State-of-the-Art of the Major Nanopharmaceuticals Treatments in Breast Cancer: A Systematic Review

2021 ◽  
Vol 2 (1) ◽  
pp. 6-12
Author(s):  
Caroline Araújo Gonçalves ◽  
◽  
Carlos Roberto Antônio ◽  
Idiberto José Zotarelli-Filho ◽  
◽  
...  

Introduction: Breast cancer is the most frequently detected cancer in women worldwide, its metastasis is responsible for 90% of deaths. Breast carcinoma is the most common cancer in women worldwide and the most common cause of deaths associated with malignancies. Hyaluronic acid (HA) is the main molecule binding to CD44 and has proved to be a significant ally in the development of nanotransporters that demonstrate preferential accumulation of tumors and increased cellular uptake. Objective: Carry out a systematic review of the main treatments to reduce or prevent the proliferation of breast cancer. Methods: A total of 59 articles have found and after the selection process 20 articles have included and discussed in this study. PUBMED, EMBASE, OVID, AND COCHRANE LIBRARY databases were searched. Results: cationic liposomes containing the conjugate hyaluronic acid-dioleoylphosphatidylethanolamine (HA-DOPE) mediated good transfection in cell lines that express CD44 in culture. Still, other results suggested that the formulation of lapatinib (LPT) coated with HA increases the activity of LPT against triple-negative breast cancer. In addition, compared to free doxorubicin (DOX), superior in vivo antitumor efficacy of modified carbon spots (HA HA-CD) and (p-CBA-DOX) was observed in heterotopic and orthotopic 4T1 cell tumor models. In addition, hematological and biochemical analysis of blood showed that HA-CD and p-CBA-DOX did not induce noticeable toxicity, which further confirmed the good biocompatibility of HA-CD and p-CBA-DOX. Also, it was found that CD44v expression can negatively influence HA uptake and, instead, when cells expressed mainly CD44s, a positive correlation between expression and uptake was observed. Other findings point to the potential clinical utility of recombinant human proteoglycan 4 (rhPRG4) as a therapeutic treatment for invasive and metastatic breast cancer. Conclusion: The development of nanopharmaceuticals delivery systems are able to control the development of tumors and represent a promising strategy to overcome issues related to the non-specific effects of conventional anticancer therapies.


2020 ◽  
Author(s):  
Markus Kuksis ◽  
Yizhuo Gao ◽  
William Tran ◽  
Christianne Hoey ◽  
Alex Kiss ◽  
...  

Abstract Background Patients with metastatic breast cancer (MBC) are living longer, but development of brain metastases often limits their survival. We conducted a systematic review and meta-analysis to determine the incidence of brain metastases in this patient population. Methods Articles published from January 2000 to January 2020 were compiled from four databases using search terms related to: breast cancer, brain metastasis, and incidence. The overall and per patient-year incidence of brain metastases were extracted from studies including patients with HER2+, triple negative, and hormone receptor (HR)+/HER2- MBC; pooled overall estimates for incidence were calculated using random effects models. Results 937 articles were compiled, and 25 were included in the meta-analysis. Incidence of brain metastases in patients with HER2+ MBC, triple negative MBC, and HR+/HER2- MBC was reported in 17, 6, and 4 studies, respectively. The pooled cumulative incidence of brain metastases was 31% for the HER2+ subgroup (median follow-up: 30.7 months, IQR: 24.0 – 34.0), 32% for the triple negative subgroup (median follow-up: 32.8 months, IQR: 18.5 – 40.6), and 15% among patients with HR+/HER2- MBC (median follow-up: 33.0 months, IQR: 31.9 – 36.2). The corresponding incidences per patient-year were 0.13 (95% CI: 0.10 – 0.16) for the HER2+ subgroup, 0.13 (95%CI: 0.09 – 0.20) for the triple negative subgroup, and only 0.05 (95%CI: 0.03 – 0.08) for patients with HR+/HER2- MBC. Conclusion There is high incidence of brain metastases among patients with HER2+ and triple negative MBC. The utility of a brain metastases screening program warrants investigation in these populations.



2021 ◽  
Vol 11 (6) ◽  
pp. 2531
Author(s):  
Vincenzo Quinzi ◽  
Licia Coceani Paskay ◽  
Nicola D’Andrea ◽  
Arianna Albani ◽  
Annalisa Monaco ◽  
...  

Background: This study is a systematic literature review aiming at identifying the variation of the average nasolabial angle (NLA) in various orthodontic situations. The NLA is one of the key factors to be studied in an orthodontic diagnosis for the aesthetics of the nose and facial profile. Methods: Out of 3118 articles resulting from four search engines (PubMed, Cochrane Library, Turning Research Into Practice (TRIP) and SciELO), the final study allowed the analysis and comparison of only 26 studies. These included studies have considered the NLA in the following cases: teeth extraction, class II malocclusion, class III malocclusion, rapid palatal expansion (RPE), orthognathic surgery, and non-surgical rhinoplasty with a hyaluronic acid filler. Results: The results indicate that teeth extraction and the use of hyaluronic acid fillers significantly affect the NLA. Conclusions: This systematic review shows that a statistically significant change in NLA values occurs in: extractive treatments of all four of the first or second premolars in class I patients; in class II patients with upper maxillary protrusion; in patients with maxillary biprotrusion, except for cases of severe crowding; and in patients undergoing non-surgical rhinoplasty with a hyaluronic acid filler. Trial registration number: PROSPERO CRD42020185166



Cancers ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 1366
Author(s):  
Russell Hughes ◽  
Xinyue Chen ◽  
Natasha Cowley ◽  
Penelope D. Ottewell ◽  
Rhoda J. Hawkins ◽  
...  

Metastatic breast cancer in bone is incurable and there is an urgent need to develop new therapeutic approaches to improve survival. Key to this is understanding the mechanisms governing cancer cell survival and growth in bone, which involves interplay between malignant and accessory cell types. Here, we performed a cellular and molecular comparison of the bone microenvironment in mouse models representing either metastatic indolence or growth, to identify mechanisms regulating cancer cell survival and fate. In vivo, we show that regardless of their fate, breast cancer cells in bone occupy niches rich in osteoblastic cells. As the number of osteoblasts in bone declines, so does the ability to sustain large numbers of breast cancer cells and support metastatic outgrowth. In vitro, osteoblasts protected breast cancer cells from death induced by cell stress and signaling via gap junctions was found to provide important juxtacrine protective mechanisms between osteoblasts and both MDA-MB-231 (TNBC) and MCF7 (ER+) breast cancer cells. Combined with mathematical modelling, these findings indicate that the fate of DTCs is not controlled through the association with specific vessel subtypes. Instead, numbers of osteoblasts dictate availability of protective niches which breast cancer cells can colonize prior to stimulation of metastatic outgrowth.



2020 ◽  
Vol 107 ◽  
pp. 65-77 ◽  
Author(s):  
Akshay A. Narkhede ◽  
James H. Crenshaw ◽  
David K. Crossman ◽  
Lalita A. Shevde ◽  
Shreyas S. Rao


Breast Care ◽  
2018 ◽  
Vol 13 (5) ◽  
pp. 380-385 ◽  
Author(s):  
Freerk T. Baumann ◽  
Alexandra Reike ◽  
Michael Hallek ◽  
Joachim Wiskemann ◽  
Vanessa Reimer

Background: Secondary lymphedema (SL) is a possible side effect of breast cancer treatment. Current data describe a positive influence of exercise on upper lymphedema. This systematic review evaluates studies examining a potential preventive effect of exercise on SL incidence. Methods: A systematic literature search of PubMed, LIVIVO, and the Cochrane Library was performed. Results: 8 randomized controlled trials were included in the review. 3 studies investigated the effect of strength training, and 5 the effect of combined exercise therapy. 5 studies included participants without lymphedema at study entry, and 3 studies included both patients with and without lymphedema. The partly significant results showed that progressive strength training as well as combined dynamic exercise therapies consisting of physiotherapy, physical therapy, and/or kinesiotherapy are safe and can prevent SL. Onset as well as diagnosis of lymphedema were significantly decreased in 5 studies in the exercise group. Conclusion: All 8 studies included indicate a potential preventive effect of exercise on SL; however, further research is needed.



2016 ◽  
Vol 76 (18) ◽  
pp. 5209-5218 ◽  
Author(s):  
Shreyas S. Rao ◽  
Grace G. Bushnell ◽  
Samira M. Azarin ◽  
Graham Spicer ◽  
Brian A. Aguado ◽  
...  


2021 ◽  
Vol 11 (18) ◽  
pp. 8336
Author(s):  
Pedro Antunes ◽  
Dulce Esteves ◽  
Célia Nunes ◽  
Anabela Amarelo ◽  
José Fonseca-Moutinho ◽  
...  

Background: we conducted a systematic review and meta-analysis of randomized controlled trials (RCTs) to evaluate the efficacy of exercise training on cardiac function and circulating biomarkers outcomes among women with breast cancer (BC) receiving anthracycline or trastuzumab-containing therapy. Methods: PubMed, EMBASE, Cochrane Library, Web of Science and Scopus were searched. The primary outcome was change on left ventricular ejection fraction (LVEF). Secondary outcomes included diastolic function, strain imaging and circulating biomarkers. Results: Four RCTs were included, of those three were conducted during anthracycline and one during trastuzumab, involving 161 patients. All trials provided absolute change in LVEF (%) after a short to medium-term of treatment exposure (≤6 months). Pooled data revealed no differences in LVEF in the exercise group versus control [mean difference (MD): 2.07%; 95% CI: −0.17 to 4.34]. Similar results were observed by pooling data from the three RCTs conducted during anthracycline. Data from trials that implemented interventions with ≥36 exercise sessions (n = 3) showed a significant effect in preventing LVEF decline favoring the exercise (MD: 3.25%; 95% CI: 1.20 to 5.31). No significant changes were observed on secondary outcomes. Conclusions: exercise appears to have a beneficial effect in mitigating LVEF decline and this effect was significant for interventions with ≥36 exercise sessions.



Antibiotics ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1064
Author(s):  
Pablo Betancourt ◽  
Nadia Brocal ◽  
Eulàlia Sans-Serramitjana ◽  
Carlos Zaror

The eradication of endodontic pathogens continues to be the focus of the search for new root canal system (RCS) disinfection strategies. This scoping review provides a comprehensive synthesis of antimicrobial photodynamic therapy (aPDT) using nanoparticles (NPs) as an alternative to optimize RCS disinfection. A systematic search up to March 2021 was carried out using the MEDLINE, EMBASE, Scopus, Lilacs, Central Cochrane Library, and BBO databases. We included studies focused on evaluating the activation of NPs by aPDT in inoculated root canals of human or animal teeth or bacterial cultures in the laboratory. The selection process and data extraction were carried out by two researchers independently. A qualitative synthesis of the results was performed. A total of seventeen studies were included, of which twelve showed a substantial antibacterial efficacy, two assessed the substantivity of the disinfection effect, and three showed low cytotoxicity. No adverse effects were reported. The use of functionalized NPs with photosensitizer molecules in aPDT has been shown to be effective in reducing the bacteria count, making it a promising alternative in endodontic disinfection. Further studies are needed to assess the development of this therapy in in vivo conditions, with detailed information about the laser parameters used to allow the development of safe and standardized protocols.



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