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Lanza DG, Mao J, Lorenzo I, Liao L, Seavitt JR, Ljungberg MC, Simpson EM, DeMayo FJ, Heaney JD. An oocyte-specific Cas9-expressing mouse for germline CRISPR/Cas9-mediated genome editing. Genesis 2024; 62:e23589. [PMID: 38523431 PMCID: PMC10987075 DOI: 10.1002/dvg.23589] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 03/26/2024]
Abstract
Cas9 transgenes can be employed for genome editing in mouse zygotes. However, using transgenic instead of exogenous Cas9 to produce gene-edited animals creates unique issues including ill-defined transgene integration sites, the potential for prolonged Cas9 expression in transgenic embryos, and increased genotyping burden. To overcome these issues, we generated mice harboring an oocyte-specific, Gdf9 promoter driven, Cas9 transgene (Gdf9-Cas9) targeted as a single copy into the Hprt1 locus. The X-linked Hprt1 locus was selected because it is a defined integration site that does not influence transgene expression, and breeding of transgenic males generates obligate transgenic females to serve as embryo donors. Using microinjections and electroporation to introduce sgRNAs into zygotes derived from transgenic dams, we demonstrate that Gdf9-Cas9 mediates genome editing as efficiently as exogenous Cas9 at several loci. We show that genome editing efficiency is independent of transgene inheritance, verifying that maternally derived Cas9 facilitates genome editing. We also show that paternal inheritance of Gdf9-Cas9 does not mediate genome editing, confirming that Gdf9-Cas9 is not expressed in embryos. Finally, we demonstrate that off-target mutagenesis is equally rare when using transgenic or exogenous Cas9. Together, these results show that the Gdf9-Cas9 transgene is a viable alternative to exogenous Cas9.
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Affiliation(s)
- Denise G. Lanza
- Department of Molecular and Human Genetics, Baylor College of Medicine Houston, TX, USA 77030
| | - Jianqiang Mao
- Department of Molecular & Cellular Biology, Baylor College of Medicine Houston, TX, USA 77030
| | - Isabel Lorenzo
- Department of Molecular and Human Genetics, Baylor College of Medicine Houston, TX, USA 77030
| | - Lan Liao
- Department of Molecular & Cellular Biology, Baylor College of Medicine Houston, TX, USA 77030
| | - John R. Seavitt
- Department of Molecular and Human Genetics, Baylor College of Medicine Houston, TX, USA 77030
- Present address: The Jackson Laboratory 600 Main St., Bar Harbor, Maine, ME, USA 04609
| | - M. Cecilia Ljungberg
- Department of Pediatrics – Neurology, Baylor College of Medicine Houston, TX, USA 77030
- Duncan Neurological Research Institute, Texas Children’s Hospital Houston, TX, USA 77030
| | - Elizabeth M. Simpson
- Centre for Molecular Medicine and Therapeutics at BC Children’s Hospital Department of Medical Genetics, The University of British Columbia Vancouver, British Columbia V5Z 4H4, Canada
| | - Francesco J. DeMayo
- Reproductive and Developmental Biology Laboratory National Institute of Environmental Health Sciences Research Triangle Park, NC, USA 27709
| | - Jason D. Heaney
- Department of Molecular and Human Genetics, Baylor College of Medicine Houston, TX, USA 77030
- Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine Houston, TX, USA 77030
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Song IW, Washington M, Leynes C, Hsu J, Rayavara K, Bae Y, Haelterman N, Chen Y, Jiang MM, Drelich A, Tat V, Lanza DG, Lorenzo I, Heaney JD, Tseng CTK, Lee B, Marom R. Generation of a humanized mAce2 and a conditional hACE2 mouse models permissive to SARS-COV-2 infection. Mamm Genome 2024:10.1007/s00335-024-10033-8. [PMID: 38488938 DOI: 10.1007/s00335-024-10033-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 02/02/2024] [Indexed: 03/17/2024]
Abstract
The Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) remains a public health concern and a subject of active research effort. Development of pre-clinical animal models is critical to study viral-host interaction, tissue tropism, disease mechanisms, therapeutic approaches, and long-term sequelae of infection. Here, we report two mouse models for studying SARS-CoV-2: A knock-in mAce2F83Y,H353K mouse that expresses a mouse-human hybrid form of the angiotensin-converting enzyme 2 (ACE2) receptor under the endogenous mouse Ace2 promoter, and a Rosa26 conditional knock-in mouse carrying the human ACE2 allele (Rosa26hACE2). Although the mAce2F83Y,H353K mice were susceptible to intranasal inoculation with SARS-CoV-2, they did not show gross phenotypic abnormalities. Next, we generated a Rosa26hACE2;CMV-Cre mouse line that ubiquitously expresses the human ACE2 receptor. By day 3 post infection with SARS-CoV-2, Rosa26hACE2;CMV-Cre mice showed significant weight loss, a variable degree of alveolar wall thickening and reduced survival rates. Viral load measurements confirmed inoculation in lung and brain tissues of infected Rosa26hACE2;CMV-Cre mice. The phenotypic spectrum displayed by our different mouse models translates to the broad range of clinical symptoms seen in the human patients and can serve as a resource for the community to model and explore both treatment strategies and long-term consequences of SARS-CoV-2 infection.
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Affiliation(s)
- I-Wen Song
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA
| | - Megan Washington
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA
| | - Carolina Leynes
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA
| | - Jason Hsu
- Department of Biochemistry, Cell and Molecular Biology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Kempaiah Rayavara
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Yangjin Bae
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA
| | - Nele Haelterman
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA
| | - Yuqing Chen
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA
| | - Ming-Ming Jiang
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA
| | - Aleksandra Drelich
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Vivian Tat
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Denise G Lanza
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA
| | - Isabel Lorenzo
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA
| | - Jason D Heaney
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA
| | - Chien-Te Kent Tseng
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Brendan Lee
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA
| | - Ronit Marom
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA.
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Serra-Prat M, Lorenzo I, Martínez J, Palomera E, Pleguezuelos E, Ferrer P. Relationship between Hydration Status and Muscle Catabolism in the Aged Population: A Cross-Sectional Study. Nutrients 2023; 15:4718. [PMID: 38004111 PMCID: PMC10674909 DOI: 10.3390/nu15224718] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/02/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND The physiopathology of sarcopenia is still not completely understood. AIM To assess the relationship between dehydration and skeletal muscle catabolism, muscle mass, and sarcopenia in an aged population. METHODS Observational cross-sectional study of community-dwelling subjects aged 70 years and older. Dehydration was assessed by plasma osmolarity; bioimpedance analysis (BIA) was used to assess body composition and water content; sarcopenia was established according to the EWGSOP-2 criteria; and 3-methyl-histidine (3MH) was used as an indicator of muscle catabolism. RESULTS 190 participants were recruited (77.4 years; 51.6% women). In total, 22.6% and 20.5% presented plasma osmolarity of 295-300 mOsm/L and >300 mOsm/L, respectively. Age was correlated with plasma osmolarity (rs = 0.439; p < 0.001). Plasma osmolarity was correlated with 3MH (rs = 0.360; p < 0.001) and showed an effect on 3MH levels, with an adjusted (by age, sex, and number of medications) beta of 0.283 (p < 0.001). BIA water content indicators showed no correlation with 3MH. Lower in sarcopenic compared to non-sarcopenic subjects were the intracellular water percentage (60.3 vs. 61.2%; p = 0.004) and intracellular water/free-fat mass ratio (44.3 vs. 45.0; p = 0.004). CONCLUSIONS Dehydration is a highly prevalent clinical condition in aged populations, increases with age, and is associated with muscle catabolism but not sarcopenia.
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Affiliation(s)
- Mateu Serra-Prat
- Research Unit, Consorci Sanitari del Maresme, 08304 Mataró, Barcelona, Spain;
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto de Salud Carlos III, 28222 Majadahonda, Madrid, Spain
| | - Isabel Lorenzo
- Information Management Unit, Consorci Sanitari del Maresme, 08304 Mataró, Barcelona, Spain;
| | - Jessica Martínez
- Dietetics and Nutritional Unit, Consorci Sanitari del Maresme, 08304 Mataró, Barcelona, Spain;
| | - Elisabet Palomera
- Research Unit, Consorci Sanitari del Maresme, 08304 Mataró, Barcelona, Spain;
| | - Eulogio Pleguezuelos
- Rehabilitation Department, Hospital of Mataró, Consorci Sanitari del Maresme, 08304 Mataró, Barcelona, Spain;
| | - Pau Ferrer
- Tecnocampus Foundation, 08302 Mataró, Barcelona, Spain;
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Stroup BM, Li X, Ho S, Zhouyao H, Chen Y, Ani S, Dawson B, Jin Z, Marom R, Jiang MM, Lorenzo I, Rosen D, Lanza D, Aceves N, Koh S, Seavitt JR, Heaney JD, Lee B, Burrage LC. Delayed skeletal development and IGF-1 deficiency in a mouse model of lysinuric protein intolerance. Dis Model Mech 2023; 16:dmm050118. [PMID: 37486182 PMCID: PMC10445726 DOI: 10.1242/dmm.050118] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 07/14/2023] [Indexed: 07/25/2023] Open
Abstract
SLC7A7 deficiency, or lysinuric protein intolerance (LPI), causes loss of function of the y+LAT1 transporter critical for efflux of arginine, lysine and ornithine in certain cells. LPI is characterized by urea cycle dysfunction, renal disease, immune dysregulation, growth failure, delayed bone age and osteoporosis. We previously reported that Slc7a7 knockout mice (C57BL/6×129/SvEv F2) recapitulate LPI phenotypes, including growth failure. Our main objective in this study was to characterize the skeletal phenotype in these mice. Compared to wild-type littermates, juvenile Slc7a7 knockout mice demonstrated 70% lower body weights, 87% lower plasma IGF-1 concentrations and delayed skeletal development. Because poor survival prevents evaluation of mature knockout mice, we generated a conditional Slc7a7 deletion in mature osteoblasts or mesenchymal cells of the osteo-chondroprogenitor lineage, but no differences in bone architecture were observed. Overall, global Slc7a7 deficiency caused growth failure with low plasma IGF-1 concentrations and delayed skeletal development, but Slc7a7 deficiency in the osteoblastic lineage was not a major contributor to these phenotypes. Future studies utilizing additional tissue-specific Slc7a7 knockout models may help dissect cell-autonomous and non-cell-autonomous mechanisms underlying phenotypes in LPI.
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Affiliation(s)
- Bridget M. Stroup
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Xiaohui Li
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Sara Ho
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Haonan Zhouyao
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Yuqing Chen
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Safa Ani
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Brian Dawson
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Zixue Jin
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Ronit Marom
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
- Texas Children's Hospital, Houston, TX 77030, USA
| | - Ming-Ming Jiang
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Isabel Lorenzo
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Daniel Rosen
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Denise Lanza
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Nathalie Aceves
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Sara Koh
- Rice University, Houston, TX 77005, USA
| | - John R. Seavitt
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jason D. Heaney
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Brendan Lee
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Lindsay C. Burrage
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
- Texas Children's Hospital, Houston, TX 77030, USA
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Lorenzo I, Nogueira-Recalde U, Garcia-Dominguez C, Oreiro N, Pinto Tasende JA, Lotz M, Blanco FJ, Carames B. POS0226 DEFICIENT CHAPERONE-MEDIATED AUTOPHAGY CONTRIBUTES TO JOINT DAMAGE IN OSTEOARTHRITIS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.1939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundIn Osteoarthritis (OA), defects in macroautophagy are evident and precede joint damage. Indeed, pharmacological activation of macroautophagy protects against joint damage and disease.ObjectivesTherefore, identifying hallmarks associated with specific autophagy subtypes could shed light to fundamental mechanisms of joint disease and facilitate the development of therapeutic strategies to prevent OA progression.MethodsA gene expression analysis of 35 autophagy genes was performed from blood from a Prospective OA Cohort of A Coruña (PROCOAC) of non-OA (Age:61,44±1,16 years; BMI:25,25±0,52; Females, n=18) and knee OA subjects (Age:65,50±1,05 years; BMI:29,55±0,67; Females, n=18, OA grade III-IV) by using SYBR green array. The differential expression of candidate genes in blood (n=30/group) and knee cartilage (Non-OA, n=12; Knee OA donors, n=21) was confirmed by using Taqman Technology. HSP90AA1, a chaperone mediated autophagy (CMA) mediator, was evaluated in human knee joint tissues (i.e. cartilage, meniscus, ACL and synovium) with different KL grades (0, 2 and 4, n=3/each KL grade) and in both spontaneous aging mice (2, 6, 12, 18, and 30 months old, n=3/each time) and surgically-induced OA mice (10 weeks after surgery, n=4/each) by immunohistochemistry. The functional consequences of HSP90AA1 deficiency on inflammation, oxidative stress, senescence and apoptosis were studied in human OA chondrocytes by gene and protein expression and flow cytometry. The potential contribution of CMA to chondrocyte homeostasis was studied by assessing the capacity of CMA to restore proteostasis upon macroautophagy deficiency by ATG5 knockdown. To study the therapeutic potential of targeting CMA, HSP90AA1 was overexpressed in human OA chondrocytes.Results16 autophagy-related genes were significantly downregulated in knee OA subjects (p<0.05). Macroautophagy-related genes ATG16L2, ATG12, ATG4B and MAP1LC3B, were significantly downregulated (p<0.05). Interestingly, HSP90AA1 and HSPA8, CMA mediators involved in stress response and protein folding, were significantly downregulated (p<0.001). Confirmatory studies showed a downregulation of MAP1LC3B and HSP90AA1 in blood (p<0.001) and cartilage (p<0.05) from knee OA subjects. Moreover, HSP90A was reduced in human joint tissues (i.e. cartilage, meniscus, ACL, p<0.05) and associated to OA severity. In mice, HSP90A reduction was observed not only in OA (p<0.05) but also in aging (p<0.01). LAMP2A, a key CMA mediator, was also reduced in human OA cartilage and associated with aging in mice (p<0.05). Remarkably, HSP90AA1 deficiency was functionally linked to inflammation, oxidative stress, senescence and apoptosis (p<0.05). Moreover, LAMP2A activity was decreased upon HSP90AA1 deficiency, while mTOR signaling pathway, p62 and active caspase 3 were increased (p<0.05), indicating a failure in the autophagy flux that may lead to impaired lysosomal degradation and apoptosis. Human OA chondrocytes with impaired macroautophagy through ATG5 knockdown show reduced LC3II expression and induced activation of prbs6, p16 and p21 (p<0.05). Interestingly, HSP90A was increased, suggesting a compensatory activation of CMA in response to specific macroautophagy defects. Remarkably, HSP90AA1 overexpression itself is sufficient to protect against joint damage by decreasing mTOR signaling and senescence in human OA chondrocytes.ConclusionTaking together, we identified HSP90A, a marker of CMA, as a key regulator of chondrocyte homeostasis underlying a relevant mechanism in OA. A better definition of the cross-talk between CMA and macroautophagy defects might reveal its role as a hallmark of OA.References[1]Caramés B, et al. Arthritis Rheum. 2010, 2015; 2. Caramés B, et al. Ann Rheum Dis. 2012Disclosure of InterestsNone declared
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Lorenzo I, Tonelli C, Bunn C, Kulshrestha S, Agnew S, Abdelsattar Z, Baker M, Luchette F. ELECTIVE INGUINAL HERNIA REPAIR: IS INCREASED RESIDENT AUTONOMY ASSOCIATED WITH EARLY POSTOPERATIVE CLINICAL OUTCOME? Am J Surg 2022; 223:475-476. [DOI: 10.1016/j.amjsurg.2022.02.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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André F, Rugo H, Juric D, Rubovsky G, Yamashita T, Stemmer S, Lu YS, Miller M, Lorenzo I, Hu H, Ciruelos E. 309P Antineoplastic (ANP) therapies (Tx) after alpelisib (ALP) or placebo (PBO) + fulvestrant (FUL) in patients (Pts) with hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2–), PIK3CA-mutated (Mut) advanced breast cancer (ABC): An analysis from SOLAR-1. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Lorenzo I, Nogueira-Recalde U, Oreiro N, Pinto Tasende JA, Lotz M, Blanco FJ, Carames B. POS0375 CHAPERONE-MEDIATED AUTOPHAGY IS A HALLMARK OF JOINT DISEASE IN OSTEOARTHRITIC PATIENTS. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.2639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:In Osteoarthritis (OA), defects in macroautophagy (autophagy) are evident and precede joint damage. Indeed, pharmacological activation of autophagy protects against joint damage.Objectives:Therefore, identifying hallmarks associated with specific autophagy subtypes could shed light to fundamental mechanisms of joint disease.Methods:A comparative analysis of 35 autophagy genes was performed from blood from the Prospective OA Cohort of A Coruña (PROCOAC). Non-OA subjects (Age:61,44±1,16 years; BMI:25,25±0,52; Females, n=18) and Knee OA subjects (Age:65,50±1,05 years; BMI:29,55±0,67; Females, n=18, OA grade III-IV) were profiled using an autophagy gene expression array by SYBR green qPCR. Confirmatory studies were performed in blood from Non-OA subjects (Age:60,13±1,12 years; BMI:24,85±0,59; Females; n=30) and Knee-OA subjects (Age:68,4±1,11 years; BMI:29,65±0,55; Females; n=30, OA grade III-IV) by Taqman qPCR. The candidate gene was evaluated in human knee joint tissues (cartilage, meniscus, ligaments, synovium) with different KL grades (Age: KL0=28,3±4,50; KL2=77±6,08; KL4=62,3±3,05, n=3) and in both spontaneous aging (2, 6, 12, 18, and 30 months old, n=3) and surgically-induced OA (10 weeks after surgery, n=4) in mice by IHC. The functional consequences were studied in T/C28a2 and primary human OA chondrocytes. Autophagy, FOXO, Chaperone-mediated autophagy (CMA), inflammation, and cellular senescence were analyzing by gene and protein expression. Moreover, oxidative stress and cell death were evaluated by FACS. The contribution of CMA to chondrocyte homeostasis was evaluated by studying the capacity of CMA to restore proteostasis upon autophagy deficiency by siATG5.Results:15 autophagy-related genes were significantly downregulated in blood from knee OA patients compared to non-OA patients. No significant upregulation was found for any studied gene, although a trend towards upregulation was found in genes involved in the mTOR pathway. Four key autophagy-related genes, including ATG16L2, ATG12, ATG4B and MAP1LC3B were found downregulated in knee OA patients. Interestingly, HSP90AA1 and HSPA8, CMA markers involved in stress response and protein folding, were downregulated. Confirmatory studies showed a significant downregulation of MAP1LC3B and HSP90AA1 in blood from knee OA patients. Remarkably, HSP90A was found reduced in femoral cartilage (medial and lateral), meniscus and ACL. Moreover, this reduction was higher in medial cartilage compared to lateral cartilage and meniscus, while in synovial membrane, HSP90A expression was found increased. This expression signature was dependent on OA grade severity. In addition, we observed a decrease of HSP90A with aging and OA in mice. The functional consequences of HSP90AA1 gene silencing are related to an increase in NFκB, MMP13, and p16 expression. Interestingly, LAMP2A, a key CMA mediator, HSPA8, MAP1LC3B and FoxO1 expression were upregulated in chondrocytes with HSP90AA1 deficiency, which might indicate an early response to maintain homeostasis. On the other hand, LAMP2A protein is decreased upon HSP90AA1 deficiency, while LC3II and p62 were increased, indicating a failure in the autophagy flux that leads to impaired lysosomal degradation.Moreover, p21, p16 and prbS6 were increased upon HSP90AA1 deficiency, besides increasing mitochondrial ROS production and apoptosis. ATG5 silencing blocks autophagy by reducing LC3II and increasing prbs6, p62, p16 and p21. Interestingly, LAMP2A and HSP90A were found increased, indicating a possible compensative activation of CMA in response to autophagy defects. These results support that HSP90A has an important role in chondrocyte homeostasis by participating in the cross-talk between CMA and autophagy.Conclusion:Taking together, we identified HSP90A, a CMA regulator, as critical in chondrocyte homeostasis. These disease mechanisms are relevant in OA and constitute hallmarks potentially useful to prevent OA progression.References:[1]Caramés B, et al. Arthritis Rheum. 2010, 2015;[2]Caramés B, et al. Ann Rheum Dis. 2012.Disclosure of Interests:None declared
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Rodon J, Demanse D, Rugo H, André F, Janku F, Mayer I, Burris H, Simo R, Farooki A, Hu H, Lorenzo I, Quadt C, Juric D. 96MO A risk analysis of alpelisib (ALP)-induced hyperglycemia (HG) using baseline factors in patients (pts) with advanced solid tumours and breast cancer (BC): A pooled analysis of X2101 and SOLAR-1. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.03.110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Birling MC, Yoshiki A, Adams DJ, Ayabe S, Beaudet AL, Bottomley J, Bradley A, Brown SDM, Bürger A, Bushell W, Chiani F, Chin HJG, Christou S, Codner GF, DeMayo FJ, Dickinson ME, Doe B, Donahue LR, Fray MD, Gambadoro A, Gao X, Gertsenstein M, Gomez-Segura A, Goodwin LO, Heaney JD, Hérault Y, de Angelis MH, Jiang ST, Justice MJ, Kasparek P, King RE, Kühn R, Lee H, Lee YJ, Liu Z, Lloyd KCK, Lorenzo I, Mallon AM, McKerlie C, Meehan TF, Fuentes VM, Newman S, Nutter LMJ, Oh GT, Pavlovic G, Ramirez-Solis R, Rosen B, Ryder EJ, Santos LA, Schick J, Seavitt JR, Sedlacek R, Seisenberger C, Seong JK, Skarnes WC, Sorg T, Steel KP, Tamura M, Tocchini-Valentini GP, Wang CKL, Wardle-Jones H, Wattenhofer-Donzé M, Wells S, Wiles MV, Willis BJ, Wood JA, Wurst W, Xu Y, Teboul L, Murray SA. A resource of targeted mutant mouse lines for 5,061 genes. Nat Genet 2021; 53:416-419. [PMID: 33833456 PMCID: PMC8397259 DOI: 10.1038/s41588-021-00825-y] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
| | | | | | - Shinya Ayabe
- RIKEN BioResource Research Center, Tsukuba, Japan
| | - Arthur L Beaudet
- Baylor College of Medicine, Houston, TX, USA
- Luna Genetics, Houston, TX, USA
| | | | - Allan Bradley
- Wellcome Sanger Institute, Hinxton, UK
- Cambridge Institute of Therapeutic Immunology and Infectious Disease (CITIID), Jeffrey Cheah Biomedical Centre, University of Cambridge, Cambridge, UK
| | | | - Antje Bürger
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Wendy Bushell
- Wellcome Sanger Institute, Hinxton, UK
- IONTAS, Cambridge, UK
| | - Francesco Chiani
- Monterotondo Mouse Clinic, Italian National Research Council (CNR), Institute of Cell Biology and Neurobiology, Monterotondo Scalo, Italy
| | - Hsian-Jean Genie Chin
- National Laboratory Animal Center, National Applied Research Laboratories (NARLabs), Taipei, Taiwan
| | | | | | - Francesco J DeMayo
- Baylor College of Medicine, Houston, TX, USA
- National Institute for Environmental Health Science Research, Durham, NC, USA
| | | | | | | | | | - Alessia Gambadoro
- Monterotondo Mouse Clinic, Italian National Research Council (CNR), Institute of Cell Biology and Neurobiology, Monterotondo Scalo, Italy
| | - Xiang Gao
- SKL of Pharmaceutical Biotechnology and Model Animal Research Center, Collaborative Innovation Center for Genetics and Development, Nanjing Biomedical Research Institute, Nanjing University, Nanjing, China
| | | | - Alba Gomez-Segura
- European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Hinxton, UK
| | | | | | - Yann Hérault
- Université de Strasbourg, CNRS, INSERM, PHENOMIN-ICS, IGBMC, Illkirch, France
| | - Martin Hrabe de Angelis
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Experimental Genetics, Center of Life and Food Sciences Weihenstephan, Technische Universität München, Freising-Weihenstephan, Germany
- German Center for Diabetes Research, Neuherberg, Germany
| | - Si-Tse Jiang
- National Laboratory Animal Center, National Applied Research Laboratories (NARLabs), Taipei, Taiwan
| | - Monica J Justice
- Baylor College of Medicine, Houston, TX, USA
- Centre for Phenogenomics, Toronto, Ontario, Canada
- Hospital for Sick Children, Toronto, Ontario, Canada
| | - Petr Kasparek
- Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czech Republic
| | | | - Ralf Kühn
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Max Delbrueck Center for Molecular Medicine, Berlin, Germany
- Berlin Institute of Health, Berlin, Germany
| | - Ho Lee
- Korea Mouse Phenotyping Center (KMPC) and Graduate School of Cancer Science and Policy, National Cancer Center, Gyeonggi, Republic of Korea
| | - Young Jae Lee
- Korea Mouse Phenotyping Center (KMPC) and Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, Republic of Korea
| | - Zhiwei Liu
- CAM-SU Genomic Resource Center, Soochow University, Suzhou, China
| | - K C Kent Lloyd
- Mouse Biology Program, University of California, Davis, Davis, CA, USA
| | | | | | - Colin McKerlie
- Centre for Phenogenomics, Toronto, Ontario, Canada
- Hospital for Sick Children, Toronto, Ontario, Canada
| | - Terrence F Meehan
- European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Hinxton, UK
- Kymab Group, Cambridge, UK
| | - Violeta Munoz Fuentes
- European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Hinxton, UK
| | - Stuart Newman
- Wellcome Sanger Institute, Hinxton, UK
- PetMedix, Cambridge, UK
| | - Lauryl M J Nutter
- Centre for Phenogenomics, Toronto, Ontario, Canada
- Hospital for Sick Children, Toronto, Ontario, Canada
| | - Goo Taeg Oh
- Immune and Vascular Cell Network Research Center, National Creative Initiatives and Department of Life Sciences, Ewha Womans Univesity, Seoul, Republic of Korea
| | - Guillaume Pavlovic
- Université de Strasbourg, CNRS, INSERM, PHENOMIN-ICS, IGBMC, Illkirch, France
| | | | - Barry Rosen
- Wellcome Sanger Institute, Hinxton, UK
- AstraZeneca, Discovery Sciences, Cambridge, UK
| | - Edward J Ryder
- Wellcome Sanger Institute, Hinxton, UK
- LGC, Sport and Specialised Analytical Services, Fordham, UK
| | - Luis A Santos
- MRC Harwell Institute, Mammalian Genetics Unit, Didcot, UK
| | - Joel Schick
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Genetics and Cellular Engineering Group, Institute of Molecular Toxicology and Pharmacology, Helmholtz Zentrum Munich, Neuherberg, Germany
| | | | - Radislav Sedlacek
- Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czech Republic
| | - Claudia Seisenberger
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Je Kyung Seong
- Korea Mouse Phenotyping Center (KMPC) and BK21 Program for Veterinary Science, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - William C Skarnes
- Wellcome Sanger Institute, Hinxton, UK
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA
| | - Tania Sorg
- Université de Strasbourg, CNRS, INSERM, PHENOMIN-ICS, IGBMC, Illkirch, France
| | - Karen P Steel
- Wellcome Sanger Institute, Hinxton, UK
- Wolfson Centre for Age-Related Diseases, King's College London, London, UK
| | | | - Glauco P Tocchini-Valentini
- Monterotondo Mouse Clinic, Italian National Research Council (CNR), Institute of Cell Biology and Neurobiology, Monterotondo Scalo, Italy
| | - Chi-Kuang Leo Wang
- National Laboratory Animal Center, National Applied Research Laboratories (NARLabs), Taipei, Taiwan
| | | | | | - Sara Wells
- MRC Harwell Institute, Mary Lyon Centre, Didcot, UK
| | | | - Brandon J Willis
- Mouse Biology Program, University of California, Davis, Davis, CA, USA
| | - Joshua A Wood
- Mouse Biology Program, University of California, Davis, Davis, CA, USA
| | - Wolfgang Wurst
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Developmental Genetics, Center of Life and Food Sciences Weihenstephan, Technische Universität München, Freising-Weihenstephan, Germany
- German Center for Neurodegenerative Diseases, Munich, Germany
| | - Ying Xu
- CAM-SU Genomic Resource Center, Soochow University, Suzhou, China
| | - Lydia Teboul
- MRC Harwell Institute, Mary Lyon Centre, Didcot, UK.
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11
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Serra-Prat M, Terradellas M, Lorenzo I, Arús M, Burdoy E, Salietti A, Ramírez S, Palomera E, Papiol M, Pleguezuelos E. Effectiveness of a Weight-Loss Intervention in Preventing Frailty and Functional Decline in Community-Dwelling Obese Older People. A Randomized Controlled Trial. J Frailty Aging 2021; 11:91-99. [DOI: 10.14283/jfa.2021.38] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Background: Obesity is a risk factor for frailty and muscle weakness, so weight loss in obese older adults may prevent frailty and functional decline. Objective: To assess the safety and efficacy of a multimodal weight-loss intervention in improving functional performance and reducing frailty risk in obese older adults. Design: Randomized controlled trial with 2 parallel arms. Setting and participants: Community-dwelling obese adults aged 65-75 years with body mass index (BMI) 30-39 kg/m2. Intervention: 6-month multimodal intervention based on diet and a physical activity program. Control group: Usual care. Main and secondary outcome measures: Frailty (Fried criteria) rate and functional performance at 6, 12, and 24 months of follow-up, respectively. Intermediate outcome measures: Weight loss, body composition changes, and metabolic and inflammatory biomarker changes. Results: N=305. The study intervention increased gait speed at 12 and 24 months of follow-up, but had no significant effect on frailty prevention. It was effective in reducing weight, BMI, fat mass, interleukin 6, and insulin resistance and improving self-reported quality of life. Conclusions: The study intervention was not demonstrated to be effective in preventing frailty in obese people aged 65-75 years at 24 months of follow-up. However, it allowed weight loss and a reduction in inflammatory and insulin resistance markers, which could have a long-term effect on frailty that requires further research.
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12
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Serra-Prat M, Lorenzo I, Papiol M, Palomera E, Bartolomé M, Pleguezuelos E, Burdoy E. Intracellular Water Content in Lean Mass as an Indicator of Muscle Quality in an Older Obese Population. J Clin Med 2020; 9:jcm9051580. [PMID: 32455974 PMCID: PMC7290582 DOI: 10.3390/jcm9051580] [Citation(s) in RCA: 1] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 05/04/2020] [Accepted: 05/19/2020] [Indexed: 02/07/2023] Open
Abstract
Background: In aged populations, muscle strength depends more on muscle quality than on muscle quantity, while all three are criteria for the diagnosis of sarcopenia. Intracellular water content (ICW) in lean mass (LM) has been proposed as an indicator of muscle quality related to muscle strength in older people. Objectives: To evaluate the relationship between the ICW/LM ratio, muscle strength and indicators of functional performance in obese older adults, and to assess the value of the ICW/LM ratio as an indicator of muscle quality. Methodology: Design: cross-sectional study. Population: persons aged 65–75 years with a body mass index of 30–39 kg/m2. ICW and LM were estimated by bioelectrical impedance. Hand grip, gait speed, unipedal stance test, timed up-and-go (TUG) test, Barthel score and frailty (Fried criteria) were assessed. Sarcopenia was established according to EWGSOP2 criteria. Results: Recruited were 305 subjects (66% women), mean age 68 years. The ICW/LM ratio correlated with the TUG test, gait speed and grip strength, and was also associated with sex, the unipedal stance test and frailty. Independently of age, sex and muscle mass, the ICW/LM ratio was related with gait speed, the TUG test and unipedal stance capacity. One person (0.3%) had sarcopenia defined as low muscle strength and low muscle mass, while 25 people (8.2%) had sarcopenia defined as low muscle strength and poor muscle quality (ICW/LM). With this last definition, sarcopenia was related to frailty, gait speed and the TUG test. Conclusions: ICW content in LM could be a useful muscle quality indicator for defining sarcopenia. However, more studies are required to confirm our findings for other populations.
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Affiliation(s)
- Mateu Serra-Prat
- Research Unit, Consorci Sanitari del Maresme, Mataró, 08304 Barcelona, Spain; (I.L.); (E.P.)
- Institut de Recerca Germans Trias i Pujol (IGTP), Badalona, 08916 Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), ISCIII, 08304 Barcelona, Spain
- Correspondence: ; Tel.: +34-(93)-741-7730
| | - Isabel Lorenzo
- Research Unit, Consorci Sanitari del Maresme, Mataró, 08304 Barcelona, Spain; (I.L.); (E.P.)
- Universitat de Vic-Universitat Central de Catalunya, 08500 Barcelona, Spain
| | - Mònica Papiol
- ABS Argentona, Consorci Sanitari del Maresme, Argentona, 08310 Barcelona, Spain; (M.P.); (E.B.)
| | - Elisabet Palomera
- Research Unit, Consorci Sanitari del Maresme, Mataró, 08304 Barcelona, Spain; (I.L.); (E.P.)
| | - Maria Bartolomé
- ABS Mataró Centre, Consorci Sanitari del Maresme, Mataró, 08304 Barcelona, Spain;
| | - Eulogio Pleguezuelos
- Rehabilitation Service, Hospital de Mataró, Consorci Sanitari del Maresme, Mataró, 08304 Barcelona, Spain;
| | - Emili Burdoy
- ABS Argentona, Consorci Sanitari del Maresme, Argentona, 08310 Barcelona, Spain; (M.P.); (E.B.)
- ABS Mataró Centre, Consorci Sanitari del Maresme, Mataró, 08304 Barcelona, Spain;
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13
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Ciruelos E, Delea T, Moynahan A, Mayer I, Park J, Chandiwana D, Ridolfi A, Lorenzo I, Rugo H. 163P Population-adjusted comparison of SOLAR-1 and BOLERO-2: PFS with second-line alpelisib + fulvestrant vs everolimus + exemestane in postmenopausal pts with PIK3CA-mut hormone-receptor positive (HR+) human epidermal growth factor receptor-2 negative (HER2-) advanced breast cancer (ABC). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.03.263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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14
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Haselimashhadi H, Mason JC, Munoz-Fuentes V, López-Gómez F, Babalola K, Acar EF, Kumar V, White J, Flenniken AM, King R, Straiton E, Seavitt JR, Gaspero A, Garza A, Christianson AE, Hsu CW, Reynolds CL, Lanza DG, Lorenzo I, Green JR, Gallegos JJ, Bohat R, Samaco RC, Veeraragavan S, Kim JK, Miller G, Fuchs H, Garrett L, Becker L, Kang YK, Clary D, Cho SY, Tamura M, Tanaka N, Soo KD, Bezginov A, About GB, Champy MF, Vasseur L, Leblanc S, Meziane H, Selloum M, Reilly PT, Spielmann N, Maier H, Gailus-Durner V, Sorg T, Hiroshi M, Yuichi O, Heaney JD, Dickinson ME, Wolfgang W, Tocchini-Valentini GP, Lloyd KCK, McKerlie C, Seong JK, Yann H, de Angelis MH, Brown SDM, Smedley D, Flicek P, Mallon AM, Parkinson H, Meehan TF. Soft windowing application to improve analysis of high-throughput phenotyping data. Bioinformatics 2020; 36:1492-1500. [PMID: 31591642 PMCID: PMC7115897 DOI: 10.1093/bioinformatics/btz744] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 08/20/2019] [Accepted: 10/04/2019] [Indexed: 11/14/2022] Open
Abstract
Motivation High-throughput phenomic projects generate complex data from small treatment and large control groups that increase the power of the analyses but introduce variation over time. A method is needed to utlize a set of temporally local controls that maximizes analytic power while minimizing noise from unspecified environmental factors. Results Here we introduce ‘soft windowing’, a methodological approach that selects a window of time that includes the most appropriate controls for analysis. Using phenotype data from the International Mouse Phenotyping Consortium (IMPC), adaptive windows were applied such that control data collected proximally to mutants were assigned the maximal weight, while data collected earlier or later had less weight. We applied this method to IMPC data and compared the results with those obtained from a standard non-windowed approach. Validation was performed using a resampling approach in which we demonstrate a 10% reduction of false positives from 2.5 million analyses. We applied the method to our production analysis pipeline that establishes genotype–phenotype associations by comparing mutant versus control data. We report an increase of 30% in significant P-values, as well as linkage to 106 versus 99 disease models via phenotype overlap with the soft-windowed and non-windowed approaches, respectively, from a set of 2082 mutant mouse lines. Our method is generalizable and can benefit large-scale human phenomic projects such as the UK Biobank and the All of Us resources. Availability and implementation The method is freely available in the R package SmoothWin, available on CRAN http://CRAN.R-project.org/package=SmoothWin. Supplementary information Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Hamed Haselimashhadi
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | - Jeremy C Mason
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | - Violeta Munoz-Fuentes
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | - Federico López-Gómez
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | - Kolawole Babalola
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | - Elif F Acar
- The Centre for Phenogenomics.,The Hospital for Sick Children, Toronto, Canada.,Department of Statistics, University of Manitoba, Winnipeg, MB R3T 2N2 Canada
| | - Vivek Kumar
- The Jackson Laboratory, Bar Harbor, ME 04609, USA
| | - Jacqui White
- The Jackson Laboratory, Bar Harbor, ME 04609, USA
| | - Ann M Flenniken
- The Centre for Phenogenomics.,Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada
| | | | | | | | | | | | | | | | | | | | | | | | | | - Ritu Bohat
- Baylor College of Medicine, Houston, TX, USA
| | | | | | - Jong Kyoung Kim
- Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu, Korea
| | | | | | | | - Lore Becker
- Helmholtz Center Munich, Neuherberg, Germany
| | | | - David Clary
- Mouse Biology Program, University of California Davis, Davis, CA, USA
| | - Soo Young Cho
- National Cancer Center (NCC) & Korea Mouse Phenotyping Center (KMPC), Korea
| | | | | | - Kyung Dong Soo
- Seoul National University & Korea Mouse Phenotyping Center (KMPC), Korea
| | - Alexandr Bezginov
- The Centre for Phenogenomics.,The Hospital for Sick Children, Toronto, Canada
| | - Ghina Bou About
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris, PHENOMIN-ICS, 67404 Illkirch, France
| | - Marie-France Champy
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris, PHENOMIN-ICS, 67404 Illkirch, France
| | - Laurent Vasseur
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris, PHENOMIN-ICS, 67404 Illkirch, France
| | - Sophie Leblanc
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris, PHENOMIN-ICS, 67404 Illkirch, France
| | - Hamid Meziane
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris, PHENOMIN-ICS, 67404 Illkirch, France
| | - Mohammed Selloum
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris, PHENOMIN-ICS, 67404 Illkirch, France
| | - Patrick T Reilly
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris, PHENOMIN-ICS, 67404 Illkirch, France
| | | | | | | | - Tania Sorg
- Université de Strasbourg, CNRS, INSERM, Institut Clinique de la Souris, PHENOMIN-ICS, 67404 Illkirch, France
| | | | - Obata Yuichi
- RIKEN BioResource Research Center, Tsukuba, Japan
| | | | | | - Wurst Wolfgang
- Institute of Developmental Genetics, Helmholtz Centre Munich, Munich, Germany
| | | | | | - Colin McKerlie
- The Centre for Phenogenomics.,The Hospital for Sick Children, Toronto, Canada
| | - Je Kyung Seong
- Seoul National University & Korea Mouse Phenotyping Center (KMPC), Korea
| | - Herault Yann
- Université de Strasbourg, CNRS, INSERM, Institut de Génétique, Biologie Moléculaire et Cellulaire, Institut Clinique de la Souris, IGBMC, PHENOMIN-ICS, 67404 Illkirch, France
| | | | | | - Damian Smedley
- William Harvey Research Institute, Charterhouse Square Barts and the London School of Medicine and Dentistry Queen Mary University of London, London EC1M 6BQ, UK
| | - Paul Flicek
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | | | - Helen Parkinson
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
| | - Terrence F Meehan
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK
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15
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Lorenzo I, Li Z, Torres M, Machaty Z, Nolte D. 1 Assessing the energy status of porcine embryos by means of biodynamic imaging. Reprod Fertil Dev 2020. [DOI: 10.1071/rdv32n2ab1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Assisted reproductive technologies are powerful tools for enhancing production in livestock or treating infertility in humans. Unfortunately, the success rate of the technologies is rather low. A major reason for the poor efficiency is the lack of methods to reliably assess the developmental potential of the embryos before transfer into recipients. Therefore, a noninvasive method to ensure the selection of only the best embryos for transfer would be highly desirable. Biodynamic imaging is a compelling new microscopy that uses intracellular Doppler spectroscopy to perform label-free, noninvasive optical measurements of cellular fitness. The aim of this study was to investigate whether biodynamic imaging can be used to assess the energy status of the embryos, which may be indicative of their viability. Porcine oocytes matured invitro were parthenogenetically activated by an electrical pulse and cultured for 2 days. The parthenotes were then divided into two groups, and approximately half of them were incubated for an additional 2 days in the presence of 20mM sodium azide. Sodium azide is an inhibitor of oxidative phosphorylation and is known to block ATP production. The rest of the embryos were cultured without sodium azide and used as a control to indicate normal ATP levels. At the end of the culture period embryos that reached the 8- to 16-cell stage were evaluated by our biodynamic imaging system to assess their energy status, after which they were lysed and their ATP contents were determined by means of a bioluminescence assay. A total of 68 embryos (32 treated with the inhibitor and 36 control) were evaluated. The ATP content analysis showed that the control embryos had significantly more ATP than those treated with sodium azide as determined by Student's t-test (5.04±1.07 vs. 1.31±0.57; P<0.05). A correlative study was then completed where biodynamic biomarkers were used to classify embryos to estimate the ability of biodynamic imaging to identify embryos with high or low energy status. A set of 13 biomarkers representing each embryo as a feature vector was used to train a classifier. We found that the cross-validated classifier had a sensitivity and specificity of ~80%. In addition, a receiver-operator curve constructed by varying the ATP threshold of the independent bioluminescence assay had an area-under-the-curve of 0.81. These results indicate that biodynamic imaging is able to determine the energy status of the embryos noninvasively and has great potential in the assessment of embryo viability.
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16
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Rugo H, André F, Yamashita T, Cerda H, Toledano I, Stemmer S, Cruz Jurado J, Juric D, Mayer I, Ciruelos E, Iwata H, Conte P, Campone M, Wilke C, Mills D, Lorenzo I, Miller M, Loibl S. Alpelisib (ALP) + fulvestrant (FUL) for patients with hormone receptor–positive (HR+), HER2− advanced breast cancer (ABC): Management and time course of key adverse events of special interest (AESIs) in SOLAR-1. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz242.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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17
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Campone M, Rugo H, Rubovszky G, André F, Loibl S, Iwata H, Conte P, Mayer I, Juric D, Yamashita T, Lorenzo I, Ridolfi A, Ciruelos E. Alpelisib (ALP) + fulvestrant (FUL) in hormone-receptor positive (HR+), human epidermal growth factor receptor-2–negative (HER2–) advanced breast cancer (ABC): Subgroup analysis by presence of visceral metastasis (VM) in the SOLAR-1 trial. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz242.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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18
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Hernando Cubero J, Taberna Sanz M, Carmona Bayonas A, Iglesias L, Grande E, Trigo Perez J, Grau J, Lopez-Picazo J, Castelo B, Alonso Gordoa T, Lorenzo I, Casado Herraez A, Ugidos L, Munarriz J, Lavernia J, Capdevila J. Durvalumab plus tremelimumab for the treatment of patients (pts) with refractory and progressive advanced thyroid carcinoma: A phase II multicohort trial (DUTHY / GETNE T1812). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz267.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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19
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Muñoz E, Domingo J, De Castro G, Lorenzo I, García-Velasco JA, Bellver J, Pellicer A, Garrido N. Ovarian stimulation for oocyte vitrification does not modify disease-free survival and overall survival rates in patients with early breast cancer. Reprod Biomed Online 2019; 39:860-867. [PMID: 31564650 DOI: 10.1016/j.rbmo.2019.07.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 03/06/2019] [Revised: 07/03/2019] [Accepted: 07/05/2019] [Indexed: 11/28/2022]
Abstract
RESEARCH QUESTION Does ovarian stimulation for oocyte vitrification affect disease-free survival and overall survival rates in women with early breast cancer? DESIGN This cohort study included 259 patients with early breast cancer; 148 patients underwent ovarian stimulation, whereas 111 patients did not. Patients were treated between January 2008 and December 2016. To calculate the disease-free survival time and overall survival rate, the time of definitive surgery was defined as the starting point. The follow-up was conducted up to 5 years. RESULTS Exposed and non-exposed groups were comparable in tumour, node and metastases classification, Nottingham grade, hormonal receptor status, tumour molecular phenotype, histology and pathology stage. The exposed group was younger than the non-exposed. Recurrences occurred in 9/148 women (6.1%) in the exposed group and 15/111 women (13.5%) in the non-exposed group, with no significant difference. The mean disease-free survival time was 63.9 months (95% confidence interval [CI]: 61.5-66.4) in the exposed group and 60.6 months (95% CI: 56.9-64.2) in the non-exposed, with no significant difference (log-rank [Mantel-Cox] test). Overall survival rates were comparable; 2/148 (1.4%) and 4/111 (3.6%) patients died, in exposed and non-exposed groups, respectively, during the period analysed. Mean overall survival times were 67.2 months (95% CI: 66.2-68.2) in the exposed group and 65.9 months (95% CI: 64.0-67.9) in the unexposed, with no significant difference (log-rank [Mantel-Cox] test). CONCLUSIONS This study suggests that ovarian stimulation in patients with early-stage breast cancer is safe in the long term.
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Affiliation(s)
- Elkin Muñoz
- IVIRMA Vigo, Plaza Francisco Fernández del Riego, 7 36203, Vigo Pontevedra, Spain.
| | | | | | | | | | - Jose Bellver
- Instituto Universitario IVI Valencia, Universidad de Valencia; IVI Foundation, Valencia
| | - Antonio Pellicer
- IVI Foundation, Valencia; Instituto de Investigación Sanitaria La Fe, Valencia, Spain; IVIRMA Rome
| | - Nicolás Garrido
- IVI Foundation, Valencia; Instituto de Investigación Sanitaria La Fe, Valencia, Spain
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Lorenzo I, Calvo-Ortega J, Femenia SM, Laosa-Bello C, Casals J. EP-2182 Skin dose calculation in breast cancer when the air surrounding the patient contour is considered. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)32602-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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21
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Centellas-Pérez FJ, Tébar A, Llamas F, Lorenzo I, Sarduy P, Martínez-Díaz M, Martínez-Antolinos C, Piqueras-Sánchez S, Cucchiari D, Masiá-Móndejar J, Ortega-Cerrato A, Gómez-Roldán C. Analysis of Kidney Donation and Its Relationship With Graft Failure of the Recipient at 1 Year. Transplant Proc 2019; 51:314-320. [PMID: 30879531 DOI: 10.1016/j.transproceed.2018.12.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 11/29/2018] [Accepted: 12/09/2018] [Indexed: 01/20/2023]
Abstract
INTRODUCTION Currently, the shortage of organs available for kidney transplantation and a change in donors' and recipients' profiles (elderly, with cardiovascular risk, donors after cardiac death), it is becoming necessary to assess grafts from expanded-criteria donors (ECD) in order to have methods that allow us to predict viability and graft survival. OBJECTIVE The aim of this study was to analyze the different methods of renal donor assessment (estimated glomerular filtration rate [eGFR], preimplantation biopsy, and Kidney Donor Profile Index [KDPI] score) as predictors of graft survival and renal function of our recipient at 1 year. METHODS We performed a descriptive and retrospective study of 183 deceased donor kidney transplantations performed at our center between 2011 and 2015. We calculated the KDPI scores, donor eGFR was estimated using the Chronic Kidney Disease Epidemiology Collaboration Formula equation, and biopsies were evaluated using Banff classification. RESULTS ECDs comprised 59.60%, 93% of donors had an eGFR ≥ 60 mL/min/1.73 m2, and 41% presented with a KDPI score ≥ 90%. The most frequent range in the biopsy score was 0-3. The 1-year graft survival rate was 86.90%. Factors that negatively influenced graft survival were donor/recipient age, ECD, KDPI, and cold ischemia time (CIT). CONCLUSION Prolonged CIT and KDPI ≥ 90% were donor variables that were related to graft failure at 1 year in our center.
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Affiliation(s)
- F J Centellas-Pérez
- Nephrology Department, Complejo Hospitalario Universitario de Albacete, Albacete, Spain.
| | - A Tébar
- Nephrology Department, Complejo Hospitalario Universitario de Albacete, Albacete, Spain
| | - F Llamas
- Nephrology Department, Complejo Hospitalario Universitario de Albacete, Albacete, Spain
| | - I Lorenzo
- Nephrology Department, Complejo Hospitalario Universitario de Albacete, Albacete, Spain
| | - Pablo Sarduy
- Nephrology Department, Complejo Hospitalario Universitario de Albacete, Albacete, Spain
| | - M Martínez-Díaz
- Nephrology Department, Complejo Hospitalario Universitario de Albacete, Albacete, Spain
| | - C Martínez-Antolinos
- Nephrology Department, Complejo Hospitalario Universitario de Albacete, Albacete, Spain
| | - S Piqueras-Sánchez
- Nephrology Department, Complejo Hospitalario Universitario de Albacete, Albacete, Spain
| | - D Cucchiari
- Nephrology and Renal Transplant Unit, Hospital Clinic, Barcelona, Spain
| | - J Masiá-Móndejar
- Nephrology Department, Complejo Hospitalario Universitario de Albacete, Albacete, Spain
| | - A Ortega-Cerrato
- Nephrology Department, Complejo Hospitalario Universitario de Albacete, Albacete, Spain
| | - C Gómez-Roldán
- Nephrology Department, Complejo Hospitalario Universitario de Albacete, Albacete, Spain
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Serra-Prat M, Lorenzo I, Palomera E, Yébenes JC, Campins L, Cabré M. Intracellular Water Content in Lean Mass is Associated with Muscle Strength, Functional Capacity, and Frailty in Community-Dwelling Elderly Individuals. A Cross-Sectional Study. Nutrients 2019; 11:nu11030661. [PMID: 30893821 PMCID: PMC6471552 DOI: 10.3390/nu11030661] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/06/2019] [Accepted: 03/14/2019] [Indexed: 12/18/2022] Open
Abstract
High intracellular water (ICW) content has been associated with better functional performance and a lower frailty risk in elderly people. However, it is not clear if the protective effect of high ICW is due to greater muscle mass or better muscle quality and cell hydration. We aimed to assess the relationship between ICW content in lean mass (LM) and muscle strength, functional performance, frailty, and other clinical characteristics in elderly people. In an observational cross-sectional study of community-dwelling subjects aged ≥75 years, ICW and LM were estimated by bioelectrical impedance, and the ICW/LM ratio (mL/kg) calculated. Muscle strength was measured as hand grip, frailty status was assessed according to Fried criteria, and functional status was assessed by Barthel score. For 324 recruited subjects (mean age 80 years), mean (SD) ICW/LM ratio was 408 (29.3) mL/kg. The ICW/LM ratio was negatively correlated with age (rs = −0.249; p < 0.001). A higher ICW/LM ratio was associated with greater muscle strength, better functional capacity, and a lower frailty risk, even when adjusted by age, sex, nº of co-morbidities, and LM. ICW content in LM (including the muscle) may influence muscle strength, functional capacity and frailty. However, further studies are needed to confirm this hypothesis.
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Affiliation(s)
- Mateu Serra-Prat
- Research Unit, Consorci Sanitari del Maresme, 08304 Mataró (Barcelona), Spain.
| | - Isabel Lorenzo
- Research Unit, Consorci Sanitari del Maresme, 08304 Mataró (Barcelona), Spain.
| | - Elisabet Palomera
- Research Unit, Consorci Sanitari del Maresme, 08304 Mataró (Barcelona), Spain.
| | - Juan Carlos Yébenes
- Intensive Care Unit, Consorci Sanitari del Maresme, 08304 Mataró (Barcelona), Spain.
| | - Lluís Campins
- Pharmacy Department. Consorci Sanitari del Maresme, 08304 Mataró (Barcelona), Spain.
| | - Mateu Cabré
- Geriatric Department, Consorci Sanitari del Maresme, 08304 Mataró (Barcelona), Spain.
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Serra-Prat M, Lorenzo I, Palomera E, Ramírez S, Yébenes JC. Total Body Water and Intracellular Water Relationships with Muscle Strength, Frailty and Functional Performance in an Elderly Population. J Nutr Health Aging 2019; 23:96-101. [PMID: 30569076 DOI: 10.1007/s12603-018-1129-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 01/28/2023]
Abstract
BACKGROUND As a person ages, total body water (TBW), intracellular water (ICW), muscle mass and muscle strength tend to decline. The decline in ICW may reflect losses in the number of muscle cells but may also be responsible for less hydrated muscle cells. AIM To assess whether TBW and ICW are associated with muscle strength, functional performance and frailty in an aged population, independently of muscle mass. METHODOLOGY Design: An observational cross-sectional study of community-dwelling individuals aged 75 years and older. TBW, ICW, fat mass, lean mass and muscle mass were assessed by bioelectrical impedance analysis, frailty status was measured according to Fried criteria, handgrip strength was measured using the hand-held JAMAR dynamometer, and functional performance was measured according to the Barthel index and gait speed. RESULTS A total of 324 subjects were recruited (mean age 80.1 years, 47.5% women). TBW and ICW were closely correlated with muscle mass in both sexes. ICW was also associated with Barthel score, gait speed and frailty in both sexes and with handgrip in men. Considerable variability in ICW was observed for the same muscle mass. Multivariate analysis showed a positive effect of ICW on handgrip, functional performance and gait speed and a protective effect of ICW on frailty, independently of age, sex, body mass index and number of comorbidities. CONCLUSIONS In elderly individuals with similar muscle mass, those with higher ICW had a better functional performance and a lower frailty risk, suggesting a protective effect of cell hydration, independently of muscle mass.
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Affiliation(s)
- M Serra-Prat
- Mateu Serra Prat, Research Unit, Hospital of Mataró, Carretera de Cirera s/n, 08304 Mataró, Barcelona, Spain, Tel. 34 93 741 77 30, Fax. 34 93 757 33 21, e-mail:
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Lanza DG, Gaspero A, Lorenzo I, Liao L, Zheng P, Wang Y, Deng Y, Cheng C, Zhang C, Seavitt JR, DeMayo FJ, Xu J, Dickinson ME, Beaudet AL, Heaney JD. Comparative analysis of single-stranded DNA donors to generate conditional null mouse alleles. BMC Biol 2018; 16:69. [PMID: 29925370 PMCID: PMC6011517 DOI: 10.1186/s12915-018-0529-0] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 05/09/2018] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND The International Mouse Phenotyping Consortium is generating null allele mice for every protein-coding gene in the genome and characterizing these mice to identify gene-phenotype associations. While CRISPR/Cas9-mediated null allele production in mice is highly efficient, generation of conditional alleles has proven to be more difficult. To test the feasibility of using CRISPR/Cas9 gene editing to generate conditional knockout mice for this large-scale resource, we employed Cas9-initiated homology-driven repair (HDR) with short and long single stranded oligodeoxynucleotides (ssODNs and lssDNAs). RESULTS Using pairs of single guide RNAs and short ssODNs to introduce loxP sites around a critical exon or exons, we obtained putative conditional allele founder mice, harboring both loxP sites, for 23 out of 30 targeted genes. LoxP sites integrated in cis in at least one mouse for 18 of 23 genes. However, loxP sites were mutagenized in 4 of the 18 in cis lines. HDR efficiency correlated with Cas9 cutting efficiency but was minimally influenced by ssODN homology arm symmetry. By contrast, using pairs of guides and single lssDNAs to introduce loxP-flanked exons, conditional allele founders were generated for all four genes targeted, although one founder was found to harbor undesired mutations within the lssDNA sequence interval. Importantly, when employing either ssODNs or lssDNAs, random integration events were detected. CONCLUSIONS Our studies demonstrate that Cas9-mediated HDR with pairs of ssODNs can generate conditional null alleles at many loci, but reveal inefficiencies when applied at scale. In contrast, lssDNAs are amenable to high-throughput production of conditional alleles when they can be employed. Regardless of the single-stranded donor utilized, it is essential to screen for sequence errors at sites of HDR and random insertion of donor sequences into the genome.
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Affiliation(s)
- Denise G Lanza
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, MS BCM225, Houston, TX, 77030, USA
- Mouse ES Cell Core, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Angelina Gaspero
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, MS BCM225, Houston, TX, 77030, USA
| | - Isabel Lorenzo
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, MS BCM225, Houston, TX, 77030, USA
- Mouse ES Cell Core, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Lan Liao
- Department of Molecular Biology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
- Genetically Engineered Mouse Core, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Ping Zheng
- Mouse ES Cell Core, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Ying Wang
- Mouse ES Cell Core, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Yu Deng
- Lester and Sue Smith Breast Center, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Chonghui Cheng
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, MS BCM225, Houston, TX, 77030, USA
- Department of Molecular Biology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
- Lester and Sue Smith Breast Center, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Chuansheng Zhang
- Department of Neuroscience, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - John R Seavitt
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, MS BCM225, Houston, TX, 77030, USA
| | - Francesco J DeMayo
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, Durham, NC, 27709, USA
| | - Jianming Xu
- Department of Molecular Biology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
- Genetically Engineered Mouse Core, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Mary E Dickinson
- Department of Molecular Physiology and Biophysics, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA
| | - Arthur L Beaudet
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, MS BCM225, Houston, TX, 77030, USA
| | - Jason D Heaney
- Department of Molecular and Human Genetics, Baylor College of Medicine, One Baylor Plaza, MS BCM225, Houston, TX, 77030, USA.
- Mouse ES Cell Core, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX, 77030, USA.
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Lorenzo I, Calvo-Ortega J, Moragues-Femenia S, Laosa-Bello C, Casals J. EP-1716: Using Portal Dosimetry To Check The Photon Mu Linearity And Output Vs. Gantry Angle Of A Linac. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)32025-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Senent L, Lorenzo I, Vicente A, Alonso E, Sanzo C, Ramos F, Arenillas L, Orero M, Navarro B, Marco V, Campelo MD, Jérez A, Montoro J, Arrizabalaga B, Bonanad S, Lluch R, Paz R, Font P, Gomis F, Sanz G. Prognostic Implication of the Percentage of Erythroid Cells in Bone Marrow at Diagnosis in Patients with Myelodysplastic Syndrome. Leuk Res 2017. [DOI: 10.1016/s0145-2126(17)30375-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Mahadevan S, Sathappan V, Utama B, Lorenzo I, Kaskar K, Van den Veyver IB. Maternally expressed NLRP2 links the subcortical maternal complex (SCMC) to fertility, embryogenesis and epigenetic reprogramming. Sci Rep 2017; 7:44667. [PMID: 28317850 PMCID: PMC5357799 DOI: 10.1038/srep44667] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 02/13/2017] [Indexed: 11/09/2022] Open
Abstract
Mammalian parental genomes contribute differently to early embryonic development. Before activation of the zygotic genome, the maternal genome provides all transcripts and proteins required for the transition from a highly specialized oocyte to a pluripotent embryo. Depletion of these maternally-encoded transcripts frequently results in failure of preimplantation embryonic development, but their functions in this process are incompletely understood. We found that female mice lacking NLRP2 are subfertile because of early embryonic loss and the production of fewer offspring that have a wide array of developmental phenotypes and abnormal DNA methylation at imprinted loci. By demonstrating that NLRP2 is a member of the subcortical maternal complex (SCMC), an essential cytoplasmic complex in oocytes and preimplantation embryos with poorly understood function, we identified imprinted postzygotic DNA methylation maintenance, likely by directing subcellular localization of proteins involved in this process, such as DNMT1, as a new crucial role of the SCMC for mammalian reproduction.
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Affiliation(s)
- Sangeetha Mahadevan
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas, 77030, USA.,Century Scholars Program, Rice University, Houston, Texas, 77005, USA.,Shared Equipment Authority, Rice University, Houston, Texas, 77005, USA
| | - Varsha Sathappan
- Department of Molecular Human Genetics, Baylor College of Medicine, Houston, Texas, 77030, USA
| | - Budi Utama
- Interdepartmental Graduate Program in Translational Biology and Molecular Medicine, Baylor College of Medicine, Houston, Texas, 77030, USA
| | - Isabel Lorenzo
- Jan and Duncan Neurological Research Institute, Texas Children's Hospital, Houston, Texas, 77030, USA
| | - Khalied Kaskar
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas, 77030, USA
| | - Ignatia B Van den Veyver
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas, 77030, USA.,Century Scholars Program, Rice University, Houston, Texas, 77005, USA.,Jan and Duncan Neurological Research Institute, Texas Children's Hospital, Houston, Texas, 77030, USA
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Pedrero-Perez EJ, Ruiz-Sanchez de Leon JM, Rojo-Mota G, Morales-Alonso S, Pedrero-Aguilar J, Lorenzo I, Gonzalez A. [Prefrontal Symptoms Inventory (PSI): ecological validity and convergence with neuropsychological measures]. Rev Neurol 2016; 63:241-251. [PMID: 27600738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
INTRODUCTION The Prefrontal Symptoms Inventory (PSI) is a self-reported questionnaire, created in Spain, which asks about cognitive, emotional and behavioural alterations in activities of daily living and which can be applied in both the general population and in multiple clinical populations. There is a shorter 20-item version (PSI-20) with excellent psychomotor properties for screening. AIM To study the convergent and divergent validity of the PSI and PSI-20, by analysing how their scales reflect the day-to-day consequences of real deficits found in neurological assessment performed by means of performance tests. PATIENTS AND METHODS A sample of 52 persons undergoing treatment for substance addiction (31 males and 21 females) were administered the PSI together with an abbreviated neuropsychological examination battery focused on describing attentional, mnemonic and executive processes. RESULTS Both versions of the PSI present optimal psychometric properties (0.78 > alpha > 0.94 for the complete 46-item version and 0.7 > alpha > 0.89 for the abbreviated 20-item version). The results confirm the hypotheses regarding their validity: the performance problems scale is related with the capacity to resolve tests that supposedly rate the executive functions of a prefrontal origin (convergent validity), whereas the scales of problems in emotional control and problems with social behaviour are not related with those cognitive capabilities (discriminant validity). CONCLUSIONS The PSI is a test that is clinically useful, psychometrically valid and applicable in multiple clinical populations.
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Affiliation(s)
- E J Pedrero-Perez
- Madrid Salud. Ayuntamiento de Madrid. Centro de Atencion a Drogodependientes (CAD 4-San Blas), Madrid, Espana
| | - J M Ruiz-Sanchez de Leon
- Madrid Salud. Ayuntamiento de Madrid. Centro de Prevencion del Deterioro Cognitivo, Madrid, Espana
- Universidad Complutense de Madrid, Pozuelo de Alarcon, Espana
| | - G Rojo-Mota
- Universidad Rey Juan Carlos, 28922 Madrid, Espana
- Madrid Salud. Ayuntamiento de Madrid. Centro de Atencion a Drogodependientes (CAD 4-San Blas), Madrid, Espana
| | - S Morales-Alonso
- Madrid Salud. Ayuntamiento de Madrid. Centro de Atencion a Drogodependientes (CAD 4-San Blas), Madrid, Espana
| | - J Pedrero-Aguilar
- Madrid Salud. Ayuntamiento de Madrid. Centro de Atencion a Drogodependientes (CAD 4-San Blas), Madrid, Espana
| | - I Lorenzo
- Madrid Salud. Ayuntamiento de Madrid. Centro de Atencion a Drogodependientes (CAD 4-San Blas), Madrid, Espana
| | - A Gonzalez
- Madrid Salud. Ayuntamiento de Madrid. Centro de Atencion a Drogodependientes (CAD 4-San Blas), Madrid, Espana
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Montesinos P, Rodríguez-Veiga R, Boluda B, Martínez-Cuadrón D, Cano I, Lancharro A, Sanz J, Arilla MJ, López-Chuliá F, Navarro I, Lorenzo I, Salavert M, Pemán J, Calvillo P, Martínez J, Carpio N, Jarque I, Sanz GF, Sanz MA. Incidence and risk factors of post-engraftment invasive fungal disease in adult allogeneic hematopoietic stem cell transplant recipients receiving oral azoles prophylaxis. Bone Marrow Transplant 2015; 50:1465-72. [PMID: 26281032 DOI: 10.1038/bmt.2015.181] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 07/01/2015] [Accepted: 07/03/2015] [Indexed: 01/24/2023]
Abstract
Studies that analyze the epidemiology and risk factors for invasive fungal disease (IFD) after engraftment in alloSCT are few in number. This single-center retrospective study included 404 alloSCT adult recipients surviving >40 days who engrafted and were discharged without prior IFD. All patients who received ⩾20 mg/day of prednisone were assigned to primary oral prophylaxis (itraconazole or low-dose voriconazole). The primary end point was the cumulative incidence (CI) of probable/proven IFD using the European Organization for Research and Treatment of Cancer and Mycoses Study Group (EORTC/MSG) criteria. The independent prognostic factors after multivariate analyses were used to construct a post-engraftment IFD risk score. The 1-year CI of IFD was 11%. The non-relapse mortality was 40% in those developing IFD and 16% in those who did not. The intent-to-treat analysis showed that 17% of patients abandoned the assigned prophylaxis. Age >40 years, ⩾1 previous SCT, pre-engraftment neutropenia >15 days, extensive chronic GVHD and CMV reactivation were independent risk factors. The post-engraftment IFD score stratified patients into low risk (0-1 factor, CI 0.7%), intermediate risk (2 factors, CI 9.9%) and high risk (3-5 factors, CI 24.7%) (P<0.0001). The antifungal prophylaxis strategy failed to prevent post-engraftment IFD in 11% of alloSCT. Our risk score could be useful to implement risk-adapted strategies using antifungal prophylaxis after engraftment.
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Affiliation(s)
- P Montesinos
- Department of Hematology, Hospital Universitari i Politècnic La Fe, València, Spain
| | - R Rodríguez-Veiga
- Department of Hematology, Hospital Universitari i Politècnic La Fe, València, Spain
| | - B Boluda
- Department of Hematology, Hospital Universitari i Politècnic La Fe, València, Spain
| | - D Martínez-Cuadrón
- Department of Hematology, Hospital Universitari i Politècnic La Fe, València, Spain
| | - I Cano
- Department of Hematology, Hospital Universitari i Politècnic La Fe, València, Spain
| | - A Lancharro
- Department of Hematology, Hospital Universitari i Politècnic La Fe, València, Spain
| | - J Sanz
- Department of Hematology, Hospital Universitari i Politècnic La Fe, València, Spain
| | - M J Arilla
- Department of Hematology, Hospital Universitari i Politècnic La Fe, València, Spain
| | - F López-Chuliá
- Department of Hematology, Hospital Universitari i Politècnic La Fe, València, Spain
| | - I Navarro
- Department of Hematology, Hospital Universitari i Politècnic La Fe, València, Spain
| | - I Lorenzo
- Department of Hematology, Hospital Universitari i Politècnic La Fe, València, Spain
| | - M Salavert
- Department of Infectious Diseases, Hospital Universitari i Politècnic La Fe, València, Spain
| | - J Pemán
- Department of Microbiology, Hospital Universitari i Politècnic La Fe, València, Spain
| | - P Calvillo
- Department of Radiology, Hospital Universitari i Politècnic La Fe, València, Spain
| | - J Martínez
- Department of Hematology, Hospital Universitari i Politècnic La Fe, València, Spain
| | - N Carpio
- Department of Hematology, Hospital Universitari i Politècnic La Fe, València, Spain
| | - I Jarque
- Department of Hematology, Hospital Universitari i Politècnic La Fe, València, Spain
| | - G F Sanz
- Department of Hematology, Hospital Universitari i Politècnic La Fe, València, Spain
| | - M A Sanz
- Department of Hematology, Hospital Universitari i Politècnic La Fe, València, Spain.,Departament de Medicina, Universitat de València, Valencia, Spain
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Peinado AB, Benito PJ, Barriopedro M, Lorenzo I, Maffulli N, Calderón FJ. Heart rate recovery in elite Spanish male athletes. J Sports Med Phys Fitness 2014; 54:264-270. [PMID: 24739288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
AIM During postexercise recovery, heart rate (HR) initially falls rapidly, followed by a period of slower decrease, until resting values are reached. The aim of the present work was to examine the differences in the recovery heart rate (RHR) between athletes engaged in static and dynamic sports. METHODS The study subjects were 294 federated sportsmen competing at the national and international level in sports classified using the criteria of Mitchell et al. as either prevalently static (N.=89) or prevalently dynamic (N.=205). Within the dynamic group, the subjects who practised the most dynamic sports were assigned to further subgroups: triathlon (N.=20), long distance running (N.=58), cycling (N.=28) and swimming (N.=12). All athletes were subjected to a maximum exertion stress test and their HR recorded at 1, 2, 3 and 4 min (RHR1,2,3,4) into the HR recovery period. The following indices of recovery (IR) were then calculated: IR1=(HRpeak-RHR1,2,3,4)/(HRmax-HRrest)*100, IR2=(HRpeak-RHR1,2,3,4)/(HRmax/HRpeak), and IR3=HRpeak-RHR1,2,3,4. The differences in the RHR and IR for the static and dynamic groups were examined using two way ANOVA. RESULTS The RHR at minutes 2 (138.7±15.2 vs. 134.8±14.4 beats·min⁻¹) and 3 (128.5±15.2 vs. 123.3±14.4 beats·min⁻¹) were significantly higher for the static group (Group S) than the dynamic group (Group D), respectively. Significant differences were seen between Group D and S with respect to IR1 at minutes 1 (26.4±8.7 vs. 24.8±8.4%), 2 (43.8±8.1 vs. 41.5±7.8%), 3 (52.1±8.3 vs. 49.1±8%) and 4 (56.8±8.6 vs. 55.4±7.4%) of recovery. For IR2, significant differences were seen between the same groups at minutes 2 (59.7±12.5 vs. 55.9±10.8 beats·min⁻¹) and 3 (71.0±13.5 vs. 66.1±11.4 beats·min⁻¹) of recovery. Finally, for IR3, the only significant difference between Group D and S was recorded at minute 3 of recovery (72.2±12.5 vs. 66.2±11.5 beats·min⁻¹). CONCLUSION This work provides information on RHR of a large population of elite Spanish athletes, and shows marked differences in the way that HR recovers in dynamic and static sports.
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Affiliation(s)
- A B Peinado
- Departamento de Salud y Rendimiento Humano, Facultad de Ciencias de la Actividad Física y del Deporte (INEF), Universidad Politécnica de Madrid, Madrid, Spain
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Sanz J, Arango M, Senent L, Jarque I, Montesinos P, Sempere A, Lorenzo I, Martín G, Moscardó F, Mayordomo E, Salavert M, Cañigral C, Boluda B, Salazar C, López-Hontangas JL, Sanz MA, Sanz GF. EBV-associated post-transplant lymphoproliferative disorder after umbilical cord blood transplantation in adults with hematological diseases. Bone Marrow Transplant 2013; 49:397-402. [PMID: 24292521 DOI: 10.1038/bmt.2013.190] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 09/06/2013] [Accepted: 09/30/2013] [Indexed: 11/09/2022]
Abstract
We analyzed the incidence, clinicopathological features, risk factors and prognosis of patients with EBV-associated post-transplant lymphoproliferative disorder (EBV-PTLD) in 288 adults undergoing umbilical cord blood transplantation (UCBT) at a single institution. Twelve patients developed proven EBV-PTLD at a median time of 73 days (range, 36-812). Three-year cumulative incidence (CI) of EBV-PTLD was 4.3% (95% CI: 1.9-6.7). All patients presented with extranodal involvement. Most frequently affected sites were the liver, spleen, central nervous system (CNS), Waldeyer's ring and BM in 7, 6, 4, 3 and 3 patients, respectively. One patient had polymorphic and 11 had monomorphic EBV-PTLD (7 diffuse large B-cell lymphomas not otherwise specified, 4 plasmablastic lymphomas). We confirmed donor origin and EBV infection in all histological samples. EBV-PTLD was the cause of death in 11 patients at a median time of 23 days (range, 1-84). The 3-year CI of EBV-PTLD was 12.9% (95% CI: 3.2-22.5) and 2.6% (95% CI: 0.5-4.7) for patients receiving reduced-intensity conditioning (RIC) and myeloablative conditioning, respectively (P<0.0001). In conclusion, adults with EBV-PTLD after UCBT showed frequent visceral and CNS involvement. The prognosis was poor despite routine viral monitoring and early intervention. An increased risk of EBV-PTLD was noted among recipients of RIC regimens.
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Affiliation(s)
- J Sanz
- Servicio de Hematología, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - M Arango
- Servicio de Hematología, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - L Senent
- Servicio de Hematología, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - I Jarque
- Servicio de Hematología, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - P Montesinos
- Servicio de Hematología, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - A Sempere
- Servicio de Hematología, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - I Lorenzo
- Servicio de Hematología, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - G Martín
- Servicio de Hematología, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - F Moscardó
- Servicio de Hematología, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - E Mayordomo
- Servicio de Hematología, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - M Salavert
- Servicio de Hematología, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - C Cañigral
- Servicio de Hematología, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - B Boluda
- Servicio de Hematología, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - C Salazar
- Servicio de Hematología, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - J L López-Hontangas
- Servicio de Hematología, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - M A Sanz
- Servicio de Hematología, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - G F Sanz
- Servicio de Hematología, Hospital Universitari i Politècnic La Fe, Valencia, Spain
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Probst FJ, Corrigan RR, del Gaudio D, Salinger AP, Lorenzo I, Gao SS, Chiu I, Xia A, Oghalai JS, Justice MJ. A point mutation in the gene for asparagine-linked glycosylation 10B (Alg10b) causes nonsyndromic hearing impairment in mice (Mus musculus). PLoS One 2013; 8:e80408. [PMID: 24303013 PMCID: PMC3841196 DOI: 10.1371/journal.pone.0080408] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Accepted: 10/02/2013] [Indexed: 01/10/2023] Open
Abstract
The study of mouse hearing impairment mutants has led to the identification of a number of human hearing impairment genes and has greatly furthered our understanding of the physiology of hearing. The novel mouse mutant neurological/sensory 5 (nse5) demonstrates a significantly reduced or absent startle response to sound and is therefore a potential murine model of human hearing impairment. Genetic analysis of 500 intercross progeny localized the mutant locus to a 524 kilobase (kb) interval on mouse chromosome 15. A missense mutation in a highly-conserved amino acid was found in the asparagine-linked glycosylation 10B gene (Alg10b), which is within the critical interval for the nse5 mutation. A 20.4 kb transgene containing a wildtype copy of the Alg10b gene rescued the mutant phenotype in nse5/nse5 homozygous animals, confirming that the mutation in Alg10b is responsible for the nse5/nse5 mutant phenotype. Homozygous nse5/nse5 mutants had abnormal auditory brainstem responses (ABRs), distortion product otoacoustic emissions (DPOAEs), and cochlear microphonics (CMs). Endocochlear potentials (EPs), on the other hand, were normal. ABRs and DPOAEs also confirmed the rescue of the mutant nse5/nse5 phenotype by the wildtype Alg10b transgene. These results suggested a defect in the outer hair cells of mutant animals, which was confirmed by histologic analysis. This is the first report of mutation in a gene involved in the asparagine (N)-linked glycosylation pathway causing nonsyndromic hearing impairment, and it suggests that the hearing apparatus, and the outer hair cells in particular, are exquisitely sensitive to perturbations of the N-linked glycosylation pathway.
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Affiliation(s)
- Frank J. Probst
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Rebecca R. Corrigan
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Daniela del Gaudio
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Andrew P. Salinger
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Isabel Lorenzo
- Genetically Engineered Mouse Shared Resource, Baylor College of Medicine, Houston, Texas, United States of America
| | - Simon S. Gao
- Department of Bioengineering, Rice University, Houston, Texas, United States of America
| | - Ilene Chiu
- Department of Otolaryngology-Head and Neck Surgery, Baylor College of Medicine, Houston, Texas, United States of America
| | - Anping Xia
- Department of Otolaryngology-Head and Neck Surgery, Stanford University, Stanford, California, United States of America
| | - John S. Oghalai
- Department of Otolaryngology-Head and Neck Surgery, Stanford University, Stanford, California, United States of America
| | - Monica J. Justice
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
- * E-mail:
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Lorenzo I, Constenla M, Palacios P, García-Arroyo FR, Fernández I, Campos B, Salgado L, Carrete N. Docetaxel as single-agent treatment in elderly patients with advanced breast cancer. Clin Drug Investig 2012; 25:249-56. [PMID: 17523775 DOI: 10.2165/00044011-200525040-00004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
OBJECTIVE To assess the efficacy and safety profile of docetaxel, as a single agent, in the treatment of elderly patients with advanced breast cancer. METHODS Twenty-eight patients, with a median age of 72 (range 66-84) years, were included in the study and received docetaxel (50-100 mg/m(2)) every 3-4 weeks as first- or second-line treatment of advanced breast cancer. Granulocyte colony-stimulating factor (G-CSF) was administered as primary prophylaxis in 97% of cycles. RESULTS The overall response rate was 50% (95% CI 32, 69). The median time to disease progression was 10.7 months (95% CI 10.0, 11.5), and the median overall survival was 26.6 months (95% CI 16.6, 36.7). Neutropenia was the most frequent grade 3/4 toxicity (18% of patients and 5% of cycles). There was just one case of febrile neutropenia that resulted in toxic death. Severe neutropenia only occurred in patients who did not receive G-CSF support from the start of the study treatment. Vomiting was the most frequent grade 3/4 non-haematological toxicity (11% of patients and 2% of cycles). CONCLUSION Docetaxel as a single agent is active in elderly patients with advanced breast cancer. The use of prophylactic G-CSF allowed the administration of high doses of docetaxel with minimal myelosuppression.
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Affiliation(s)
- I Lorenzo
- Servicio de Oncología, Complexo Hospitalario de Pontevedra, Pontevedra, Spain
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34
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Jaramillo F, Sanz J, Montesinos P, Martinez-Cuadron D, Lorenzo I, Palau J, Martin G, Jarque I, De La Rubia J, Moscardó F, Martinez J, Sanz M, Sanz G. Cord Blood Transplantation from Unrelated Donors Versus Stem Cell Transplantation from HLA-Identical Sibling in Adults with Philadelphia-Positive Acute Lymphoblastic Leukemia. Biol Blood Marrow Transplant 2012. [DOI: 10.1016/j.bbmt.2011.12.368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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35
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Sanz J, Jaramillo F, Montesinos P, Martinez-Cuadron D, Lorenzo I, Palau J, Martin G, Jarque I, De La Rubia J, Moscardo F, Martinez J, Sanz M, Sanz G. Epstein-Barr Virus-Related Complications (EBV-RC) After Umbilical Cord Blood Transplantation (UCBT) for Adult Patients with High-Risk Hematologic Malignancies. Biol Blood Marrow Transplant 2012. [DOI: 10.1016/j.bbmt.2011.12.536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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36
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Wang X, McCoy PA, Rodriguiz RM, Pan Y, Je HS, Roberts AC, Kim CJ, Berrios J, Colvin JS, Bousquet-Moore D, Lorenzo I, Wu G, Weinberg RJ, Ehlers MD, Philpot BD, Beaudet AL, Wetsel WC, Jiang YH. Synaptic dysfunction and abnormal behaviors in mice lacking major isoforms of Shank3. Hum Mol Genet 2011; 20:3093-108. [PMID: 21558424 DOI: 10.1093/hmg/ddr212] [Citation(s) in RCA: 400] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
SHANK3 is a synaptic scaffolding protein enriched in the postsynaptic density (PSD) of excitatory synapses. Small microdeletions and point mutations in SHANK3 have been identified in a small subgroup of individuals with autism spectrum disorder (ASD) and intellectual disability. SHANK3 also plays a key role in the chromosome 22q13.3 microdeletion syndrome (Phelan-McDermid syndrome), which includes ASD and cognitive dysfunction as major clinical features. To evaluate the role of Shank3 in vivo, we disrupted major isoforms of the gene in mice by deleting exons 4-9. Isoform-specific Shank3(e4-9) homozygous mutant mice display abnormal social behaviors, communication patterns, repetitive behaviors and learning and memory. Shank3(e4-9) male mice display more severe impairments than females in motor coordination. Shank3(e4-9) mice have reduced levels of Homer1b/c, GKAP and GluA1 at the PSD, and show attenuated activity-dependent redistribution of GluA1-containing AMPA receptors. Subtle morphological alterations in dendritic spines are also observed. Although synaptic transmission is normal in CA1 hippocampus, long-term potentiation is deficient in Shank3(e4-9) mice. We conclude that loss of major Shank3 species produces biochemical, cellular and morphological changes, leading to behavioral abnormalities in mice that bear similarities to human ASD patients with SHANK3 mutations.
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Affiliation(s)
- Xiaoming Wang
- Department of Pediatrics, Duke University School of Medicine, Durham, NC 27710, USA
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37
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Jiang YH, Pan Y, Zhu L, Landa L, Yoo J, Spencer C, Lorenzo I, Brilliant M, Noebels J, Beaudet AL. Altered ultrasonic vocalization and impaired learning and memory in Angelman syndrome mouse model with a large maternal deletion from Ube3a to Gabrb3. PLoS One 2010; 5:e12278. [PMID: 20808828 PMCID: PMC2924885 DOI: 10.1371/journal.pone.0012278] [Citation(s) in RCA: 127] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2009] [Accepted: 07/19/2010] [Indexed: 11/21/2022] Open
Abstract
Angelman syndrome (AS) is a neurobehavioral disorder associated with mental retardation, absence of language development, characteristic electroencephalography (EEG) abnormalities and epilepsy, happy disposition, movement or balance disorders, and autistic behaviors. The molecular defects underlying AS are heterogeneous, including large maternal deletions of chromosome 15q11–q13 (70%), paternal uniparental disomy (UPD) of chromosome 15 (5%), imprinting mutations (rare), and mutations in the E6-AP ubiquitin ligase gene UBE3A (15%). Although patients with UBE3A mutations have a wide spectrum of neurological phenotypes, their features are usually milder than AS patients with deletions of 15q11–q13. Using a chromosomal engineering strategy, we generated mutant mice with a 1.6-Mb chromosomal deletion from Ube3a to Gabrb3, which inactivated the Ube3a and Gabrb3 genes and deleted the Atp10a gene. Homozygous deletion mutant mice died in the perinatal period due to a cleft palate resulting from the null mutation in Gabrb3 gene. Mice with a maternal deletion (m−/p+) were viable and did not have any obvious developmental defects. Expression analysis of the maternal and paternal deletion mice confirmed that the Ube3a gene is maternally expressed in brain, and showed that the Atp10a and Gabrb3 genes are biallelically expressed in all brain sub-regions studied. Maternal (m−/p+), but not paternal (m+/p−), deletion mice had increased spontaneous seizure activity and abnormal EEG. Extensive behavioral analyses revealed significant impairment in motor function, learning and memory tasks, and anxiety-related measures assayed in the light-dark box in maternal deletion but not paternal deletion mice. Ultrasonic vocalization (USV) recording in newborns revealed that maternal deletion pups emitted significantly more USVs than wild-type littermates. The increased USV in maternal deletion mice suggests abnormal signaling behavior between mothers and pups that may reflect abnormal communication behaviors in human AS patients. Thus, mutant mice with a maternal deletion from Ube3a to Gabrb3 provide an AS mouse model that is molecularly more similar to the contiguous gene deletion form of AS in humans than mice with Ube3a mutation alone. These mice will be valuable for future comparative studies to mice with maternal deficiency of Ube3a alone.
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Affiliation(s)
- Yong-Hui Jiang
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America.
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38
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Sanz J, Arriaga F, Montesinos P, Ortí G, Lorenzo I, Cantero S, Puig N, Moscardó F, de la Rubia J, Sanz G, Sanz MA. Autoimmune hemolytic anemia following allogeneic hematopoietic stem cell transplantation in adult patients. Bone Marrow Transplant 2007; 39:555-61. [PMID: 17351645 DOI: 10.1038/sj.bmt.1705641] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Autoimmune hemolytic anemia (AIHA) after allogeneic hematopoietic stem cell transplantation (HSCT) is still not well characterized. The aim of this study was to analyze the incidence and risk factors for the development of AIHA, as well as its prognosis and response to treatment in a series of patients undergoing allogeneic HSCT at a single institution. Between 1996 and 2004, 272 adult patients with a variety of malignant hematopoietic disorders underwent allogeneic HSCT. Direct antiglobulin testing was performed in routine pretransfusion compatibility testing or after clinical suspicion of AIHA. Twelve patients developed AIHA after HSCT at a median time of 147 days (range, 41-170). The 3-year cumulative incidence of AIHA was 4.44%. Eight cold antibodies and four warm antibodies were detected. Multivariate analysis shows that HSCT from unrelated donors (P=0.02) and the development of chronic extensive graft-versus-host disease (GVHD) (P=0.0004) were the only independent factors associated with AIHA. Two patients are still alive. AIHA was never the primary cause of death but added morbidity in patients with other concomitant complications. Patients undergoing HSCT from unrelated donors and those who develop chronic extensive GVHD are especially predisposed for this complication.
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Affiliation(s)
- J Sanz
- Hematology Department, Hospital Universitario La Fe, Valencia, Spain
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Moscardó F, Senent L, Sanz J, Planelles D, Lorenzo I, Cervera J, Jiménez C, Montesinos P, Cantero S, Sanz M, Sanz G. 12: Early hematopoietic chimerism predicts engraftment after umbilical cord blood stem cell transplantation. Biol Blood Marrow Transplant 2007. [DOI: 10.1016/j.bbmt.2006.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Abstract
Protein measurement in urine has been used for many years for the diagnosis and monitoring of renal disease. The pattern of urinary protein excretion can be used to identify the cause of the disease and to classify proteinuria. In recent years, proteomics has proven to be a powerful tool in investigation and clinical medicine. Proteomics employs a protein separation method and the identification of proteins using mass spectrometry. One of the objectives of clinical proteomics is the identification of biological markers of disease. To accomplish this, it is necessary to have a normal proteome of the medium in question, which in our case is urine. Comparison of the normal urinary proteome with the urinary proteome from patients with a defined disease can detect proteins expressed differentially from one another. The aim of this review is to present the situation of urinary proteomics, putting special emphasis on its application in the diagnosis of glomerular diseases, renal allograft rejection, urological cancers and urolithiasis.
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de la Rubia J, Cantero S, Sanz GF, Remigia MJ, Monteagudo E, Moscardó F, Martín G, Lorenzo I, Jiménez C, Martínez J, Montesinos P, Jarque I, Sanz MA. Transplantation of CD34+ selected peripheral blood to HLA-identical sibling patients with aplastic anaemia: results from a single institution. Bone Marrow Transplant 2005; 36:325-9. [PMID: 15968276 DOI: 10.1038/sj.bmt.1705067] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We evaluated the use of CD34+ selected allogeneic peripheral blood as a source of hematopoietic progenitors for allogeneic transplantation in 11 patients with aplastic anemia (AA). The median age was 17 years (range, 6--9), and the median time between diagnosis and transplant 1 month (range, 1--4). Conditioning consisted of cyclophosphamide (50 mg/kg per day) on days--7 to--4 and antithymocyte globulin (30 mg/kg per day) on days--4 to--2 in nine patients. Total lymphoid irradiation was added to the preparative regimen for two. Graft-versus-host disease (GVHD) prophylaxis consisted of cyclosporine A and prednisone. Median doses of CD34+ and CD3+ cells infused were 3.91 x 10(6) and 0.3 x 10(6)/kg, respectively. The median time taken to achieve a neutrophil count >0.5 x 10(9)/l was 12 days and to recover a platelet count >20 x 10(9)/l, 13 days. Two patients developed acute GVHD grade I--II and one developed limited chronic GVHD. There were two treatment-related deaths. At a median follow-up of 44 months (range, 4--3), nine patients were alive with sustained and complete engraftment. This is a promising procedure in patients with AA, resulting in a rapid hematopoietic recovery, a low transplant-related mortality, and a low incidence of GVHD.
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Affiliation(s)
- J de la Rubia
- Bone Marrow Transplant Unit, Hematology Service, University Hospital La Fe, Valencia, Spain
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42
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Sanz J, Sanz G, Moscardoó F, Cupelli L, Montesinos P, Puig N, Lorenzo I, Benlloch L, Jarque I, de la Rubia J, Martı́nez J, Martı́n G, Sanz M. Regimen related toxicity after thiotepa, cyclophosphamide and intravenous busulfan as conditioning for allogeneic stem cell transplantation. Biol Blood Marrow Transplant 2005. [DOI: 10.1016/j.bbmt.2004.12.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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43
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Pérez Martínez J, Gallego E, Juliá E, Llamas F, López A, Palao F, Lorenzo I, López E, Illescas ML, Gómez Roldán C. [Embolization of non-functioning renal allograft: efficacy and control of systemic inflammation]. Nefrologia 2005; 25:422-7. [PMID: 16231510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023] Open
Abstract
BACKGROUND The graft intolerance syndrome (fever, pain, haematuria) may lead to a chronic inflammatory disease, with cardiovascular repercussion. Nephrectomy is considered the classical treatment of these cases but nowadays renal vascular embolization has been suggested as a possible alternative treatment. The present study concerns seven cases trated with renal vascular embolization in our hospital summarizing data of graft intolerance syndrome and the chronic inflammatory disease. MATERIAL AND METHODS Between january 2000 and december 2003 seven renal vascular embolization were performed in nonfunctioning renal allograft. The procedure was made with calibrated particles of 300-500micron. Data about complications related to the technique the same as analitic inflammatory parameters before and after treatment (CRP, ferritin, serum albumin, hemoglobin, erythropoietin) were registered. RESULTS The patients were two men and five women, with median age of 39,7 +/- 8,8 years. The period beween the dialysis and the embolization was of 10,0 +/-8,2 months. Comparing the perion of admission in the hospital due to nephrectomy which was of 17,86+/-4,41 days, the period because of embolization was shorter, being 8,14 +/- 4,53 days. All analitic parameters studied, clearly improved after embolization with decrease of ferritin and CRP, increase of albumin and better hemoglobin level with lower erythropoietin dose. In five of the seven patients there was no renal captation with CT or gammagraphy. Four patients presented a postembolization syndrome, but no other important complication was registered. Neither reembolization nor renal nephrectomy was neccesary in any of the seven cases. CONCLUSION Percutaneous renal embolization is a simple, easy, safety and effective technique that must be considered as an alternative treatment to nephrectomy, resolving the chronic inflammatory disease secondary to the graft intolerance syndrome.
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Affiliation(s)
- J Pérez Martínez
- Servicios de Nefrología, Complejo Hospitalario Universitario Albacete
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López Montes A, Pérez Martínez J, Lorenzo I, Blanch JJ, de Ory F, Gómez Roldán C, López Rubio E, Llamas F, Gallego Valcárce E, Olivas E. [Nephropathia caused by hantavirus puumala: a case report]. Nefrologia 2005; 25:195-9. [PMID: 15912658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023] Open
Abstract
We present a patient from Germany with Hantavirus infection, admitted in the Emergency room of our hospital, with fever, thrombocytopenia, acute renal failure, oliguria, mild proteinuria and hematuria. Percutaneous renal biopsy revealed an acute interstitial nephritis without medulla haemorrhages. The virus infection confirmation was made by detection of IgM against Hantavirus Puumala. This infection should be considered in patients with thrombocytopenia, fever and acute renal failure, over all if they are from North and Central Europe.
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Affiliation(s)
- A López Montes
- Unidad de Nefrología, Complejo Hospitalario Universitario de Albacete.
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45
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de la Rubia J, Martín G, Martínez J, Lorenzo I, Sanz G, Jarque I, Moscardó F, Jiménez C, Lorente P, Camps A, Sanz MA. Peripheral blood stem cell collection after intermediate-dose cytarabine in adult patients with acute myeloblastic leukemia undergoing autologous blood stem cell transplantation in first complete remission. Int J Hematol 2004; 80:168-73. [PMID: 15481447 DOI: 10.1532/ijh97.e0321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Different strategies for collecting peripheral blood stem cells (PBSC) for autologous blood stem cell transplantation (ABSCT) have been reported for patients with acute myeloblastic leukemia (AML). We compared the clinical results of 2 consecutive protocols in 75 adult patients with AML in first complete remission who underwent ABSCT. In the first 56 patients (group A), PBSC were collected after induction and/or consolidation chemotherapy courses. In the subsequent 19 patients (group B), PBSC collection was done after a further intensification course with intermediate-dose cytarabine and mitoxantrone. Hematopoietic engraftment was similar in the 2 groups, with the median times to reach 0.5 x 10(9) neutrophils/L and 20 x 10(9) platelets/L being 13 days each in group A, and 12 days and 24 days, respectively, in group B. There were 3 graft failures (all in group A) and 5 transplantation-related deaths (6.6%, 4 in group A and 1 in group B). Although not statistically significant, the 3-year probabilities of both relapse (31% versus 66%; P = .12) and disease-free survival (60% versus 36%; P = .1) compared favorably for group B. Our study suggests that collection of PBSC after additional intensification can result in a better outcome for AML patients who undergo ABSCT.
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Affiliation(s)
- J de la Rubia
- Bone Marrow Transplant Unit, Hematology Service, University Hospital La Fe, Valencia, Spain
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Sanz G, Moscardó F, Jiménez C, Lorenzo I, Planelles D, Larrea L, Cervera J, Benlloch L, Barragán E, Senent L, Cantero S, Montesinos P, Remigia M. Unrelated-donor cord blood transplantation in patients with chronic myeloid leukemia. Biol Blood Marrow Transplant 2004. [DOI: 10.1016/j.bbmt.2004.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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47
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López Montes A, Lorenzo I, Pérez Martínez J. [Porphyria and inappropriate antidiuretic hormone syndrome]. Nefrologia 2004; 24 Suppl 3:85-8. [PMID: 15219077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023] Open
Abstract
We report the case of a 37-years-old woman with inappropriate antidiuretic hormone syndrome due to an attack of acute porphyria. The patient was admitted to our hospital for abdominal pain, sleepiness and pink urine. Family and personal history were normal. Seven days before the admission the patient had a laparoscopy operation for endometriosis in her left ovary. The patient had had two normal pregnancies. The physical examination was normal, the skin turgor was good and no edema was present, the blood pressure was 140/90 mmHg. Her serum sodium was 114 mEq/L, serum osmolality 243 mOsm/kg, urine sodium 146 mEq/L and urine osmolality 457 mOsm/kg. Values from laboratory examination revealed a normal peripheral haematogram, a normal kidney function, normal liver, adrenal and thyroid function. The urine tested for amino-levulinic acid, coproporphyrin and uroporphyrin was strongly positive. These findings are compatible with Porphyria Variegata or Coproporphyria Hereditary. A diagnosis of Porphyria acute with SIADH was made, and water fluid restriction, i.v. hypertonic saline infusion and furosemide to correct the hyponatremia was begun. In 1966, lesions of the median eminence of the hypothalamus and both hypothalamic -hypophyseal tracts were described in a patient with Porphyria acute intermittent and SIADH. It was suggested that SIADH occurred because of damage to these areas of the brain from excessive exposure to porphyrins.
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Affiliation(s)
- A López Montes
- Servicio de Nefrología, Hospital General Universitario de Albacete, Albacete.
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Gallego E, López A, Lorenzo I, López E, Llamas F, Illescas ML, Andrés E, Serrano A, Olivas E, Gómez Roldán C. [Influence of early or late referral to nephrologist over morbidity and mortality in hemodialysis]. Nefrologia 2003; 23:234-42. [PMID: 12891938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023] Open
Abstract
OBJECTIVE We studied the influence of early vs late referral to nephrologist of patients with chronic renal failure over clinical situation at the onset of hemodialysis and outcome. SUBJECTS AND METHODS From january 1994 to december 1998, 139 patients started hemodialysis for end-stage renal disease at the Hospital General de Albacete, all of them included in the study and clinical follow-up concluded in december 2001. Patients with rapidly progressive glomerulonephritis were excluded. Early (ER) and late referral (LR) were defined by the time of first nephrology encounter greater than or less than 6 months respectively, before iniciation of hemodialysis. RESULTS 106 patients (76.25%) were referred early; mean follow-up time 6.3 +/- 4.5 years. 33 patients (23.74%) had late referral, follow-up time was less then six months, 18 patients were followed during less than 4 weeks. There were no differences in demographic data and comorbid conditions between LR and ER patients (age, cardiac and vascular disease, diabetes, neoplasia...). Mean plasma concentration of creatinine and urea was significantly greater, whereas hematocrit and albumin were less in the LRA than the ER group. Emergency dialysis through central vein catheterisation was more frequent in the LR group. Number of admissions and duration of hospital stay were higher in the LR group. No significant differences in nutrition, dialysis doses or anemia were found between the two groups after 6 and 12 months of hemodialysis. Long term outcome was similar in both groups: no significant differences were found in percentage of patients transplanted or deceased after 3 years of treatment. Survival analysis failed to show a difference between ER and LR groups (mean survival time was 73.6 +/- 4.3 months and 73.0 +/- 6 months respectively). CONCLUSION Late referral to the nephrologist is associated with increased early morbidity vs early referral, although long term outcome is not worse if predialysis comorbid conditions are comparable and dialysis care achieve equal results in dialysis doses, nutrition and anemia in both groups in the first months of treatment. Improvement of outcome of patients referred early to the nephrologist will depend on the adoption of preventive measures over comorbidity factors that should be applied in early stages of renal disease.
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Affiliation(s)
- E Gallego
- Servicio de Nefrología, Hospital General Universitario de Albacete, Hermanos Falcó, s/n 02002 Albacete.
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Constenla M, Garcia-Arroyo R, Lorenzo I, Carrete N, Campos B, Palacios P. Docetaxel, 5-fluorouracil, and leucovorin as treatment for advanced gastric cancer: results of a phase II study. Gastric Cancer 2003; 5:142-7. [PMID: 12378340 DOI: 10.1007/s101200200025] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Previous studies have shown that the taxane, docetaxel, is effective in treating gastric cancer. The aim of this study was to assess the efficacy and safety of docetaxel in combination with 5-fluorouracil (5-FU) and leucovorin (LV). METHODS Thirty patients with histologically proven locally advanced and/or metastatic gastric cancer with WHO performance status 0-2 were enrolled and received either 75 or 100 mg/m(2) docetaxel as a 1-h intravenous infusion on day 1 every 28 days. All patients also received 5-FU (1800 mg/m(2)) plus LV (500 mg/m(2)), by continuous intravenous infusion over 24 h on days 1, 8, and 15 every 28 days. Chemotherapy was given for at least two cycles. RESULTS Of the 25 evaluable patients, 3 showed a complete response, 4 showed a partial response, and 11 patients had stable disease. The overall response rate was 28.0% (95% confidence interval [CI], 10.4, 45.6). The median time to progression was 5.9 months (95% CI, 5.4, 6.5), and the median overall survival was 7.7 months (95% CI, 7.2, 8.3) for the intent-to-treat population. The most frequent grade III and IV hematological toxicities were neutropenia and anemia. Febrile neutropenia was observed in 10% of patients and 2.4% of cycles. The prophylactic use of granulocyte colony-stimulating factor (G-CSF) in 3 patients reduced the incidence and severity of neutropenia. Other hematological toxicities were rare. CONCLUSION Docetaxel in combination with weekly 5-FU and LV is effective in treating patients with advanced/metastatic gastric cancer. This new docetaxel-containing combination shows promise as a third-generation treatment option for gastric cancer.
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Affiliation(s)
- Manuel Constenla
- Medical Oncology Service, Complexo Hospitalario de Pontevedra, C/Loureiro Crespo, 2, 36001 Pontevedra, Spain
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Saavedra S, Sanz GF, Jarque I, Moscardó F, Jiménez C, Lorenzo I, Martín G, Martínez J, De La Rubia J, Andreu R, Mollá S, Llopis I, Fernández MJ, Salavert M, Acosta B, Gobernado M, Sanz MA. Early infections in adult patients undergoing unrelated donor cord blood transplantation. Bone Marrow Transplant 2002; 30:937-43. [PMID: 12476288 DOI: 10.1038/sj.bmt.1703764] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2002] [Accepted: 07/25/2002] [Indexed: 11/10/2022]
Abstract
Early transplant-related mortality after cord blood transplantation from unrelated donors (UD-CBT) is close to 50%, mainly due to infectious complications. We have studied the incidence and characteristics of early infections (before day 100) in a series of 27 adult patients (median age 30 years, range 16-46) undergoing UD-CBT at a single institution. All 27 patients experienced at least one infectious episode and 18 (66%) suffered a severe infection. Bacteremia occurred in 55% of patients (13 with Gram-positive and 11 with Gram-negative microorganisms). Eleven of 19 CMV-seropositive patients (58%) developed CMV antigenemia and one patient had CMV disease. Fungal infections were documented in three patients (11%), comprising invasive fungal infections in two cases and a localized esophagitis in one. Ten patients (37%) died before day 100 after transplantation. Infection was considered the primary cause of death in four patients (sepsis by Acinetobacter spp. bacteremia in three cases) and contributed to death in another four. The most striking findings in this series were the high incidence of, and mortality due to multiresistant Acinetobacter spp. and the low incidence of and lack of mortality due to CMV disease. This report confirms that infection is a major complication in adults undergoing UD-CBT.
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Affiliation(s)
- S Saavedra
- Bone Marrow Transplant Unit, Department of Haematology, Hospital Universitario La Fe, Valencia, Spain
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