Doxorubicin/cisplatin co-loaded hyaluronic acid/chitosan-based nanoparticles for in vitro synergistic combination chemotherapy of breast cancer

Publication date: Available online 15 August 2019Source: Carbohydrate PolymersAuthor(s): Yaping Wang, Junmin Qian, Ming Yang, Weijun Xu, Jinlei Wang, Guanghui Hou, Lijie Ji, Aili SuoAbstractCombination chemotherapy has attracted more and more attention in the field of anticancer treatment. Herein, a synergetic targeted combination chemotherapy of doxorubicin (DOX) and cisplatin in breast cancer was realized by HER2 antibody-decorated nanoparticles assembled from aldehyde hyaluronic acid (AHA) and hydroxyethyl chitosan (HECS). Cisplatin and DOX were successively conjugated onto AHA through chelation and Schiff’s base reaction, respectively, forming DOX/cisplatin-loaded AHA inner core. The core was sequentially complexed with HECS and targeting HER2 antibody-conjugated AHA. The formed near-spherical nanoplatform had an average size of ˜160 nm and a zeta potential of −28 mV and displayed pH-responsive surface charge reversal and drug release behaviors. HER2 receptor-mediated active targeting significantly enhanced the cellular uptake of nanoplatform. Importantly, DOX and cisplatin exhibited a synergistic cell-killing effect in human breast cancer MCF-7 cells. These results clearly indicate that the novel nanoplatform is promising for synergistic combination chemotherapy of breast cancer.
Source: Carbohydrate Polymers - Category: Biomedical Science Source Type: research

Related Links:

ConclusionPremenopausal Asian women with breast cancer have unique disease characteristics and may benefit from treatment that differs somewhat from international guidelines. Given the great diversity of patients and clinical settings worldwide, the ABCCG advocates evidence-based yet flexible and individualized use of all potential options to improve breast cancer outcomes.
Source: Breast Cancer Research and Treatment - Category: Cancer & Oncology Source Type: research
AbstractPurposeGene expression profiling (GEP) test scores calculate risks of recurrence and likely benefit of adjuvant chemotherapy in ER-positive, HER2-negative, early-stage breast cancer. As health literacy and numeracy skills in the general population are poor, healthcare professionals (HCPs) require a wide repertoire of communication skills to explain clearly risk of recurrence scores (RSs) and uncertainty. We developed and evaluated an educational program for HCPs discussing GEP test results and adjuvant treatment.MethodsEight-hour workshops contained elements aimed at improving knowledge, communication skills and se...
Source: Breast Cancer Research and Treatment - Category: Cancer & Oncology Source Type: research
Roche today announced the phase III FeDeriCa study met its primary endpoint. The study showed a new investigational fixed-dose combination (FDC) of Perjeta ® (pertuzumab) and Herceptin® (trastuzumab), administered by subcutaneous (SC) injection in combination with intravenous (IV) chemotherapy, demonstrated non-inferior levels of Perjeta in the blood (pharmacokinetics) compared to standard IV infusion of Perjeta plus Herceptin and chemotherapy in peo ple with HER2-positive early breast cancer (eBC).
Source: Roche Media News - Category: Pharmaceuticals Source Type: news
Abstract PURPOSE: High levels of tumor-infiltrating lymphocytes (TILs) before neoadjuvant chemotherapy (NAC) are associated with higher pathological complete response (pCR) rates, and better survival in TNBC and HER2-positive breast cancers (BCs). We investigated the value of TIL levels by evaluating lymphocyte infiltration before and after NAC. PATIENTS AND METHODS: We assessed stromal TIL levels in 716 pre- and post-treatment matched paired specimens, according to the guidelines of the international TIL working group. RESULTS: Pre-NAC TIL levels were higher in tumors for which pCR was achieved than in ...
Source: Clinical Cancer Research - Category: Cancer & Oncology Authors: Tags: Clin Cancer Res Source Type: research
Abstract PURPOSE: Adjuvant therapy for small, node-negative HER2-positive breast cancer (HER2+ BC) is controversial. We aimed to identify the subgroup that would benefit most from adjuvant chemotherapy and trastuzumab. EXPERIMENTAL DESIGN: We reviewed records of patients with pT1N0M0 HER2+ BC treated at our institution from January 1, 1998, through October 31, 2009. We compared three groups: A, no adjuvant chemotherapy; B, adjuvant chemotherapy only; and C, adjuvant chemotherapy with trastuzumab. We evaluated disease-free survival (DFS), overall survival (OS), distant recurrence-free survival (DRFS), and brea...
Source: Clinical Cancer Research - Category: Cancer & Oncology Authors: Tags: Clin Cancer Res Source Type: research
Authors: Mangone L, Mancuso P, Tagliabue G, Filiberti RA, Carrozzi G, Iacovacci S, Mazzucco W, Tumino R, Minicozzi P, Sant M, Giorgi Rossi P Abstract OBJECTIVE: To evaluate the frequency of neoadjuvant therapy (NT) in women with stage I-III breast cancer in Italy and whether it is influenced by biological characteristics, screening history, and geographic area. METHODS: Data from the High Resolution Study conducted in 7 Italian cancer registries were used; they are a representative sample of incident cancers in the study period (2009-2013). Included were 3546 women aged
Source: Tumori - Category: Cancer & Oncology Tags: Tumori Source Type: research
The impact of HER2-targeted therapy alone followed by the addition of chemotherapy at disease progression (PD) versus upfront combination was investigated by the SAKK 22/99 trial. The aim of this exploratory a...
Source: BMC Cancer - Category: Cancer & Oncology Authors: Tags: Research article Source Type: research
ConclusionDespite guideline recommendations, a high rate of preoperative staging imaging is completed for patients with clinical stage 1 or 2 breast cancer who receive NAC, with few positive results.
Source: Annals of Surgical Oncology - Category: Cancer & Oncology Source Type: research
Conditions:   Anatomic Stage 0 Breast Cancer AJCC v8;   Anatomic Stage I Breast Cancer AJCC v8;   Anatomic Stage IA Breast Cancer AJCC v8;   Anatomic Stage IB Breast Cancer AJCC v8;   Anatomic Stage II Breast Cancer AJCC v8;   Anatomic Stage IIA Breast Cancer AJCC v8;   Anatomic Stage IIB Breast Cancer AJCC v8;   Early-Stage Breast Carcinoma;   Estrogen Rece...
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
ConclusionSeveral features are associated with long-term response to trastuzumab: few metastatic sites, taxane-based chemotherapy and maintenance endocrine therapy in HR+ patients. Further studies are needed to identify patients in whom trastuzumab can be stopped after several years of sustained response.
Source: Breast Cancer Research and Treatment - Category: Cancer & Oncology Source Type: research
More News: Biomedical Science | Breast Cancer | Cancer | Cancer & Oncology | Carbohydrates | Chemotherapy | HER2 | Nanotechnology