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Nikravesh FY, Gholami P, Bayat E, Talebkhan Y, Mirabzadeh E, Damough S, Aliabadi HAM, Nematollahi L, Ardakani YH. Expression, Purification, and Biological Evaluation of XTEN- GCSF in a Neutropenic Rat Model. Appl Biochem Biotechnol 2024; 196:804-820. [PMID: 37209276 DOI: 10.1007/s12010-023-04522-w] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2023] [Indexed: 05/22/2023]
Abstract
Granulocyte colony-stimulating factor (GCSF) stimulates the proliferation of neutrophils but it has low serum half-life. Therefore, the present study was done to investigate the effect of XTENylation on biological activity, pharmacokinetics, and pharmacodynamics of GCSF in a neutropenic rat model. XTEN tag was genetically fused to the N-terminal region of GCSF-encoding gene fragment and subcloned into pET28a expression vector. The cytoplasmic expressed recombinant protein was characterized through intrinsic fluorescence spectroscopy (IFS), dynamic light scattering (DLS), and size exclusion chromatography (SEC). In vitro biological activity of the XTEN-GCSF protein was evaluated on NFS60 cell line. Hematopoietic properties and pharmacokinetics were also investigated in a neutropenic rat model. An approximately 140 kDa recombinant protein was detected on SDS-PAGE. Dynamic light scattering and size exclusion chromatography confirmed the increase in hydrodynamic diameter of GCSF molecule after XTENylation. GCSF derivatives showed efficacy in proliferation of NFS60 cell line among which the XTEN-GCSF represented the lowest EC50 value (100.6 pg/ml). Pharmacokinetic studies on neutropenic rats revealed that XTEN polymer could significantly increase protein serum half-life in comparison with the commercially available GCSF molecules. PEGylated and XTENylated GCSF proteins were more effective in stimulation of neutrophils compared to the GCSF molecule alone. XTENylation of GCSF represented promising results in in vitro and in vivo studies. This approach can be a potential alternative to PEGylation strategies for increasing serum half-life of protein.
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Affiliation(s)
| | - Parisa Gholami
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Elham Bayat
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Yeganeh Talebkhan
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran.
| | - Esmat Mirabzadeh
- Department of Molecular Medicine, Pasteur Institute of Iran, Tehran, Iran
| | - Shadi Damough
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | | | - Leila Nematollahi
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
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Khouj E, Marafi D, Aljamal B, Hajiya A, Elshafie RM, Hashem MO, Abdulwahab F, Jaafar A, Alshidi T, Aboelanine AH, Awaji A, Alkuraya FS. Human 'knockouts' of CSF3 display severe congenital neutropenia. Br J Haematol 2023; 203:477-480. [PMID: 37612131 DOI: 10.1111/bjh.19054] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/07/2023] [Accepted: 08/08/2023] [Indexed: 08/25/2023]
Abstract
Colony-stimulating factor 3 (CSF3) is a key factor in neutrophil production and function, and recombinant forms have been used clinically for decades to treat congenital and acquired neutropenia. Although biallelic inactivation of its receptor CSF3R is a well-established cause of severe congenital neutropenia (SCN), no corresponding Mendelian disease has been ascribed to date to CSF3. Here, we describe three patients from two families each segregating a different biallelic inactivating variant in CSF3 with SCN. Complete deficiency of CSF3 as a result of nonsense-mediated decay (NMD) could be demonstrated on RT-PCR using skin fibroblasts-derived RNA. The phenotype observed in this cohort mirrors that documented in mouse and zebrafish models of CSF3 deficiency. Our results suggest that CSF3 deficiency in humans causes a novel autosomal recessive form of SCN.
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Affiliation(s)
- Ebtissal Khouj
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Dana Marafi
- Department of Pediatrics, Faculty of Medicine, Kuwait University, Safat, Kuwait
- Department of Pediatrics, Adan Hospital, Ministry of Health, Hadiya, Kuwait
- Kuwait Medical Genetics Centre, Ministry of Health, Sulaibikhat, Kuwait
| | - Bayan Aljamal
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Anwar Hajiya
- Department of Pediatrics, Adan Hospital, Ministry of Health, Hadiya, Kuwait
| | - Reem M Elshafie
- Kuwait Medical Genetics Centre, Ministry of Health, Sulaibikhat, Kuwait
| | - Mais O Hashem
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Firdous Abdulwahab
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Amal Jaafar
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Tarfa Alshidi
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | | | - Ali Awaji
- Genetic Center, Prince Mohammed bin Nasser Hospital, Jazan, Saudi Arabia
| | - Fowzan S Alkuraya
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
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Gouife M, Wang F, Ban Z, Yue X, Jiang J, Xie J. Molecular and functional characterization of two granulocyte colony stimulating factors in goldfish (Carassius auratus L.). Comp Biochem Physiol B Biochem Mol Biol 2023; 268:110879. [PMID: 37490965 DOI: 10.1016/j.cbpb.2023.110879] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 07/27/2023]
Abstract
Granulocyte colony-stimulating factor (GCSF) is a member of the hematopoietic growth factor family that acts primarily on neutrophils and neutrophilic precursors to promote cell proliferation and differentiation. Although multiple GCSF genes have been found in teleosts, knowledge of their functions during fish hematopoietic development is still limited. Here, we report for the first time the molecular and functional characterization of two goldfish GCSFs (gfGCSF-a and gfGCSF-b). The open reading frame (ORF) of the gfGCSF-a and gfGCSF-b cDNA transcript consisted respectively of 624 bp and 678 bp with its ORF encoding 207 and 225 amino acids (aa), with a 17 aa signal peptide for each gene and a conserved domain of the IL-6 superfamily. Treatment of goldfish head kidney leukocytes (HKLs) with LPS increased gfGCSF-a and gfGCSF-b mRNA expression levels, also exposure of HKLs to either heat-killed or live A. hydrophila, induced transcriptional upregulation of gfGCSF-a and gfGCSF-b levels. Recombinant gfGCSF-a and gfGCSF-b protein (rgGCSF-a and rgGCSF-b) induced a dose-dependent production of TNFα and IL-1β from goldfish neutrophils. In vitro experiments showed rgGCSF-a and rgGCSF-b differentially promoted the proliferation and differentiation of leukocytes in goldfish. Furthermore, treatment of HKLs with rgGCSF-a showed significant upregulation of mRNA levels of the hematopoietic transcription factor GATA2, Runx1, MafB, and cMyb, while gfGCSF-b induces not only all four transcriptional factors mentioned above but also CEBPα. Our results indicate that goldfish GCSF-a and GCSF-b are important regulators of neutrophil proliferation and differentiation, which could stimulate different stages and lineages of hematopoiesis.
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Affiliation(s)
- Moussa Gouife
- Zhejiang Institute of Freshwater Fisheries, Huzhou, Zhejiang 313001, China; School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, China. https://twitter.com/Mouskharim
| | - Feiyang Wang
- Zhejiang Institute of Freshwater Fisheries, Huzhou, Zhejiang 313001, China; School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Ziqi Ban
- School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Xinyuan Yue
- School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Jianhu Jiang
- Zhejiang Institute of Freshwater Fisheries, Huzhou, Zhejiang 313001, China.
| | - Jiasong Xie
- School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, China; National Engineering Research Laboratory of Marine Biotechnology and Engineering, Ningbo University, Ningbo, Zhejiang 315211, China; Key Laboratory of Aquacultural Biotechnology, Ministry of Education, Ningbo, Zhejiang 315211, China.
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Hu Q, Zhang Y, Liu M, Wang B, Wang X, Wang T. Neonatal cytokines associated with infant overweight and obesity at 1 year of age. Obes Res Clin Pract 2023; 17:102-107. [PMID: 36935337 DOI: 10.1016/j.orcp.2023.02.007] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 02/14/2023] [Accepted: 02/23/2023] [Indexed: 03/19/2023]
Abstract
OBJECTIVE The incidence of childhood overweight and obesity has been increasing in recent years. Immune dysregulation has been demonstrated as a condition related to childhood obesity. Whether the neonatal immune status is related to infant overweight and obesity at 1 year of age is unclear. METHODS To explore the relationship between neonatal cytokines and infant overweight and obesity, we conducted a prospective study in Suzhou Municipal Hospital Affiliated to Nanjing Medical University from 2015 to 2016. 514 neonates were recruited and their dried blood spots were collected after birth. Infants were grouped into normal size groups and overweight and obesity groups based on BMI at 1 year of age. 27 neonatal cytokines levels were compared between the two groups. RESULTS 370 infants were included in final analysis. Granulocyte colony stimulating factor (GCSF), interleukin-17A (IL17A) and platelet derived growth factor-BB (PDGF-BB) levels were independently associated with childhood overweight and obesity (OR =1.27, 95%CI 1.03, 1.57; OR =1.29, 95%CI: 1.06, 1.60; OR =0.69, 95%CI: 0.49, 0.96). Additionally, neonatal GCSF and IL17A levels were positively associated with increased BMI (β = 0.11, 95%CI: 0.02, 0.19; β = 0.07, 95%CI 0.01, 013) and BMI z-scores (β = 0.10, 95%CI: 0.02, 0.18; β = 0.06, 95%CI 0.01, 0.13). Neonatal PDGF-BB levels were negatively associated with BMI (β = -0.12, 95%CI: -0.23, -0.01) and BMI z-scores (β = -0.12, 95%CI: -0.23, -0.01). The inverse probability weighting (IPW) was performed to account for potential selection bias of this study, and the results were consistent with the above mentioned findings. CONCLUSIONS Neonatal GCSF, IL17A and PDGF-BB levels were correlated with infant overweight and obesity at 1 year of age, suggesting that early life immune status play a significant role of late obesity.
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Affiliation(s)
- Qi Hu
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Beilun District Center for Disease Control and Prevention, Ningbo 315899, China
| | - Yuqing Zhang
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing 210004, China
| | - Minjuan Liu
- The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215000, China
| | - Benjing Wang
- The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215000, China
| | - Xu Wang
- Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Ting Wang
- The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215000, China.
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Anpalakhan S, Huddar P, Behrouzi R, Signori A, Cave J, Comins C, Cortellini A, Addeo A, Escriu C, McKenzie H, Barone G, Murray L, Bhatnagar G, Pinato DJ, Ottensmeier C, Gomes F, Banna GL. The Effects of GCSF Primary Prophylaxis on Survival Outcomes and Toxicity in Patients with Advanced Non-Small Cell Lung Cancer on First-Line Chemoimmunotherapy: A Sub-Analysis of the Spinnaker Study. Int J Mol Sci 2023; 24. [PMID: 36675262 DOI: 10.3390/ijms24021746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 01/03/2023] [Accepted: 01/09/2023] [Indexed: 01/18/2023] Open
Abstract
GCSF prophylaxis is recommended in patients on chemotherapy with a >20% risk of febrile neutropenia and is to be considered if there is an intermediate risk of 10−20%. GCSF has been suggested as a possible adjunct to immunotherapy due to increased peripheral neutrophil recruitment and PD-L1 expression on neutrophils with GCSF use and greater tumour volume decrease with higher tumour GCSF expression. However, its potential to increase neutrophil counts and, thus, NLR values, could subsequently confer poorer prognoses on patients with advanced NSCLC. This analysis follows on from the retrospective multicentre observational cohort Spinnaker study on advanced NSCLC patients. The primary endpoints were OS and PFS. The secondary endpoints were the frequency and severity of AEs and irAEs. Patient information, including GCSF use and NLR values, was collected. A secondary comparison with matched follow-up duration was also undertaken. Three hundred and eight patients were included. Median OS was 13.4 months in patients given GCSF and 12.6 months in those not (p = 0.948). Median PFS was 7.3 months in patients given GCSF and 8.4 months in those not (p = 0.369). A total of 56% of patients receiving GCSF had Grade 1−2 AEs compared to 35% who did not receive GCSF (p = 0.004). Following an assessment with matched follow-up, 41% of patients given GCSF experienced Grade 1−2 irAEs compared to 23% of those not given GCSF (p = 0.023). GCSF prophylaxis use did not significantly affect overall or progression-free survival. Patients given GCSF prophylaxis were more likely to experience Grade 1−2 adverse effects and Grade 1−2 immunotherapy-related adverse effects.
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Sharma R, Anupa A, Rathore AS. Refolding of Proteins Expressed as Inclusion Bodies in E. coli. Methods Mol Biol 2023; 2617:201-208. [PMID: 36656526 DOI: 10.1007/978-1-0716-2930-7_14] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Microbial-based biotherapeutics that are produced in Escherichia coli (E. coli) can be generated intracellularly in the form of inclusion bodies (IBs) or in soluble active form in periplasmic space or extracellularly. Overexpression of these biotherapeutics in E. coli leads to formation of insoluble aggregates called inclusion bodies. These IBs contain misfolded and inactive form of proteins which need to be refolded to obtain a functionally active form of proteins. Here, we discuss refolding of E. coli-based recombinant human granulocyte colony-stimulating factor (GCSF), expressed as IBs, and highlight some of the key features associated with the refolding kinetic reaction.
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Affiliation(s)
- Rashmi Sharma
- School of Interdisciplinary Research, Indian Institute of Technology Delhi, New Delhi, India
| | - Anupa Anupa
- School of Interdisciplinary Research, Indian Institute of Technology Delhi, New Delhi, India
| | - Anurag S Rathore
- School of Interdisciplinary Research, Indian Institute of Technology Delhi, New Delhi, India.
- Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi, India.
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Aramesh S, Azizi Kutenaee M, Najafi F, Ghaffari P, Taghavi SA. Granulocyte colony stimulating factor ( GCSF) did not affect the fertility outcomes in women with unexplained infertility after intrauterine insemination: a randomised clinical trial. J OBSTET GYNAECOL 2022; 42:2480-2485. [PMID: 35787135 DOI: 10.1080/01443615.2022.2080534] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
This study aimed to evaluate the effect of granulocyte colony stimulating factor (GCSF) on fertility outcomes in women with unexplained infertility after intrauterine insemination (IUI). This study is a randomised clinical trial that was conducted on unexplained infertile women referred to infertility Clinic in Yasuj, Iran. All participants were stimulated by letrozole, clomiphene and HMG during the cycle. When at least one follicle was greater than 18 mm, 5000 IU hCG intramuscularly was administered for ovulation induction and then IUI was performed 34-36 hours later. In GCSF group, 300 μg GCSF subcutaneously administrated in two days after IUI. Control group received routine IUI. The main outcome measures were biochemical pregnancy, clinical pregnancy, abortion and ongoing pregnancy rate. Our results showed no statistically significant difference in the biochemical pregnancy (16.3% vs. 12.2%; P=.56), clinical pregnancy (16.3% vs. 8.2%; P=.21), abortion (0 vs. 2.04%; P=.55) and ongoing pregnancy rates (8.2% vs. 14.2%; P=.32) between the control and the G-CSF groups. The results of the current study suggest that systemic administration of 300 μg GCSF in the two days after receiving IUI in patients with unexplained infertility does not offer any beneficial clinical related implantation, and pregnancy rates. IRCT registration number: IRCT20160524028038N4 Impact statementWhat is already known on this subject? Unexplained infertility means to the inability of couples in pregnancy after a year without obvious male and female infertility factors. Some patients have not been justified in endometrial function, which leads to the defect of the dialogue between the foetus and endometrium and may lead to implantation failure. Granulocyte colony stimulating factor is produced at the maternal-foetal interface during embryo implantation and is the main part of the uterine-cytokine network that is needed to create and maintain pregnancy.What do the results of this study add? The current study suggests that systemic administration of 300 μg granulocyte colony stimulating factor in the two days after receiving IUI in patients with unexplained infertility does not offer any beneficial clinical related implantation and pregnancy rates.What are the implications of these findings for clinical practice and/or further research? These results may not be generalised to all patients and more randomised controlled trials are needed for the comparison of granulocyte colony stimulating factor effects on women with thin and normal endometrial thickness, efficacy, side effects, and pregnancy outcomes of the intrauterine perfusion versus systemic subcutaneous administration of granulocyte colony stimulating factor in unexplained infertility treated with intrauterine insemination.
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Affiliation(s)
- Shahintaj Aramesh
- Gynecologic and Obstetrics Department, School of Medicine, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Maryam Azizi Kutenaee
- Fertility and Infertility Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Fataneh Najafi
- Gynecologic and Obstetrics Department, School of Medicine, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Parvin Ghaffari
- Gynecologic and Obstetrics Department, School of Medicine, Yasuj University of Medical Sciences, Yasuj, Iran
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Nguyen HPA, Ren J, Butler M, Li H, Qazi S, Sadiq K, Dao HT, Holterman A. Study protocol of Phase 2 open-label multicenter randomized controlled trial for granulocyte-colony stimulating factor ( GCSF) in post-Kasai Type 3 biliary atresia. Pediatr Surg Int 2022; 38:1019-30. [PMID: 35391541 DOI: 10.1007/s00383-022-05115-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/17/2022] [Indexed: 12/07/2022]
Abstract
Animal studies support RCT findings of improved liver function and short-term benefits using repurposed Granulocyte Colonic Stimulating Factor GCSF in adults with decompensated cirrhosis. We describe the protocol for phase 2 RCT of sequential Kasai-GCSF under an FDA-approved IND to test that GCSF improves early bile flow and post-Kasai biliary atresia BA clinical outcome. Immediate post-Kasai neonates, age 15-180 days, with biopsy-confirmed type 3 BA, without access to early liver transplantation, will be randomized 1:1 to standard of care SOC + GCSF at 10 ug/kg in 3 daily doses within 4 days of Kasai vs SOC + NO-GCSF (ClinicalTrials.gov NCT0437391). They will be recruited from children's hospitals in Vietnam, Pakistan and one US center. The primary objective is to demonstrate that GCSF decreases the proportion of subjects with a 3-month post-Kasai serum Total Bilirubin ≥ 34 umol/L by 20%, (for a = 0.05, b = 0.80, i.e., calculated sample size of 218 subjects). The secondary objectives are to demonstrate that the frequency of post-Kasai cholangitis at 6-month and 24-month transplant-free survival are improved. The benefits are that GCSF is an affordable BA adjunct therapy, especially in developing countries, to improve biliary complications, enhance quality of liver and survival while diminishing costly liver transplantation.Clinical trial registration: A phase 1 for GCSF dose and safety determination under ClinicalTrials.gov identifier NCT03395028 was completed in 2019. The current Phase 2 trial was registered under NCT04373941.
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Sella T, Exman P, Ren S, Freret TS, Economy KE, Chen WY, Parsons HA, Lin NU, Moy B, Tung NM, Partridge AH, Tayob N, Mayer EL. Outcomes after treatment of breast cancer during pregnancy including taxanes and/or granulocyte colony-stimulating factor use: findings from a multi-institutional retrospective analysis. Breast Cancer Res Treat 2022; 194:597-606. [PMID: 35715538 DOI: 10.1007/s10549-022-06621-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 04/30/2022] [Indexed: 01/18/2023]
Abstract
BACKGROUND Guidelines support comparable treatment for women diagnosed with breast cancer during pregnancy (PrBC) and nonpregnant women with limited case-specific modifications to ensure maternal-fetal safety. Experience during pregnancy with modern agents, such as taxanes or granulocyte colony-stimulating factors (GCSF), is limited. PATIENTS AND METHODS We retrospectively identified a multi-institutional cohort of PrBC between 1996 and 2020. Propensity score analyses with multiple imputation for missing variables were applied to determine the associations between chemotherapy exposures during pregnancy, with or without taxanes or GCSF, and a compound maternal-fetal outcome including spontaneous preterm birth, preterm premature rupture of membranes, chorioamnionitis, small for gestational age newborns, congenital malformation, or 5-min Apgar score < 7. RESULTS Among 139 PrBC pregnancies, 82 (59.0%) were exposed to chemotherapy, including 26 (31.7%) to taxane and 18 (22.0%) to GCSF. Chemotherapy use, in general, and inclusion of taxane and/or GCSF, specifically, increased over time. Pregnancies resulting in live singleton births (n = 123) and exposed to chemotherapy were as likely to reach term as those that were not (59.5% vs. 63.6%, respectively, punadjusted = 0.85). Among women treated with chemotherapy, propensity score-matched odds ratios (OR) for the composite maternal-fetal outcome were not significantly increased with taxane (OR 1.24, 95% CI 0.27-5.72) or GCSF (OR 2.11, 95% confidence interval (CI) 0.48-9.22) with similar effects in multiple imputation and sensitivity models. CONCLUSION The judicious increased use of taxane chemotherapy and/or growth factor support during pregnancy was not associated with unfavorable short-term maternal-fetal outcomes. While these findings are reassuring, case numbers remain limited and continued surveillance of these patients and progeny is warranted.
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Affiliation(s)
- Tal Sella
- Department of Medical Oncology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA, USA
| | - Pedro Exman
- Hospital Alemão Oswaldo Cruz, Sao Paulo, Brazil
| | - Siyang Ren
- Data Science, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Taylor S Freret
- Division of Maternal-Fetal Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Katherine E Economy
- Division of Maternal-Fetal Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Wendy Y Chen
- Department of Medical Oncology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA, USA
| | - Heather A Parsons
- Department of Medical Oncology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA, USA
| | - Nancy U Lin
- Department of Medical Oncology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA, USA
| | - Beverly Moy
- Medical Oncology, Massachusetts General Hospital, Boston, MA, USA
| | - Nadine M Tung
- Medical Oncology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Ann H Partridge
- Department of Medical Oncology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA, USA
| | - Nabihah Tayob
- Data Science, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Erica L Mayer
- Department of Medical Oncology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA, USA.
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Abstract
PURPOSE OF REVIEW Pediatric oncology patients frequently experience episodes of prolonged neutropenia which puts them at high risk for infection with significant morbidity and mortality. Here, we review the data on infection prophylaxis with a focus on both pharmacologic and ancillary interventions. This review does not include patients receiving hematopoietic stem cell transplantation. RECENT FINDINGS Patients with hematologic malignancies are at highest risk for infection. Bacterial and fungal prophylaxis decrease the risk of infection in certain high-risk groups. Ancillary measures such as ethanol locks, chlorhexidine gluconate baths, GCSF, IVIG, and mandatory hospitalization do not have enough data to support routine use. There is limited data on risk of infection and role of prophylaxis in patients receiving immunotherapy and patients with solid tumors. Patients with Down syndrome and adolescent and young adult patients may benefit from additional supportive care measures and protocol modifications. Consider utilizing bacterial and fungal prophylaxis in patients with acute myeloid leukemia or relapsed acute lymphoblastic leukemia. More research is needed to evaluate other supportive care measures and the role of prophylaxis in patients receiving immunotherapy.
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Affiliation(s)
- Stephanie Villeneuve
- Paediatric Haemotology/Oncology, Dalhousie University and the IWK Health Centre, 5850/5980 University Avenue, Halifax, NS, B3K 6R8, Canada
| | - Catherine Aftandilian
- Pediatric Hematology/Oncology, Stanford University, 1000 Welch Rd, Palo Alto, CA, 94304, USA.
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Abstract
End-stage liver disease is characterized by massive hepatocyte death resulting in clinical decompensation and organ failures. Clinical consequences in cirrhosis are the results of the loss of functional hepatocytes and excessive scarring. The only curative therapy in advanced cirrhosis is orthotropic liver transplantation, but the clinical demand outweighs the availability of acceptable donor organs. Moreover, this also necessitates lifelong immunosuppression and carries associated risks. The liver has a huge capability for regeneration. Self-replication of quiescent differentiated hepatocytes and cholangiocytes occurs in patients with acute liver injury. Due to limited hepatocyte self-renewal capacity in advanced cirrhosis, great interest has therefore been shown in characterizing the possible role of hepatic progenitor cells and bone marrow-derived stem cells to therapeutically aid this process. Transplantation of cells from various sources that can be properly differentiated into functional liver cells or use of growth factors for ex-vivo expansion of progenitor cells is needed at utmost priority. Multiple researches over the last two decades have aided researchers in refining proliferation, differentiation, and storage techniques and understand the functionality of these cells for use in clinical practice. However, these cell-based therapies are still experimental and have to be used in trial settings.
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Key Words
- Ang2, angiopoietin 2
- BM, Bone marrow
- BM-MNCs, bone marrow mononuclear cells
- BMSC, bone marrow stem cells
- DAMPs, Damage associated molecular patterns
- EPCs, endothelial progenitor cells
- ESRP2, epithelial splicing regulatory protein 2
- GCSF
- HGF, hepatocyte growth factor
- HPC, Hepatocyte progenitor cells
- HSCs, hematopoietic stem cells
- Hh, Hedgehog
- HybHP, hybrid periportal hepatocytes
- MMP, matrix metalloprotease
- MSCs, mesenchymal stromal cells
- OLT, Orthotropic liver transplantation
- PAMPs, Pathogen associated molecular patterns
- SAH, severe alcoholic hepatitis
- SDF1, stromal-derived factor 1
- TNFSF12, tumor necrosis factor ligand superfamily member 12
- Terthigh, high Telomerase reverse transcriptase
- [Hnf4a], Hepatocyte Nuclear Factor 4 Alpha
- [Mfsd2a], Major Facilitator Superfamily Domain containing 2A
- acute liver failure
- chronic liver diseases
- hepatocyte transplant
- liver regeneration
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Abstract
A considerable amount of continuous proliferation and differentiation is required to produce daily a billion new neutrophils in an adult human. Of the few cytokines and factors known to control neutrophil production, G-CSF is the guardian of granulopoiesis. G-CSF/CSF3R signaling involves the recruitment of non-receptor protein tyrosine kinases and their dependent signaling pathways of serine/threonine kinases, tyrosine phosphatases, and lipid second messengers. These pathways converge to activate the families of STAT and C/EBP transcription factors. CSF3R mutations are associated with human disorders of neutrophil production, including severe congenital neutropenia, neutrophilia, and myeloid malignancies. More than three decades after their identification, cloning, and characterization of G-CSF and G-CSF receptor, fundamental questions remain about their physiology.
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Affiliation(s)
- Hrishikesh M Mehta
- Departments of Cancer Biology and Pediatrics, Lerner Research Institute at the Cleveland Clinic, United States
| | - Seth J Corey
- Departments of Cancer Biology and Pediatrics, Lerner Research Institute at the Cleveland Clinic, United States.
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13
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Rathi S, Hussaini T, Yoshida EM. Granulocyte colony stimulating factor: A potential therapeutic rescue in severe alcoholic hepatitis and decompensated cirrhosis. Ann Hepatol 2021; 20:100211. [PMID: 32533952 DOI: 10.1016/j.aohep.2020.04.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 04/29/2020] [Accepted: 04/29/2020] [Indexed: 02/06/2023]
Abstract
Liver cirrhosis accounts for over 2 million deaths annually worldwide. A subset of these patients - those with alcoholic hepatitis and decompensated cirrhosis, have abysmal short-term survival. Liver transplant is the only intervention of proven survival benefit; however organ availability is a major limitation. It is thus imperative to assess potential benefit of experimental therapies as a bridge to transplant. Stem cell therapies have shown some promise in patients with end-stage liver disease. Of these, bone-marrow derived hematopoietic stem cells have generated the most interest. Animal as well as human data suggest biological plausibility of stem cell translocation from bone marrow to liver, giving credence to cytokine therapies based on bone marrow stimulation. Granulocyte colony stimulating factor has been the most frequently used cytokine for this purpose. This intervention has shown encouraging results in terms of safety as well as survival benefits in small clinical trials. The evidence, however, is sparse and heterogeneous. In this review we describe the biological plausibility, mechanisms of action, and clinical evidence of the use of cytokine based stem cell therapy in patients with end-stage liver disease.
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Affiliation(s)
- Sahaj Rathi
- Division of Gastroenterology, University of British Columbia and Vancouver General Hospital, Canada
| | - Trana Hussaini
- Division of Gastroenterology, University of British Columbia and Vancouver General Hospital, Canada
| | - Eric M Yoshida
- Division of Gastroenterology, University of British Columbia and Vancouver General Hospital, Canada.
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14
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Holterman A, Nguyen HPA, Nadler E, Vu GH, Mohan P, Vu M, Trinh TT, Bui HTT, Nguyen BT, Quynh AT, Pham HD. Granulocyte-colony stimulating factor GCSF mobilizes hematopoietic stem cells in Kasai patients with biliary atresia in a phase 1 study and improves short term outcome. J Pediatr Surg 2021; 56:1179-1185. [PMID: 33965236 DOI: 10.1016/j.jpedsurg.2021.03.038] [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] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 03/12/2021] [Indexed: 02/07/2023]
Abstract
AIMS In RCT of adults with decompensated cirrhosis, GCSF mobilizes hematopoietic stem cells HSC and improves short-term outcome. An FDA-IND for sequential Kasai-GCSF treatment in biliary atresia BA was approved. This phase 1 study examines GCSF safety in Kasai subjects. Preliminary short-term outcome was evaluated. METHODS GCSF (Neupogen) at 5 or 10 μg/kg (n = 3/group) was given in 3 daily doses starting on day 3 of Kasai surgery (NCT03395028). Serum CD34+ HSC cell counts, and 1-month of GCSF-related adverse events were monitored. The 6-months Phase 1 clinical outcome was compared against 10 subsequent post Phase 1 Kasai patients who did not receive GCSF. RESULTS With GCSF, WBC and platelet count transiently increased, LFT and serum creatinine remained stable. Reversible splenic enlargement (by 8.5-20%) occurred in 5/6 subjects. HSC count increased 12-fold and 17.5-fold for the 5 μg/kg and10 ug/kg dose respectively; with respective median total bilirubin levels for GCSF vs no-GCSF groups of 55 vs 91 μM at 1 month, p = 0.05; 15 vs 37 μM at 3 months, p = 0.24); and the 6-months cholangitis frequency of 40% vs 90%, p = 0.077. CONCLUSIONS GCSF safely mobilizes HSC in Kasai infants and may improve short-term biliary drainage and cholangitis. Phase 2 efficacy outcome of GCSF adjunct therapy for sequential Kasai and GCSF is pending.
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Affiliation(s)
- AiXuan Holterman
- Department of Surgery and Pediatrics, University of Illinois College of Medicine, Chicago, IL, United States.
| | | | - Evan Nadler
- Children's National Hospital, Washington, D.C, United States
| | - Giap H Vu
- University of Rochester School of Medicine and Dentistry, Rochester, NY, United States
| | - Parvathi Mohan
- Children's National Hospital, Washington, D.C, United States
| | - Megan Vu
- Baylor College of Medicine Department of Surgery, Houston, TX, United States
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15
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Işık G, Oktem M, Guler I, Oktem E, Ozogul C, Saribas S, Erdem A, Erdem M. The impact of granulocyte colony-stimulating factor (G-CSF) on thin endometrium of an animal model with rats. Gynecol Endocrinol 2021; 37:438-445. [PMID: 32611261 DOI: 10.1080/09513590.2020.1786508] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 05/09/2020] [Accepted: 06/19/2020] [Indexed: 12/13/2022] Open
Abstract
MATERIALS AND METHODS After forming of the thin endometrium by uterine injection of 0.2 ml 96% ethyl alcohol to the rats, five days of subcutaneous injections of 40 μg/kg G-CSF or saline were given. Endometrial thickness, immunohistochemically expression of vascular endothelial growth factor receptor-2 (VEGF-R2), proliferative cell nuclear antigen (PCNA) and fibronectin apoptosis with TUNEL method were compared in specimens among four groups of post-model rats. RESULTS Endometrial thickness was significantly improved in thin but not in normal endometrium group with GCSF when compared to saline injection. Stromal and glandular epithelial expression of PCNA and pericapillary VEGF-R2 was significantly increased, and apoptosis was significantly decreased with G-CSF. Although fibronectin was also increased with G-CSF in the thin endometrium, the difference was non-significant. In further, G-CSF decreased apoptotic cells and increased expression of PCNA when compared to saline injection in normal endometrium. CONCLUSIONS G-CSF improves endometrial thickness, proliferation, angiogenesis and DNA fragmentation in thin endometrium.
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Affiliation(s)
- G Işık
- Department of Obstetrics and Gynecology, Gazi University School of Medicine, Besevler, Ankara, Turkey
| | - M Oktem
- Department of Obstetrics and Gynecology, Gazi University School of Medicine, Besevler, Ankara, Turkey
| | - I Guler
- Department of Obstetrics and Gynecology, Gazi University School of Medicine, Besevler, Ankara, Turkey
| | - E Oktem
- Department of Obstetrics and Gynecology, Gazi University School of Medicine, Besevler, Ankara, Turkey
| | - C Ozogul
- Department of Histology and Embryology, Gazi University School of Medicine, Besevler, Ankara, Turkey
| | - S Saribas
- Department of Histology and Embryology, Ahi Evran University School of Medicine, Bagbasi, Kirsehir, Turkey
| | - A Erdem
- Department of Obstetrics and Gynecology, Gazi University School of Medicine, Besevler, Ankara, Turkey
| | - M Erdem
- Department of Obstetrics and Gynecology, Gazi University School of Medicine, Besevler, Ankara, Turkey
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Zhang Y, Zhou X, Liu P, Chen X, Zhang J, Zhang H, Li S, Chen Y, Song X, Wang J, Zeng H, Zhang X, Tang C, Yu C, Li Y, Xu C. GCSF deficiency attenuates nonalcoholic fatty liver disease through regulating GCSFR-SOCS3-JAK-STAT3 pathway and immune cells infiltration. Am J Physiol Gastrointest Liver Physiol 2021; 320:G531-G542. [PMID: 33470903 DOI: 10.1152/ajpgi.00342.2020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 01/11/2021] [Indexed: 01/31/2023]
Abstract
Granulocyte colony stimulating factor (GCSF) is a cytokine with immunomodulation effects. However, little is known about its role in metabolic diseases. In the current study, we aimed to explore the role of GCSF in nonalcoholic fatty liver disease (NAFLD). Male GCSF-/- mice were used to investigate the function of GCSF in vivo after high-fat diet (HFD). Primary hepatocytes were used for evaluating the function of GCSF in vitro. Liver immune cells were isolated and analyzed by flow cytometry. Our results showed that GCSF administration significantly increased serum triglyceride (TG) levels in patients. Circulating GCSF was markedly elevated in HFD-fed mice. GCSF-/- mice exhibited alleviated HFD-induced obesity, insulin resistance, and hepatic steatosis. Extra administration of GCSF significantly aggravated palmitic acid (PA)-induced lipid accumulation in primary hepatocytes. Mechanically, GCSF could bind to granulocyte colony stimulating factor receptor (GCSFR) and regulate suppressors of cytokine signaling 3, Janus kinase, signal transducer and activator of transcription 3 (SOCS3-JAK-STAT3) pathway. GCSF also enhanced hepatic neutrophils and macrophages infiltration, thereby modulating NAFLD. These findings suggest that GCSF plays an important regulatory role in NAFLD and may be a potential therapeutic target for NAFLD.NEW & NOTEWORTHY We found GCSF was involved in lipid metabolism and NAFLD development. GCSF administration increased serum triglyceride levels in patients. GCSF deficiency alleviated HFD-induced insulin resistance and hepatic steatosis in mice. GCSF could directly act on hepatocytes through GCSFR-SOCS3-JAK-STAT3 pathway, and regulate the infiltration of immune cells into the liver to indirectly modulate NAFLD. Our finding indicates that GCSF may provide new strategies for the treatment of NAFLD.
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Affiliation(s)
- Yuwei Zhang
- Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xuefeng Zhou
- Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Peihao Liu
- Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xueyang Chen
- Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jie Zhang
- Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Hong Zhang
- Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Sha Li
- Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yishu Chen
- Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xin Song
- Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jinghua Wang
- Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Hang Zeng
- Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaofen Zhang
- Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chenxi Tang
- Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chaohui Yu
- Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Youming Li
- Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chengfu Xu
- Department of Gastroenterology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Cao H, Guo P, Wu X, Li J, Ge C, Wang S. GCSF As a Potential Molecular Target for Overall Survival of Hepatocellular Carcinoma. Comb Chem High Throughput Screen 2021; 25:1005-1023. [PMID: 34225626 DOI: 10.2174/1386207324666210322124003] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 02/13/2021] [Accepted: 02/27/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is one of the most common malignant tumors of digestive tract in the world. Therefore, it is important to carry out studies on the molecular mechanisms of early diagnosis and treatment of HCC to reduce mortality. METHODS Bioinformatic analysis was performed to explore the significant role of GCSF on the occurrence and development of neoplasm. Differently expressed genes (DEGs) were screened, and the significant hub genes related with GCSF were identified by the multiple algorithms of Cytoscape. Functional annotation for DEGs, pathological stage and overall survival analysis were implemented. In addition, the verification for the role of GCSF on HCC was made via the clinical samples. A total of 70 participates diagnosed as HCC were recruited from November 2014 to November 2019. The immunohistochemistry assay, qRT-PCR, receiver operating characteristic (ROC) curves, and overall survival analysis were carried out. RESULTS GCSF was related with the tumor size, and the expression of GCSF was up-regulated in hepatocellular carcinoma tissues. The enrichment results of GO and KEGG analysis were mainly enriched in "Inflammatory response", "Protein binding", "Metabolic pathways", and "Proteasome". The tumor diameter (P < 0.001), and survival time (P < 0.001) were significantly associated with expression of GCSF via the verification of clinical data. The univariate and multivariate Cox proportional regression analysis manifested that high expression of GCSF in patients with HCC was related to poor OS. CONCLUSION The expression level of GCSF is significantly associated with the prognostic survival of HCC, and it is expected to become a new prognostic marker of HCC, providing a novel idea for future basic research as well as targeted therapy.
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Affiliation(s)
- Heng Cao
- Department of Hepatobiliary Surgery, The Fourth Hospital of Hebei Medical University, 12 Health Road, Shijiazhuang, Hebei 050011, China
| | - Peng Guo
- Department of Orthopedics, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - Xiaohui Wu
- Department of Hepatobiliary Surgery, The Fourth Hospital of Hebei Medical University, 12 Health Road, Shijiazhuang, Hebei 050011, China
| | - Jiankun Li
- Department of Hepatobiliary Surgery, The Fourth Hospital of Hebei Medical University, 12 Health Road, Shijiazhuang, Hebei 050011, China
| | - Chenlong Ge
- Specimens library, The Fourth Hospital of Hebei Medical University, 12 Health Road, Shijiazhuang, Hebei 050011, China
| | - Shunxiang Wang
- Department of Hepatobiliary Surgery, The Fourth Hospital of Hebei Medical University, 12 Health Road, Shijiazhuang, Hebei 050011, China
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18
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Hernandez JM, Quarles R, Lakshmi S, Casanas B, Eatrides J, McCoy E, Somboonwit C. Pancytopenia and Profound Neutropenia as a Sequela of Severe SARS-CoV-2 Infection (COVID-19) With Concern for Bone Marrow Involvement. Open Forum Infect Dis 2021; 8:ofab017. [PMID: 33604404 PMCID: PMC7880265 DOI: 10.1093/ofid/ofab017] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 01/15/2021] [Indexed: 12/29/2022] Open
Abstract
Pancytopenia and neutropenia due to coronavirus disease 2019 (COVID-19) are rare. Here we report a case of neutropenia as a sequela of COVID-19 with concern for bone marrow infiltration. The patient was successfully treated with granulocyte colony-stimulating factor.
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Affiliation(s)
- Jarelys M Hernandez
- University of South Florida, Morsani College of Medicine, Department of Internal Medicine, Tampa, Florida, USA
| | - Ross Quarles
- University of South Florida, Morsani College of Medicine, Department of Internal Medicine, Tampa, Florida, USA
| | - Seetha Lakshmi
- University of South Florida, Morsani College of Medicine, Department of Internal Medicine, Tampa, Florida, USA
| | - Beata Casanas
- University of South Florida, Morsani College of Medicine, Department of Internal Medicine, Tampa, Florida, USA
| | - Jennifer Eatrides
- University of South Florida, Morsani College of Medicine, Department of Internal Medicine, Tampa, Florida, USA
| | - Erin McCoy
- Tampa General Hospital, Esoteric Testing, Research & Development, and Microbiology Laboratories, Tampa, Florida, USA
| | - Charurut Somboonwit
- University of South Florida, Morsani College of Medicine, Department of Internal Medicine, Tampa, Florida, USA
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19
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Li R, Chen L, Zhang L, He H, Wang Y, Yang R, Duan C, Liu Y, Wang Y, Zhang Y. [Prokaryotic expression and purification of sheep granulocyte colony stimulating factor for granulosa cell culture]. Sheng Wu Gong Cheng Xue Bao 2020; 36:1817-1827. [PMID: 33164458 DOI: 10.13345/j.cjb.190584] [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] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In order to clarify the regulation of granule cell stimulating factor (GCSF) on granulosa cells, we studied the effect of GCSF on proliferation and apoptosis of in vitro cultured granulosa cells for research on GCSF used in sheep reproduction and breeding. Sheep GCSF protein was prokaryotic expressed and purified. Its bio-activity was measured with M-NSF60 cells. The purified GCSF was added in cell culture medium in experiment groups with non-added as control. Alarmarblue was used to measure cell proliferation, and flow cytometry was used to detect cell cycles and apoptosis. Sheep GCSF could be expressed and purified. Cell activity increased with GCSF concentration from 0.06 to 600 ng/mL at 24 h and 48 h. Cell cycles were significantly different between experiment and control groups at 24 h. Cell ratio of S was significantly reduced (P<0.05) and G2/M phase significantly increased (P<0.05). The apoptosis ratio of experiment group was significantly reduced (P<0.05) at 48 h. In conclusion, GCSF could enhance cell proliferation, inhibit apoptosis, and regulate cell cycles on in vitro cultured sheep granulosa cells.
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Affiliation(s)
- Runting Li
- College of Animal Science and Technology, Hebei Agricultural University, Baoding 071001, Hebei, China.,Molecular Biology Laboratory, Zhengzhou Normal University, Zhengzhou 450044, Henan, China
| | - Longxin Chen
- Molecular Biology Laboratory, Zhengzhou Normal University, Zhengzhou 450044, Henan, China
| | - Limeng Zhang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding 071001, Hebei, China.,Molecular Biology Laboratory, Zhengzhou Normal University, Zhengzhou 450044, Henan, China
| | - Haiying He
- College of Animal Science and Technology, Hebei Agricultural University, Baoding 071001, Hebei, China
| | - Yong Wang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding 071001, Hebei, China
| | - Ruochen Yang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding 071001, Hebei, China
| | - Chunhui Duan
- College of Animal Science and Technology, Hebei Agricultural University, Baoding 071001, Hebei, China
| | - Yueqin Liu
- College of Animal Science and Technology, Hebei Agricultural University, Baoding 071001, Hebei, China
| | - Yuqin Wang
- College of Animal Science & Technology, Henan University of Science and Technology, Luoyang 471023, Henan, China
| | - Yingjie Zhang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding 071001, Hebei, China
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MacDonald K, McBride A, Alrawashdh N, Abraham I. Cost-efficiency and expanded access of prophylaxis for chemotherapy-induced (febrile) neutropenia: economic simulation analysis for the US of conversion from reference pegfilgrastim to biosimilar pegfilgrastim-cbqv. J Med Econ 2020; 23:1466-1476. [PMID: 33023360 DOI: 10.1080/13696998.2020.1833339] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
AIMS In this pharmacoeconomic simulation, we: (1) modeled the cost-efficiency of converting patients from reference pegfilgrastim to biosimilar pegfilgrastim-cbqv for prophylaxis of chemotherapy-induced (febrile) neutropenia (CIN/FN) from the US payer perspective, (2) simulated how savings enable, on a budget-neutral basis, expanded access to pegfilgrastim-cbqv, and (3) estimated the number-needed-to-convert (NNC) to purchase one additional dose of pegfilgrastim-cbqv. METHODS In a hypothetical panel of 20,000 patients, we modeled cost-savings utilizing: two reference formulations (pre-filled syringe [PFS] and on-body injector [OBI]), three medication cost inputs (average sales price [ASP], wholesale acquisition cost [WAC], and an age-proportionate blended ASP/WAC rate), administration cost for injection (PFS) and device application (OBI), conversion rates of 10-100%, and 1-6 cycles of prophylaxis. Cost-savings were used to estimate additional doses of pegfilgrastim-cbqv that could be purchased and the NNC to purchase one additional dose. RESULTS Using ASP and 10% conversion from reference OBI to pegfilgrastim-cbqv, savings range from $326,744 (1 cycle) to $2.0M (6 cycles) which could provide 93-556 additional doses of pegfilgrastim-cbqv, respectively; the NNC to purchase one additional dose of pegfilgrastim-cbqv ranges from 21.6 (1 cycle) down to 3.6 patients (6 cycles). The WAC model saves $41.1M per cycle and $246.7M over 6 cycles at 100% conversion from reference PFS which could provide 9,709-58,253 additional pegfilgrastim-cbqv doses; the NNC ranges from 2.1 (1 cycle) to 0.3 (6 cycles). Using the blended ASP/WAC rate, converting 50% from reference OBI to pegfilgrastim-cbqv would save $10.2M per cycle and $60.9M over 6 cycles providing 2,638-15,829 additional doses of pegfilgrastim-cbqv; NNCs are 3.8 (1 cycle) and 0.6 patients (6 cycles). CONCLUSIONS Converting 20,000 patients from reference to pegfilgrastim-cbqv over 6 cycles can generate savings up to $246.7M, enough to purchase up to 58,253 additional doses of pegfilgrastim-cbqv. This simulation provides economic justification for prophylaxis with biosimilar pegfilgrastim-cbqv.
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Affiliation(s)
| | - Ali McBride
- Medical Center, Banner University, Tucson, AZ, USA
- Cancer Center, University of Arizona, Tucson, AZ, USA
- Department of Pharmacy Practice and Science, College of Pharmacy, University of Arizona, Tucson, AZ, USA
| | - Neda Alrawashdh
- Center for Health Outcomes and PharmacoEconomic Research, University of Arizona, Tucson, AZ, USA
| | - Ivo Abraham
- Matrix45, Tucson, AZ, USA
- Cancer Center, University of Arizona, Tucson, AZ, USA
- Department of Pharmacy Practice and Science, College of Pharmacy, University of Arizona, Tucson, AZ, USA
- Center for Health Outcomes and PharmacoEconomic Research, University of Arizona, Tucson, AZ, USA
- Department of Family and Community Medicine, College of Medicine, University of Arizona, Tucson, AZ, USA
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Dewi KS, Fuad AM. Improving the Expression of Human Granulocyte Colony Stimulating Factor in Escherichia coli by Reducing the GC-content and Increasing mRNA Folding Free Energy at 5'-Terminal End. Adv Pharm Bull 2020; 10:610-616. [PMID: 33072539 PMCID: PMC7539321 DOI: 10.34172/apb.2020.073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 12/24/2019] [Accepted: 01/27/2020] [Indexed: 01/16/2023] Open
Abstract
Purpose: Strategy for improving the production of biopharmaceutical protein continues to develop due to increasing market demand. Human granulocyte colony stimulating factor (hG-CSF) is one of biopharmaceutical proteins that has many applications, and easily produced in Escherichia coli expression system. Previous studies reported that codon usage, rare codon, mRNA folding and GC-content at 5’-terminal end were crucial for protein production in E. coli. In the present study, the effect of reducing the GC-content and increasing the mRNA folding free energy at the 5’-terminal end on the expression level of hG-CSF proteins was investigated. Methods: Synonymous codon substitutions were performed to generate mutant variants of open reading frame (ORF) with lower GC-content at 5’-terminal ends. Oligoanalyzer tool was used to calculate the GC content of eight codons sequence after ATG. Whereas, mRNA folding free energy was predicted using KineFold and RNAfold tools. The template DNA was amplified using three variant forward primers and one same reverse primer. Those DNA fragments were individually cloned into pJexpress414 expression vector and were confirmed using restriction and DNA sequencing analyses. The confirmed constructs were transformed into E. coli NiCo21(DE3) host cells and the recombinant protein was expressed using IPTG-induction. Total protein obtained were characterized using SDS-PAGE, Western blot and ImageJ software analyses. Results: The result showed that the mutant variant with lower GC-content and higher mRNA folding free energy near the translation initiation region (TIR) could produce a higher amount of hG-CSF proteins compared to the original gene sequence. Conclusion: This study emphasized the important role of the nucleotide composition immediately downstream the start codon to achieve high-yield protein product on heterologous expression in E. coli.
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Affiliation(s)
- Kartika Sari Dewi
- Research Center for Biotechnology, Indonesian Institute of Sciences, Cibinong, Bogor, Indonesia, 16911
| | - Asrul Muhamad Fuad
- Research Center for Biotechnology, Indonesian Institute of Sciences, Cibinong, Bogor, Indonesia, 16911
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Singh SK, Kumar D, Rathore AS. Understanding Oxidation Propensity in GCSF and Assessment of its Safety and Efficacy. Pharm Res 2020; 37:207. [PMID: 32996003 DOI: 10.1007/s11095-020-02928-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 09/11/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE To understand the impact of methionine oxidation in GCSF on efficacy (neutrophil production/activation) and safety (biochemical and histopathological changes). METHODS Nine GCSF biosimilars were analyzed for the levels of residual iron and copper content. Oxidation in GCSF was induced by H2O2 treatment and four samples were prepared: wtGCSF (no oxidation), MetO (1138), MetO (1,138,127) and MetO (1138,127,122). These samples were used to evaluate binding affinity with the GCSF receptor (GCSFR) using biolayer interferometry, thermal stability using circular dichroism and in vitro potency using a relevant cell-based assay. In vivo pharmacodynamics examined changes in neutrophil production upon GCSF methionine oxidation, with the outcome correlated with the differential expression of genes implicated in the GCSF mediated neutrophil activation/ maturation. Pre-clinical safety studies including biochemical and histopathological changes were also performed. RESULTS Met 122 and Met 127 have the most deleterious effect on the potency. Lower binding affinity with GCSFR was identified as the underlying cause for lower efficacy and potency. Role of Asp 110 in GCSF as the critical residue having adverse impact on efficacy in context of methionine oxidation has been elucidated. Impairment of in vitro binding affinity with GCSF manifests as in vivo pharmacodynamic differences via differential expression of downstream genes required for neutrophil maturation. CONCLUSION The data from the present study suggests that methionine oxidation in GCSF is a critical quality attribute that needs careful monitoring and control during commercial manufacturing and subsequent supply chain stages.
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Ray GK, Jena RK, Panda T, Sethy S. Prospective identification of potential factors influencing stem cell mobilization and the necessity for plerixafor use in newly diagnosed multiple myeloma patients undergoing autologous stem cell transplantation. Hematol Transfus Cell Ther 2021; 43:402-9. [PMID: 32792260 DOI: 10.1016/j.htct.2020.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 03/13/2020] [Accepted: 04/01/2020] [Indexed: 11/20/2022] Open
Abstract
Introduction To study the efficacy and safety of single large volume leukapheresis by using generic G-CSF or G-CSF plus Plerixafor in achieving adequate stem cell yield and various factors influencing thereof in newly diagnosed multiple myeloma patients undergoing autologous stem cell transplant . Method This prospective study was undertaken among 55 newly diagnosed multiple myeloma patients undergoing autologous stem cell transplant and aged between 18 and 75 years. Mobilization and harvesting of stem cells were performed by using GCSF or GCSF plus Plerixafor and large volume leukapheresis, respectively. A stem cell yield of ≥2 × 106 kg–1 and the number of apheresis procedures were primary efficacy endpoints, while the ideal stem cells yield >5 × 106 kg–1, the engraftment day and D100 response/graft sustainability were secondary endpoints. Result The primary endpoint was achieved in all cases in both the groups by using a single LVL leukapheresis procedure. Fulfillment of all the secondary endpoints was satisfactory and comparable in both the groups. Age, pre-apheresis CD34+ count and number of interruptions during the LVL were significant factors influencing the stem cell yield (p < 0.05). Adverse drug reactions during the apheresis and post-ASCT period were manageable. Conclusion The LVL is safe and cost-effective in attaining a minimum of CD34+ cells in a single procedure with manageable adverse reactions. Judicious intervention during the procedure may be helpful in ensuring the adequate yield.
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McBride A, Wang W, Campbell K, Balu S, MacDonald K, Abraham I. Economic modeling for the US of the cost-efficiency and associated expanded treatment access of conversion to biosimilar pegfilgrastim-bmez from reference pegfilgrastim. J Med Econ 2020; 23:856-863. [PMID: 32323582 DOI: 10.1080/13696998.2020.1760284] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Aims: For this economic analysis, we aimed to model: (1) the cost-efficiency of prophylaxis with biosimilar pegfilgrastim-bmez for chemotherapy-induced (febrile) neutropenia (CIN/FN) compared to reference pegfilgrastim, and (2) the expanded access to CIN/FN prophylaxis and anti-neoplastic treatment that could be achieved with biosimilar cost-savings on a budget-neutral basis.Methods: In a hypothetical panel of 20,000 cancer patients receiving CIN/FN prophylaxis and using the average sales price (ASP) for the second quarter of 2019 for reference pegfilgrastim, we: conducted an ex ante simulation from the payer perspective of the cost-savings of 10-100% conversion from reference to biosimilar pegfilgrastim-bmez using drug price discounting ranging from 10-35%; estimated the budget-neutral expanded access to biosimilar pegfilgrastim-bmez enabled by these cost-savings; and estimated the budget-neutral expanded access to anti-neoplastic treatment with pembrolizumab. The simulations were replicated using fourth quarter 2019 wholesale acquisition cost (WAC) for reference pegfilgrastim and biosimilar pegfilgrastim-bmez in a post facto analysis.Results: In ASP simulations, cost-savings of using pegfilgrastim-bmez over reference pegfilgrastim in a 20,000 patient panel range from $1.3 M (at 15% price discount) to $3 M (35%) at 10% conversion rate and from $6.4 M to $14.9 M, respectively, at 50% conversion. These savings could provide prophylaxis with pegfilgrastim-bmez to an additional 352 (15% discount) to 1,076 patients (35%) at 10% conversion or 1,764-5,384, respectively, at 50% conversion. Alternatively, savings could be reallocated for anti-neoplastic treatment with pembrolizumab to 3 (15% discount) to 9 (35%) patients at 10% conversion or 19-45, respectively, at 50% conversion. When utilizing WAC, cost-savings range from $4.6 M (10% conversion) to $23.1 M (50%) which could provide pegfilgrastim-bmez to an additional 1,174 (10% conversion) to 5,873 patients (50%).Conclusions: Prophylaxis with biosimilar pegfilgrastim-bmez increases the value of cancer care by generating significant cost-savings that could be reallocated to provide expanded access to CIN/FN prevention and anti-neoplastic therapy on a budget-neutral basis.
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Affiliation(s)
- Ali McBride
- Arizona Cancer Center, Banner University Medical Center, Tucson, AZ, USA
- College of Pharmacy, University of Arizona Health Sciences Center, Tucson, AZ, USA
- Department of Pharmacy Practice and Science College of Pharmacy, University of Arizona, Tucson, AZ, USA
| | - Weijia Wang
- Department of Health Economics and Outcome Research, Sandoz Inc, Princeton, NJ, USA
| | - Kim Campbell
- Department of Health Economics and Outcome Research, Sandoz Inc, Princeton, NJ, USA
| | - Sanjeev Balu
- Novartis Pharmaceuticals Corporation, East Hanover, NJ, USA
| | | | - Ivo Abraham
- College of Pharmacy, University of Arizona Health Sciences Center, Tucson, AZ, USA
- Department of Pharmacy Practice and Science College of Pharmacy, University of Arizona, Tucson, AZ, USA
- MATRIX45, Tucson, AZ, USA
- Center for Health Outcomes and PharmacoEconomic Research, University of Arizona, Tucson, AZ, USA
- Department of Family and Community Medicine College of Medicine - Tucson, University of Arizona, Tucson, AZ, USA
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Stump SE, Trepte M, Shaw JR, Grgic T, Ptachcinski JR, Sharf A, Riches M, Shea TC, Park YA, Alexander MD. Evaluation of mobilization efficacy with an extended interval following plerixafor administration. J Oncol Pharm Pract 2020; 26:1590-1597. [PMID: 32063103 DOI: 10.1177/1078155219900909] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Plerixafor is a hematopoietic stem cell mobilizing agent used in combination with granulocyte-colony stimulating factor to improve collection for autologous stem cell transplantation. Despite a recommendation for administration 11 h prior to apheresis per package labeling, logistical challenges lead many institutions to administer plerixafor at an extended interval. The purpose of this study was to determine if plerixafor effectively and efficiently mobilizes CD34+ cells when given at an extended interval prior to apheresis. This was a retrospective evaluation of adult patients who received plerixafor based on an algorithm reserving daily plerixafor only for patients with a pre-apheresis CD34+ count of < 20 cells/µL (pre-apheresis plerixafor) or with a low CD34+ yield after the first apheresis session (rescue plerixafor). The primary outcome was achievement of a disease-specific collection goal of ≥ 6 ×106 CD34+ cells/kg for multiple myeloma and ≥ 4 ×106 CD34+ cells/kg for lymphoma. The mean interval between plerixafor administration and apheresis was 17 h in this study. Despite this extended interval, 64% of patients met their disease-specific collection goal. A minimum collection goal of ≥ 2 ×106 CD34+ cells/kg was achieved by 95% of patients. Mobilization remained efficient with a median of two days to complete collection. Based on this data, plerixafor effectively and efficiently mobilizes CD34+ cells when given at an extended interval prior to apheresis.
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Affiliation(s)
- Sarah E Stump
- Department of Pharmacy, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Morgan Trepte
- Department of Pharmacy, Northside Hospital, Atlanta, GA, USA
| | - J Ryan Shaw
- Department of Pharmacy, University of North Carolina Medical Center, Chapel Hill, NC, USA
| | - Tatjana Grgic
- Department of Pharmacy, University of North Carolina Medical Center, Chapel Hill, NC, USA
| | - Jonathan R Ptachcinski
- Department of Pharmacy, University of North Carolina Medical Center, Chapel Hill, NC, USA
| | - Andrew Sharf
- Bone Marrow Transplant and Cellular Therapy Program, University of North Carolina Medical Center, Chapel Hill, NC, USA
| | - Marcie Riches
- Bone Marrow Transplant and Cellular Therapy Program, University of North Carolina Medical Center, Chapel Hill, NC, USA.,UNC Lineberger Comprehensive Cancer Center, Chapel Hill, NC, USA
| | - Thomas C Shea
- Bone Marrow Transplant and Cellular Therapy Program, University of North Carolina Medical Center, Chapel Hill, NC, USA.,UNC Lineberger Comprehensive Cancer Center, Chapel Hill, NC, USA
| | - Yara A Park
- Department of Pathology and Laboratory Medicine, University of North Carolina Medical Center, Chapel Hill, NC, USA
| | - Maurice D Alexander
- Department of Pharmacy, University of North Carolina Medical Center, Chapel Hill, NC, USA
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Philips CA, Augustine P, Ahamed R, Rajesh S, George T, Valiathan GC, John SK. Role of Granulocyte Colony-stimulating Factor Therapy in Cirrhosis, 'Inside Any Deep Asking Is the Answering'. J Clin Transl Hepatol 2019; 7:371-383. [PMID: 31915607 PMCID: PMC6943215 DOI: 10.14218/jcth.2019.00034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 09/20/2019] [Accepted: 10/05/2019] [Indexed: 12/13/2022] Open
Abstract
Liver cirrhosis progresses through multiple clinical stages which culminate in either death or liver transplantation. Availability of organs, timely listing and prompt receipt of donor-livers pose difficulties in improving transplant-listed and transplant outcomes. In this regard, regenerative therapies, particularly with granulocyte colony-stimulating factor (GCSF), has become a lucrative option for improving transplant-free survival. However, the literature is confusing with regards to patient selection and real outcomes. In this exhaustive review, we describe the basics of liver fibrosis and cirrhosis through novel insights from a therapeutic point of view, discuss preclinical studies on GCSF in advanced liver disease to improve on clinical utility, shed light on the pertinent literature of GCSF in advanced cirrhosis, and provide astute inputs on growth factor therapy in decompensated cirrhosis.
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Affiliation(s)
- Cyriac Abby Philips
- The Liver Unit and Monarch Liver Lab, Cochin Gastroenterology Group, Ernakulam Medical Centre, Kochi, Kerala, India
| | - Philip Augustine
- Department of Gastroenterology, Cochin Gastroenterology Group, Ernakulam Medical Centre, Kochi, Kerala, India
| | - Rizwan Ahamed
- Department of Gastroenterology, Cochin Gastroenterology Group, Ernakulam Medical Centre, Kochi, Kerala, India
| | - Sasidharan Rajesh
- Interventional Radiology, Hepatobiliary Division, Cochin Gastroenterology Group, Ernakulam Medical Centre, Kochi, Kerala, India
| | - Tom George
- Interventional Radiology, Hepatobiliary Division, Cochin Gastroenterology Group, Ernakulam Medical Centre, Kochi, Kerala, India
| | - Gopakumar C. Valiathan
- Department of Hepatobiliary and Transplant Surgery, Cochin Gastroenterology Group, Ernakulam Medical Centre, Kochi, Kerala, India
| | - Solomon K. John
- Department of Hepatobiliary and Transplant Surgery, Cochin Gastroenterology Group, Ernakulam Medical Centre, Kochi, Kerala, India
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Lee CF, Zhou K, Young WM, Wong CS, Ng TY, Lee SF, Leung K, Wong LKM, So KH, Tang W, Chong G, Chan SK, Yip YTE, Ma VYM, Yeung A, Chin CHY, Kwan MW, Tsang HT. Febrile neutropenia and its associated hospitalization in breast cancer patients on docetaxel-containing regimen: A retrospective cohort study on duration of prophylactic GCSF administration. Support Care Cancer 2019; 28:3801-3812. [PMID: 31832822 DOI: 10.1007/s00520-019-05111-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 08/04/2019] [Accepted: 09/30/2019] [Indexed: 01/03/2023]
Abstract
PURPOSE To compare febrile neutropenia (FN) incidence and hospitalization among breast cancer patients on docetaxel with no granulocyte colony-stimulating factors (GCSF) primary prophylaxis (PP), 4/5-day PP, or 7-day PP. METHODS We identified 3916 breast cancer patients using docetaxel-cyclophosphamide (TC), doxorubicin-cyclophosphamide then docetaxel (AC-T), fluorouracil-epirubicin-cyclophosphamide then docetaxel (FEC-T), docetaxel-carboplatin-trastuzumab (TJH), or docetaxel-doxorubicin-cyclophosphamide (TAC) from a hospital pharmacy dispensing database in Hong Kong between 2014 and 2016. Patients were offered GCSF within 5 days since administering docetaxel. Outcomes included FN incidence, time to first hospitalization, hospitalization rate, and duration. RESULTS In TC regimen, FN incidence (with odds ratio, OR) of patients with no PP, 4/5-day PP, and 7-day PP was 21.69%, 7.95% (OR 0.31, p < 0.001), and 5.33% (OR 0.20, p < 0.001), respectively. In TJH regimen, FN incidence of patients with no PP, 4/5-day PP, and 7-day PP was 38.26%, 8.33% (OR 0.15, p < 0.001), and 8.57% (OR 0.15, p < 0.001), respectively. FN incidence of patients on AC-T regimen with no PP and 4/5-day PP was 20.93% and 6.84%, respectively (OR 0.28, p = 0.005); with FEC-T regimen, the incidence was 9.91% and 4.77%, respectively (OR 0.46, p = 0.035). Only 3.27% FN cases were not hospitalized. Mean (±standard deviation, SD) time to first hospitalization was 8.21 ± 2.44 days. Mean (±SD) duration of hospitalization for patients with no PP, 4/5-day PP, and 7-day PP was 4.66 ± 2.60, 4.37 ± 2.85, and 5.12 ± 2.97 days, respectively. CONCLUSION GCSF prophylaxis in breast cancer patients on docetaxel could reduce FN incidence and hospitalization. 4/5-day PP demonstrated similar efficacy to 7-day PP with superior saving benefits on healthcare expenditure.
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Affiliation(s)
- C F Lee
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong. .,Department of Pharmacy, Tuen Mun Hospital, Tuen Mun, Hong Kong.
| | - K Zhou
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - W M Young
- Department of Pharmacy, Tuen Mun Hospital, Tuen Mun, Hong Kong.,COC Pharmaceutical Service - Oncology Working Group, Hospital Authority, Kowloon, Hong Kong
| | - C S Wong
- Department of Clinical Oncology, Tuen Mun Hospital, Tuen Mun, Hong Kong
| | - T Y Ng
- Department of Clinical Oncology, Tuen Mun Hospital, Tuen Mun, Hong Kong
| | - S F Lee
- Department of Clinical Oncology, Tuen Mun Hospital, Tuen Mun, Hong Kong
| | - K Leung
- COC Pharmaceutical Service - Oncology Working Group, Hospital Authority, Kowloon, Hong Kong.,Department of Pharmacy, Queen Mary Hospital, Pok Fu Lam, Hong Kong
| | - L K M Wong
- COC Pharmaceutical Service - Oncology Working Group, Hospital Authority, Kowloon, Hong Kong.,Department of Pharmacy, Queen Elizabeth Hospital, Kowloon, Hong Kong
| | - K H So
- COC Pharmaceutical Service - Oncology Working Group, Hospital Authority, Kowloon, Hong Kong.,Department of Pharmacy, Prince of Wales Hospital, Sha Tin, Hong Kong
| | - W Tang
- COC Pharmaceutical Service - Oncology Working Group, Hospital Authority, Kowloon, Hong Kong.,Department of Pharmacy, United Christian Hospital, Kwun Tong, Hong Kong
| | - G Chong
- COC Pharmaceutical Service - Oncology Working Group, Hospital Authority, Kowloon, Hong Kong.,Department of Pharmacy, United Christian Hospital, Kwun Tong, Hong Kong
| | - S K Chan
- Department of Pharmacy, Princess Margaret Hospital, Kwai Chung, Hong Kong
| | - Y T E Yip
- COC Pharmaceutical Service - Oncology Working Group, Hospital Authority, Kowloon, Hong Kong.,Department of Pharmacy, Princess Margaret Hospital, Kwai Chung, Hong Kong
| | - V Y M Ma
- COC Pharmaceutical Service - Oncology Working Group, Hospital Authority, Kowloon, Hong Kong.,Department of Pharmacy, Pamela Youde Nethersole Eastern Hospital, Chai Wan, Hong Kong
| | - A Yeung
- Department of Pharmacy, Pamela Youde Nethersole Eastern Hospital, Chai Wan, Hong Kong
| | - C H Y Chin
- Department of Pharmacy, Pamela Youde Nethersole Eastern Hospital, Chai Wan, Hong Kong
| | - M W Kwan
- Department of Pharmacy, Queen Elizabeth Hospital, Kowloon, Hong Kong
| | - H T Tsang
- Department of Pharmacy, Queen Elizabeth Hospital, Kowloon, Hong Kong
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Du HH, Huang HQ, Si KW, Dai HF, Hu YH. Granulocyte colony stimulating factor ( GCSF) of Japanese flounder (Paralichthys olivaceus): Immunoregulatory property and anti-infectious function. Fish Shellfish Immunol 2019; 89:27-34. [PMID: 30910614 DOI: 10.1016/j.fsi.2019.03.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 12/27/2018] [Revised: 02/02/2019] [Accepted: 03/08/2019] [Indexed: 06/09/2023]
Abstract
Granulocyte colony stimulating factor (GCSF) is a key regulator of neutrophil production, and plays a vital role in immune response of mammals and teleost against pathogen. Sequences of GCSF were identified in several teleost species, however, the function and activity of GCSF in teleost remain largely unknown. In this study, we examined the biological activity and the immunomodulatory property of a GCSF homologue, PoGCSF, from Japanese flounder (Paralichthys olivaceus). Structural analysis showed that PoGCSF possesses conserved structural characteristics of GCSF proteins, including a signal peptide and a typical IL-6 domain. The expression of PoGCSF was upregulated in a time-dependent manner by extracellular and intracellular bacterial pathogens and viral pathogen. Different expression patterns were exhibited in response to the infection of different types of microbial pathogens in different immune tissues. Recombinant PoGCSF increased the capability of host cells to defense against pathogen infection and enhanced the expression of immune related genes. The knockdown of PoGCSF attenuated the ability of host cells to eliminate pathogenic bacteria. In vivo results showed that overexpression of PoGCSF promoted the host defense against invading pathogenic microorganism. Collectively, this study is the first report about the immunoregulatory property and anti-infectious immunity of GCSF in teleost. These findings suggested that PoGCSF serves as an immune-related cytokine and plays an important role in the immune defense system of Japanese flounder.
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Affiliation(s)
- He-He Du
- Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China; Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Haikou, 571101, China
| | - Hui-Qin Huang
- Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China; Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Haikou, 571101, China
| | - Kai-Wei Si
- BGI-Shenzhen, Shenzhen, Guangdong, 518083, China
| | - Hao-Fu Dai
- Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China; Hainan Key Laboratory for Research and Development of Natural Products from Li Folk Medicine, China
| | - Yong-Hua Hu
- Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China; Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Haikou, 571101, China.
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Siahmazgi MG, Khalili MAN, Ahmadpour F, Khodadadi S, Zeinoddini M. In Silico Design of Fusion Toxin DT 389GCSF and a Comparative Study. Curr Comput Aided Drug Des 2018; 16:238-244. [PMID: 30318000 DOI: 10.2174/1573409914666181012151242] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 09/27/2018] [Accepted: 10/06/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND Chemotherapy and radiotherapy have negative effects on normal tissues and they are very expensive and lengthy treatments. These disadvantages have recently attracted researchers to the new methods that specifically affect cancerous tissues and have lower damage to normal tissues. One of these methods is the use of intelligent recombinant fusion toxin. The fusion toxin DTGCSF, which consists of linked Diphtheria Toxin (DT) and Granulocyte Colony Stimulate Factor (GCSF), was first studied by Chadwick et al. in 1993 where HATPL linker provided the linking sequence between GCSF and the 486 amino acid sequences of DT. METHODS In this study, the fusion toxin DT389GCSF is evaluated for functional structure in silico. With the idea of the commercial fusion toxin of Ontak, the DT in this fusion protein is designed incomplete for 389 amino acids and is linked to the beginning of the GCSF cytokine via the SG4SM linker (DT389GCSF). The affinity of the DT389GCSF as a ligand with GCSF-R as receptor was compared with DT486GCSF as a ligand with GCSF-R as receptor. Both DT486GCSF and its receptor GCSF-R have been modeled by Easy Modeler2 software. Our fusion protein (DT389GCSF) and GCSF-R are modeled through Modeller software; all of the structures were confirmed by server MDWEB and VMD software. Then, the interaction studies between two proteins are done using protein-protein docking (HADDOCK 2.2 web server) for both the fusion protein in this study and DT486GCSF. RESULTS The HADDOCK results demonstrate that the interaction of DT389GCSF with GCSF-R is very different and has a more powerful interaction than DT486GCSF with GCSF-R. CONCLUSION HADDOCK web server is operative tools for evaluation of protein-protein interactions, therefore, in silico study of DT389GCSF will help with studying the function and the structure of these molecules. Moreover, DT389GCSF may have important new therapeutic applications.
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Affiliation(s)
| | | | - Fathollah Ahmadpour
- Trauma Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
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McBride A, Campbell K, Bikkina M, MacDonald K, Abraham I, Balu S. Cost-efficiency analyses for the US of biosimilar filgrastim-sndz, reference filgrastim, pegfilgrastim, and pegfilgrastim with on-body injector in the prophylaxis of chemotherapy-induced (febrile) neutropenia. J Med Econ 2017; 20:1083-1093. [PMID: 28722494 DOI: 10.1080/13696998.2017.1358173] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AIMS Guidelines recommend prophylaxis with granulocyte colony-stimulating factor for chemotherapy-induced (febrile) neutropenia (CIN/FN) based on regimen myelotoxicity and patient-related risk factors. The aim was to conduct a cost-efficiency analysis for the US of the direct acquisition and administration costs of the recently approved biosimilar filgrastim-sndz (Zarxio EP2006) with reference to filgrastim (Neupogen), pegfilgrastim (Neulasta), and a pegfilgrastim injection device (Neulasta Onpro; hereafter pegfilgrastim-injector) for CIN/FN prophylaxis. METHODS A cost-efficiency analysis of the prophylaxis of one patient during one chemotherapy cycle under 1-14 days' time horizon was conducted using the unit dose average selling price (ASP) and Current Procedural Terminology (CPT) codes for subcutaneous prophylactic injection under four scenarios: cost of medication only (COSTMED), patient self-administration (SELFADMIN), healthcare provider (HCP) initiating administration followed by self-administration (HCPSTART), and HCP providing full administration (HCPALL). Two case studies were created to illustrate real-world clinical implications. The analyses were replicated using wholesale acquisition cost (WAC). RESULTS Using ASP + CPT, cost savings achieved with filgrastim-sndz relative to reference filgrastim ranged from $65 (1 day) to $916 (14 days) across all scenarios. Relative to pegfilgrastim, savings with filgrastim-sndz ranged from $834 (14 days) up to $3,666 (1 day) under the COSTMED, SELFADMIN, and HPOSTART scenarios; and from $284 (14 days) up to $3,666 (1 day) under the HPOALL scenario. Similar to the cost-savings compared to pegfilgrastim, filgrastim-sndz achieved savings relative to pegfilgrastim-injector: from $834 (14 days) to $3,666 (1 day) under the COSTMED scenario, from $859 (14 days) to $3,692 (1 day) under SELFADMIN, from $817 (14 days) to $3,649 (1 day) under HPOSTART, and from $267 (14 days) to $3,649 (1 day) under HPOALL. Cost savings of filgrastim-sndz using WAC + CPT were even greater under all scenarios. CONCLUSIONS Prophylaxis with filgrastim-sndz, a biosimilar filgrastim, was associated consistently with significant cost-savings over prophylaxis with reference filgrastim, pegfilgrastim, and pegfilgrastim-injector, and this across various administration scenarios.
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Affiliation(s)
- Ali McBride
- a Banner University Medical Center , Tucson , AZ , USA
- b University of Arizona Cancer Center , Tucson , AZ , USA
- c Department of Pharmacy Practice and Science, College of Pharmacy , University of Arizona , Tucson , AZ , USA
| | | | | | | | - Ivo Abraham
- b University of Arizona Cancer Center , Tucson , AZ , USA
- c Department of Pharmacy Practice and Science, College of Pharmacy , University of Arizona , Tucson , AZ , USA
- e Matrix45 , Tucson , AZ , USA
- f Center for Health Outcomes and PharmacoEconomic Research , University of Arizona , Tucson , AZ , USA
- g Department of Family and Community Medicine, College of Medicine-Tucson , University of Arizona , Tucson , AZ , USA
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Muluneh B, Buhlinger K, Deal AM, Zeidner JF, Foster MC, Jamieson KJ, Bates J, Van Deventer HW. A Comparison of Clofarabine-based (GCLAC) and Cladribine-based (CLAG) Salvage Chemotherapy for Relapsed/Refractory AML. Clin Lymphoma Myeloma Leuk 2017; 18:e13-e18. [PMID: 29100976 DOI: 10.1016/j.clml.2017.09.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 09/05/2017] [Accepted: 09/15/2017] [Indexed: 11/24/2022]
Abstract
BACKGROUND Salvage regimens for patients with relapsed/refractory acute myeloid leukemia (rrAML) lack comparative data for superiority. Thus, we conducted a retrospective analysis of clofarabine-based (GCLAC; granulocyte colony-stimulating factor [filgrastim], clofarabine, high-dose cytarabine) versus cladribine-based (CLAG; cladribine, cytarabine, granulocyte colony-stimulating factor [filgrastim]) regimens in rrAML. PATIENTS AND METHODS We identified 41 consecutive patients with rrAML who had received either GCLAC or CLAG from 2011 to 2014. The primary outcome measure was the complete remission (CR) rate defined according to the International Working Group criteria. The secondary outcomes included the proportion of patients who underwent allogenic stem cell transplantation and the rate of relapse-free survival and overall survival. RESULTS We found no significant differences in the baseline characteristics of the patients treated with GCLAC (n = 22) or CLAG (n = 19). The outcomes with these 2 regimens were not significantly different. Patients treated with GCLAC had a CR/CR with incomplete blood count recovery rate of 64% compared with 47% for the patients treated with CLAG (P = .36). Of the GCLAC patients, 45% underwent allogeneic stem cell transplantation compared with 26% of the CLAG patients (P = .32). The median relapse-free survival after GCLAC and CLAG was 1.59 years and 1.03 years, respectively (P = .75). The median overall survival after GCLAG and CLAG was 1.03 years and 0.70 years, respectively (P = .08). The drug costs were significantly different for GCLAC versus CLAG. Using an average wholesale price, the cost per patient per cycle was $60,821.60 for GCLAC and $4910.60 for CLAG. CONCLUSION A single-institutional retrospective analysis found no significant differences in the outcomes between GCLAC and CLAG for rrAML patients, although formal comparisons should be performed in a randomized clinical trial. The cost of GCLAC was greater than that of CLAG, which should be considered when evaluating the choice for the salvage chemotherapy options.
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Affiliation(s)
- Benyam Muluneh
- Department of Pharmacy, University of North Carolina Medical Center, Chapel Hill, NC; University of North Carolina Eshelman School of Pharmacy, Chapel Hill, NC.
| | - Kaitlyn Buhlinger
- Department of Pharmacy, University of North Carolina Medical Center, Chapel Hill, NC
| | - Allison M Deal
- Biostatistics and Clinical Data Management Core, University of North Carolina, Chapel Hill, NC
| | - Joshua F Zeidner
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC; Department of Medicine, University of North Carolina, Chapel Hill, NC
| | - Matthew C Foster
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC; Department of Medicine, University of North Carolina, Chapel Hill, NC
| | - Katarzyna Joanna Jamieson
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC; Department of Medicine, University of North Carolina, Chapel Hill, NC
| | - Jill Bates
- Department of Pharmacy, University of North Carolina Medical Center, Chapel Hill, NC
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Spadaccio C, Nappi F, De Marco F, Sedati P, Taffon C, Nenna A, Crescenzi A, Chello M, Trombetta M, Gambardella I, Rainer A. Implantation of a Poly-L-Lactide GCSF-Functionalized Scaffold in a Model of Chronic Myocardial Infarction. J Cardiovasc Transl Res 2017; 10:47-65. [PMID: 28116550 DOI: 10.1007/s12265-016-9718-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 11/03/2016] [Indexed: 12/17/2022]
Abstract
A previously developed poly-l-lactide scaffold releasing granulocyte colony-stimulating factor (PLLA/GCSF) was tested in a rabbit chronic model of myocardial infarction (MI) as a ventricular patch. Control groups were constituted by healthy, chronic MI and nonfunctionalized PLLA scaffold. PLLA-based electrospun scaffold efficiently integrated into a chronic infarcted myocardium. Functionalization of the biopolymer with GCSF led to increased fibroblast-like vimentin-positive cellular colonization and reduced inflammatory cell infiltration within the micrometric fiber mesh in comparison to nonfunctionalized scaffold; PLLA/GCSF polymer induced an angiogenetic process with a statistically significant increase in the number of neovessels compared to the nonfunctionalized scaffold; PLLA/GCSF implanted at the infarcted zone induced a reorganization of the ECM architecture leading to connective tissue deposition and scar remodeling. These findings were coupled with a reduction in end-systolic and end-diastolic volumes, indicating a preventive effect of the scaffold on ventricular dilation, and an improvement in cardiac performance.
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Clark LH, Moll S, Houghton D, O'Connor S, Soper JT. Leukocytosis due to markedly elevated granulocyte-colony stimulating factor levels in a patient with endometrial cancer: Case report and literature review. Gynecol Oncol Rep 2017; 20:5-8. [PMID: 28180148 PMCID: PMC5288325 DOI: 10.1016/j.gore.2017.01.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 01/07/2017] [Accepted: 01/18/2017] [Indexed: 11/20/2022] Open
Abstract
Granulocyte-colony stimulating factor (GCSF) secretion by gynecologic tumors is rare. Elevations in serum GCSF can be seen in the absence of tumor GSCF secretion. Extreme leukocytosis is associated with autocrine tumor growth and poor prognosis.
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Affiliation(s)
- Leslie H. Clark
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, University of North Carolina, United States
- Corresponding author at: Gynecologic Oncology, University of North Carolina, 101 Manning Drive, CB 7572, Chapel Hill, NC 27599-7572, United States.Gynecologic OncologyUniversity of North Carolina101 Manning DriveCB 7572Chapel HillNC27599-7572United States
| | - Stephan Moll
- Department of Medicine, Division of Hematology-Oncology, University of North Carolina School of Medicine, United States
| | - Damon Houghton
- Department of Medicine, Division of Hematology-Oncology, University of North Carolina School of Medicine, United States
| | - Siohban O'Connor
- Department of Pathology, University of North Carolina School of Medicine, United States
| | - John T. Soper
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, University of North Carolina, United States
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Eftekhar M, Miraj S, Farid Mojtahedi M, Neghab N. Efficacy of Intrauterine infusion of granulocyte colony stimulating factor on patients with history of implantation failure: A randomized control trial. Int J Reprod Biomed 2016; 14:687-690. [PMID: 27981253 PMCID: PMC5153573] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Although pregnancy rate in in vitro fertilization-embryo transfer (IVF-ET) cycles has been increased over the preceding years, but the majority of IVF-ET cycles still fail. Granulocyte colony stimulating factor (GCSF) is a glycoprotein that stimulates cytokine growth factor and induces immune system which may improve pregnancy rate in women with history of implantation failure. OBJECTIVE The aim of this study was to evaluate GCSF ability to improve pregnancy rate in women with history of implantation failure. MATERIALS AND METHODS 0.5 ml (300 µg/ml) GCSF was infused intrauterine in intervention group. Pregnancy outcomes were assessed based on clinical pregnancy. RESULTS The mean age of participants was 31.95±4.71 years old. There were no significant differences between demographic characteristics in two groups (p>0.05). The pregnancy outcome in GCSF group was improved significantly (p=0.043). CONCLUSION GCSF can improve pregnancy outcome in patients with history of implantation failure.
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Affiliation(s)
- Maryam Eftekhar
- Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
| | - Sepideh Miraj
- Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Department of Obstetrics and Gynecology, School of Medicine, Shahrekord University of Medical Sciences, Shahrekord, Iran.
| | - Maryam Farid Mojtahedi
- Department of Obstetrics and Gynecology, Endocrinology and Female Infertility Unit, Roointan Arash Women’s Health Research and Educational Hospital, Tehran University of Medical Sciences, Tehran, Iran.
| | - Nosrat Neghab
- Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
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Zage PE, Whittle SB, Shohet JM. CD114: A New Member of the Neural Crest-Derived Cancer Stem Cell Marker Family. J Cell Biochem 2016; 118:221-231. [PMID: 27428599 DOI: 10.1002/jcb.25656] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [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: 07/14/2016] [Accepted: 07/15/2016] [Indexed: 12/13/2022]
Abstract
The neural crest is a population of cells in the vertebrate embryo that gives rise to a wide range of tissues and cell types, including components of the peripheral nervous system and the craniofacial skeleton as well as melanocytes and the adrenal medulla. Aberrations in neural crest development can lead to numerous diseases, including cancers such as melanoma and neuroblastoma. Cancer stem cells (CSCs) have been identified in these neural crest-derived tumors, and these CSCs demonstrate resistance to treatment and are likely key contributors to disease relapse. Patients with neural crest-derived tumors often have poor outcomes due to frequent relapses, likely due to the continued presence of residual treatment-resistant CSCs, and therapies directed against these CSCs are likely to improve patient outcomes. CSCs share many of the same genetic and biologic features of primordial neural crest cells, and therefore a better understanding of neural crest development will likely lead to the development of effective therapies directed against these CSCs. Signaling through STAT3 has been shown to be required for neural crest development, and granulocyte colony stimulating factor (GCSF)-mediated activation of STAT3 has been shown to play a role in the pathogenesis of neural crest-derived tumors. Expression of the cell surface marker CD114 (the receptor for GCSF) has been identified as a potential marker for CSCs in neural crest-derived tumors, suggesting that CD114 expression and function may contribute to disease relapse and poor patient outcomes. Here we review the processes of neural crest development and tumorigenesis and we discuss the previously identified markers for CSC subpopulations identified in neural crest tumors and their role in neural crest tumor biology. We also discuss the potential for CD114 and downstream intracellular signaling pathways as potential targets for CSC-directed therapy. J. Cell. Biochem. 118: 221-231, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Peter E Zage
- Division of Hematology-Oncology, Department of Pediatrics, University of California San Diego, La Jolla, California.,Peckham Center for Cancer and Blood Disorders, Rady Children's Hospital, San Diego, California
| | - Sarah B Whittle
- Department of Pediatrics, Section of Hematology-Oncology, Children's Cancer Center, Houston, Texas
| | - Jason M Shohet
- Department of Pediatrics, Section of Hematology-Oncology, Children's Cancer Center, Houston, Texas.,Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, Texas
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Abstract
Febrile neutropenia is common chemotherapy complication significantly impacting patient’s outcomes, quality of life and costs, too. Febrile neutropenia (FN) often leads to hospitalization, the need for intravenous antibiotics and use of granulocyte colony-stimulating factors (GCSF) in order to avoid its complications. Cost of febrile neutropenia is well described in literature, but no study has been performed in Bosnia and Herzegovina. We have conducted observational cohort study with aim to describe and present costs of FN treatment from payers’ (provider’s) perspective. Only direct medical costs from one middle-sized oncology Clinic in Bosnia and Herzegovina database have been included and presented. We found that overall cost in five months period (January-May 2015) were almost 30.000 euros, or 1.0035 euro per episode/patient in average. The highest cost are allocated to hospitalization (40%), followed by GCSF (36%), while rest of costs are generated by laboratory tests performed and drug application. Proportion of costs is in line with other published studies even with huge differences in absolute values, mainly to low prices of services in Bosnia and Herzegovina. This was the first study on costs of chemotherapy induced FN in Bosnia and Herzegovina suggesting that significant costs are inquired by this conditions and that further research should be performed including larger patient population and other clinical oncology data, including pharmacoeconomic analysis.
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Affiliation(s)
- Tarik Catic
- ISPOR Bosnia and Herzegovina Regional Chapter, Bosnia and Herzegovina
| | | | - Samra Sulejmanovic
- County Zenica Hospital, Oncology Clinic, Department of Oncology and Radiotherapy, Bosnia and Herzegovina
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Abstract
INTRODUCTION Bacterial infections are a serious complication of cirrhosis, as they can lead to decompensation, multiple organ failure, and/or death. Preventing infections is therefore very relevant. Because gut bacterial translocation is their main pathogenic mechanism, prevention of infections is mostly based on the use of orally administered poorly absorbed antibiotics such as norfloxacin (selective intestinal decontamination). However, antibiotic prophylaxis leads to antibiotic resistance, limiting therapy and increasing morbidity and mortality. Prevention of bacterial infections in cirrhosis should therefore move away from antibiotics. AREAS COVERED This review focuses on various potentially novel methods to prevent infections in cirrhosis focusing on non-antibiotic strategies. The use of probiotics, nonselective intestinal decontamination with rifaximin, prokinetics and beta-blockers or fecal microbiota transplant as means of targeting altered gut microbiota, bile acids and FXR agonists are all potential alternatives to selective intestinal decontamination. Prokinetics and beta-blockers can improve intestinal motility, while bile acids and FXR agonists help by improving the intestinal barrier. Finally, granulocyte colony stimulating factor (G-CSF) and statins are emerging therapeutic strategies that may improve immune dysfunction in cirrhosis. EXPERT OPINION Evidence for these strategies has been restricted to animal studies and proof-of concept studies but we expect this to change in coming years.
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Talebkhan Y, Samadi T, Samie A, Barkhordari F, Azizi M, Khalaj V, Mirabzadeh E. Expression of granulocyte colony stimulating factor ( GCSF) in Hansenula polymorpha. Iran J Microbiol 2016; 8:21-8. [PMID: 27092221 PMCID: PMC4833737] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND AND OBJECTIVES During past decades Hansenula polymorpha has attracted global attention for the expression of recombinant proteins due to its high growth rate, minimal nutritional porequirements and use of methanol as a low cost inducer. MATERIALS AND METHODS The corresponding nucleotide sequences for the expression of heterologous genes in Hansenula poylmorpha were extracted and assembled in an E. coli vector. The constructed expression cassette included formate dehydrogenase promoter (pFMD), a secretory signal sequence, a multiple cloning site (MCS) and methanol oxidase (MOX) terminator. Zeocin resistance gene fragment and complete cDNA encoding granulocyte colony stimulating factor (GCSF) were cloned downstream of the expression cassette in-frame with signal sequence. Restriction mapping and sequence analysis confirmed the correct cloning procedures. Final vector was transformed into Hansenula and recombinant host was induced for the expression of GCSF protein by adding methanol. SDS-PAGE and immuno-blotting were performed to confirm the identity of r-GCSF. RESULTS The expression cassette containing gcsf gene (615bp) and zeocin resistance marker (sh-ble, 1200bp) was prepared and successfully transformed into competent Hansenula polymorpha cells via electroporation. Zeocin resistant colonies were selected and GCSF expression was induced in recombinant Hansenula transformants using 0.5% methanol and an approximately 19kDa protein was observed on SDS-PAGE. Western blot analysis using serum isolated from GCSF-treated rabbit confirmed the identity of the protein. CONCLUSIONS Molecular studies confirmed the designed expression cassette containing gcsf gene along with pFMD and signal sequence. The expressed 19kDa protein also confirmed the ability of designed vector in expressing heterologous genes in Hansenula cells.
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Affiliation(s)
- Yeganeh Talebkhan
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran,Corresponding author: Yeganeh Talebkhan Garoosi, Biotechnology Research Center, Pasteur Institute of Iran, No. 69, Pasteur Ave. 13164, Tehran, Iran, Tel/Fax: + 98-21-66480780, E-mail: ;
| | - Tannaz Samadi
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Armin Samie
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran,Department of Biology, Azad University of Damghan, Iran
| | | | - Mohammad Azizi
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Vahid Khalaj
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Esmat Mirabzadeh
- Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
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Mishra VV, Choudhary S, Sharma U, Aggarwal R, Agarwal R, Gandhi K, Goraniya N. Effects of Granulocyte Colony-Stimulating Factor ( GCSF) on Persistent Thin Endometrium in Frozen Embryo Transfer (FET) Cycles. J Obstet Gynaecol India 2016; 66:407-11. [PMID: 27651638 DOI: 10.1007/s13224-015-0775-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 08/17/2015] [Indexed: 10/23/2022] Open
Abstract
OBJECTIVE To predict the effectiveness of granulocyte colony-stimulating factor (GCSF) in the treatment of persistent thin endometrium resistant to other treatments in frozen embryo transfer (FET) cycles. STUDY DESIGN This is a hospital-based prospective study. PATIENTS Thirty-five women with persistent thin endometrium (<7 mm) resistant to standard treatments were involved in this study. INTERVENTIONS Intrauterine infusion of GCSF (300 mcg/1 ml) was done in patients with thin endometrium on day 14 of FET cycles, and their endometrial thicknesses were measured after 48 h of infusion. MAIN OUTCOME MEASURES The primary outcome was an increase in endometrial thickness and the secondary outcome measures were chemical and clinical pregnancies. RESULTS The endometrial thickness increased from 5.86 ± 0.58 to 6.58 ± 0.84 mm after GCSF infusion. In 19 of the 35 participants (54.28 %) endometrial thickness increased to ≥7 mm and they subsequently underwent embryo transfer. Of these, 3 (15.78 %) patients had chemical pregnancy, but there was no clinical pregnancy. In 16 participants, embryo transfer was canceled in view of insufficient endometrial thickness (<7 mm). CONCLUSION GCSF caused a small increase in endometrial thickness in women with persistent thin endometrium, but there was no improvement in their pregnancy rates.
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Jurczak W, Kalinka-Warzocha E, Chmielowska E, Duchnowska R, Wojciechowska-Lampka E, Wieruszewska K. Multicentre, Prospective Observational Study of Pegfilgrastim Primary Prophylaxis in Patients at High Risk of Febrile Neutropenia in Poland: PROFIL Study. Contemp Oncol (Pozn) 2015; 19:214-9. [PMID: 26557762 DOI: 10.5114/wo.2015.52657] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Revised: 05/05/2015] [Accepted: 06/08/2015] [Indexed: 11/18/2022] Open
Abstract
Aim of the study PROFIL was a prospective observational study conducted to investigate physicians’ evaluation of febrile neutropenia (FN) risk and reasons for giving pegfilgrastim primary prophylaxis (PP) in routine clinical practice in Poland. Material and methods Adult cancer patients treated with chemotherapy (CT), assessed by investigators as having high overall FN risk, and who received pegfilgrastim in cycle 1 were enrolled between 03/2009 and 09/2010. Investigators assessed FN risk of the CT regimen, individual risk factors, and overall FN risk, and were asked to provide the most important reasons for providing pegfilgrastim PP. Investigator-assessed CT FN risk was compared with guideline classification. Results Data were analysed from 1006 breast, ovarian, and lung cancer, and non-Hodgkin (NHL) and Hodgkin lymphoma (HL) patients. The most important reasons for using pegfilgrastim PP were high CT FN risk and advanced disease; these were consistent across tumour types and treatment intent. The investigators generally assessed high CT FN risk in agreement with guideline classification. Febrile neutropenia occurred in 4% of patients, most commonly in HL, NHL, and patients with advanced disease. Conclusions High CT FN risk and advanced stage of disease were found to be the most important reasons for providing pegfilgrastim PP by physicians in Poland.
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Schwartz RA, McDonough PH, Lee BW. Toxic epidermal necrolysis: Part II. Prognosis, sequelae, diagnosis, differential diagnosis, prevention, and treatment. J Am Acad Dermatol 2013; 69:187.e1-16; quiz 203-4. [PMID: 23866879 DOI: 10.1016/j.jaad.2013.05.002] [Citation(s) in RCA: 174] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Revised: 05/06/2013] [Accepted: 05/10/2013] [Indexed: 02/01/2023]
Abstract
Toxic epidermal necrolysis (TEN) is a life-threatening, typically drug-induced, mucocutaneous disease. TEN has a high mortality rate, making early diagnosis and treatment of paramount importance. New but experimental diagnostic tools that measure serum granulysin and high-mobility group protein B1 (HMGB1) offer the potential to differentiate early TEN from other, less serious drug reactions, but these tests have not been validated and are not readily available. The mainstay of treatment for TEN involves discontinuation of the offending drug, specialized care in an intensive care unit or burn center, and supportive therapy. Pharmacogenetic studies have clearly established a link between human leukocyte antigen allotype and TEN. Human leukocyte antigen testing should be performed on patients of East Asian descent before the initiation of carbamezapine and on all patients before the initiation of abacavir. The effectiveness of systemic steroids, intravenous immunoglobulins, plasmapheresis, cyclosporine, biologics, and other agents is uncertain.
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Affiliation(s)
- Robert A Schwartz
- Dermatology, Preventive Medicine, and Pathology, Rutgers University New Jersey Medical School, Newark, New Jersey 07103-2714, USA.
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Kornblau SM, Cohen AC, Soper D, Huang YW, Cesano A. Age-related changes of healthy bone marrow cell signaling in response to growth factors provide insight into low risk MDS. Cytometry B Clin Cytom 2013; 86:383-96. [PMID: 24106013 DOI: 10.1002/cyto.b.21125] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Revised: 07/22/2013] [Accepted: 08/09/2013] [Indexed: 12/12/2022]
Abstract
BACKGROUND Single Cell Network Profiling (SCNP) is a multiparametric flow cytometry-based assay that quantifiably and simultaneously measures changes in intracellular signaling proteins in response to in vitro extracellular modulators at the single cell level. Myelodysplastic syndrome (MDS) is a heterogeneous clonal disorder of hematopoietic stem cells that occurs in elderly subjects and is characterized by dysplasia and ineffective hematopoiesis. The functional responsiveness of MDS bone marrow (BM) hematopoietic cells, including functionally distinct myeloid and erythroid precursor subsets, to hematopoietic growth factors (HGF) and the relationship of modulated signaling to disease characteristics is poorly understood. METHODS SCNP was used first to examine the effects of age on erythropoietin (EPO) and granulocyte colony stimulating factor (GCSF)-induced signaling in myeloid, nucleated red blood cells (nRBC), and CD34 expressing cell subsets in healthy BM (n = 15). SCNP was then used to map functional signaling profiles in low risk (LR) MDS (n = 7) for comparison to signaling in samples from healthy donors and to probe signaling associations within clinically defined subgroups. RESULTS In healthy BM samples, signaling responses to HGF were quite homogeneous (i.e., tightly regulated) with age-dependent effects observed in response to EPO but not to GCSF. Despite the relatively small number of samples assayed in the study, LR MDS could be classified into distinct subgroups based on both cell subset frequency and signaling profiles. CONCLUSIONS As a correlate of underlying genetic abnormalities, signal transduction analyses may provide a functional and potentially clinically relevant classification of MDS. Further evaluation in a larger cohort is warranted.
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Affiliation(s)
- Steven M Kornblau
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas M. D. Anderson Cancer Center, Houston, Texas
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Kornblau SM, Cohen AC, Soper D, Huang YW, Cesano A. Age-related changes of healthy bone marrow cell signaling in response to growth factors provide insight into low risk MDS. Cytometry B Clin Cytom 2013:n/a-n/a. [PMID: 23959783 DOI: 10.1002/cytob.21125] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Revised: 07/22/2013] [Accepted: 08/09/2013] [Indexed: 02/03/2023]
Abstract
Background Single Cell Network Profiling (SCNP) is a multiparametric flow cytometry-based assay that quantifiably and simultaneously measures changes in intracellular signaling proteins in response to in vitro extracellular modulators at the single cell level. Myelodysplastic syndrome (MDS) is a heterogeneous clonal disorder of hematopoietic stem cells that occurs in elderly subjects and is characterized by dysplasia and ineffective hematopoiesis. The functional responsiveness of MDS bone marrow (BM) hematopoietic cells, including functionally distinct myeloid and erythroid precursor subsets, to hematopoietic growth factors (HGF) and the relationship of modulated signaling to disease characteristics is poorly understood. Methods SCNP was used first to examine the effects of age on erythropoietin (EPO) and granulocyte colony stimulating factor (GCSF)-induced signaling in myeloid, nucleated red blood cells (nRBC), and CD34 expressing cell subsets in healthy BM (n=15). SCNP was then used to map functional signaling profiles in low risk (LR) MDS (n=7) for comparison to signaling in samples from healthy donors and to probe signaling associations within clinically defined subgroups. Results In healthy BM samples, signaling responses to HGF were quite homogeneous (i.e. tightly regulated) with age-dependent effects observed in response to EPO but not to GCSF. Despite the relatively small number of samples assayed in the study, LR MDS could be classified into distinct subgroups based on both cell subset frequency and signaling profiles. Conclusion As a correlate of underlying genetic abnormalities, signal transduction analyses may provide a functional and potentially clinically relevant classification of MDS. Further evaluation in a larger cohort is warranted. © 2013 Clinical Cytometry Society.
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Affiliation(s)
- Steven M Kornblau
- The University of Texas M. D. Anderson Cancer Center, Department of Stem Cell Transplantation and Cellular Therapy, Houston, TX
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Prakash A, Medhi B, Chopra K. Granulocyte colony stimulating factor ( GCSF) improves memory and neurobehavior in an amyloid-β induced experimental model of Alzheimer's disease. Pharmacol Biochem Behav 2013; 110:46-57. [PMID: 23756182 DOI: 10.1016/j.pbb.2013.05.015] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2012] [Revised: 05/21/2013] [Accepted: 05/25/2013] [Indexed: 10/26/2022]
Abstract
GCSF is an endogenous neuronal hematopoietic factor that displays robust in vitro and in vivo neuroprotective activity. The present study aimed to evaluate the effect of GCSF on Aβ-induced memory loss in an Alzheimer's disease model of rats. A total of 42 male adult Wistar rats weighing 200-250 g were used in the study and were divided into 7 experimental groups. Animals were subjected to intracerebroventricular (ICV) injection stereotaxically at day 0 to instill amyloid-β(1-42) (Aβ(1-42)) or PBS (sham operated group) at 10 μl (5 μl bilaterally). GCSF treatment was given from day 7 to 12 of Aβ injection. On day 21, behavioral tests (short term memory, exploratory behavior and motor coordination) in all groups were evaluated. Biochemical parameters and RNA expression were measured to ensure the efficacy of GCSF. GCSF (35 and 70 μg/kg, s.c.) showed statistically significant improvement in memory as compared to control and sham operated groups (p<0.05). Mean time spent in the platform placed quadrant was found to be significantly increased in the GCSF (70 μg/kg, s.c.) as compared to GCSF (35 μg/kg, s.c.) and GCSF (10 μg/kg, s.c.) groups (p<0.001). GCSF (35 and 70 μg/kg, s.c.) also improved motor coordination and exploratory behavior significantly as compared to naïve sham operated and GCSF (10 μg/kg, s.c.) groups (p<0.05). Improvement in memory by GCSF (35 and 70 μg/kg, s.c.) was coupled with marked reduction of lipid peroxidation, acetylcholinesterase levels and a significant increase in antioxidant enzymes as well as total RNA expression in the brain. Additionally, GCSF (35 and 70 μg/kg, s.c.) significantly increased progenitor cells (iPSCs) and surface marker CD34+ in the brain and hence induced neurogenesis. The present findings demonstrate an improvement of memory and neurobehavioral function with GCSF in Aβ-induced Alzheimer's disease model in rats.
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Affiliation(s)
- Ajay Prakash
- Pharmacology Division, University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
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Gyanchandani R, Sano D, Ortega Alves MV, Klein JD, Knapick BA, Oh S, Myers JN, Kim S. Interleukin-8 as a modulator of response to bevacizumab in preclinical models of head and neck squamous cell carcinoma. Oral Oncol 2013; 49:761-70. [PMID: 23623402 DOI: 10.1016/j.oraloncology.2013.03.452] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [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: 12/17/2012] [Revised: 02/27/2013] [Accepted: 03/24/2013] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Bevacizumab, a monoclonal antibody to VEGF-A, is under active clinical evaluation in head and neck squamous cell carcinoma (HNSCC) and appears to be a promising therapy in at least a subset of patients. However, there are no reliable predictive biomarkers to identify those patients most likely to benefit. In this study, we assessed the efficacy of bevacizumab in HNSCC xenograft models to characterize escape mechanisms underlying intrinsic resistance and identify potential biomarkers of drug response. MATERIALS AND METHODS We evaluated the angiogenic profile of HNSCC cells from sensitive and resistant cell lines using antibody array. We further examined the role of interleukin-8 (IL-8) in contributing to resistance both in vitro and in vivo, using a loss- and gain-of-function approach. RESULTS Angiogenic profiling indicated that resistant cells expressed higher levels of proangiogenic factors including IL-8, interleukin-1α (IL-1α), vascular endothelial growth factor (VEGF), fibroblast growth factor-a (FGF-a), and tumor necrosis factor-α (TNF-α). IL-8 was the most differentially expressed protein. IL-8 signaling compensated for VEGF inhibition in endothelial cells. Downregulation of IL-8 resulted in sensitization of resistant tumors to bevacizumab by disrupting angiogenesis and enhancing endothelial cell apoptosis. Overexpression of IL-8 in sensitive tumors conferred resistance to bevacizumab. Serum analysis of HNSCC patients treated with a bevacizumab-containing regime revealed high baseline IL-8 levels in a subset of patients refractory to treatment but not in responders. CONCLUSIONS These results implicate IL-8 in mediating intrinsic resistance to bevacizumab in HNSCC. Hence, co-targeting of VEGF and IL-8 may help overcome resistance and enhance therapeutic efficacy.
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Affiliation(s)
- Rekha Gyanchandani
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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Naumenko N, Pollari E, Kurronen A, Giniatullina R, Shakirzyanova A, Magga J, Koistinaho J, Giniatullin R. Gender-Specific Mechanism of Synaptic Impairment and Its Prevention by GCSF in a Mouse Model of ALS. Front Cell Neurosci 2011; 5:26. [PMID: 22180738 PMCID: PMC3238042 DOI: 10.3389/fncel.2011.00026] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2011] [Accepted: 11/25/2011] [Indexed: 12/12/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease of motoneurons which progresses differentially in males and females for unknown reason. Here we measured gender differences in pre- and post-synaptic parameters of the neuromuscular transmission in a mutant G93A-SOD1 mouse model of ALS. Using intracellular microelectrode technique we recorded miniature and evoked end-plate potentials (MEPPs and EPPs) in the diaphragm muscle of G93A-SOD1 mice at early symptomatic stage. While no evident alterations in the amplitude of MEPPs was observed in male or female G93A-SOD1 mice, G93A-SOD1 mice displayed dramatically reduced probability of spontaneous acetylcholine release. In contrast, the EPPs evoked by single nerve stimulation had unchanged amplitude and quantal content. In males, but not females, this was accompanied by reduced readily releasable transmitter pool. Transmitter release in both sexes was sensitive to the inhibitory action of reactive oxygen species (ROS), but the production of ROS was increased in the spinal cords of male but not female G93A-SOD1 mice. Treatment with granulocyte colony stimulating factor (GCSF), which we previously found to be beneficial in males, attenuated the increased ROS production indicating involvement of the antioxidant mechanisms and improved ALS-induced synaptic dysfunctions only in males being ineffective in females. Consistent with our findings at synaptic level, GCSF did not change the survival rate or motor performance of female ALS mice. In summary, neuromuscular transmission in ALS mice is impaired at early symptomatic stage when a dramatic presynaptic decline of spontaneous release occurs. Beneficial effects of GCSF treatment on survival in males may be explained by GCSF-improved presynaptic functions in male G93A-SOD1 mice. Development of efficient treatment strategies for ALS may need to be directed in a gender-specific manner.
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Affiliation(s)
- Nikolay Naumenko
- Department of Neurobiology, A. I. Virtanen Institute for Molecular Sciences, University of Eastern Finland Kuopio, Finland
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