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Song JZ, Di YP, Ren G, Wang YJ. Analysis of prognostic factors in patients with unresected cholangiocarcinoma undergoing radiotherapy based on SEER database and the development of Nomogram. Asian J Surg 2023; 46:1077-1079. [PMID: 35987989 DOI: 10.1016/j.asjsur.2022.07.135] [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] [Received: 07/18/2022] [Accepted: 07/26/2022] [Indexed: 11/16/2022] Open
Affiliation(s)
- Jia-Zhao Song
- Hebei North University, Zhangjiakou, Hebei 075000, China
| | - Yu-Peng Di
- Department of Radiotherapy, Air Force Medical Center. PLA, Beijing 100142, China
| | - Gang Ren
- Department of Radiotherapy, Air Force Medical Center. PLA, Beijing 100142, China
| | - Ying-Jie Wang
- Department of Radiotherapy, Air Force Medical Center. PLA, Beijing 100142, China.
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Liu LH, Yan MH, Di YP, Fu ZG, Zhang XD, Li HQ. Comparison of involved-field intensity-modulated radiotherapy combined with S-1 vs radiotherapy alone for elderly patients with esophageal cancer. World J Clin Cases 2022; 10:7365-7375. [PMID: 36157997 PMCID: PMC9353918 DOI: 10.12998/wjcc.v10.i21.7365] [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] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/05/2022] [Accepted: 06/17/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND It is estimated that about 30% of esophageal cancer (EC) patients are over 70 years old. Therefore, there is less evidence on the diagnosis and management of elderly EC patients. It is important to explore how elderly EC patients benefit from radical radiochemotherapy regimens, including the target area of radiotherapy (RT), radiation dose and fraction, and choice of chemotherapy drugs.
AIM To compare the efficacy of involved-field intensity-modulated RT (IF-IMRT) combined with S-1 vs RT alone in the treatment of elderly EC patients in terms of safety, short-term response, and survival.
METHODS Thirty-four EC patients aged > 70 years were prospectively enrolled between December 2017 and December 2019. Based on the random number table, they were divided into an IF-IMRT + S-1 group and an IF-IMRT alone group, with 17 patients in each group. All patients were treated with IF-IMRT at a dose of 50.4-56 Gy in 28-30 fractions (1.8-2 Gy/fraction, 5 fractions/wk). Oral S-1 was administered concomitantly in the IF-IMRT + S-1 group for 14 consecutive days, and a second cycle was started 7 d after drug withdrawal. After RT, 4 cycles of S-1 treatment were offered as the consolidation chemotherapy. The safety, short-term response, and survival were observed after the treatment.
RESULTS As of April 2022, these 34 patients had been followed up for 15.2-32.5 mo, with a median follow-up period of 24.5 mo. Complete efficacy indicators were obtained from all the patients. The objective response rate was 88.2% vs 76.5%, respectively, in the IF-IMRT + S-1 group and the RT alone group, where as the disease control rate was 100% vs 82.4%, respectively. The incidence of adverse events including grade 1-2 fatigue, granulocytopenia, thrombocytopenia, anemia, radiation esophagitis, radiation-induced skin injury, and radiation-induced lung injury was not significantly different between these two groups, so was the incidence of the grade 3 radiation esophagitis (0% vs 5.7%). The rate of progressive disease (PD) was 52.9% (n = 9) in the IF-IMRT + S-1 group and 64.7% (n = 11) in the RT alone group. The median progression-free survival (PFS) was 23.4 mo vs 16.3 mo, and the 2-year PFS rate was 42% vs 41.2%. The median overall survival (OS) was 27.0 mo vs 23.0 mo, and the 2-year OS rate was 58.8% vs 47.1%. Multivariate analysis showed that age was a significant prognostic factor (P = 0.0019); patients aged < 75 years had a significant survival advantage over patients aged ≥ 75 years. The locations of EC also affected the prognosis. In the IF-IMRT + S-1 group, the number of chemotherapy cycles was a significant prognostic factor (P = 0.0125), and the risk of PD was significantly lower in EC patients who had received 6 cycles of chemotherapy than those who had received 2-5 cycles of chemotherapy.
CONCLUSION Compared with IF-IMRT alone, IF-IMRT + S-1 shows the benefits of preventing PD and prolonging survival without increasing adverse reactions. Therefore, this concurrent radiochemotherapy deserves clinical application.
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Affiliation(s)
- Li-Hua Liu
- Department of Radiotherapy, Heze Hospital of Traditional Chinese Medicine, Heze 274000, Shandong Province, China
| | - Mao-Hui Yan
- Department of Radiotherapy, Air Force Medical Center, Chinese People’s Liberation Army, Beijing 100142, China
| | - Yu-Peng Di
- Department of Radiotherapy, Air Force Medical Center, Chinese People’s Liberation Army, Beijing 100142, China
| | - Zhi-Guang Fu
- Department of Radiotherapy, Air Force Medical Center, Chinese People’s Liberation Army, Beijing 100142, China
| | - Xiao-Dan Zhang
- Department of Radiotherapy, Air Force Medical Center, Chinese People’s Liberation Army, Beijing 100142, China
| | - Hong-Qi Li
- Department of Radiotherapy, Air Force Medical Center, Chinese People’s Liberation Army, Beijing 100142, China
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Chen C, Deslouches B, Montelaro RC, Di YP. Enhanced efficacy of the engineered antimicrobial peptide WLBU2 via direct airway delivery in a murine model of Pseudomonas aeruginosa pneumonia. Clin Microbiol Infect 2017; 24:547.e1-547.e8. [PMID: 28882728 DOI: 10.1016/j.cmi.2017.08.029] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [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: 04/19/2017] [Revised: 07/19/2017] [Accepted: 08/23/2017] [Indexed: 01/11/2023]
Abstract
OBJECTIVES Pseudomonas aeruginosa is a common cause of pneumonia in patients with cystic fibrosis with the property to generate multidrug resistance against clinically used antibiotics. Antimicrobial peptides (AMPs) are a diverse group of effector molecules of the innate immune system that protect the host against pathogens. However, the lack of activity in common biological matrices has hampered efforts towards clinical development. In this study, we evaluated the therapeutic potential of the engineered AMP WLBU2 via direct airway delivery in a murine model of P. aeruginosa infection. METHODS The human AMPs LL37 and WLBU2 were compared for (i) antibiofilm activity using P. aeruginosa on polarized human bronchial epithelial cells, and (ii) efficacy in P. aeruginosa pneumonia in mice using intratracheal instillation of bacteria and AMPs. RESULTS WLBU2 (16 μM) prevents biofilm formation by up to 3-log compared with 1-log reduction by LL37. With a single dose of 1 μg (0.05 mg/kg) delivered intratracheally, the initial effect of LL37 was moderate and transitory, as bacterial load and inflammatory cytokines increased at 24 h with observed signs of disease such as lethargy and hypothermia, consistent with moribund state requiring euthanasia. In sharp contrast, WLBU2 reduced bacterial burden (by 2 logs) and bacteria-induced inflammation (leucocytic infiltrates, cytokine and chemokine gene expression) at 6 h and 24 h post-exposure, with no observed signs of disease or host toxicity. CONCLUSION These promising results now establish a much lower minimum therapeutic dose of WLBU2 (a net gain of 80-fold) compared with the previously reported 4 mg/kg systemic minimum therapeutic dose, with significant implications for clinical development.
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Affiliation(s)
- C Chen
- Department of Environmental and Occupational Health, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA
| | - B Deslouches
- Department of Environmental and Occupational Health, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA; Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - R C Montelaro
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Y P Di
- Department of Environmental and Occupational Health, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA.
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Wang J, Xia TY, Wang YJ, Li HQ, Li P, Wang JD, Chang DS, Liu LY, Di YP, Wang X, Wu WZ. Prospective Study of Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitors Concurrent With Individualized Radiotherapy for Patients With Locally Advanced or Metastatic Non–Small-Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2011; 81:e59-65. [DOI: 10.1016/j.ijrobp.2010.12.035] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2010] [Revised: 12/09/2010] [Accepted: 12/15/2010] [Indexed: 12/25/2022]
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Chen Y, Zhao YH, Di YP, Wu R. Characterization of human mucin 5B gene expression in airway epithelium and the genomic clone of the amino-terminal and 5'-flanking region. Am J Respir Cell Mol Biol 2001; 25:542-53. [PMID: 11713095 DOI: 10.1165/ajrcmb.25.5.4298] [Citation(s) in RCA: 98] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Human mucin (MUC) 5B gene expression in human airway epithelium was studied in both tissue sections and cultures of tracheobronchial epithelial (TBE) cells. In situ hybridization demonstrated that MUC5B message was expressed mainly in the mucous cells of submucosal glands of normal human airway tissues. Nevertheless, an elevated MUC5B message level could be seen in surface goblet cells from patients with airway diseases and inflammation. Regardless of the airway tissue sources, MUC5B message was regulated by all-trans-retinoic acid (RA) and culture conditions in both primary and passage-1 cultures of TBE cells. MUC5B message, to a lesser extent, was also found in the immortalized epithelial cell line HBE1, but not in BEAS-2B cells. To elucidate the molecular mechanism of MUC5B gene expression, a genomic clone was obtained and sequenced for the amino terminal and the 5'-flanking region of MUC5B gene. A luciferase reporter construct containing 4,169 base pairs of the 5'-flanking region of MUC5B gene demonstrated a cell type-specific basal promoter activity in transfection studies. Both RA and the air-liquid interface culture condition further enhanced this promoter activity. These results suggest that the 5'-flanking region of MUC5B gene contains cis-elements that are potentially involved in the regulation of MUC5B gene expression.
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Affiliation(s)
- Y Chen
- Center for Comparative Respiratory Biology and Medicine, Schools of Medicine and Veterinary Medicine, University of California at Davis, 95616, USA
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Soref CM, Di YP, Hayden L, Zhao YH, Satre MA, Wu R. Characterization of a novel airway epithelial cell-specific short chain alcohol dehydrogenase/reductase gene whose expression is up-regulated by retinoids and is involved in the metabolism of retinol. J Biol Chem 2001; 276:24194-202. [PMID: 11304534 DOI: 10.1074/jbc.m100332200] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Multiple retinoic acid responsive cDNAs were isolated from a high density cDNA microarray membrane, which was developed from a cDNA library of human tracheobronchial epithelial cells. Five selected cDNA clones encoded the sequence of the same novel gene. The predicted open reading frame of the novel gene encoded a protein of 319 amino acids. The deduced amino acid sequence contains four motifs that are conserved in the short-chain alcohol dehydrogenase/reductase (SDR) family of proteins. The novel gene shows the greatest homology to a group of dehydrogenases that can oxidize retinol (retinol dehydrogenases). The mRNA of the novel gene was found in trachea, colon, tongue, and esophagus. In situ hybridization of airway tissue sections demonstrated epithelial cell-specific gene expression, especially in the ciliated cell type. Both all-trans-retinoic acid and 9-cis-retinoic acid were able to elevate the expression of the novel gene in primary human tracheobronchial epithelial cells in vitro. This elevation coincided with an enhanced retinol metabolism in these cultures. COS cells transfected with an expression construct of the novel gene were also elevated in the metabolism of retinol. The results suggested that the novel gene represents a new member of the SDR family that may play a critical role in retinol metabolism in airway epithelia as well as in other epithelia of colon, tongue, and esophagus.
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Affiliation(s)
- C M Soref
- Center for Comparative Respiratory Biology and Medicine and the Department of Nutrition, University of California at Davis, 95616, USA
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Abstract
Many B and T lymphocytes display a significant heterogeneity with respect to the subcellular distribution of the cytoskeletal protein spectrin and protein kinase C (PKC), both of which often can be found in a large cytoplasmic aggregate in these cell types. In addition to spectrin and PKC, we recently have reported that HSP70 is also a component of this lymphocyte aggregate. Moreover, these three proteins can undergo dynamic and reversible changes in their localization causing "assembly" of the aggregate in response to various conditions associated with lymphocyte activation, indicating that this naturally occurring aggregate structure is sensitive to activation status. We show here that the same changes in HSP70/spectrin/PKC localization induced by PKC activation also can be caused, in vitro and in vivo, by a mild hyperthermia exposure, as occurs during a natural fever (39.5-40 degrees C, 2-12 hr). This mild heat exposure also triggers the activation of PKC, a major heat shock response, and lymphocyte proliferation. The increase in PKC activity, HSP70-spectrin-PKC aggregate formation, and heat shock protein expression resulting from exposure to fever-like hyperthermia are all inhibited by calphostin C, a specific inhibitor of PKC. These data demonstrate that changes observed during lymphocyte activation could be induced by a mild hyperthermia exposure occurring during a normal febrile episode.
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Affiliation(s)
- Y P Di
- Department of Molecular and Cellular Biology, Roswell Cancer Institute, Buffalo, New York, USA
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Reddy PM, An G, Di YP, Zhao YH, Wu R. Isolation and characterization of nucleolin gene as one of the vitamin A-responsive genes in airway epithelium by a palindromic primer-based mRNA differential display method. Am J Respir Cell Mol Biol 1996; 15:398-403. [PMID: 8810645 DOI: 10.1165/ajrcmb.15.3.8810645] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
A palindromic primer-based mRNA differential display method has been used to isolate various vitamin A-responsive genes from primary cultures of monkey tracheobronchial epithelial cells. This method, as compared with the original mRNA differential display (mDD) method described by Liang and Pardee, used only one arbitrarily designed primer instead of two in the polymerase chain reaction. The single-primer mDD method has several advantages over the two-primer mDD system, especially in the reamplification and the selection of 5'-end cDNA clone. To verify the usefulness of this approach, one of these differential display bands, M34, was initially chosen for further amplification and cloning. The clone derived from the M34 band has a DNA sequence with > 90% homology to the human nucleolin gene. Furthermore, DNA sequencing confirms that both 5' and 3' ends of the insert of M34 contain the invertly repetitive nucleotide sequence that was used to direct this cloning. Nucleolin is a multifunctional phosphoprotein that plays an important role in ribosome biogenesis and mRNA stability. Northern blot analysis demonstrated that in addition to the elevation by vitamin A, the level of nucleolin message is significantly higher in fetal than in adult tracheobronchial epithelial cultures. Furthermore, in situ hybridization demonstrated that the amount of nucleolin message is significantly higher in both basal and ciliated cell types than in mucous and intermediary cell types. These results support the feasibility that the single-primer mDD technique can be used to isolate vitamin A-responsive genes with a palindromic nature.
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Affiliation(s)
- P M Reddy
- California Regional Primate Research Center, University of California, Davis 95616, USA
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Abstract
The percentage of T and B lymphocytes expressing a distinct cytoplasmic aggregate enriched in spectrin, ankyrin, and in several other proteins including protein kinase C greatly increases following various activation protocols. Members of the 70 kDa family of heat shock proteins (hsp70) temporarily bind to and stabilize unfolded segments of other proteins, a function apparently required for proper protein folding and assembly. Considering the multiprotein and dynamic nature of the lymphocyte aggregate, the possibility that hsp70 also might be associated with components of this structure is considered here. Double immunofluorescence analysis indicates that hsp70 is a component of the lymphocyte aggregate and is coincident with spectrin in a subpopulation of freshly isolated, untreated lymphocytes from various murine tissues and in a T-lymphocyte hybridoma. When cell lysates of lymph node T cells are immunoprecipitated using an antibody against hsp70 or spectrin and then analyzed by Western blot utilizing the alternate antibody, it was found that hsp70 and spectrin coprecipitated with one another. Moreover, this coprecipitation could be abolished by addition of ATP. This latter observation was extended to lymphoid cells using a transient permeabilization procedure, and it was shown that addition of exogenous ATP results in the dissipation of the aggregate structure itself. Finally, conditions that result in T-cell activation and aggregate formation, i.e., treatment with the phorbol ester PMA or T-cell receptor cross-linking, also lead to the repositioning of hsp70 into the aggregate from a membrane/cytosolic locale in congruence with spectrin. These data suggest that hsp70 is an active component of the aggregate and that it may function in the interactions believed to occur in this unique activation-associated organelle.
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Affiliation(s)
- Y P Di
- Department of Molecular and Cellular Biology, Roswell Park Cancer Institute, Buffalo, New York 14263, USA
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Lin HY, Masso-Welch P, Di YP, Cai JW, Shen JW, Subjeck JR. The 170-kDa glucose-regulated stress protein is an endoplasmic reticulum protein that binds immunoglobulin. Mol Biol Cell 1993; 4:1109-19. [PMID: 8305733 PMCID: PMC275747 DOI: 10.1091/mbc.4.11.1109] [Citation(s) in RCA: 129] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Anoxia, glucose starvation, calcium ionophore A23187, EDTA, glucosamine, and several other conditions that adversely affect the function of the endoplasmic reticulum (ER) induce the synthesis of the glucose-regulated class of stress proteins (GRPs). The primary GRPs induced by these stresses migrate at 78 and 94 kDa (GRP78 and GRP94). In addition, another protein of approximately 150-170 kDa (GRP170) has been previously observed and is coordinately induced with GRP78 and GRP94. To characterize this novel stress protein, we have prepared an antisera against purified GRP170. Immunofluorescence, Endoglycosidase H sensitivity, and protease resistance of this protein in microsomes indicates that GRP170 is an ER lumenal glycoprotein retained in a pre-Golgi compartment. Immunoprecipitation of GRP170 with our antibody coprecipitates the GRP78 (also referred to as the B cell immunoglobulin-binding protein) and GRP94 members of this stress protein family in Chinese hamster ovary cells under stress conditions. ATP depletion, by immunoprecipitation in the presence of apyrase, does not affect the interaction between GRP78 and GRP170 but results in the coprecipitation of an unidentified 60-kDa protein. In addition, GRP170 is found to be coprecipitated with immunoglobulin (Ig) in four different B cell hybridomas expressing surface IgM, cytoplasmic Ig light chain only, cytoplasmic Ig heavy chain only, or an antigen specific secreted IgG. In addition, in IgM surface expressing WEHI-231 B cells, anti-IgM coprecipitates GRP78, GRP94, as well as GRP170; antibodies against GRP170 and GRP94 reciprocally coprecipitate GRP94/GRP170 as well as GRP78. Results suggest that this 170-kDa GRP is a retained ER lumenal glycoprotein that is constitutively present and that may play a role in immunoglobulin folding and assembly in conjunction or consecutively with GRP78 and GRP94.
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Affiliation(s)
- H Y Lin
- Department of Molecular and Cellular Biology, Roswell Park Cancer Institute, Buffalo, New York 14263
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