Publications by authors named "Qing Qing Ding"

Article Synopsis
  • The study investigates the effectiveness of the anti-EGFR monoclonal antibody panitumumab combined with carboplatin and paclitaxel for treating chemotherapy-resistant triple-negative breast cancer (TNBC) patients.
  • It included 43 patients who had not sufficiently responded to prior doxorubicin and cyclophosphamide treatment, achieving a combined pathological complete response/residual cancer burden class I rate of 30.2%.
  • The results indicate that panitumumab shows promise as part of neoadjuvant therapy for TNBC, warranting further evaluation in larger clinical trials.
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Background: Trichorhinophalangeal syndrome 1 (TRPS1) expression in primary breast and other solid tumors has been investigated but its role as a marker in metastatic tumors is unclear. The objective of this study was to evaluate the sensitivity and specificity of TRPS1 as a breast cancer immunomarker in metastatic tumors that originated from breast, Müllerian, lung, gastrointestinal (GI), and pancreatic primary tumors with cell blocks from fine-needle aspiration (FNA) and effusion specimens.

Methods: Cell blocks were immunostained with anti-TRPS1 monoclonal antibody (clone EPR16171).

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Purpose: The recent findings from the DESTINY-Breast04 trial highlighted the clinical importance of distinguishing between HER2 immunohistochemistry (IHC) scores 0 and 1 + in metastatic breast cancer (BC). However, pathologist interpretation of HER2 IHC scoring is subjective, and standardized methodology is needed. We evaluated the consistency of HER2 IHC scoring among pathologists and the accuracy of digital image analysis (DIA) in interpreting HER2 IHC staining in cases of HER2-low BC.

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Algal toxins are important metabolites of toxic harmful algal blooms (HABs), and their qualitative and qualitative detection can serve as early warning indicators for toxic HABs, complementing traditional HAB monitoring and improving the accuracy of early warning. Therefore, this work took the detection of domoic acid (DA) as an example and prepared zeolitic imidazolate framework-8 (ZIF-8) with high enrichment performance and high water stability and its core-shell composite material SiO@ZIF-8 as an adsorbent filler. Density functional theory (DFT) calculations and interference experiments verified that Zn on SiO@ZIF-8 played a crucial role in enriching DA on SiO@ZIF-8.

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Article Synopsis
  • Neoadjuvant anti-PD-(L)1 therapy, specifically atezolizumab combined with nab-paclitaxel, shows improved pathological complete response (pCR) rates in patients with treatment-resistant triple-negative breast cancer (TNBC).
  • A clinical study included 37 patients who had minimal or no response to prior chemotherapy, and found a pCR/RCB-I rate of 46%, significantly higher than the historical rate of 5%.
  • The study concluded that an adaptive approach using neoadjuvant immunotherapy based on initial response should be further investigated in randomized trials, as it suggests a promising method for treating high-risk TNBC patients.
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Purpose: We evaluated he effects of molecular guided-targeted therapy for intractable cancer. Also, the epidemiology of druggable gene alterations in Chinese population was investigated.

Materials And Methods: The Long March Pathway (ClinicalTrials.

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Purpose: Metaplastic breast cancer (MpBC) is a rare subtype of breast cancer that is commonly triple-negative and poorly responsive to neoadjuvant therapy in retrospective studies.

Experimental Design: To better define clinical outcomes and correlates of response, we analyzed the rate of pathologic complete response (pCR) to neoadjuvant therapy, survival outcomes, and genomic and transcriptomic profiles of the pretreatment tumors in a prospective clinical trial (NCT02276443). A total of 211 patients with triple-negative breast cancer (TNBC), including 39 with MpBC, received doxorubicin-cyclophosphamide-based neoadjuvant therapy.

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Human epidermal growth factor receptor 2 (HER2)-positive classic invasive lobular carcinoma (ILC) is a rare entity, and its specific pathological characteristics and clinical behavior are unclear. Therefore, we retrospectively investigated the clinicopathological features of HER2-positive classic ILC and described HER2-targeted neoadjuvant chemotherapy outcome. Fourteen HER2-positive classic ILC cases were identified, their clinicopathological data were collected, and their clinical management was investigated.

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Purpose: Increasing tumor-infiltrating lymphocytes (TIL) is associated with higher rates of pathologic complete response (pCR) to neoadjuvant therapy (NAT) in patients with triple-negative breast cancer (TNBC). However, the presence of TILs does not consistently predict pCR, therefore, the current study was undertaken to more fully characterize the immune cell response and its association with pCR.

Experimental Design: We obtained pretreatment core-needle biopsies from 105 patients with stage I-III TNBC enrolled in ARTEMIS (NCT02276443) who received NAT from Oct 22, 2015 through July 24, 2018.

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Introduction: Breast conservation surgery (BCS) is the treatment of choice for unifocal, early-stage breast cancer. The ability to offer BCS to a wider subset of patients, including those with multifocal/multicentric cancer as well as extensive ductal carcinoma in situ, has emerged over time, especially in those undergoing joint oncoplastic reconstruction and those treated with neoadjuvant therapy. However, localization techniques using multiple radioactive seeds for bracketing in this patient subset have not been validated.

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Purpose: The 2018 American Society of Clinical Oncology/College of American Pathologists (ASCO/CAP) guideline on HER2 testing in breast cancer permits reclassification of cases with HER2-equivocal results by FISH. The impact of such reclassification is unclear. We sought to determine the proportion of HER2-equivocal cases that are reclassified as HER2-negative and the impact of anti-HER2 therapy on survival in HER2-equivocal cases.

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Article Synopsis
  • A stable culture environment is crucial for the optimal growth and metabolic activity of microorganisms like Schizochytrium sp. during DHA production, while intermittent feeding techniques destabilize this environment.
  • Intermittent feeding leads to fluctuations in substrate concentration and osmotic pressure, negatively impacting cell division and DHA synthesis.
  • In contrast, a continuous feeding strategy with stable substrate levels (20-25 g/L) enhances the physiological status and increases DHA productivity, achieving significant results in pilot scale trials.
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The emission factor method was used to estimate major air pollutant emissions of coal-fired power plant in the Yangtze River Delta (YRD) region of the year 2012. Results showed that emissions of SO2, NOx, dust, PM10, PM2.5 were respectively 473 238, 1 566 195, 587 713, 348 773 and 179 820 t.

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4-coumaric acid: coenzyme A ligase (4CL) gene is one of the key genes involved in the regulation of lignin metabolism and the synthesis of flavonoid and other secondary metabolites in plant, while the synthesized and polymerized lignin is deposited in cell walls and leads to thickening of secondary walls in some parenchyma cells and formation of stone cells. To better understand the variety and quantity of 4CL genes in Pyrus bretschneideri Rehd., we used the amino acid and cDNA databases of Pyrus bretschneideri Rehd.

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Multiple observations suggest that certain parasitic infections can be oncogenic. Among these, neurocysticercosis is associated with increased risk for gliomas and hematologic malignancies. We report the case of a 71-year-old woman with colocalization of a metazoan parasite, possibly cysticercosis, and a WHO grade IV neuroepithelial tumor with exclusively neuronal differentiation by immunohistochemical stains (immunopositive for synaptophysin, neurofilament protein, and Neu-N and not for GFAP, vimentin, or S100).

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Wnt/beta-catenin signaling plays an essential role in colon carcinogenesis. Galectin-3, a beta-galactoside-binding protein, has been implicated in Wnt signaling, but the precise mechanisms by which galectin-3 modulates the Wnt pathway are unknown. In the present study, we determined the effects of galectin-3 on the Wnt/beta-catenin pathway in colon cancer cells, as well as the mechanisms involved.

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