliferation and migration and chemotherapy resistance.The study objective is to investigate the levels of the IGF system components in blood of patients with primary and recurrent STS.Materials and methods. In total, 54 patients with STS, T2bN0M0, were examined: 12 men and 12 women with primary STS, 10 men and 20 women with recurrent STS, as well as healthy donors (10 men and 10 women). Mean patient age was 63.1 ± 0.9 years. In blood sampled prior to treatment, the levels of insulin-like growth factor 1 (IGF1), insulin-like growth factor 2 (IGF2) and insulin-like growth factor-binding protein 2 (IGFBP2) were measured by ELISA using Mediagnost kits (Germany). Statistical analysis was performed using Statistica 10 software and non-parametric Mann-Whitney test.Results. In primary STS, the levels of IGF1 in men with G3–4 tumors and all women decreased 14- and 20-fold, respectively, compared to healthy donors. Additionally, an insignificant decrease of IGF2 level in men and a decrease of IGF1/IGF2 ratio by the factor of 8.8 in men with G3–4 tumors and by the factor of 24.3 in women were observed. In recurrences, IGF1 level decreased by 40 % in men and by 78–85.5 % in women, while IGF2 level in men with G3–4 tumors decreased by 19 %, in women increased by 21–58 % compared to donors. In women with primary STS and recurrences of G3–4 tumors, IGFBP2 was also elevated. In men with G3–4 tumors, changes in IGFBP2 levels were less significant and had an opposite trend compared to women.Conclusion. STS recurrence is accompanied by imbalance of IGF system components in blood, especially in patients of both sexes with G3–4 tumors. Correlation between increased IGFBP2 level in STS and clinical characteristics of the disease, especially in recurrence, suggest prognostic significance of this molecule.

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Insulin-like growth factors and their transfer protein in the blood of patients with primary and recurrent soft tissue sarcomas

Goroshinskaya

Kaplieva

Sagatelyan

et al. 2022

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Serum HIF-1α and TGF-β1 levels depending on the clinical and morphological characteristics of breast cancer and sensitivity of tumor to neoadjuvant chemotherapy

Zubareva

Сеньчукова

Virich

et al. 2021

Issled. prakt. med. (Print)

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Purpose of the study. To assess the serum levels of HIF-1 α and TGF-β1 in patients with invasive breast cancer (BC) depending on the clinical and morphological characteristics, molecular biological subtypes and the degree of pathological response (PR) of the tumor and metastases in the regional lymph nodes.Materials and methods. 65 patients with newly diagnosed invasive BC, of whom 32 received from 6 to 8 courses of neoadjuvant chemotherapy (neo-A-CT) were included in this pilot study. The levels of TGF-β1 and HIF-1α were determined by enzyme-linked immunosorbent assay. Statistical analysis was performed using the Statistica 12.0 software.Results. It was found that a high level of TGF-[31 was significantly more often observed in HER2-positive and I-IIa stages of luminal A and triple-negative BC (p = 0.01). HIF-1a levels were significantly higher in the presence of distant metastases (p = 0.04) and slightly higher in the presence of microcalcifications on mammograms (p = 0.07).The analysis showed that patients with grade III-IV of PR in tumor were significantly younger (p = 0.047). Grade III-IV of PR in tumor was significantly more often observed in G3 (p = 0.05), in Her2-positive and triple negative BC (p = 0.01), in the absence of perineural (p = 0.002) and lymphovascular invasion (LVI) (p = 0.045), in the presence of lymphoid infiltration (p = 0.011) and microcalcifications in the tumor (p = 0.043), and slightly higher in ductal BC (p = 0.08). No significant correlations were found between the levels of TGF-p1 and HIF-1a and tumor PR (p = 0.6 and p = 0.9, respectively). However, in patients with grade III-IV of PR in regional metastases, the level of TGFb1 was significantly lower than in patients with grade I-II (p = 0.03).Conclusions. Thus, these data indicate the presence of correlations between the levels of HIF-1 α and TGF-β1 in the blood serum and a number of clinical characteristics of BC. The highest levels of HIF-1α are observed in the presence of distant metastases, and the highest levels of TGF-β1 are noted in HER2-positive and I-IIa stages of luminal A and triple-negative breast cancer. Given the presence of significant correlations between the level of TGF-β1 and the degree of PR in regional lymph nodes, its determination may be useful for assessing the sensitivity of metastases to regional lymph nodes to the neo-A-CT.

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Epoetin alpha in the treatment of anemia in patients with malignant solid tumors during antitumor drug therapy

Vladimirova¹,

Абрамова²,

Lyanova³

et al. 2022

Medicinskij sovet

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Introduction. Erythropoietin (EPO) application is a pathogenetic method for anemia correction in cancer patients.The purpose of study. Clinical evaluation of the efficacy and safety of Eralfon® (epoetin alpha) in treatment for anemia in patients with malignant solid tumors during medical anticancer therapy.Materials and methods. We analyzed the data on anemia treatment with Eralfon® in 184 patients with malignant solid tumors receiving various medical anticancer therapies. Eralfon® was injected subcutaneously 12 000 IU 3 times per week or 40 000 IU once a week. Clinical antianemic effect, the time to maximum antianemic effect, adverse events (AE) were analyzed.Results. Patients were stratified by the grade of anemia, stages of treatment, presence of bone metastases, bleeding, previous medical and radiation anticancer therapies, dosage of Eralfon®. The time to effect was shorter in patients under 65. There were no significant differences in efficacy depending on the dosing regimen of Eralfon®. Efficacy was lower in patients with advanced tumors, especially in bone metastases. A history of tumor bleeding, chemotherapy and/or radiation therapy prolonged the period of hemoglobin recovery to normal values. Arterial hypertension and venous thrombosis were the most common AE associated with Eralfon®. Eralfon® 12 000 IU 3 times per week caused less frequent complications, with no cases of ossealgia and myalgia.Conclusion. Eralfon® demonstrated clinical efficacy in treatment for anemia in patients with solid malignant tumors receiving medical anticancer therapy. Dosage of 12 000 IU 3 times per week provided better control of the antianemic effect and adverse events.

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Blood levels of growth and progression factors in patients with locally advanced breast cancer during neoadjuvant chemotherapy

Cited by 3 publications

References 14 publications

Insulin-like growth factors and their transfer protein in the blood of patients with primary and recurrent soft tissue sarcomas

Insulin-like growth factors and their transfer protein in the blood of patients with primary and recurrent soft tissue sarcomas

Serum HIF-1α and TGF-β1 levels depending on the clinical and morphological characteristics of breast cancer and sensitivity of tumor to neoadjuvant chemotherapy

Epoetin alpha in the treatment of anemia in patients with malignant solid tumors during antitumor drug therapy

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