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Iqbal S, Raja F, Cai D. A Rare Case of Embryonal Rhabdomyosarcoma of Pineal Gland in An Adult Male. Am J Clin Pathol 2023; 160:S8-S8. [DOI: https:/doi.org/10.1093/ajcp/aqad150.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024] Open
Abstract
Abstract
Introduction/Objective
Rhabdomyosarcoma (RMS), mesenchymal derived tumor, is predominantly diagnosed in the pediatric population but may present at any age. Less than 1% of all adult solid malignant cancers are sarcomas, and rhabdomyosarcoma comprises <0.001% of adult sarcomas. Primary intracranial RMS is rare and has been reported in the cerebrum, cerebellum, brainstem, and the meninges. The occurrence of a primary intracranial RMS arising from the pineal gland is exceedingly rare.
Methods/Case Report
An adult male presented to the ED with complaint of several months of headaches, progressive confusion, forgetfulness and most recently difficulty in finding words. CT scan showed a large mass arising from the pineal gland causing obstructive hydrocephalus. Subsequently, the patient underwent excisional biopsy. The histopathology examination revealed small round basophilic cells and large polygonal cells with large eccentric nuclei and prominent nucleoli, abundant eosinophilic cytoplasm containing globular paranuclear eosinophilic inclusions, characteristic of rhabdoid cells. Immunohistochemical (IHC) showed tumor cells are positive for Desmin, MyoD1, CK8/18, INI1 (hSNF5; SMARCB1) with retained nuclear expression and faint positivity for Synaptophysin and focally positivity for Neurofilament. The tumor cells showed negative staining for Pankeratin, SOX10, Oct4, SALL4, INSM1, LCA AND CD30, which excluded the possibility of Germ cell tumor and Pineoblastoma. The case was finalized as primary malignant neoplasm, consistent with Embryonal Rhabdomyosarcoma of pineal gland.
Results (if a Case Study enter NA)
NA
Conclusion
This case highlights the rare occurrence of rhabdomyosarcoma originating from the pineal gland in an adult male. Morphologic and immunohistochemical findings were consistent with embryonal rhabdomyosarcoma. Since primary rhabdomyosarcoma of the pineal gland is rare, this case contributes to the limited body of literature on such cases. It underscores the importance of considering unusual entities in intracranial tumors. The distinct morphology and the use of IHC aids in diagnosing this rare entity.
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Chen XX, Zeng MX, Cai D, Zhou HH, Wang YJ, Liu Z. Correlation between APOE4 gene and gut microbiota in Alzheimer's disease. Benef Microbes 2023; 14:349-360. [PMID: 38661357 DOI: 10.1163/18762891-20220116] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 06/07/2023] [Indexed: 04/26/2024]
Abstract
Gut microbiota (GM) dysbiosis has been increasingly associated with Alzheimer's disease (AD). However, the association between APOE4, the most common genetic risk factor for sporadic AD, and GM in AD remains unclear. In this study, we conducted a comparative analysis of the GM of participants from China and the USA, with and without APOE4 genes and with or without AD (67 AD cases, 67 control cases). Our results revealed that the GM alpha diversity was not different between groups (AD_APOE4, Control_APOE4, AD_non-APOE4, and Control_non-APOE4) (419.031 ± 143.631 vs 391.091 ± 126.081, 351.086 ± 169.174 and 386.089 ± 177.200, respectively. P > 0.05). Interestingly, individuals in the AD_APOE4 group had different bacterial compositions and bacterial biomarkers. The Kruskal-Wallis rank sum test indicated that the abundances of many bacterial species in the AD_APOE4 patients differed from those in control individuals, including decreases in unclassified_g__Escherichia-Shigella (1.763 ± 6.73, 4.429 ± 11.13, 8.245 ± 16.55, and 5.69 ± 13.91 in four groups, respectively; P < 0.05), and unclassified_g_Clostridium_sensu_stricto_1 (0.1519 ± 0.348, 2.502 ± 5.913, 0.5146 ± 0.9487, 1.063 ± 3.428 in four groups, respectively; P < 0.05), and increases in gut_metagenome_g_Faecalibacterium (2.885 ± 4.47, 2.174 ± 3.957, 0.5765 ± 1.784, 1.582 ± 2.92 in four groups, respectively. P < 0.01) and unclassified_g_Bacteroides (3.875 ± 3.738, 2.47 ± 2.748, 2.046 ± 3.674, 3.206 ± 3.446 in four groups, respectively; P < 0.05). In the KEGG pathway level 2 analysis, we identified three significant differences in relative abundances of predicted functions between AD_APOE4 and AD_non-APOE4_carrier groups: neurodegenerative diseases (0.0007 ± 0.0005 vs 0.0009 ± 0.0004; P < 0.01), metabolism (0.0240 ± 0.0003 vs 0.0250 ± 0.0003; P < 0.05), and biosynthesis of other secondary metabolites (0.0094 ± 0.0002 vs 0.0090 ± 0.0002; P < 0.05). Receiver operating characteristic curves further demonstrated an area under the curve (AUC) of 0.74 for the discrimination of AD_APOE4_carrier and AD_non-APOE4_carrier individuals.
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Meinhardt AL, McPherson M, Berg C, Cai D, Blumenfrucht M, Chang V, Zhong F. PP01.69 NSCLC with Testicular Metastasis: A Case Report. J Thorac Oncol 2023. [DOI: 10.1016/j.jtho.2022.09.095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Cai D, Onur P. An Autopsy Case Report of ARDS Caused by Tumor Lysis Syndrome in A Patient with Mantle Cell Lymphoma. Am J Clin Pathol 2022. [DOI: 10.1093/ajcp/aqac126.210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Abstract
Introduction/Objective
Acute respiratory distress syndrome (ARDS) is a type of respiratory failure caused by diffuse injury to surfactant-producing cells and fluid buildup in the alveoli. ARDS impairs lung's ability and is potentially fatal. Tumor lysis syndrome is an oncologic emergency mostly triggered by the initiation of chemotherapy causing life- threatening metabolic cascades even with preventable therapies.
Methods/Case Report
We report an autopsy case of a 71-year-old male who was referred to the Emergency Department with complaints of poor appetite, dizziness, nausea. He was found to have a white blood cell count over 1,000,000, with hemoglobulin of 7.7, platelet count of 95, uric acid 11.5, LDH 486. He was diagnosed with mantle cell lymphoma (MCL) involving peripheral blood and received Allopurinol for tumor lysis syndrome prophylaxis. He started to receive Rituximab. Soon after, he became lethargic and more hypoxemic and needed intubation. But he became pulseless and he did not recover.
Results (if a Case Study enter NA)
The autopsy revealed an extensive spread of the lymphoma to multi-organs, including the esophagus, spleen, liver, kidney, heart, prostate. Bone marrow and lymph nodes were diffusely infiltrated by atypical medium lymphocytes. Stains on lymph nodes show the atypical lymphocytes are positive for CD20, CD5, Cyclin D1, Bcl2, negative for CD23, Bcl6, with a Ki-67 proliferative index around 40%, consistent with MCL. The patient's lungs were heavy and microscopic examination confirmed ARDS.
Conclusion
We, here describe a patient with MCL who developed tumor lysis syndrome with Rituximab monotherapy and died of ARDS shortly after. It's rarely reported that tumor lysis syndrome results in fatal ARDS.
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Cai D, Wang W, Xia X, Chen M, Yang H. EP16.04-028 PHLPP2 Regulates Ferroptosis Through Nrf2 Pathway to Affected Cell Cycle and Apoptosisin Lung Squamous Cell Carcinoma. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.1136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Zhang T, Zhang W, Zhang K, Chen X, Cai D, Wang P, Pang Q. Safety and efficacy evaluation of ACT001 and WBRT treatment in patients with solid tumor and brain metastasis. J Clin Oncol 2022. [DOI: 10.1200/jco.2022.40.16_suppl.e14006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e14006 Background: Parthenolide-derived compounds, including ACT001, achieved radiation-enhancing and normal cell protection effects in pre-clinical studies through Nrf2, STAT3 and other pathways. Safety and efficacy data from 45 cancer patients with brain metastasis in a phase 1b/2a study were presented. Methods: Eligible patients with SCLC, NSCLC and other cancers complicated with more than three metastatic brain lesions (no up limit for SCLC) were randomized to placebo (Cohort C), ACT001 200mg (Cohort A) and 400mg,bid (Cohort B). Patients were treated with ACT001 or placebo in combination with WBRT (30 Gy/10f) in first two weeks followed by continuous treatment with ACT001 or placebo till disease progression. Treatment emergent adverse events (TEAEs, the primary endpoint) and survival events were monitored. TE-SAEs and OS events that happened within 3 months (for lung cancers) or 6 months (other cancers) after end of WBRT were also assessed. MRI scans were performed and evaluated in baseline, 30 and 90 days after end of WBRT during study per iRANO and RANO-BM criteria. Results: Study enrolled 22 patients with SCLC, 14 NSCLC, 7 breast cancer and 2 with other cancers. NSCLC patients were negative for EGFR, ALK and ROS1 mutations whereas breast cancer patients are negative for HER2. Patient characteristics were balanced in age, KPS and GPA scores. All subjects finished the required WBRT. As of Dec 31st, 2021, a total of 7 (9), 13 (13) and 10 (11) patients in Cohort C, A and B respectively had post-treatment MRI scans for objective response evaluation per iRANO (or RANO-BM) criteria. Of note, the patient numbers reflected those whose tumors met radiologically evaluable lesion requirements per iRANO (> 10mm) or RANO-BM criteria (≥10mm). 3 out of 7 patients (42.9%) in Cohort C, 11 out of 13 (84.6%) in Cohort A and 9 out of 10 (90.0%) patients in Cohort B presented with partial response for intracranial lesions per iRANO criteria whereas 3 out 9 (33.3%), 11 out of 13 (84.6%) and 10 out of 11 (90.9%) patients achieved a partial response per RANO-BM criteria. The increased objective response noted in two ACT001 cohorts was also associated with decreased percentage change of median SPD (sum of the products of perpendicular diameters )as compared with data in Cohort C: -66.1% (Cohort A, baseline 969.8 mm2), -72.3% (Cohort B, baseline 445.3 mm2) and -44.7% (Cohort C, baseline 506.9 mm2). There were 41, 30 and 20 WBRT-related grade 2 and 3 adverse events in Cohorts C, A and B. respectively. In total, there were 6, 4 and 2 TE-SAEs and death events reported in non-accumulative manner in Cohorts C, A and B respectively. As of this report, one year PFS for intracranial lesions has not been determined due to limited PD events. Conclusions: ACT001 seemed to ameliorate WBRT-induced adverse events and reduce intracranial burden of tumor metastasis. A pivotal study is warranted to further evaluate these effects. Clinical trial information: ChiCTR2000037739.
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Cai D, Titus P, Rana C, Zhang H, Sheckman S. Center Stack Casing Bakeout BUS Design for the NSTX-Upgrade Fusion Device. FUSION SCIENCE AND TECHNOLOGY 2021. [DOI: 10.1080/15361055.2021.1921362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Deb PQ, Hurley HJ, Bhate C, Cai D. Incidence and outcomes of primary cutaneous anaplastic large cell lymphoma: a SEER population-based study. Am J Clin Pathol 2021. [DOI: 10.1093/ajcp/aqab191.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction/Objective
Primary cutaneous anaplastic large cell lymphoma (PC-ALCL) is the second most type of cutaneous lymphoma of T cell origin. Although PC-ALCL is considered clinically indolent with an excellent overall survival rate, very few studies have examined the epidemiology and survival of this disease in significant depth. Here we have used the National Cancer Institute’s Surveillance, Epidemiology, and End Results (SEER) database to identify the cases of PC-ALCL with immunohistologic or molecular confirmation and analyzed disease-specific survival across various epidemiological factors.
Methods/Case Report
We identified patients with PC-ALCL from the SEER database from 1975 - 2017. Cases with only histological and immunohistochemical or molecular evidence of diagnosis were included in the study. Age, sex, and race-standardized incidence rates (IR) were calculated. Survival was assessed using Kaplan-Meier curves and Cox proportional hazards models.
Results (if a Case Study enter NA)
93 individuals were identified with a diagnosis of PC-ALCL. Increased age correlated significantly with the total number of cases within age groups, suggesting an associated risk. Males were significantly overrepresented in the disease population at 62%. The racial distribution of patients with PC-ALCL did not significantly differ from the racial distribution in the US. Kaplan-Meier DSS analysis was performed to assess possible influence of race, sex, age, or primary site location on the prognosis in patients with PC-ALCL. Age appears to be one of the greatest factors influencing survival, and while this trended strongly, it was not a statistically significant observation. Although males were disproportionately represented among PC-ALCL patients, sex did not affect survival. Similarly, the patient’s race had no significant effect on the length of survival. The location of the primary tumor trends towards affecting survival, and while this is quantitatively the most impressive observation, it does not reach the threshold of statistical significance.
Conclusion
We performed a comprehensive review of the clinical and epidemiological features present in PC-ALCL. We found age to be the most significant factor in the risk of development of PC-ALCL, and while our study lacks the statistical power to demonstrate it, age may also be the most significant factor in survival.
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Shkolnik E, Cai D. Characterization of A Rare Case of Vulvar Epithelioid Sarcoma with local recurrence and metastases. Am J Clin Pathol 2021. [DOI: 10.1093/ajcp/aqab191.171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction/Objective
Epithelioid sarcoma (ES) is a rare, malignant mesenchymal neoplasm that has a known tendency for local recurrence, regional lymph node involvement, and distant metastases. Two histologic variants have been recognized: classic ES also known as the distal type, and proximal-type ES (PES). The classic ES is common in young adults. It occurs more frequently in the distal upper extremities followed by the distal lower limbs and has a male prevalence of 2:1. Conversely, PES commonly involves deep tissues in the pelvic region, including the genital area. It tends to occur in older patients and follows a more aggressive clinical course. In the female genital tract, PES occurs most frequently in the vulva. The incidence of primary sarcoma of the vulva accounts for 1.5-5% of all malignant tumors, making PES a very rare incidence.
Methods/Case Report
Here we report a 60-year-old female diagnosed with vulvar epithelioid sarcoma treated with a right radical vulvectomy and bilateral inguinal lymph node dissection in 2008. In 2017, further surgery and adjuvant radiation were given for local recurrence. In 2020, the patient developed left hip pain and was found to have an expansile lytic lesion in the left proximal femur. Extensive resection was performed. Grossly the vulvar lesion was nodular with diffuse hemorrhage, degeneration, and necrosis. Microscopically, the tumor cells had large vesicular nuclei, prominent nucleoli, and abundant eosinophilic cytoplasm. Histologically, the morphology of the tumor cells are similar for the primary vulvar specimen and the bone metastases. Immunohistochemically, the tumor cells are positive for vimentin, GATA, FLI-1, SMA, SMHC, partially positive for CAM5.2, AE1/AE3, CD31, and CD163. Immunohistochemistry was negative for CDX2, CD56, S-100, TTF-1, CK5/6, CK20, P40, mammoglobin, MOC31, ER, CK7, CK903, HMB45, PAX8. A Ki-67 proliferative index was around 30-40%. NGS molecular testing detected a SMARCB1 mutation with loss of exons 1-3 and exons 7-9 supporting the diagnosis of epithelioid sarcoma.
Results (if a Case Study enter NA)
NA
Conclusion
In summary, we report a case of PES of the vulva in a 60 year old female. Grossly, the lesion was nodular with histology showing large vesicular nuclei, prominent nucleoli, and abundant eosinophilic cytoplasm. It showed loss of INI1/SMARCB1 nuclear expression. The patient is receiving further adjuvant treatment and shows no new metastases.
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Cai D, Chen S, Wu B, Chen J, Tao D, Li Z, Dong Q, Zou Y, Chen Y, Bi C, Zu D, Lu L, Fang B. Construction of multifunctional porcine acellular dermal matrix hydrogel blended with vancomycin for hemorrhage control, antibacterial action, and tissue repair in infected trauma wounds. Mater Today Bio 2021; 12:100127. [PMID: 34585135 PMCID: PMC8452890 DOI: 10.1016/j.mtbio.2021.100127] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/29/2021] [Accepted: 08/16/2021] [Indexed: 12/18/2022] Open
Abstract
Prevention of bacterial infection and reduction of hemorrhage, the primary challenges posed by trauma before hospitalization, are essential steps in prolonging the patient's life until they have been transported to a trauma center. Extracellular matrix (ECM) hydrogel is a promising biocompatible material for accelerating wound closure. However, due to the lack of antibacterial properties, this hydrogel is difficult to be applied to acute contaminated wounds. This study formulates an injectable dermal extracellular matrix hydrogel (porcine acellular dermal matrix (ADM)) as a scaffold for skin defect repair. The hydrogel combines vancomycin, an antimicrobial agent for inducing hemostasis, expediting antimicrobial activity, and promoting tissue repair. The hydrogel possesses a porous structure beneficial for the adsorption of vancomycin. The antimicrobial agent can be timely released from the hydrogel within an hour, which is less than the time taken by bacteria to infest an injury, with a cumulative release rate of approximately 80%, and thus enables a relatively fast bactericidal effect. The cytotoxicity investigation demonstrates the biocompatibility of the ADM hydrogel. Dynamic coagulation experiments reveal accelerated blood coagulation by the hydrogel. In vivo antibacterial and hemostatic experiments on a rat model indicate the healing of infected tissue and effective control of hemorrhaging by the hydrogel. Therefore, the vancomycin-loaded ADM hydrogel will be a viable biomaterial for controlling hemorrhage and preventing bacterial infections in trauma patients.
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Brailovskaia J, Zhang XC, Cai D, Lu S, Gao ZH, Margraf J. The Benefits of Physical Activity and Positive Mental Health for Reducing the Burden of COVID-19: Validation from a Cross-sectional and Longitudinal Investigation in China and Germany. Int J Ment Health Addict 2021; 21:1186-1199. [PMID: 34602914 PMCID: PMC8475893 DOI: 10.1007/s11469-021-00653-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/14/2021] [Indexed: 11/29/2022] Open
Abstract
Many people experience high burden by the outbreak of the coronavirus disease (COVID-19) and its consequences for health and everyday life. The present cross-national study investigated potential factors that can reduce the burden by COVID-19 in China and Germany. Cross-sectional and longitudinal (China: N = 474, baseline, BL: 2015, follow-up, FU: 2020; Germany: N = 359, BL: 2019, FU: 2020) data on physical activity (e.g., jogging) (BL/FU), positive mental health (PMH) (BL/FU), and burden by COVID-19 (FU) were collected via online surveys. In both countries, physical activity was positively associated with PMH, and both variables were negatively related to burden by COVID-19. Furthermore, PMH mediated the link between physical activity and burden. The mediation model was significant when physical activity and PMH were assessed at the BL, while burden was measured at the FU; and it was also significant when all variables were assessed at the FU. The present findings reveal that physical activity in combination with PMH can reduce the experience of burden by COVID-19. Conscious fostering of physical activity and PMH is supported as an effective strategy to reduce the negative impact of the pandemic outbreak on mental and physical health. Additional benefits such as increased adherence to governmental measures around COVID-19 are discussed.
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Shen L, Qian B, Xiao J, Zhu Y, Hussain S, Deng J, Peng G, Zuo Z, Zou L, Yu S, Ma X, Zhong Z, Ren Z, Wang Y, Liu H, Zhou Z, Cai D, Hu Y, Zong X, Cao S. Characterization of serum adiponectin and leptin in healthy perinatal dairy cows or cows with ketosis, and their effectson ketosis involved indices. Pol J Vet Sci 2021; 23:373-381. [PMID: 33006850 DOI: 10.24425/pjvs.2020.134681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
We investigated changes in concentrations of ADP (adiponectin), LEP (leptin), BHBA (beta-hydroxybutyric acid), NEFA (non-esterified fatty acid), Glucose (Glu) and INS (insulin) in serum of healthy perinatal dairy cows and cows with ketosis. Twenty-one healthy cows and seventeen cows with ketosis from a herd of a total 60 Holstein cows (near dry period i.e. 56 days antepartum) were selected. Blood was collected through the tail vein every 7 days, from 56 day antepartum to 56 day postpartum. Serum ADP, LEP, BHBA, NEFA, Glu, and INS concentrations were determined, and ketosis was diagnosed through serum BHBA (≥1.2 mmol/L). We showed the concentration of serum adipokines and energy balancing indices were stable during antepar- tum period. However, ADP concentration increased while LEP decreased, and there were a significant increase in cows with ketosis compared to that of in healthy cows. Serum BHBA and NEFA concentrations increased significantly at first, and then gradually decreased in both healthy cows and cows with ketosis. However, cows with ketosis showed higher concentrations of BHBA and NEFA which restored later. The serum concentration of Glu in both healthy dairy cows and cows with ketosis showed a decreasing trend. INS concentration in healthy cows was decreased while it was increased in cows with ketosis. The results reflect the extent of hypo- glycemia and lipid mobilization postpartum, suggest IR exists in cows with ketosis while serum ADP and LEP might play roles in the development of ketosis.
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Upton D, George S, Liu J, Cai D, Su SYC, Manoharan N, Foresto S, Hassall T, Tsoli M, Ziegler D. HGG-14. ACT001 – A PROMISING THERAPEUTIC FOR DIFFUSE INTRINSIC PONTINE GLIOMAS. Neuro Oncol 2021. [PMCID: PMC8168083 DOI: 10.1093/neuonc/noab090.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Diffuse Intrinsic Pontine Gliomas (DIPGs) are a subset of Diffuse Midline Gliomas (DMG) and are the most devastating of all brain tumors. There are no effective treatments and all children die of their tumor within 12-months. We performed a high-throughput drug screen with 3,570 biologically active, clinically approved compounds against a panel of DIPG cultures. Parthenolide, a compound derived from the herb T.parthenium, was found to be one of the most effective drugs tested, demonstrating significant anti-tumor activity. However, parthenolide also affected healthy cell viability and showed no in-vivo efficacy. ACT001 is a novel agent in clinical development that is a fumarate salt form of dimethylamino-micheliolide, which is semi-synthesized from parthenolide. ACT001 is blood-brain-barrier permeable and exerts an anti-tumor effect via inhibition of NF-κB and STAT3 pathways. ACT001 demonstrated potent anti-tumor activity against a panel of DIPG-neurospheres, with minimal effect on normal cells and inhibited colony formation in-vitro. To determine whether this activity could be replicated in-vivo, we tested ACT001 in a DIPG-orthotopic model. ACT001 was well tolerated and significantly improved survival of tumor-bearing animals, extending survival by 33% in ACT001 treated mice. We have initiated a Phase 1 paediatric trial of ACT001 for children with relapsed/refractory solid or CNS tumors, with an expansion cohort planned for patients with DIPG/DMG. Eleven patients have been enrolled, and the dose escalated from dose level-1 at 188mg/m2 bd to dose level-4 at 700mg/m2 bd. To date, no dose limiting or Grade 3/4 toxicities have been observed. At the highest dose level, clinical activity has been demonstrated in two patients, one with DIPG with a reduction in tumor burden, and another with DMG with H3K27M mutation with an objective radiographic and clinical response. These combined preclinical and clinical results suggest that ACT001 is an active novel therapy for patients with DIPG/DMG.
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Shi Y, Bai G, Wang P, Cai D, Chen Y, Wang P. A phase I dose-escalation study to evaluate pharmacokinetics, safety and tolerability of ACT001 in patients with advanced glioma. J Clin Oncol 2021. [DOI: 10.1200/jco.2021.39.15_suppl.2044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
2044 Background: Management of advanced gliomas including glioblastoma multiforme (GBM) remains as an unmet medical need. Here we report our clinical experience with ACT001, or dimethylamino micheliolide, a synthesized derivative from parthenolide (a natural product of sesquiterpene lactone class), in Han Chinese patients with advanced glioma. Methods: Adult patients were enrolled in a 3+3 dose escalation phase 1 study with the following pre-defined ACT001 cohorts: 100mg, 200mg, 400mg, 600mg and 900mg, twice a day (BID). Pharmacokinetics and adverse events were evaluated during the study. Imaging studies were performed using RANO criteria to assess the therapeutic afficacy. Results: 16 patients with advanced glioma were enrolled in this single agent dose escalation study including 8 primary GBM, 4 astrocytoma (grade 2-3) and 4 other advanced glioma. The median age was 49 years (range: 31-70). Safety evaluation was performed in five cohorts and 13 of the 16 subjecst were evaluable for drug tolerability analysis. ACT001 was tolerated very well and no DLT or MTD was identified. Other than grade 1 adverse reactions (AE) in most cases and grade 2 AEs in other clinical findings, no drug-related grade 3 AE was noted. Pharmacokinetic analysis indicates that there was approximately linear correlate between the drug exposure (Cmax, AUC0-t and AUC0-inf) and study drug dosages evaluated. T1/2 is 4 hours with mean Cmax increased from approximate 300ng/ml to 5000ng/ml in a dose dependent manner with no significant dose accumulation during repeated dosing challenge. Post baseline MRI scans were performed in 11 out of 16 subjects. Among these 11 subjects, 1 GBM patient had a partial response (PR) at end of cycle 2 but had disease progressed at end of cycle 4; two non-GBM patients had a stable disease (SD) lasting for 5 or 6 cycles respectively before being taken off study due to disease pregression (PD) and other 8 patients had a PD. Of note, 9 out of these 11 subjects had stable or even improved clinical performance by the time they were taken off study due to PD. Five other subjects withdrew their consents or were taken off study due to clinical disease progression. Of note, subject S12 with diffusive astrocytoma was taken off study due to PD while still with a stable clinilcal performance and stereotactic biopsies targeting the progressed lesion didn’t reveal viable tumor tissues other than presence of macrophage/microglia. This subject was still alive 666 days after being taken off study. The mode of ACT001 actions is proposed to be at least partially related to its effects on tumor immune microenvironment. Conclusions: ACT001 was safe and tolerated well in patients. Clinical response was observed including a pathologic response in a subset of patients dosed at lower dose cohorts. iRANO criteria will be used in future studies based on its impacts on tumor immune microenvitonment. Clinical trial information: ChiCTR-OIC-17013604.
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Lickliter JD, Jennens R, Lemech CR, Kichenadasse G, Cai D, Su SYC. Phase 1 dose-escalation study of ACT001 in patients with recurrent glioblastoma and other advanced solid tumors. J Clin Oncol 2021. [DOI: 10.1200/jco.2021.39.15_suppl.2037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
2037 Background: ACT001, an orally-available parthenolide derivative targeting NF-κB and STAT3 signaling pathways, has immunomodulatory effects and showed promising activity in preclinical models of glioblastoma (GBM). The updated data in this report summarizes clinical findings from this first-in-human clinical trial of ACT001 in patients with advanced solid tumors, including GBM. Methods: Eligible patients were adults with ECOG PS 0-1 and satisfactory hematologic, renal and hepatic function. Additionally, GBM patients had progressive disease despite initial radiation and temozolomide, measurable tumor and no radiation treatment within 3 months prior to enrollment. ACT001 was given orally BID until intolerance or disease progression. Dose escalation followed a standard 3+3 design. Gliomas were imaged with MRI every 8 weeks and responses assessed using RANO criteria. Results: A total of 24 patients were enrolled as of this report: 14 with primary GBM, 2 with secondary GBM, 2 with anaplastic astrocytoma, 2 with colorectal cancer and 1 with each of anaplastic oligioastrocytoma, diffuse intrinsic pontine glioma, non-small cell lung cancer and pleural epithelioid mesothelioma. Median age was 49 years old (range 32-72). ACT001 dose levels were 100 mg BID, 200 mg BID, 400 mg BID, 600 mg BID, 900 mg BID and 1200 mg BID. Study drug treatment was well tolerated with no dose-limiting toxicity or ACT001-related SAE observed. The originally-planned maximum dose of 600 mg BID and the 1200 mg BID dose were expanded to 7 and 5 patients, respectively. The plasma half life of ACT001 was approximately 3-4 hours and no accumulation was observed after multiple dosing. Cmax and AUC0-last were approximately dose linear across the evaluated dose range. Of the 19 patients with recurrent malignant gliomas, a complete remission was observed in 1 patient with GBM (ongoing 27 months from starting ACT001) and stable disease lasting ≥ 6 months was seen in 3 patients. Preliminary biomarker analysis of PBMC samples revealed a post-treatment reduction in CD4+ Treg cells at some dose levels. Conclusions: In this first-in-human phase 1 study, ACT001 was well tolerated and showed satisfactory bioavailability and preliminary evidence of anti-tumor activity in malignant glioma patients dosed at 400 mg BID or lower. A phase 1b trial in recurrent GBM patients of ACT001 at 200-400 mg BID in combination with anti-PD-1 therapy is planned. Clinical trial information: ACTRN12616000228482.
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Cai D, Wu WW, Zhang DD, Chi MY, Ma Y, Cheng D, Zhou Y, Zhao QY. [Effects of two dimensional gray-scale blood flow imaging combined with color Doppler flow imaging in guiding arterial puncture and catheterization through wounds in patients with large burns]. ZHONGHUA SHAO SHANG ZA ZHI = ZHONGHUA SHAOSHANG ZAZHI = CHINESE JOURNAL OF BURNS 2020; 36:440-445. [PMID: 32594702 DOI: 10.3760/cma.j.cn501120-20190309-00099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the effects of two dimensional gray-scale blood flow imaging (hereinafter referred to as " B-flow" ) combined with color Doppler flow imaging (CDFI) in guiding arterial puncture and catheterization through wounds in patients with large burns. Methods: Sixty-seven patients with large burns who met the inclusion criteria and hospitalized in the First Hospital of Jilin University from January 2017 to January 2019 were enrolled in the prospectively randomized control study. According to the random number table, CDFI alone group was allocated with 35 patients (23 males and 12 females) and B-flow+ CDFI group with 32 patients (22 males and 10 females), aged 19-60 and 18-58 years, respectively. According to the progress of the disease, arterial puncture and catheterization were performed in the right time. During the operation, CDFI was used alone for guidance in patients of CDFI alone group, while B-flow and CDFI were used together for guidance in patients of B-flow+ CDIF group. Based on the first time of catheterization, the catheterization location, one-time catheterization success rate, post-back stitching re-catheterization success rate, catheterization failure rate, catheterization duration, and incidences of wound sepsis, catheter-related bloodstream infection, and arterial thrombosis within post catheterization day (PCD) 3 of patients in the two groups were recorded. Data were statistically analyzed with the independent-sample t test, chi-square test or Fisher's exact probability test. Results: (1) All the patients underwent catheterization through wounds, and there was no statistically significant difference in catheterization location of patients between the two groups (χ(2)=0.574, P>0.05). The one-time catheterization success rate of patients in B-flow+ CDFI group was 81.25% (26/32), which was obviously higher than 51.43% (18/35) in CDFI alone group (χ(2)=6.594, P<0.05). The catheterization failure rate of patients in B-flow+ CDFI group was 3.12% (1/32), which was obviously lower than 20.00% (7/35) in CDFI alone group (P<0.05). The post-back stitching re-catheterization success rate of patients was similar between the two groups (χ(2)=1.029, P>0.05). (3) The catheterization duration of patients was (15.7±1.1) min in B-flow+ CDFI group, which was obviously shorter than (17.1±2.2) min in CDFI alone group (t=11.316, P<0.01). (4) Within PCD 3, the incidences of wound sepsis and catheter-related bloodstream infection of patients in CDFI alone group were 2.86% (1/35) and 0, close to 0 and 3.12% (1/32) in B-flow+ CDFI group (P>0.05); the incidence of arterial thrombosis of patients in B-flow+ CDFI group was 0, which was obviously lower than 20.00% (7/35) in CDFI alone group (P<0.05). Conclusions: Compared with CDFI alone, B-flow combined with CDFI can improve the success rate of arterial puncture and catheterization through wounds in large area burn patients, shorten the catheterization duration, and effectively reduce the incidence of arterial thrombosis after catheterization, with a good clinical application value.
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Zhang H, Cai D, Bai X. Macrophages regulate the progression of osteoarthritis. Osteoarthritis Cartilage 2020; 28:555-561. [PMID: 31982565 DOI: 10.1016/j.joca.2020.01.007] [Citation(s) in RCA: 217] [Impact Index Per Article: 54.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 01/06/2020] [Accepted: 01/10/2020] [Indexed: 02/02/2023]
Abstract
OA is now well accepted as a low-grade inflammatory disease affecting the whole joint. In addition to mechanical loading, inflammation (particularly synovitis), contributes significantly to OA. Synovial macrophages act as immune cells and are of critical importance in the symptomology and structural progression of OA. Activated macrophages are regulated by mTOR, NF-κB, JNK, PI3K/Akt and other signaling pathways, and are polarized into either M1 or M2 subtypes in OA synovial tissues, synovial fluid, and peripheral blood. The activation state and the M1/M2 ratio is highly associated with OA severity. Aside from autocrine interactions, paracrine interactions between macrophages and chondrocytes play a vital role in the initiation and development of OA by secreting inflammatory cytokines, growth factors, matrix metalloproteinases (MMPs) and tissue inhibitor of metalloproteinases (TIMPs), which lead to subsequent cartilage degradation and destruction. Treatments targeting synovial macrophages relieve pain, and protect from synovitis, cartilage damage, and osteophyte formation during OA development. Macrophage reprogramming of transformation from the M1 to M2 subtype, more than a decrease in the quantity of activated macrophages, appears to be an effective treatment option for OA. This review provides a broad understanding of the contributions of polarized macrophages to joint health and disease. Multifunctional agents with immunomodulatory effects on macrophage reprogramming can skew the inflammatory microenvironment towards a pro-chondrogenic atmosphere, and are thus, potential therapeutic options for the treatment of OA and other immune diseases.
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Cai D, Latham VM, Zhang X, Shapiro GI. Correction: Combined Depletion of Cell Cycle and Transcriptional Cyclin-Dependent Kinase Activities Induces Apoptosis in Cancer Cells. Cancer Res 2020; 80:361. [PMID: 31941678 DOI: 10.1158/0008-5472.can-19-3524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Liu CL, Dong HG, Xue K, Yang W, Liu P, Cai D, Liu X, Yang Y, Bai Z. Biosynthesis of poly-γ-glutamic acid in Escherichia coli by heterologous expression of pgsBCAE operon from Bacillus. J Appl Microbiol 2019; 128:1390-1399. [PMID: 31837088 DOI: 10.1111/jam.14552] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 11/28/2019] [Accepted: 12/09/2019] [Indexed: 01/05/2023]
Abstract
AIMS Poly-γ-glutamic acid (γ-PGA) is an excellent water-soluble biosynthesis material. To confirm the rate-limiting steps of γ-PGA biosynthesis pathway, we introduced a heterologous Bacillus strain pathway and employed an enzyme-modulated dismemberment strategy in Escherichia coli. METHODS AND RESULTS In this study, we heterologously introduced the γ-PGA biosynthesis pathway of two laboratory-preserved strains-Bacillus amyloliquefaciens FZB42 and Bacillus subtilis 168 into E. coli, and compared their γ-PGA production levels. Next, by changing the plasmid copy numbers and supplying sodium glutamate, we explored the effects of gene expression levels and concentrations of the substrate l-glutamic acid on γ-PGA production. We finally employed a two-plasmid induction system using an enzyme-modulated dismemberment of pgsBCAE operon to confirm the rate-limiting genes of the γ-PGA biosynthesis pathway. CONCLUSION Through heterologously over-expressing the genes of the γ-PGA biosynthesis pathway and exploring gene expression levels, we produced 0·77 g l-1 γ-PGA in strain RSF-EBCAE(BS). We also confirmed that the rate-limiting genes of the γ-PGA biosynthesis pathway were pgsB and pgsC. SIGNIFICANCE AND IMPACT OF THE STUDY This work is beneficial to increase γ-PGA production and study the mechanism of γ-PGA biosynthesis enzymes.
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Guo J, Xue Q, Liu K, Ge W, Liu W, Wang J, Zhang M, Li QY, Cai D, Shan C, Zhang C, Liu X, Li J. Dimethylaminomicheliolide (DMAMCL) Suppresses the Proliferation of Glioblastoma Cells via Targeting Pyruvate Kinase 2 (PKM2) and Rewiring Aerobic Glycolysis. Front Oncol 2019; 9:993. [PMID: 31632919 PMCID: PMC6783512 DOI: 10.3389/fonc.2019.00993] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Accepted: 09/16/2019] [Indexed: 12/15/2022] Open
Abstract
Glioblastoma (GBM) is the most prevalent malignant tumor in the central nervous system. Aerobic glycolysis, featured with elevated glucose consumption and lactate production, confers selective advantages on GBM by utilizing nutrients to support rapid cell proliferation and tumor growth. Pyruvate kinase 2 (PKM2), the last rate-limiting enzyme of glycolysis, is known to regulate aerobic glycolysis, and considered as a novel cancer therapeutic target. Herein, we aim to describe the cellular functions and mechanisms of a small molecular compound dimethylaminomicheliolide (DMAMCL), which has been used in clinical trials for recurrent GBM in Australia. Our results demonstrate that DMAMCL is effective on the inhibition of GBM cell proliferation and colony formation. MCL, the active metabolic form of DMAMCL, selectively binding to monomeric PKM2 and promoting its tetramerization, was also found to improve the pyruvate kinase activity of PKM2 in GBM cells. In addition, non-targeting metabolomics analysis reveals multiple metabolites involved in glycolysis, including lactate and glucose-6-phosphate, are decreased with DMAMCL treatment. The inhibitory effects of DMAMCL are observed to decrease in GBM cells upon PKM2 depletion, further confirming the importance of PKM2 in DMAMCL sensitivity. In conclusion, the activation of PKM2 by DMAMCL results in the rewiring aerobic glycolysis, which consequently suppresses the proliferation of GBM cells. Hence, DMAMCL represents a potential PKM2-targeted therapeutic agent against GBM.
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Wang Y, Chen S, Liu J, Lv P, Cai D, Zhao G. Efficient production of coenzyme Q 10 from acid hydrolysate of sweet sorghum juice by Rhodobacter sphaeroides. RSC Adv 2019; 9:22336-22342. [PMID: 35519485 PMCID: PMC9066795 DOI: 10.1039/c9ra03964c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 07/12/2019] [Indexed: 12/02/2022] Open
Abstract
In order to achieve efficient bioconversion of biomass-derived sugars, acid hydrolysate of sweet sorghum juice (SSJAH) containing abundant fermentable sugars was used for coenzyme Q10 (CoQ10) fermentation by Rhodobacter sphaeroides CQ-09-1. The synthesis of CoQ10 was facilitated when the initial concentration of total sugar was 80.00 g L-1. And the highest CoQ10 titer was obtained when the pH and temperature were maintained at 7.00 and 30.00 °C, respectively. Moreover, corn steep powder (CSP) was proved to be an efficient nitrogen & salt supplement to SSJAH. Under the optimized conditions, the titer of CoQ10 reached 141.95 mg L-1 in a fed-batch fermentation. The CoQ10 titer reported was about two times higher than that obtained in the previous study using wild strains. This process introduces a potential way to produce CoQ10 using the concept of biorefinery, while making full use of sweet sorghum juice (SSJ).
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Cai D, Harrison NA, Kling DN, Gonzalez CF, Lorca GL. Blueberries as an additive to increase the survival of Lactobacillus johnsonii N6.2 to lyophilisation. Benef Microbes 2019; 10:473-482. [PMID: 30931589 DOI: 10.3920/bm2018.0144] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Effective cultivation methods, total cost, and biomass preservation are key factors that have a significant impact on the commercialisation and effectiveness of probiotics, such as Lactobacillus. Sugar polymers, milk and whey proteins have been suggested as good additives for industrial preparations. Alternative compounds, such as phytophenols, are a more attractive option, given their potential benefits to human health. The overall goal of this study was to determine if the addition of blueberry phytophenols improves the survival of Lactobacillus johnsonii N6.2 during the freeze-drying process. The addition of blueberry aqueous extract (BAE) stimulated the growth of L. johnsonii under aerobic conditions and improved the stationary phase survival of the bacteria. Furthermore, the addition of BAE to the culture media improved the endurance of L. johnsonii N6.2 to freeze-drying stress, as well as to storage at 4 °C for up to 21 weeks. Moreover, blueberry extract performed more effectively as a lyophilising additive compared to skim milk and microencapsulation with whey protein/sodium alginate. In sum, this study demonstrates that BAE is an effective additive to increase the growth and survival of L. johnsonii N6.2 when added to the culture medium and/or used as a lyophilising preservative. Moreover, BAE or other polyphenols sources might likely enhance growth and increase survival of more probiotic lactic acid bacterial strains.
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Cai D, Rao Y, Zhan Y, Wang Q, Chen S. EngineeringBacillusfor efficient production of heterologous protein: current progress, challenge and prospect. J Appl Microbiol 2019; 126:1632-1642. [DOI: 10.1111/jam.14192] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 12/13/2018] [Accepted: 12/28/2018] [Indexed: 12/18/2022]
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Wei DC, Pan Y, Wang H, Xu WJ, Chen C, Zheng JH, Cai D. Synthesis of substituted aromatic heterocyclic sulfonyl hydrazone compounds and in vitro anti-hepatoma activity: preliminary results. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2018; 22:4720-4729. [PMID: 30058713 DOI: 10.26355/eurrev_201807_15532] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVE Hydrazone compounds and their derivatives are a kind of special Schiff bases. The multiple hydrazone compounds and their derivatives have a variety of biological activities. This study aims to report the synthesis of diverse hydrazone derivatives and to explore the potent antitumor activities. MATERIALS AND METHODS A series of aromatic heterocyclic sulfonyl hydrazones W1-W15 synthesized from hydrazine or acylhydrazine and aldehydes or ketones were estimated for their in vitro antitumor activities against human cancers. Through the spectral (FT-IR, 1H-NMR, MS) methods, the structure of the compounds was determined. Using MTT (3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide) method, the effects of different concentrations of compounds on growth inhibition and viability of HepG-2 cells were detected. RESULTS Compound W9 exhibited anti-proliferation activity with IC50 values of 63.91 μmol/L in HepG-2 cell line. In addition, mechanism studies indicated that compound W9 could distinctly prohibit the propagation of HepG-2 cells by arresting the cell cycle at G2/M and inducing apoptosis. Furthermore, we investigated the effectiveness of drug combination treatment with W9 and cis-platinum (cis-DDP) or 5-fluorouracil (5-FU) on HepG-2 cell line. CONCLUSIONS Our results indicated that W9 with synergic treatment of 5-FU or cis-DDP shows better inhibitory cell growth. The combination of the two drugs blocks HepG-2 cells in the G2/M phase. The inhibitory effect of W9 on cell apoptosis was decreased with the increase of drug concentration.
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Llabata P, Mitsuishi Y, Choi P, Torres-Diz M, Cai D, Zhang X, Sanchez-Cespedes M, Meyerson M. P3.02-086 MGA Suppresses the MYC Pathway in Lung Adenocarcinoma. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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