1
|
Winans T, Oaks Z, Choudhary G, Patel A, Huang N, Faludi T, Krakko D, Nolan J, Lewis J, Blair S, Lai Z, Landas SK, Middleton F, Asara JM, Chung SK, Wyman B, Azadi P, Banki K, Perl A. mTOR-dependent loss of PON1 secretion and antiphospholipid autoantibody production underlie autoimmunity-mediated cirrhosis in transaldolase deficiency. J Autoimmun 2023; 140:103112. [PMID: 37742509 PMCID: PMC10957505 DOI: 10.1016/j.jaut.2023.103112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/31/2023] [Accepted: 09/05/2023] [Indexed: 09/26/2023]
Abstract
Transaldolase deficiency predisposes to chronic liver disease progressing from cirrhosis to hepatocellular carcinoma (HCC). Transition from cirrhosis to hepatocarcinogenesis depends on mitochondrial oxidative stress, as controlled by cytosolic aldose metabolism through the pentose phosphate pathway (PPP). Progression to HCC is critically dependent on NADPH depletion and polyol buildup by aldose reductase (AR), while this enzyme protects from carbon trapping in the PPP and growth restriction in TAL deficiency. Although AR inactivation blocked susceptibility to hepatocarcinogenesis, it enhanced growth restriction, carbon trapping in the non-oxidative branch of the PPP and failed to reverse the depletion of glucose 6-phosphate (G6P) and liver cirrhosis. Here, we show that inactivation of the TAL-AR axis results in metabolic stress characterized by reduced mitophagy, enhanced overall autophagy, activation of the mechanistic target of rapamycin (mTOR), diminished glycosylation and secretion of paraoxonase 1 (PON1), production of antiphospholipid autoantibodies (aPL), loss of CD161+ NK cells, and expansion of CD38+ Ito cells, which are responsive to treatment with rapamycin in vivo. The present study thus identifies glycosylation and secretion of PON1 and aPL production as mTOR-dependent regulatory checkpoints of autoimmunity underlying liver cirrhosis in TAL deficiency.
Collapse
Affiliation(s)
- T Winans
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA; Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - Z Oaks
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA; Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - G Choudhary
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA; Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - A Patel
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA; Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - N Huang
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA; Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - T Faludi
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - D Krakko
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - J Nolan
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - J Lewis
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - Sarah Blair
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - Z Lai
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - S K Landas
- Departments of Pathology, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - F Middleton
- Departments of Neuroscience, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - J M Asara
- Division of Signal Transduction, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - S K Chung
- Faculty of Medicine, Macau University of Science and Technology, Taipa, Macau
| | - B Wyman
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA; Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - P Azadi
- University of Georgia, Athens, GA 30602, USA
| | - K Banki
- Departments of Pathology, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - A Perl
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA; Departments of Microbiology and Immunology, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA; Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA.
| |
Collapse
|
2
|
Chen H, Lin M, Jiang J, Liu M, Lai Z, Luo Y, Ye H, Chen H, Yang Z. 25P Furmonertinib plus icotinib for first-line treatment of EGFR-mutated non-small cell lung cancer. J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00279-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
|
3
|
Li H, Hou Y, Peng M, Wang L, Li J, Ning L, Lai Z, Li Y, An J. Reductive Deuteration of Acyl Chlorides for the Synthesis of α, α-Dideuterio Alcohols Using SmI 2 and D 2O. Molecules 2023; 28:molecules28010416. [PMID: 36615608 PMCID: PMC9823311 DOI: 10.3390/molecules28010416] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/19/2022] [Accepted: 12/22/2022] [Indexed: 01/06/2023]
Abstract
The synthesis of α,α-dideuterio alcohols has been achieved via single electron transfer reductive deuteration of acyl chlorides using SmI2 and D2O. This method is distinguished by its remarkable functional group tolerance and exquisite deuterium incorporation, which has also been applied to the synthesis of valuable deuterated agrochemicals and their building blocks.
Collapse
Affiliation(s)
- Hengzhao Li
- Department of Nutrition and Health, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Yuxia Hou
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Mengqi Peng
- Department of Nutrition and Health, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Lijun Wang
- Department of Nutrition and Health, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Junyu Li
- Department of Nutrition and Health, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Lei Ning
- Department of Nutrition and Health, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Zemin Lai
- Department of Nutrition and Health, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Yixuan Li
- Department of Nutrition and Health, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
- Correspondence: (Y.L.); (J.A.)
| | - Jie An
- Department of Nutrition and Health, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
- Correspondence: (Y.L.); (J.A.)
| |
Collapse
|
4
|
Cho B, Luft A, Alatorre Alexander J, Lucien Geater S, Laktionov K, Sang-We K, Ursol G, Hussein M, Lim Farah L, Yang C, Araujo L, Saito H, Reinmuth N, Lai Z, Mann H, Shi X, Peters S, Garon E, Mok T, Johnson M. 326P Durvalumab (D) ± tremelimumab (T) + chemotherapy (CT) in 1L metastatic (m) NSCLC: Overall survival (OS) update from POSEIDON after median follow-up (mFU) of approximately 4 years (y). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
|
5
|
Ahn MJ, Spigel D, Bondarenko I, Kalinka E, Cho B, Sugawara S, Galffy G, Shim B, Kislov N, Nagarkar R, Demedts I, Gans S, Oliva D, Stewart R, Lai Z, Grainger E, Shi X, Hussein M. P1.15-11 Durvalumab + Olaparib vs Durvalumab Alone as Maintenance Therapy in Metastatic NSCLC: Outcomes from the Phase 2 ORION Study. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
6
|
Peters S, Cho B, Luft A, Alatorre-Alexander J, Geater S, Kim SW, Ursol G, Hussein M, Lim F, Yang CT, Araujo L, Saito H, Reinmuth N, Stewart R, Lai Z, Doake R, Krug L, Garon E, Mok T, Johnson M. OA15.04 Association Between KRAS/STK11/KEAP1 Mutations and Outcomes in POSEIDON: Durvalumab ± Tremelimumab + Chemotherapy in mNSCLC. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
7
|
Li H, Lai Z, Peng M, Ning L, Dong Q, Hou Y, An J. One-Pot Sequential Hydrogen Isotope Exchange/Reductive Deuteration for the Preparation of α,β-Deuterated Alcohols using Deuterium Oxide. Org Lett 2022; 24:5319-5323. [PMID: 35856804 DOI: 10.1021/acs.orglett.2c01940] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient one-pot sequential hydrogen isotope exchange (HIE)/reductive deuteration approach was developed for the preparation of α,β-deuterated alcohols using ketones as the precursors. The HIE step can also be used for the synthesis of α-deuterated ketones. This method has been applied in the synthesis of four deuterated drug and MS internal standards.
Collapse
Affiliation(s)
- Hengzhao Li
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China.,Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China
| | - Zemin Lai
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| | - Mengqi Peng
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China
| | - Lei Ning
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| | - Qixin Dong
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| | - Yuxia Hou
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China
| | - Jie An
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| |
Collapse
|
8
|
Lai Z, Lin L, Zhang J, Mao S. Effects of high-grain diet feeding on mucosa-associated bacterial community and gene expression of tight junction proteins and inflammatory cytokines in the small intestine of dairy cattle. J Dairy Sci 2022; 105:6601-6615. [DOI: 10.3168/jds.2021-21355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 03/31/2022] [Indexed: 12/27/2022]
|
9
|
Garassino M, Shrestha Y, Xie M, Lai Z, Spencer S, Dalvi T, Paz-Ares L. MA16.06 Durvalumab ± Tremelimumab + Platinum-Etoposide in 1L ES-SCLC: Exploratory Analysis of HLA Genotype and Survival in CASPIAN. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
10
|
Hodgson D, Lai Z, Dearden S, Barrett JC, Harrington EA, Timms K, Lanchbury J, Wu W, Allen A, Senkus E, Domchek SM, Robson M. Analysis of mutation status and homologous recombination deficiency in tumors of patients with germline BRCA1 or BRCA2 mutations and metastatic breast cancer: OlympiAD. Ann Oncol 2021; 32:1582-1589. [PMID: 34500047 DOI: 10.1016/j.annonc.2021.08.2154] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 08/04/2021] [Accepted: 08/27/2021] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Presence of a germline BRCA1 and/or BRCA2 mutation (gBRCAm) may sensitize tumors to poly(ADP-ribose) polymerase (PARP) inhibition via inactivation of the second allele, resulting in gene-specific loss of heterozygosity (gsLOH) and homologous recombination deficiency (HRD). Here we explore whether tissue sample testing provides an additional route to germline testing to inform treatment selection for PARP inhibition. PATIENTS AND METHODS In this prespecified exploratory analysis, BRCA1 and/or BRCA2 mutations in blood samples (gBRCAm) and tumor tissue (tBRCAm) were analyzed from patients with human epidermal growth factor receptor 2 (HER2)-negative metastatic breast cancer and known gBRCAm, enrolled in the phase III OlympiAD trial. The frequency and nature of tBRCAm, HRD score status [HRD-positive (score ≥42) versus HRD-negative (score <42) using the Myriad myChoice® CDx test] and rates of gsLOH were determined, and their impact on clinical efficacy (objective response rate and progression-free survival) was explored. RESULTS Tissue samples from 161/302 patients yielded tBRCAm, HRD and gsLOH data for 143 (47%), 129 (43%) and 125 (41%) patients, respectively. Concordance between gBRCAm and tBRCAm was 99%. gsLOH was observed in 118/125 (94%) patients [BRCA1m, 73/76 (96%); BRCA2m, 45/49 (92%)]. A second mutation event was recorded for two of the three BRCA1m patients without gsLOH. The incidence of HRD-negative was 16% (21/129) and was more common for BRCA2m (versus BRCA1m) and/or for hormone receptor-positive (versus triple-negative) disease. Olaparib antitumor activity was observed irrespective of HRD score. CONCLUSIONS gBRCAm identified in patients with HER2-negative metastatic breast cancer by germline testing in blood was also identified by tumor tissue testing. gsLOH was common, indicating a high rate of biallelic inactivation in metastatic breast cancer. Olaparib activity was seen regardless of gsLOH status or HRD score. Thus, additional tumor testing to inform PARP inhibitor treatment selection may not be supported for these patients.
Collapse
Affiliation(s)
| | | | | | | | | | - K Timms
- Myriad Genetics, Salt Lake City, USA
| | | | - W Wu
- AstraZeneca, Gaithersburg, USA
| | - A Allen
- AstraZeneca, Gaithersburg, USA
| | - E Senkus
- Medical University of Gdańsk, Gdańsk, Poland
| | - S M Domchek
- Basser Center, University of Pennsylvania, Philadelphia, USA
| | - M Robson
- Memorial Sloan Kettering Cancer Center, New York, USA
| |
Collapse
|
11
|
Peters S, Rizvi N, Kuziora M, Lai Z, Shrestha Y, Dey A, Barrett J, Scheuring U, Poole L, Abbosh C, Raja R, Hellmann M. 1264P Early circulating tumour DNA (ctDNA) dynamics for predicting and monitoring response to immunotherapy (IO) vs chemotherapy (CT) in patients with 1L metastatic (m) NSCLC: Analyses from the phase III MYSTIC trial. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
|
12
|
Lo KL, Leung D, Lai Z, Li C, Ma SF, Wong J, Yuen KK, Li J, Chiu P, Mak SK, Wong J, Ng CF. Picture-in-picture video demonstration of systematic transperineal prostate biopsy. Hong Kong Med J 2021; 27:304-305. [PMID: 34413262 DOI: 10.12809/hkmj208864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- K L Lo
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong
| | - D Leung
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong
| | - Z Lai
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong
| | - C Li
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong
| | - S F Ma
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong
| | - J Wong
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong
| | - K K Yuen
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong
| | - J Li
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong
| | - P Chiu
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong
| | - S K Mak
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong
| | - J Wong
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong
| | - C F Ng
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong
| |
Collapse
|
13
|
Hou Y, Lai Z, Ning L, Li Y, An J, Li H, Li A. Synthesis of α-Deuterioalcohols by Single-Electron Umpolung Reductive Deuteration of Carbonyls Using D2O as Deuterium Source. Synlett 2021. [DOI: 10.1055/a-1523-3336] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractDeuterium incorporation can effectively stabilize the chiral centers of drug and agrochemical candidates that hampered by rapid in vivo racemization. In this work, the synthetically challenging chiral-center deuteration of alcohols has been achieved via a single-electron umpolung reductive-deuteration protocol using benign D2O as deuterium source and mild SmI2 as electron donor. The broad scope and excellent functional group tolerance of this method has been showcased by the synthesis of 43 respective α-deuterioalcohols in high yields and ≥98% deuterium incorporations. The potential application of this versatile method has been exemplified in the synthesis of 6 deuterated drug derivatives, 1 deuterated human hormone, and 3 deuterated natural products. This method using D2O is greener and more efficient compared to traditional pyrophoric-metal-deuteride-mediated reductive deuterations.
Collapse
Affiliation(s)
- Yuxia Hou
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University
| | - Zemin Lai
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University
| | - Lei Ning
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University
| | - Yixuan Li
- Department of Nutrition and Health, China Agricultural University
| | - Jie An
- Department of Nutrition and Health, China Agricultural University
| | - Hengzhao Li
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University
| | - Ailing Li
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University
| |
Collapse
|
14
|
Yang X, Wang Y, Wang W, Hu X, Zhou M, Weng J, Zhang L, Lu P, Lai Z, Wang S, Feng Q, Lu L. Tongxin formula protects H9c2 cardiomyocytes from cobalt chloride-induced hypoxic injury via inhibition of apoptosis. J Physiol Pharmacol 2021; 72. [PMID: 34810288 DOI: 10.26402/jpp.2021.3.05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 06/30/2021] [Indexed: 06/13/2023]
Abstract
In this study, the effect of the Tongxin formula (TXF) on the apoptosis of H9c2 cardiomyocytes induced by cobalt chloride (CoCl2) was investigated, and the potential mechanism was explored. A hypoxic injury model of H9c2 cardiomyocytes was established using CoCl2. The cell viability was measured using a Cell Counting Kit-8 assay. The lactate dehydrogenase (LDH) release and caspase-3 activity were measured using spectrophotometry. The apoptosis was measured via Annexin V-FITC/PI staining and flow cytometry. The changes in the mitochondrial membrane potential were examined using immunofluorescence microscopy following the loading of JC-1 probes. The expressions of apoptosis-related proteins and key proteins in the phosphatidylinositol 3-kinase/protein kinase B (PI3K/Akt) pathway were examined via immunoblotting. The different TXF concentrations studied significantly improved the percentage of viability of cardiomyocytes with hypoxic injury, and the LDH release, apoptotic rate, caspase-3 activity, and levels of cleaved caspase-3 protein were reduced in the injured cells. Additionally, the TXF group had increased mitochondrial membrane potential, upregulated expression of Bcl-2 and p-Akt proteins, and significantly reduced expression of cleaved caspase-3 protein in the cells with hypoxic injury. Moreover, in the TXF group, the treatment significantly reduced the BAX protein expression, but the difference was not statistically significant compared with the CoCl2 group. In this study, TXF regulated the expression of apoptosis-related proteins, inhibited apoptosis, increased the mitochondrial membrane potential, and alleviated damage to the mitochondrial membrane, thereby protecting the cardiomyocytes from hypoxic injury. The underlying mechanism could be related to activation of the PI3K/Akt signaling pathway and upregulation of the Bcl-2 protein.
Collapse
Affiliation(s)
- X Yang
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Y Wang
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - W Wang
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - X Hu
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - M Zhou
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - J Weng
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - L Zhang
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - P Lu
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Z Lai
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - S Wang
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Q Feng
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - L Lu
- Department of Neonatology, International Peace Maternity and Child Health Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
| |
Collapse
|
15
|
Li H, Peng M, Lai Z, Ning L, Chen X, Zhang X, Wang P, Szostak R, Szostak M, An J. Acyl fluorides as direct precursors to fluoride ketyl radicals: reductive deuteration using SmI 2 and D 2O. Chem Commun (Camb) 2021; 57:5195-5198. [PMID: 33908475 DOI: 10.1039/d1cc01381e] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly chemoselective reductive deuteration of acyl fluorides to provide α,α-dideuterio alcohols with exquisite levels of deuterium incorporation was developed using SmI2 and D2O as the deuterium source. This method introduces acyl fluorides as attractive radical precursors for the generation of reactive acyl-type fluoride ketyls that should find widespread application in many synthetic strategies involving single electron transfer processes.
Collapse
Affiliation(s)
- Hengzhao Li
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China. and Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China
| | - Mengqi Peng
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China
| | - Zemin Lai
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China
| | - Lei Ning
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China
| | - Xingyue Chen
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China
| | - Xiaoxu Zhang
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China.
| | - Pengjie Wang
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China.
| | - Roman Szostak
- Department of Chemistry, Wroclaw University, F. Joliot-Curie 14, Wroclaw 50-383, Poland
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, USA.
| | - Jie An
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China.
| |
Collapse
|
16
|
Huang SB, Thapa D, Munoz AR, Hussain SS, Yang X, Bedolla RG, Osmulski P, Gaczynska ME, Lai Z, Chiu YC, Wang LJ, Chen Y, Rivas P, Shudde C, Reddick RL, Miyamoto H, Ghosh R, Kumar AP. Androgen deprivation-induced elevated nuclear SIRT1 promotes prostate tumor cell survival by reactivation of AR signaling. Cancer Lett 2021; 505:24-36. [PMID: 33617947 DOI: 10.1016/j.canlet.2021.02.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 02/03/2021] [Accepted: 02/10/2021] [Indexed: 12/24/2022]
Abstract
The NAD+-dependent deacetylase, Sirtuin 1 (SIRT1) is involved in prostate cancer pathogenesis. However, the actual contribution is unclear as some reports propose a protective role while others suggest it is harmful. We provide evidence for a contextual role for SIRT1 in prostate cancer. Our data show that (i) mice orthotopically implanted with SIRT1-silenced LNCaP cells produced smaller tumors; (ii) SIRT1 suppression mimicked AR inhibitory effects in hormone responsive LNCaP cells; and (iii) caused significant reduction in gene signatures associated with E2F and MYC targets in AR-null PC-3 and E2F and mTORC1 signaling in castrate-resistant ARv7 positive 22Rv1 cells. Our findings further show increased nuclear SIRT1 (nSIRT1) protein under androgen-depleted relative to androgen-replete conditions in prostate cancer cell lines. Silencing SIRT1 resulted in decreased recruitment of AR to PSA enhancer selectively under androgen-deprivation conditions. Prostate cancer outcome data show that patients with higher levels of nSIRT1 progress to advanced disease relative to patients with low nSIRT1 levels. Collectively, we demonstrate that lowering SIRT1 levels potentially provides new avenues to effectively prevent prostate cancer recurrence.
Collapse
Affiliation(s)
- Shih-Bo Huang
- Department of Urology, The University of Texas Health, USA
| | - D Thapa
- Department of Urology, The University of Texas Health, USA
| | - A R Munoz
- Department of Urology, The University of Texas Health, USA
| | - S S Hussain
- Department of Urology, The University of Texas Health, USA
| | - X Yang
- Department of Urology, The University of Texas Health, USA
| | - R G Bedolla
- Department of Urology, The University of Texas Health, USA
| | - P Osmulski
- Department ofMolecular Medicine, The University of Texas Health, USA
| | - M E Gaczynska
- Department ofMolecular Medicine, The University of Texas Health, USA
| | - Z Lai
- Department ofMolecular Medicine, The University of Texas Health, USA; Greehey Children's Cancer Research Institute, San Antonio, TX, 78229, USA
| | - Yu-Chiao Chiu
- Greehey Children's Cancer Research Institute, San Antonio, TX, 78229, USA
| | - Li-Ju Wang
- Greehey Children's Cancer Research Institute, San Antonio, TX, 78229, USA
| | - Y Chen
- Department ofEpidemiology and Biostatistics, The University of Texas Health, USA; Mays Cancer Center, San Antonio, TX, 78229, USA; Greehey Children's Cancer Research Institute, San Antonio, TX, 78229, USA
| | - P Rivas
- Department of Urology, The University of Texas Health, USA
| | - C Shudde
- Department of Urology, The University of Texas Health, USA
| | - R L Reddick
- Department ofPathology, The University of Texas Health, USA
| | - H Miyamoto
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - R Ghosh
- Department of Urology, The University of Texas Health, USA; Department ofMolecular Medicine, The University of Texas Health, USA; Mays Cancer Center, San Antonio, TX, 78229, USA
| | - A P Kumar
- Department of Urology, The University of Texas Health, USA; Department ofMolecular Medicine, The University of Texas Health, USA; South Texas Veterans Health Care System, San Antonio, TX, 78229, USA; Mays Cancer Center, San Antonio, TX, 78229, USA.
| |
Collapse
|
17
|
Ning L, Li H, Lai Z, Szostak M, Chen X, Dong Y, Jin S, An J. Synthesis of α-Deuterated Primary Amines via Reductive Deuteration of Oximes Using D 2O as a Deuterium Source. J Org Chem 2021; 86:2907-2916. [PMID: 33486945 DOI: 10.1021/acs.joc.0c02829] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Selective introduction of the deuterium atom into the α-position of amines is important for the development of all types of novel deuterated drugs and agrochemicals due to the pervasive presence of amines. In this study, we report the first general single-electron-transfer reductive deuteration of both ketoximes and aldoximes using SmI2 as an electron donor and D2O as a deuterium source for the synthesis of α-deuterated primary amines with excellent levels of deuterium incorporations (>95% [D]). This protocol exhibits excellent chemoselectivity and tolerates a variety of functional groups. The potential application of this new method was showcased in the synthesis of deuterated drugs, such as rimantadine-d4, the tebufenpyrad analogue, derivatives of nabumetone and pregnenolone, and a series of building blocks for the rapid and general assembly of deuterated drugs and pesticides.
Collapse
Affiliation(s)
- Lei Ning
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China
| | - Hengzhao Li
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China
| | - Zemin Lai
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Xingyue Chen
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China
| | - Yanhong Dong
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China
| | - Shuhui Jin
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, China
| | - Jie An
- Department of Nutrition and Health, China Agricultural University, Beijing 100193, China
| |
Collapse
|
18
|
Guglielmi R, Lai Z, Raba K, van Dalum G, Wu J, Behrens B, Bhagat AAS, Knoefel WT, Neves RPL, Stoecklein NH. Technical validation of a new microfluidic device for enrichment of CTCs from large volumes of blood by using buffy coats to mimic diagnostic leukapheresis products. Sci Rep 2020; 10:20312. [PMID: 33219265 PMCID: PMC7680114 DOI: 10.1038/s41598-020-77227-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 10/29/2020] [Indexed: 02/04/2023] Open
Abstract
Diagnostic leukapheresis (DLA) enables to sample larger blood volumes and increases the detection of circulating tumor cells (CTC) significantly. Nevertheless, the high excess of white blood cells (WBC) of DLA products remains a major challenge for further downstream CTC enrichment and detection. To address this problem, we tested the performance of two label-free CTC technologies for processing DLA products. For the testing purposes, we established ficollized buffy coats (BC) with a WBC composition similar to patient-derived DLA products. The mimicking-DLA samples (with up to 400 × 106 WBCs) were spiked with three different tumor cell lines and processed with two versions of a spiral microfluidic chip for label-free CTC enrichment: the commercially available ClearCell FR1 biochip and a customized DLA biochip based on a similar enrichment principle, but designed for higher throughput of cells. While the samples processed with FR1 chip displayed with increasing cell load significantly higher WBC backgrounds and decreasing cell recovery, the recovery rates of the customized DLA chip were stable, even if challenged with up to 400 × 106 WBCs (corresponding to around 120 mL peripheral blood or 10% of a DLA product). These results indicate that the further up-scalable DLA biochip has potential to process complete DLA products from 2.5 L of peripheral blood in an affordable way to enable high-volume CTC-based liquid biopsies.
Collapse
Affiliation(s)
- R Guglielmi
- Department of General, Visceral and Pediatric Surgery, University Hospital, Medical Faculty, Heinrich-Heine-University Duesseldorf, Moorenstr. 5, Bldg. 12.46, 40225, Duesseldorf, Germany
| | - Z Lai
- Biolidics Limited, Singapore, Singapore
| | - K Raba
- Institute for Transplantation Diagnostics and Cell Therapeutics, University Hospital, Medical Faculty, Heinrich-Heine-University Duesseldorf, Duesseldorf, Germany
| | - G van Dalum
- Department of General, Visceral and Pediatric Surgery, University Hospital, Medical Faculty, Heinrich-Heine-University Duesseldorf, Moorenstr. 5, Bldg. 12.46, 40225, Duesseldorf, Germany
| | - J Wu
- Department of General, Visceral and Pediatric Surgery, University Hospital, Medical Faculty, Heinrich-Heine-University Duesseldorf, Moorenstr. 5, Bldg. 12.46, 40225, Duesseldorf, Germany
| | - B Behrens
- Department of General, Visceral and Pediatric Surgery, University Hospital, Medical Faculty, Heinrich-Heine-University Duesseldorf, Moorenstr. 5, Bldg. 12.46, 40225, Duesseldorf, Germany
| | - A A S Bhagat
- Institute for Health Innovation and Technology (iHealthtech), National University of Singapore, Singapore, Singapore
- Department of Biomedical Engineering, National University of Singapore, Singapore, Singapore
| | - W T Knoefel
- Department of General, Visceral and Pediatric Surgery, University Hospital, Medical Faculty, Heinrich-Heine-University Duesseldorf, Moorenstr. 5, Bldg. 12.46, 40225, Duesseldorf, Germany
| | - R P L Neves
- Department of General, Visceral and Pediatric Surgery, University Hospital, Medical Faculty, Heinrich-Heine-University Duesseldorf, Moorenstr. 5, Bldg. 12.46, 40225, Duesseldorf, Germany
| | - N H Stoecklein
- Department of General, Visceral and Pediatric Surgery, University Hospital, Medical Faculty, Heinrich-Heine-University Duesseldorf, Moorenstr. 5, Bldg. 12.46, 40225, Duesseldorf, Germany.
| |
Collapse
|
19
|
Gong D, Qin C, Li B, Peng Y, Xie Z, Cui W, Lai Z, Nie X. Single-site laparoscopic percutaneous extraperitoneal closure (SLPEC) of hernia sac high ligation using an ordinary taper needle: a novel technique for pediatric inguinal hernia. Hernia 2020; 24:1099-1105. [PMID: 32266601 DOI: 10.1007/s10029-020-02180-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 03/25/2020] [Indexed: 01/11/2023]
Abstract
PURPOSE Laparoscopic high ligation of the internal inguinal ring is an alternative procedure for treatment of pediatric inguinal hernia (PIH), with a major trend toward increasing use of extracorporeal knotting and decreasing use of working ports. We have utilized this laparoscopic technique to treat the entire spectrum of PIH (including incarcerated cases) for more than 17 years, and the technique continues to evolve and improve. We herein report our latest modification of this minimally invasive technique, namely single-site laparoscopic percutaneous extraperitoneal closure (SLPEC) of hernia sac high ligation using an ordinary taper needle, and evaluate its safety and efficacy. METHODS From July 2016 to July 2019, 790 children with indirect PIH were treated by laparoscopic surgery. All patients underwent high ligation surgery with a modified single-site laparoscopic technique mainly performed by extracorporeal suturing with an ordinary closed-eye taper needle (1/2 arc 11 × 34). The clinical data were retrospectively analyzed. RESULTS All surgeries were successful without serious complications. A contralateral patent processus vaginalis (CPPV) was found intraoperatively and subsequently repaired in 190 patients (25.4%). The mean operative time was 15 min (8-25 min) for 557 unilateral hernias and 21 min (14-36 min) for 233 bilateral hernias. The mean postoperative stay was 20 h. Minor complications occurred in five patients (0.63%) and were managed properly, with no major impact on the final outcomes. No recurrence was noted in the patients who were followed up for 6-42 months. No obvious scar was present postoperatively. CONCLUSION Modified SLPEC of hernia sac high ligation using an ordinary taper needle for repair of indirect PIH is a safe, reliable, and minimally invasive procedure with satisfactory outcome, with no special device being needed. It is easy to learn and perform and is worthy of popularization in the clinical setting.
Collapse
Affiliation(s)
- D Gong
- Department of Pediatric Surgery, Affiliated Hexian Memorial Hospital of Southern Medical University, Guangzhou, 511400, China
| | - C Qin
- Department of Hernia and Abdominal Wall Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100043, China
| | - B Li
- Department of Pediatric Surgery, Affiliated Hexian Memorial Hospital of Southern Medical University, Guangzhou, 511400, China.
| | - Y Peng
- Department of Pediatric Surgery, Affiliated Hexian Memorial Hospital of Southern Medical University, Guangzhou, 511400, China
| | - Z Xie
- Department of Pediatric Surgery, Affiliated Hexian Memorial Hospital of Southern Medical University, Guangzhou, 511400, China
| | - W Cui
- Department of Pediatric Surgery, Affiliated Hexian Memorial Hospital of Southern Medical University, Guangzhou, 511400, China
| | - Z Lai
- Department of Pediatric Surgery, Affiliated Hexian Memorial Hospital of Southern Medical University, Guangzhou, 511400, China
| | - X Nie
- Department of Pediatric Surgery, Affiliated Hexian Memorial Hospital of Southern Medical University, Guangzhou, 511400, China
| |
Collapse
|
20
|
Li H, Hou Y, Liu C, Lai Z, Ning L, Szostak R, Szostak M, An J. Pentafluorophenyl Esters: Highly Chemoselective Ketyl Precursors for the Synthesis of α,α-Dideuterio Alcohols Using SmI2 and D2O as a Deuterium Source. Org Lett 2020; 22:1249-1253. [DOI: 10.1021/acs.orglett.9b04383] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Hengzhao Li
- College of Science, China Agricultural University, Beijing 100193, China
| | - Yuxia Hou
- College of Science, China Agricultural University, Beijing 100193, China
| | - Chengwei Liu
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Zemin Lai
- College of Science, China Agricultural University, Beijing 100193, China
| | - Lei Ning
- College of Science, China Agricultural University, Beijing 100193, China
| | - Roman Szostak
- Department of Chemistry, Wroclaw University, F. Joliot-Curie 14, Wroclaw 50-383, Poland
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Jie An
- College of Science, China Agricultural University, Beijing 100193, China
| |
Collapse
|
21
|
Gourley C, Brown J, Lai Z, Lao-Sirieix P, Elks C, McGarvey H, French T, Milenkova T, Bloomfield R, Rowe P, Hodgson D, Barrett J, Moore K, DiSilvestro P, Harrington E. Analysis of tumour samples from SOLO1: Frequency of BRCA specific loss of heterozygosity (LOH) and progression-free survival (PFS) according to homologous recombination repair deficiency (HRD)-LOH score. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz250.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
22
|
Domchek S, Postel-Vinay S, Im SA, Park Y, Delord JP, Italiano A, Alexandre J, You B, Bastian S, Krebs M, Wang D, Waqar S, Lanasa M, Angell H, Lai Z, Gresty C, Opincar L, Herbolsheimer P, Kaufman B. Phase II study of olaparib (O) and durvalumab (D) (MEDIOLA): Updated results in patients (pts) with germline BRCA-mutated (gBRCAm) metastatic breast cancer (MBC). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz253.017] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
23
|
Robson M, Lai Z, Dearden S, Barrett J, Harrington E, Timms K, Lanchbury J, Wu W, Allen A, Goessl C, Senkus E, Domchek S, Hodgson D. Analysis of BRCA genes and homologous recombination deficiency (HRD) scores in tumours from patients (pts) with metastatic breast cancer (mBC) in the OlympiAD trial. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz268.063] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
24
|
Suo F, Liu X, Li C, Yuan M, Zhang B, Wang J, Ma Y, Lai Z, Ji M. Mesoporous activated carbon from starch for superior rapid pesticides removal. Int J Biol Macromol 2018; 121:806-813. [PMID: 30340006 DOI: 10.1016/j.ijbiomac.2018.10.132] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 09/30/2018] [Accepted: 10/15/2018] [Indexed: 11/27/2022]
Abstract
Pesticides contamination of water has caused considerable concern due to the potential hazard to human health. For the first time, mesoporous activated carbon from starch (ACS) was applied to remove pesticides from water. ACS could remove 11 pesticides rapidly (shake five times). The adsorption rates of ACS (>80%) for the 11 pesticides were higher than those of other adsorbents, including commercial activated carbon (AC), graphitised carbon black (GCB), C18, and primary secondary amine adsorbent (PSA). The mechanisms of the adsorption process for pyraclostrobin were also investigated. The pseudo-second-order model could better describe the adsorption for pyraclostrobin (R2 = 0.99950). Langmuir model gave the best fit for the isotherm data (R2 = 0.99899). Our findings demonstrate that oxygen-containing functional groups, N atom and π-bonding network of benzene promoted the adsorption. The adsorption efficiency of the ACS for 11 pesticides was still over 80% after five cycles.
Collapse
Affiliation(s)
- Fengyue Suo
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China; College of Science, China Agricultural University, Beijing 100193, China
| | - Xue Liu
- College of Science, China Agricultural University, Beijing 100193, China
| | - Changsheng Li
- College of Science, China Agricultural University, Beijing 100193, China
| | - Meng Yuan
- College of Science, China Agricultural University, Beijing 100193, China
| | - Bingjie Zhang
- College of Science, China Agricultural University, Beijing 100193, China
| | - Jianli Wang
- College of Science, China Agricultural University, Beijing 100193, China
| | - Yongqiang Ma
- College of Science, China Agricultural University, Beijing 100193, China
| | - Zemin Lai
- College of Science, China Agricultural University, Beijing 100193, China
| | - Mingshan Ji
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China.
| |
Collapse
|
25
|
Liu YZ, Hodgson D, Locker G, Lai Z, Balcerzak D, Sharpe A, Barrett J, Orr M, Gutjahr T, Dougherty B, Roudier M, Shi X, Miller R, Kim W, Zeng X, Ochiai A, Im SA, Xu RH, Boku N, Bang YJ. Olaparib plus paclitaxel sensitivity in biomarker subgroups of gastric cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy269.081] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
26
|
Carr T, Adelman C, Barnicle A, Kozarewa I, Luke S, Lai Z, Menon S, Hollis S, Dougherty B, Harrington E, Barrett J, Goessl C, Saad F, Sala N, Clarke N, Hodgson D. Multimodal detection of homologous recombination repair gene mutations (HRRm) in a phase II trial of olaparib plus abiraterone in metastatic castrate resistant prostate cancer (mCRPC). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy269.095] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
27
|
Cruz C, Castroviejo-Bermejo M, Gutiérrez-Enríquez S, Llop-Guevara A, Ibrahim YH, Gris-Oliver A, Bonache S, Morancho B, Bruna A, Rueda OM, Lai Z, Polanska UM, Jones GN, Kristel P, de Bustos L, Guzman M, Rodríguez O, Grueso J, Montalban G, Caratú G, Mancuso F, Fasani R, Jiménez J, Howat WJ, Dougherty B, Vivancos A, Nuciforo P, Serres-Créixams X, Rubio IT, Oaknin A, Cadogan E, Barrett JC, Caldas C, Baselga J, Saura C, Cortés J, Arribas J, Jonkers J, Díez O, O'Connor MJ, Balmaña J, Serra V. RAD51 foci as a functional biomarker of homologous recombination repair and PARP inhibitor resistance in germline BRCA-mutated breast cancer. Ann Oncol 2018; 29:1203-1210. [PMID: 29635390 PMCID: PMC5961353 DOI: 10.1093/annonc/mdy099] [Citation(s) in RCA: 255] [Impact Index Per Article: 42.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Background BRCA1 and BRCA2 (BRCA1/2)-deficient tumors display impaired homologous recombination repair (HRR) and enhanced sensitivity to DNA damaging agents or to poly(ADP-ribose) polymerase (PARP) inhibitors (PARPi). Their efficacy in germline BRCA1/2 (gBRCA1/2)-mutated metastatic breast cancers has been recently confirmed in clinical trials. Numerous mechanisms of PARPi resistance have been described, whose clinical relevance in gBRCA-mutated breast cancer is unknown. This highlights the need to identify functional biomarkers to better predict PARPi sensitivity. Patients and methods We investigated the in vivo mechanisms of PARPi resistance in gBRCA1 patient-derived tumor xenografts (PDXs) exhibiting differential response to PARPi. Analysis included exome sequencing and immunostaining of DNA damage response proteins to functionally evaluate HRR. Findings were validated in a retrospective sample set from gBRCA1/2-cancer patients treated with PARPi. Results RAD51 nuclear foci, a surrogate marker of HRR functionality, were the only common feature in PDX and patient samples with primary or acquired PARPi resistance. Consistently, low RAD51 was associated with objective response to PARPi. Evaluation of the RAD51 biomarker in untreated tumors was feasible due to endogenous DNA damage. In PARPi-resistant gBRCA1 PDXs, genetic analysis found no in-frame secondary mutations, but BRCA1 hypomorphic proteins in 60% of the models, TP53BP1-loss in 20% and RAD51-amplification in one sample, none mutually exclusive. Conversely, one of three PARPi-resistant gBRCA2 tumors displayed BRCA2 restoration by exome sequencing. In PDXs, PARPi resistance could be reverted upon combination of a PARPi with an ataxia-telangiectasia mutated (ATM) inhibitor. Conclusion Detection of RAD51 foci in gBRCA tumors correlates with PARPi resistance regardless of the underlying mechanism restoring HRR function. This is a promising biomarker to be used in the clinic to better select patients for PARPi therapy. Our study also supports the clinical development of PARPi combinations such as those with ATM inhibitors.
Collapse
Affiliation(s)
- C Cruz
- Experimental Therapeutics Group; High Risk and Familial Cancer, Vall d'Hebron Institute of Oncology, Barcelona; Department of Medical Oncology, Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona
| | | | | | | | | | | | | | - B Morancho
- Growth Factors Laboratory, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - A Bruna
- Cancer Research UK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Cambridge
| | - O M Rueda
- Cancer Research UK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Cambridge
| | - Z Lai
- AstraZeneca, Gatehouse Park, Waltham, USA
| | - U M Polanska
- DNA Damage Response Biology Area, Oncology iMed, AstraZeneca, Cancer Research UK Cambridge Institute, Cambridge, UK
| | - G N Jones
- DNA Damage Response Biology Area, Oncology iMed, AstraZeneca, Cancer Research UK Cambridge Institute, Cambridge, UK
| | - P Kristel
- Division of Molecular Pathology and Cancer Genomics, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | | | | | | | | | | | | | | | - R Fasani
- Molecular Oncology Group, Vall d'Hebron Institute of Oncology, Barcelona
| | - J Jiménez
- Molecular Oncology Group, Vall d'Hebron Institute of Oncology, Barcelona
| | - W J Howat
- DNA Damage Response Biology Area, Oncology iMed, AstraZeneca, Cancer Research UK Cambridge Institute, Cambridge, UK
| | | | | | - P Nuciforo
- Molecular Oncology Group, Vall d'Hebron Institute of Oncology, Barcelona
| | | | - I T Rubio
- Breast Surgical Unit, Breast Cancer Center, Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona
| | - A Oaknin
- Department of Medical Oncology, Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona; Gynecological Malignancies Group, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - E Cadogan
- DNA Damage Response Biology Area, Oncology iMed, AstraZeneca, Cancer Research UK Cambridge Institute, Cambridge, UK
| | | | - C Caldas
- Department of Oncology and Cancer Research UK Cambridge Institute, Li Ka Shing Centre, University of Cambridge, Cambridge, UK; Cambridge Breast Unit, NIHR Cambridge Biomedical Research Centre and Cambridge Experimental Cancer Medicine Centre at Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - J Baselga
- Human Oncology and Pathogenesis Program (HOPP); Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA
| | - C Saura
- Department of Medical Oncology, Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona; Breast Cancer and Melanoma Group, Vall d'Hebron Institute of Oncology, Barcelona
| | - J Cortés
- Ramón y Cajal University Hospital, Madrid; Vall d'Hebron Institute of Oncology, Barcelona
| | - J Arribas
- Growth Factors Laboratory, Vall d'Hebron Institute of Oncology, Barcelona, Spain; Department of Biochemistry and Molecular Biology, Building M, Campus UAB, Bellaterra (Cerdanyola del Vallès); Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona; CIBERONC, Barcelona
| | | | - O Díez
- Oncogenetics Group; Clinical and Molecular Genetics Area, Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - M J O'Connor
- DNA Damage Response Biology Area, Oncology Innovative Medicine and Early Development Biotech Unit, AstraZeneca, Cambridge, UK
| | - J Balmaña
- High Risk and Familial Cancer, Vall d'Hebron Institute of Oncology, Barcelona; Department of Medical Oncology, Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona
| | - V Serra
- Experimental Therapeutics Group; CIBERONC, Barcelona.
| |
Collapse
|
28
|
Bueno AM, Molina M, Fielding A, Bertran-Alamillo J, Dougherty B, Lai Z, Hodgson D, de las Casas CM, Rowe P, Gil M, Spencer S, Viteri S, Lobera J, Rosell R, Hernandez AG. Disruptive mutations in TP53 associate with survival benefit in a PARPi trial in ovarian cancer. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx440.036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
29
|
Morganstein DL, Lai Z, Spain L, Diem S, Levine D, Mace C, Gore M, Larkin J. Thyroid abnormalities following the use of cytotoxic T-lymphocyte antigen-4 and programmed death receptor protein-1 inhibitors in the treatment of melanoma. Clin Endocrinol (Oxf) 2017; 86:614-620. [PMID: 28028828 DOI: 10.1111/cen.13297] [Citation(s) in RCA: 134] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 11/14/2016] [Accepted: 12/20/2016] [Indexed: 01/21/2023]
Abstract
CONTEXT Checkpoint inhibitors are emerging as important cancer therapies but are associated with a high rate of immune side effects, including endocrinopathy. OBJECTIVE To determine the burden of thyroid dysfunction in patients with melanoma treated with immune checkpoint inhibitors and describe the clinical course. DESIGN AND PATIENTS Consecutive patients with melanoma treated with either ipilimumab, nivolumab, pembrolizumab or the combination of ipilimumab and nivolumab were identified. Baseline thyroid function tests were used to exclude those with pre-existing thyroid abnormalities, and thyroid function tests during treatment used to identify those with thyroid dysfunction. RESULTS Rates of overt thyroid dysfunction were in keeping with the published phase 3 trials. Hypothyroidism occurred in 13·0% treated with a programmed death receptor-1 (PD-1) inhibitor and 22·2% with a combination of PD-1 inhibitor and ipilimumab. Transient subclinical hyperthyroidism was observed in 13·0% treated with a PD-1 inhibitor, 15·9% following a PD-1 inhibitor, and 22·2% following combination treatment with investigations suggesting a thyroiditic mechanism rather than Graves' disease, and a high frequency of subsequent hypothyroidism. Any thyroid abnormality occurred in 23·0% following ipilimumab, 39·1% following a PD-1 inhibitor and 50% following combination treatment. Abnormal thyroid function was more common in female patients. CONCLUSION Thyroid dysfunction occurs commonly in patients with melanoma treated with immune checkpoint inhibitors, with rates, including subclinical dysfunction, occurring in up to 50%.
Collapse
Affiliation(s)
- D L Morganstein
- Skin Unit, Royal Marsden Hospital, London, UK
- Department of Endocrinology, Chelsea and Westminster Hospital, London, UK
| | - Z Lai
- Skin Unit, Royal Marsden Hospital, London, UK
- Department of Endocrinology, Chelsea and Westminster Hospital, London, UK
| | - L Spain
- Skin Unit, Royal Marsden Hospital, London, UK
| | - S Diem
- Skin Unit, Royal Marsden Hospital, London, UK
- Department of Oncology/Hematology, Cantonal Hospital St. Gallen, Switzerland, Switzerland
- Department of Oncology/Hematology, Hospital Grabs, Switzerland
| | - D Levine
- Department of Nuclear Medicine, Royal Marsden Hospital, London, UK
| | - C Mace
- Department of Endocrinology, Chelsea and Westminster Hospital, London, UK
| | - M Gore
- Skin Unit, Royal Marsden Hospital, London, UK
| | - J Larkin
- Skin Unit, Royal Marsden Hospital, London, UK
| |
Collapse
|
30
|
Huang Y, Chen F, Tang W, Lai Z, Li X. Validation of daily increment deposition and early growth of mud carp Cirrhinus molitorella. J Fish Biol 2017; 90:1517-1532. [PMID: 28105739 DOI: 10.1111/jfb.13250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 10/20/2016] [Accepted: 11/14/2016] [Indexed: 06/06/2023]
Abstract
In this study, laboratory reared Cirrhinus molitorella from hatching through to the juvenile stage were used to validate daily increment deposition. Lapilli were suitable for ageing C. molitorella. The slope of the linear relationships between increment counts and age was not significantly different from 1 (n = 258, P > 0·05), indicating that growth increments are deposited daily. The first increment following the first-feeding check formed 3 days post hatch (dph). One hundred and twenty-three juveniles, ranging from 36·4 to 84·7 mm in body length (LB ), were collected in the Pear River estuary from July to January in both 2014 and 2015 and used to estimate growth rate. The core in the lapillus, consisting of a single primordium, a diffuse area and the first-feeding band, was followed by 20 narrow and poorly contrasted daily increments. Thereafter, increments were wide and well-defined, and, finally became less distinct, but still homogenous after c. 53 dph. The mean increment width increased to the 29th increment and stayed relatively constant up to the 35th increment and then, gradually declined to the edge of the otolith. Wild juveniles were aged from 69 to 178 dph and hatched from the 15 February to 2 September. Growth rate was estimated from the adjusted linear regression of LB on age: LB = 4·37 + 0·44A (r2 = 0·60), where A = age. The radius of the core and the regularity and resolution of the increments showed some differences between reared and wild fish. These results are of value for the further study of early life traits and recruitment of C. molitorella.
Collapse
Affiliation(s)
- Y Huang
- Department of Fishery Resources and Ecology, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou 510380, China
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China
| | - F Chen
- Department of Fishery Resources and Ecology, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou 510380, China
| | - W Tang
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China
| | - Z Lai
- Department of Fishery Resources and Ecology, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou 510380, China
| | - X Li
- Department of Fishery Resources and Ecology, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Science, Guangzhou 510380, China
| |
Collapse
|
31
|
O'Connor M, Odedra R, Palakurthi S, Hughes A, Lai Z, Kirschmeier P, Zeng Q, Zhou S, Dharma S, Ivanova E, Wang A, Pierce A, Yates J, Powell S, Dougherty B, Barrett J, English J, Jewsbury P, Matulonis U, Liu J. Antitumor activity of the WEE1 inhibitor AZD1775 as a monotherapy and in combination with the PARP inhibitor olaparib in patient-derived explant (PDX) models. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)33023-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
32
|
La Noce A, Lai Z. AB0298 Current Status of Clinical Development of Anti-TNF Biosimilars: Main Characteristics and Current Trends of Phase III Trials. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
33
|
Hong Q, Guo Q, Wang W, Zhang Y, Wang Q, Lai Z. Study on female breast cancer imaging screening consultation network in Guangdong Province, China. EUR J GYNAECOL ONCOL 2016; 37:189-193. [PMID: 27172743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE This study aimed to construct breast cancer image screening consultation network (BISCN) that connects all levels of medical institutions in Guangdong Province. MATERIALS AND METHODS Fourteen hospitals in different cities and counties (districts) of Guang-dong were selected for breast cancer screening with imaging (breast X-ray, ultrasound, and MRI). "Breast Imaging Reporting and Data System (BI-RADS)" was taken as reference to build up image data base of breast cancer screening and BISCN that is an internet-based network platform. BISCN quality control was performed to improve the diagnostic accuracy and collaboration of members. In 2011, the BISCN members underwent breast imaging diagnosis training and conducted a questionnaire survey. RESULTS BISCN allowed quick, synchronous, and accurate communication and feedback of diagnostic imaging in breast cancer among all levels of medical institutions and improved the ability of breast cancer screening in the province, as well as the detection rate of early breast cancer throughout the province, especially in the grassroot units. The survey results showed that the trainees' understanding situation of the training contents before training was 2.02 ± 1.75 points. Through the study, the participants considered that the teaching contents could solve the daily diagnose problems (2.91 ± 0.70 points), the post-training scores were improved (2.88 ± 1.23 points), and highly satisfactory with the teaching contents (2.81 ± 0.53 points). All students passed the examination and were qualified for the future. CONCLUSIONS BISCN is of good feasibility in construction and applicability in management by raising diagnosis level of breast cancer in Guangdong Province.
Collapse
|
34
|
Hodgson D, Dougherty B, Lai Z, Grinsted L, Spencer S, O'Connor M, Ho T, Robertson J, Lanchbury J, Timms K, Gutin A, Orr M, Jones H, Gilks B, Womack C, Sun J, Yelensky R, Gourley C, Ledermann J, Barrett J. 435 Candidate biomarkers of PARP inhibitor sensitivity in ovarian cancer beyond the BRCA genes. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30269-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
35
|
Esser C, Lai Z, Gleichmann E. Proliferation inhibition and CD4/CD8 thymocyte subset skewing by in vivo exposure of C57BL/6 mice to Ah receptor-binding 3,3',4,4'-tetrachlorobiphenyl. Exp Clin Immunogenet 2015; 11:75-85. [PMID: 7826668 DOI: 10.1159/000424196] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
3,3',4,4'-Tetrachlorobiphenyl (TCB) and other Ah receptor-binding xenobiotics lead to thymus atrophy and immunosuppression, the former possibly causing the latter. In order to better understand the TCB-induced events in the murine thymus, we analyzed the effects of TCB on the proliferation capacity and maturation kinetics of different thymocyte subsets in 2-week-old C57BL/6 mice (i.e. of the Ahb-1 'dioxin-sensitive' genotype). Mice were injected with a single dose of TCB, and the development of thymocytes was followed up for 10 days using flow cytometric surface marker analysis combined with measurement of DNA content by 7-amino-actinomycin D staining. Already 2 days after exposure to TCB, fewer of the more immature thymocytes (CD4-CD8-, CD4-CD8+ alpha beta TCR-) were proliferating than in thymi from control animals. Eventually this led to a severe decrease in thymus cellularity. Moreover, a shift towards the CD4-CD8+ mature subpopulation was observed. The effects were reversible, and proliferation and CD4/CD8 subset distribution returned to normal levels within the observation period. The results are in good agreement with the data obtained previously in vitro with fetal thymus organ cultures.
Collapse
Affiliation(s)
- C Esser
- Medical Institute of Environmental Hygiene, Düsseldorf, Germany
| | | | | |
Collapse
|
36
|
Lai Z, Liao H, Ip S, Yi Y, Shi S, Su J, Lai X, Su Z, Lin Z. Liquid Chromatography – Mass Spectrometry Method for the Simultaneous Determination and Confirmation of Seven Active Components in Chinese Medicine Kumu Injection. TROP J PHARM RES 2014. [DOI: 10.4314/tjpr.v13i1.20] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
37
|
Krachmarov C, Revesz K, Prattipati R, Reichman C, Lai Z, Honnen W, Li B, Derdeyn C, Pinter A. Characterization of V1V2-specific antibodies present in broadly neutralizing plasma isolated from HIV-1 infected individuals. Retrovirology 2012. [PMCID: PMC3441749 DOI: 10.1186/1742-4690-9-s2-o30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
38
|
Theis JF, de Parseval A, Honnen WJ, Phogat A, Ganapathi UC, Lai Z, Peng L, Reichman C, Moore PL, Morris L, Li Y, Hu S, Pinter A. Construction of SHIVs expressing quaternary neutralization epitopes in Env and mimicking the neutralization phenotype of typical HIV-1 isolates. Retrovirology 2012. [PMCID: PMC3441856 DOI: 10.1186/1742-4690-9-s2-p28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
39
|
Ding T, Luo A, Yang S, Lai Z, Wang Y, Shen W, Jiang J, Lu Y, Ma D, Wang S. Effects of Basal Media and Supplements on Diethylstilbestrol-Treated Immature Mouse Primary Granulosa Cell Growth and Regulation of Steroidogenesis In Vitro. Reprod Domest Anim 2011; 47:355-64. [DOI: 10.1111/j.1439-0531.2011.01879.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
40
|
Abu Qamar M, Liu ZH, Faris JD, Chao S, Edwards MC, Lai Z, Franckowiak JD, Friesen TL. A region of barley chromosome 6H harbors multiple major genes associated with net type net blotch resistance. Theor Appl Genet 2008; 117:1261-1270. [PMID: 18712341 DOI: 10.1007/s00122-008-0860-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2008] [Accepted: 07/30/2008] [Indexed: 05/26/2023]
Abstract
Net type net blotch (NTNB), caused by Pyrenophora teres f. teres Drechs., is prevalent in barley growing regions worldwide. A population of 118 doubled haploid (DH) lines developed from a cross between barley cultivars 'Rika' and 'Kombar' were used to evaluate resistance to NTNB due to their differential reaction to various isolates of P. teres f. teres. Rika was resistant to P. teres f. teres isolate 15A and susceptible to isolate 6A. Conversely, Kombar was resistant to 6A, but susceptible to 15A. A progeny isolate of a 15A x 6A cross identified as 15A x 6A#4 was virulent on both parental lines. The Rika/Kombar (RK) DH population was evaluated for disease reactions to the three isolates. Isolate 15A induced a resistant:susceptible ratio of 78:40 (R:S) whereas isolate 6A induced a resistant:susceptible ratio of 40:78. All but two lines had opposite disease reactions indicating two major resistance genes linked in repulsion. Progeny isolate 15A x 6A#4 showed a resistant:susceptible ratio of 1:117 with the one resistant line also being the single line that was resistant to both 15A and 6A. An RK F(2) population segregated in a 1:3 (R:S) ratio for both 15A and 6A indicating that resistance is recessive. Molecular markers were used to identify a region on chromosome 6H that harbors the two NTNB resistance genes. This work shows that multiple NTNB resistance genes exist at the locus on chromosome 6H, and the recombinant DH line harboring the resistance alleles from both parents will be useful for the development of NTNB-resistant barley germplasm.
Collapse
Affiliation(s)
- M Abu Qamar
- Department of Plant Pathology, Walster Hall, North Dakota State University, Fargo, ND 58105, USA
| | | | | | | | | | | | | | | |
Collapse
|
41
|
Coldren CD, Lai Z, Shragg P, Rossi E, Glidewell SC, Zuffardi O, Mattina T, Ivy DD, Curfs LM, Mattson SN, Riley EP, Treier M, Grossfeld PD. Chromosomal microarray mapping suggests a role for BSX and Neurogranin in neurocognitive and behavioral defects in the 11q terminal deletion disorder (Jacobsen syndrome). Neurogenetics 2008; 10:89-95. [PMID: 18855024 DOI: 10.1007/s10048-008-0157-x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2008] [Accepted: 09/23/2008] [Indexed: 10/21/2022]
Abstract
We performed a prospective analysis on 14 11q- patients to determine the relationship between the degree of cognitive impairment and relative deletion size. Seventeen measures of cognitive function were assessed. All nine patients with a deletion of at least 12.1 Mb had severe global cognitive impairment, with full-scale IQ <50, whereas all five patients with smaller deletions, <or=11.8 Mb, demonstrated mild cognitive impairment, with a full-scale IQ of 63 or higher (p < 0.001). Among these five patients, the two patients with the larger deletions (11.4, 11.8 Mb) had a selective impairment in freedom from distractability compared to the three patients with smaller deletions (<or=9.1 Mb). We propose the presence of a proximal critical region that contains a gene for global cognitive function and a distal critical region that contains a gene essential for auditory attention, which may be necessary for optimizing intellectual function. The proximal critical region is 300 kb and contains three annotated genes. One of these genes, BSX, encodes a brain-specific homeobox protein that in gene-targeted mice has been shown previously to have a role in regulating locomotory behavior via BSX-expressing neurons in the hypothalamus. The distal critical region, approximately 2.2 Mb, contains 18 annotated genes. One gene in this region, Neurogranin, has been demonstrated previously in mice to be critical for synapse plasticity and long-term potentiation. Taken together, our results implicate the presence of at least two loci in distal 11q that when deleted, cause global and selective deficits in neurocognitive function. These findings have important implications for genetic counseling and potential gene-specific therapies.
Collapse
Affiliation(s)
- C D Coldren
- Department of Pulmonary Medicine, University of Colorado Health Sciences Center, Denver, CO, USA
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Erskine S, Rominger C, Zappacosta F, Laquerre S, Adams J, Tummino P, Lai Z. 137 POSTER Characterization of GSK1120212 a novel allosteric inhibitor of MEK1/2. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)72069-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
43
|
Kalkunte S, Lai Z, Tewari N, Chichester C, Romero R, Padbury J, Sharma S. In vitro and in vivo evidence for lack of endovascular remodeling by third trimester trophoblasts. Placenta 2008; 29:871-8. [PMID: 18775564 DOI: 10.1016/j.placenta.2008.07.009] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2008] [Revised: 07/22/2008] [Accepted: 07/24/2008] [Indexed: 01/23/2023]
Abstract
The placental-decidual interaction through invading trophoblasts determines whether a physiological transformation of the uterine spiral arteries is established or not. Trophoblast-orchestrated artery remodeling is central to normal placentation. Dysregulated uteroplacental interaction and vascular remodeling are thought to be associated with the molecular events underlying the pathology of late pregnancy anomalies including preeclampsia. Although the exact gestational age at which trophoblast invasion ceases is not known, it remains unclear whether late pregnancy trophoblasts retain the ability to transform the uterine arteries. Here, we have developed a dual cell, in vitro culture system that mimics the vascular remodeling events during normal pregnancy. We demonstrate that first and third trimester trophoblasts respond differentially to interactive signals from endothelial cells when cultured on matrigel. Term primary trophoblasts or immortalized third trimester extravillous TCL1 trophoblasts not only fail to respond to signals from endothelial cells but also inhibit endothelial cell tube formation. In contrast, HTR8 cells, representing a first trimester trophoblast cell line with invasive properties, undergo spontaneous migration and synchronize with the endothelial cells in a capillary network. This disparity in behavior was confirmed in vivo using a matrigel plug assay. Poor expression of VEGF C and VEGF receptors coupled with high E-cadherin expression by term primary trophoblasts and TCL1 cells contributed to their restricted interactive and migratory properties. We further show that the kinase activity of VEGF R2 is essential for proactive crosstalk by HTR8 cells. This unique behavior of first trimester trophoblasts in the presence of endothelial cells offers a potential approach to study cell-cell interactions and to decipher modulatory components in the serum samples from adverse pregnancy outcomes.
Collapse
Affiliation(s)
- S Kalkunte
- Department of Pediatrics, Women and Infants Hospital, 101 Dudley Street, Providence, RI 02905, USA
| | | | | | | | | | | | | |
Collapse
|
44
|
Colon W, Lai Z, McCutchen SL, Miroy GJ, Strang C, Kelly JW. FAP mutations destabilize transthyretin facilitating conformational changes required for amyloid formation. Ciba Found Symp 2007; 199:228-38; discussion 239-42. [PMID: 8915613 DOI: 10.1002/9780470514924.ch14] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Functional transthyretin (TTR) can be transformed into amyloid by partial acid denaturation yielding a monomeric amyloidogenic intermediate which self-associates. The amyloidogenic intermediate has substantial beta-sheet structure with non-native but defined tertiary structure. pH-dependent proteolysis sensitivity studies have identified portions of TTR which become disordered and solvent-exposed in the amyloidogenic intermediate. These include the C-strand-loop D-strand portion of TTR which moves away from the core of the beta-sandwich fold. Mutations that are associated with early onset-amyloid disease (familial amyloidotic polyneuropathy; FAP) function by destabilizing tetrameric TTR in favour of the monomeric amyloidogenic intermediate which has a rearranged C-strand-loop D-strand region. In most cases the FAP mutations do not significantly alter the native folded structure, but instead act on the denaturation pathway by a mechanism that is not completely understood. Interestingly, mutations have also been characterized which strongly stabilize tetrameric TTR and make amyloid formation very difficult at pHs accessible in vivo.
Collapse
Affiliation(s)
- W Colon
- Texas A&M University, College Station 77843-3255, USA
| | | | | | | | | | | |
Collapse
|
45
|
Friesen TL, Faris JD, Lai Z, Steffenson BJ. Identification and chromosomal location of major genes for resistance to Pyrenophora teres in a doubled-haploid barley population. Genome 2007; 49:855-9. [PMID: 16936794 DOI: 10.1139/g06-024] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Net blotch, caused by Pyrenophora teres, is one of the most economically important diseases of barley worldwide. Here, we used a barley doubled-haploid population derived from the lines SM89010 and Q21861 to identify major quantitative trait loci (QTLs) associated with seedling resistance to P. teres f. teres (net-type net blotch (NTNB)) and P. teres f. maculata (spot-type net blotch (STNB)). A map consisting of simple sequence repeat (SSR) and amplified fragment length polymorphism (AFLP) markers was used to identify chromosome locations of resistance loci. Major QTLs for NTNB and STNB resistance were located on chromosomes 6H and 4H, respectively. The 6H locus (NTNB) accounted for as much as 89% of the disease variation, whereas the 4H locus (STNB resistance) accounted for 64%. The markers closely linked to the resistance gene loci will be useful for marker-assisted selection.
Collapse
Affiliation(s)
- T L Friesen
- United States Department of Agriculture-Agriculture Research Service (USDA-ARS), Cereal Crops Research Unit, Northern Crop Science Laboratory, Red River Valley Agricultural Research Center, Fargo, ND 58105, USA.
| | | | | | | |
Collapse
|
46
|
Lai Z, Livingstone K, Zou Y, Church SA, Knapp SJ, Andrews J, Rieseberg LH. Identification and mapping of SNPs from ESTs in sunflower. Theor Appl Genet 2005; 111:1532-44. [PMID: 16205907 PMCID: PMC2442914 DOI: 10.1007/s00122-005-0082-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2005] [Accepted: 08/12/2005] [Indexed: 05/04/2023]
Abstract
More than 67,000 expressed sequence tags (ESTs) have recently been generated for sunflower (Helianthus), including 44,000 from cultivated confectionery (RHA280) and oilseed (RHA801) lines of Helianthus annuus and 23,000 from drought- and salt-tolerant wild sunflowers, H. argophyllus and H. paradoxus, respectively. To create a transcript map for sunflower, we identified 605 ESTs that displayed small insertion-deletion polymorphism (SNP) variation in silico, had apparent tissue-specific expression patterns, and/or were ESTs with candidate functions in traits such as development, cell transport, metabolism, plant defense, and tolerance to abiotic stress. Primer pairs for 535 of the loci were designed from the ESTs and screened for polymorphism in recombinant inbred lines derived from a cross between the same cultivars (RHA280 x RHA801) employed for sequencing. In total, 273 of the loci amplified polymorphic products, of which 243 mapped to the 17 linkage groups previously identified for sunflower. Comparisons with previously mapped QTL revealed some cases where ESTs with putatively related functions mapped near QTLs identified in other crosses for salt tolerance and for domestication traits such as stem diameter, shattering, flowering time, and achene size.
Collapse
Affiliation(s)
- Z Lai
- Department of Biology and Center for Genomics and Bioinformatics, Indiana University, Bloomington, IN 47405, USA.
| | | | | | | | | | | | | |
Collapse
|
47
|
Perry D, Patel R, Zuniga C, Cher M, Joiner M, Lai Z, Ager J, Forman J. Combination of Fast Neutron Irradiation and Permanent Prostate Brachytherapy in Intermediate and High Risk Localized Prostate Cancer. Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
48
|
Patel R, Perry D, Maier J, Lai Z, Ager J, Bolton S, Forman J. Outcome and Toxicity of Patients with PSA Levels ≥ 20 Treated with Fast Neutron Irradiation. Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
49
|
Zhang XN, He XH, Lai Z, Yin WG, Le YP, Guo JM, Mao W, He XL, Li JC. An insertion-deletion mutation in keratin 9 in three Chinese families with epidermolytic palmoplantar keratoderma. Br J Dermatol 2005; 152:804-6. [PMID: 15840121 DOI: 10.1111/j.1365-2133.2005.06477.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
50
|
Maier J, Forman J, Turrisi A, Lai Z, Ager J, Bolton S, Perry D, Pontes E. The prognostic significance of prostate bed biopsy in patients receiving post-prostatectomy salvage irradiation. Int J Radiat Oncol Biol Phys 2004. [DOI: 10.1016/j.ijrobp.2004.07.389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|