UCPs/Zn2GeO4:Mn2+/g-C3N4 heterojunction engineered injectable thermosensitive hydrogel for oxygen independent breast cancer neoadjuvant photodynamic therapy

2021 ◽  
Author(s):  
Linchao Zhang ◽  
Manli Yang ◽  
Yishun Ji ◽  
Kefeng Xiao ◽  
Jinsheng Shi ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Photodynamic Therapy ◽  
Neoadjuvant Chemotherapy ◽  
Breast Conservation ◽  
Thermosensitive Hydrogel ◽  
Large Tumor ◽  
Tumor Mass

Neoadjuvant chemotherapy for the treatment of breast cancer can provide the option of surgery for patients with a large tumor mass or increase the rate of breast conservation.

scholarly journals Perioperative interstitial CT-based brachytherapy boost in breast cancer patients with breast conservation after neoadjuvant chemotherapy

Neoplasma ◽  
2012 ◽  
Vol 59 (05) ◽  
pp. 494-499 ◽  
Author(s):  
M. DOLEZEL ◽  
K. STASTNY ◽  
K. ODRAZKA ◽  
J. VANASEK ◽  
T. KOHLOVA ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Neoadjuvant Chemotherapy ◽  
Cancer Patients ◽  
Breast Conservation ◽  
Breast Cancer Patients ◽  
Brachytherapy Boost

An ROS-sensitive tegafur-PpIX-heterodimer-loaded in situ injectable thermosensitive hydrogel for photodynamic therapy combined with chemotherapy to enhance the tegafur-based treatment of breast cancer

2021 ◽  
Vol 9 (1) ◽  
pp. 221-237
Author(s):  
Zhiqiang Zhang ◽  
Anning Li ◽  
Xingqi Min ◽  
Qunqun Zhang ◽  
Jun Yang ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Photodynamic Therapy ◽  
Protoporphyrin Ix ◽  
Temperature Sensitive ◽  
Thermosensitive Hydrogel ◽  
Temperature Sensitive Hydrogel

A temperature-sensitive hydrogel encapsulating tegafur and protoporphyrin IX dimers could be delivered intratumorally for synergetic chemotherapy and photodynamic therapy.

Neoadjuvant chemotherapy versus adjuvant chemotherapy in breast cancer patients: Analysis of breast conserving rate and de-escalation of axillary surgery in 5,141 Korean women.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. e12531-e12531
Author(s):  
Young Joo Lee ◽  
Jisun Kim ◽  
Sung-chan Gwark
Keyword(s):  
Breast Cancer ◽  
Adjuvant Chemotherapy ◽  
Neoadjuvant Chemotherapy ◽  
Breast Conservation ◽  
Lymph Node Biopsy ◽  
Practice Change ◽  
Breast Conservation Surgery ◽  
Breast Cancer Patients ◽  
Axillary Surgery ◽  
N Stage

e12531 Background: Neoadjuvant chemotherapy (NCT) in breast cancer has several advantages such as more breast conservation surgery (BCS) rate and de-escalation of extent of axillary surgery. Actual practice change in this area compared with adjuvant chemotherapy (ACT) is not well established. Methods: We retrospectively analyzed 5,141 women diagnosed with breast cancer from 2009 to 2013, treated with chemotherapy before or after definite surgery. BCS rate and axillary surgery categories (sentinel lymph node biopsy (SNB), axillary lymphnode dissection (ALND) or SNB followed by ALND) are compared between two groups. Results: Among 5,141 patients, 3930 (76.4%) women had ACT and 1211 (23.6%) had NCT. Median age at diagnosis was 48 (range 22-83). BCR rate was lower in T2 (57.1% vs 64.1%), T3 (12.6% vs 20.9%) group between ACT vs NCT ( p=0.03, 0.001), no difference was shown in T1 and T4 tumors. SNB try (SNB only or SNB followed by ALND) rate was still higher in ACT group with cN0 (98.4% vs 95.4%), cN1 (89.3% vs 73.5%), cN2 (77.9% vs 62.1%) tumors ( p=0.001, <0.001, 0.003, respectively). SNB only rate which means that patients spared ALND, was lower in ACT group with all cN stage (cN1; 17.5% vs 29.2%, cN2; 3.2% vs 5.9%, cN3; 5.1% vs 20.5%, all p=0.000) except cN0 (95.6% vs 81.4%, p<0.001). Axillary surgery rate analyzed with pathologic N stage showed more ALNDs attempted even after achieving pathologic complete nodal response or minimal residual N disease (ypN0: 4.4% vs 27.2%, ypN0(i) & ypN1mi; 26.2% vs 57.6%, p<0.001, =0.001 respectively). In contrast however, average of total axillary nodes retrieved by cN stage were statistically lower in NCT group in clinically positive tumors (N1; 15.3 vs 12.7, N2; 19.1 vs 14.6, N3; 25.1 vs 15.6, all p<0.001). Conclusions: NCT had shown advantage to perform more BCS than ACT in T2, T3 tumors. SNB attempts in NCT was comparable to ACT. Still, patients with NCT received more aggressive axillary surgery than ACT shown by axillary surgery category irrespective of negative SNB results.

scholarly journals The response to neoadjuvant chemotherapy predicts clinical outcome and increases breast conservation in advanced breast cancer

2013 ◽  
Vol 206 (1) ◽  
pp. 2-7 ◽  
Author(s):  
Philip M. Spanheimer ◽  
Jennifer C. Carr ◽  
Alexandra Thomas ◽  
Sonia L. Sugg ◽  
Carol E.H. Scott-Conner ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Neoadjuvant Chemotherapy ◽  
Clinical Outcome ◽  
Advanced Breast Cancer ◽  
Breast Conservation ◽  
Advanced Breast ◽  
Response To Neoadjuvant Chemotherapy

Changing pattern of recurrences in patients with early HER2-positive breast cancer receiving neoadjuvant chemotherapy in the era of dual anti-HER2 therapy

2019 ◽  
Vol 95 (1121) ◽  
pp. 155-161 ◽  
Author(s):  
Joanne W Chiu ◽  
Roland Leung ◽  
Vikki Tang ◽  
Wai Yin Cheuk ◽  
Jessica Lo ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Neoadjuvant Chemotherapy ◽  
Disease Surveillance ◽  
Breast Conservation ◽  
Growth Factor Receptor ◽  
Complete Response ◽  
Her2 Positive ◽  
Tertiary Referral Centre ◽  
Her2 Positive Breast Cancer ◽  
Positive Breast Cancer

BackgroundOver the last 10 years, there has been a major treatment revolution for early human epidermal growth factor receptor 2 (HER2)–positive breast cancer. We aimed to explore the outcome of different neoadjuvant chemotherapy in a tertiary breast cancer centre with early HER2-positive breast cancer as well as factors associated with pathological complete response (pCR) and recurrence-free survival (RFS). The pattern of recurrence was also studied.MethodsThis retrospective study analysed the outcome of neoadjuvant chemotherapy during the period 2005 to 2016 in a tertiary referral centre in Hong Kong. Patients were divided into three groups according to the neoadjuvant chemotherapy they received: chemotherapy only (Chemo), chemotherapy plus trastuzumab (Chemo-H) and chemotherapy plus double anti-HER2 therapy (Chemo-DH).ResultsThere were 226 cases analysed during the study period. The rate of pCR was 5%, 26% and 60% in Chemo, Chemo-H and Chemo-DH groups, respectively (Chemo vs pooled Chemo-H/DH: p<0.0001; Chemo-H vs Chemo-DH: p<0.0001). This was accompanied by a trend of increased rate of breast conservation therapy in Chemo-DH cohort (p=0.046). Use of double anti-HER2 therapy, older age (>50 years) and hormone receptor negativity were associated with more pCR. pCR was associated with better RFS. Among those with recurrence, the proportion of patients with brain as the only site of recurrence increased remarkably with more efficacious anti-HER2 treatment (0% in Chemo, 8% in Chemo-H, 67% in Chemo-DH).ConclusionpCR remains an important predictive factor for improved RFS. In the era of dual anti-HER2 neoadjuvant therapy, brain-only recurrence poses a challenge to disease surveillance and treatment.

Sign in / Sign up

Export Citation Format

Share Document