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  1. Article ; Online: Decidual stromal cells for the treatment of severe COVID-19 ARDS.

    Granton, John / Novitzky-Basso, Igor N / Binnie, Alexandra / Mattsson, Jonas

    Intensive care medicine

    2023  Volume 49, Issue 12, Page(s) 1552–1554

    MeSH term(s) Humans ; COVID-19 ; Respiratory Distress Syndrome/therapy ; Stromal Cells
    Language English
    Publishing date 2023-11-15
    Publishing country United States
    Document type Letter
    ZDB-ID 80387-x
    ISSN 1432-1238 ; 0340-0964 ; 0342-4642 ; 0935-1701
    ISSN (online) 1432-1238
    ISSN 0340-0964 ; 0342-4642 ; 0935-1701
    DOI 10.1007/s00134-023-07262-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Early recovery of natural killer cells post T-cell depleted allogeneic stem cell transplantation using alemtuzumab "in the bag".

    Davison, Glenda M / Opie, Jessica J / Davids, Saarah F G / Mohammed, Rygana / Novitzky, Nicolas

    Transplant immunology

    2024  , Page(s) 102045

    Abstract: Background: Allogeneic stem cell transplantation (SCT) is a critical therapy for haematological malignancy but may lead to acute and chronic graft versus host disease (GvHD). T-cell depletion with alemtuzumab, either in vivo or ex vivo, reduces the ... ...

    Abstract Background: Allogeneic stem cell transplantation (SCT) is a critical therapy for haematological malignancy but may lead to acute and chronic graft versus host disease (GvHD). T-cell depletion with alemtuzumab, either in vivo or ex vivo, reduces the incidence of GvHD but is a risk factor for disease relapse and poor immune reconstitution. Natural killer (NK) cells are the first lymphocytes to recover. Classical NK cells make up >90% of the normal circulating population and can directly kill neoplastic or virally infected cells while the regulatory subset makes up <10%, secretes cytokines and is not cytotoxic. The recovery and balance of these subsets post SCT remains controversial, with most studies analysing patients who received unmanipulated grafts and in vivo immunosuppression.
    Objective: The aim was to assess the early recovery of NK cells in 18 consecutive patients receiving ex vivo T-cell depleted SCT and to compare the results to 25 individuals receiving haploidentical non-T cell depleted grafts.
    Methods: All patients received myeloablative conditioning. After stem cell collection, the stem cells of the T cell depleted group were treated "in the bag" with alemtuzumab (CAMPATH 1H) at a concentration of 1mg/10
    Results: The recovery of lymphocytes was slow in both groups. Those receiving non-T cell depleted grafts had significantly higher T cell counts at day 21 and 28 when compared to the T cell depleted group (P < 0.05). In contrast, NK cells in the ex vivo T-cell depleted patients recovered rapidly and by day 21 was no different to normal (p > 0.05), while the non-T cell depleted group had significantly decreased numbers (p < 0.001), only recovering at day 90. Both groups had abnormal NK cell subset ratios with significantly elevated percentages of regulatory cells (p < 0.05). However, significant differences were observed between the two groups with those receiving T cell depleted grafts having lower percentages of regulatory cells as well as higher numbers of classical NK cells at day 21 and 28 (p < 0.01).
    Conclusion: This study of ex vivo T-cell depleted SCT's demonstrates that NK cells recover quicker when compared to those receiving unfractionated grafts. These results may have implications for GvHD and the GvL effect which warrants further study.
    Language English
    Publishing date 2024-04-17
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1160846-8
    ISSN 1878-5492 ; 0966-3274
    ISSN (online) 1878-5492
    ISSN 0966-3274
    DOI 10.1016/j.trim.2024.102045
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  3. Article ; Online: In the South African setting, HIV-associated Burkitt lymphoma is associated with frequent leukaemic presentation, complex cytogenetic karyotypes, and adverse clinical outcomes.

    Opie, Jessica / Antel, Katherine / Koller, Ania / Novitzky, Nicolas

    Annals of hematology

    2020  Volume 99, Issue 3, Page(s) 571–578

    Abstract: ... and 57% (n = 28) were females. Their median CD4 count was 240 cells/μl (IQR 103-423 cells/μl ... The majority, 61% (n = 30), had leukaemic presentation, and 20% (n = 10) had a complex karyotype ... on conventional karyotyping. Seventy-seven percent (n = 36) received various protocols of combination intensive ...

    Abstract South Africa (SA) has a high prevalence of human immunodeficiency virus (HIV) infection. People living with HIV are at markedly increased risk of developing Burkitt lymphoma (BL), which is characterized by the MYC translocation. There is a paucity of survival data of HIV-associated Burkitt lymphoma/leukaemia (HIV-BL) cases from SA, and the relationship between karyotype and outcomes has not been widely reported. Here we report the clinico-pathological characteristics of a cohort of cytogenetically confirmed HIV-BL cases. A retrospective, descriptive review was conducted of clinico-pathological features of HIV-BL patients newly diagnosed and treated between 2005 and 2014 at our tertiary academic institution in Cape Town. Only HIV-BL patients with cytogenetic evidence of a MYC translocation were included for analysis. A multivariable Cox proportional hazards model assessed the impact of variables on overall survival (OS). Forty-nine patients met inclusion criteria. Their median age was 37 years (IQR 30-43 years) and 57% (n = 28) were females. Their median CD4 count was 240 cells/μl (IQR 103-423 cells/μl). The majority, 61% (n = 30), had leukaemic presentation, and 20% (n = 10) had a complex karyotype on conventional karyotyping. Seventy-seven percent (n = 36) received various protocols of combination intensive chemotherapy, excluding rituximab. Their OS was 64% (95% CI 45-77%) at 6 months, and 34% (95% CI 17-51%) at 5 years. Leukaemic presentation and a complex karyotype gave a 2.7-fold (95% CI 1.0-6.7) and 2.6-fold (95% CI 1.1-6.6) increased risk of mortality respectively, which were statistical significant (p < 0.05). We report 49 newly diagnosed, cytogenetically confirmed HIV-BL patients at our institution over a 10-year period. There was a high proportion of complex karyotypes and leukaemic presentation, which both independently adversely affected survival. This may be due to differences in the pathobiology of HIV-BL that requires further study and could lead to therapeutic advances in this patient group.
    MeSH term(s) Abnormal Karyotype ; Adult ; Burkitt Lymphoma/drug therapy ; Burkitt Lymphoma/etiology ; Burkitt Lymphoma/genetics ; Burkitt Lymphoma/mortality ; Disease-Free Survival ; Female ; HIV Infections/complications ; HIV Infections/drug therapy ; HIV Infections/genetics ; HIV Infections/mortality ; HIV-1 ; Humans ; Male ; Proto-Oncogene Proteins c-myc/genetics ; Retrospective Studies ; Survival Rate
    Chemical Substances MYC protein, human ; Proto-Oncogene Proteins c-myc
    Language English
    Publishing date 2020-01-18
    Publishing country Germany
    Document type Clinical Trial ; Journal Article
    ZDB-ID 1064950-5
    ISSN 1432-0584 ; 0939-5555 ; 0945-8077
    ISSN (online) 1432-0584
    ISSN 0939-5555 ; 0945-8077
    DOI 10.1007/s00277-020-03908-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Population-based real-world registry study to evaluate clinical outcomes of chronic graft-versus-host disease.

    Novitzky-Basso, Igor / Schain, Frida / Batyrbekova, Nurgul / Webb, Thomas / Remberger, Mats / Keating, Armand / Mattsson, Jonas

    PloS one

    2023  Volume 18, Issue 3, Page(s) e0282753

    Abstract: ... treatment.: Results: cGVHD incidence among patients surviving ≥6 months post-HSCT (n = 1246) was 71.9 ...

    Abstract Introduction: Chronic graft-versus-host disease (cGVHD) is a serious immune-mediated complication after allogeneic haematopoietic stem cell transplantation (HSCT), but in patients with malignancy, cGVHD development is associated with superior survival. Lack of reliable biomarkers and clinical underreporting means there is insufficient understanding of cGVHD clinical outcomes and balance between cGVHD treatment and maintaining beneficial graft-versus-tumour effects.
    Methods: We performed a Swedish population-wide registry study following patients who underwent allogeneic HSCT 2006-2015. cGVHD status was retrospectively classified using a real-world method based on the timing and extent of systemic immunosuppressive treatment.
    Results: cGVHD incidence among patients surviving ≥6 months post-HSCT (n = 1246) was 71.9%, significantly higher than previously reported. 5-year overall survival in patients surviving ≥6 months post-HSCT was 67.7%, 63.3%, and 65.3%, in non-, mild, and moderate-severe cGVHD, respectively. Non-cGVHD patients had a mortality risk almost five-fold higher compared to moderate-severe cGVHD patients 12-months post-HSCT. Moderate-severe cGVHD patients had greater healthcare utilization compared with mild and non cGVHD patients.
    Conclusion: cGVHD incidence was high among HSCT survivors. Non-cGVHD patients had higher mortality during the first 6 months of follow-up; however, moderate-severe cGVHD patients had more comorbidities and healthcare utilization. This study highlights the urgent need for new treatments and real-time methods to monitor effective immunosuppression after HSCT.
    MeSH term(s) Humans ; Bronchiolitis Obliterans Syndrome ; Retrospective Studies ; Graft vs Host Disease/etiology ; Hematopoietic Stem Cell Transplantation/adverse effects ; Hematologic Neoplasms/pathology ; Chronic Disease
    Language English
    Publishing date 2023-03-09
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0282753
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  5. Article ; Online: Correction to: In the South African setting, HIV-associated Burkitt lymphoma is associated with frequent leukaemic presentation, complex cytogenetic karyotypes, and adverse clinical outcomes.

    Opie, Jessica / Antel, Katherine / Koller, Ania / Novitzky, Nicolas

    Annals of hematology

    2020  Volume 99, Issue 3, Page(s) 579

    Abstract: The article "In the South African setting, HIV-associated Burkitt lymphoma is associated with frequent leukaemic presentation, complex cytogenetic karyotypes, and adverse clinical outcomes". ...

    Abstract The article "In the South African setting, HIV-associated Burkitt lymphoma is associated with frequent leukaemic presentation, complex cytogenetic karyotypes, and adverse clinical outcomes".
    Language English
    Publishing date 2020-02-19
    Publishing country Germany
    Document type Journal Article ; Published Erratum
    ZDB-ID 1064950-5
    ISSN 1432-0584 ; 0939-5555 ; 0945-8077
    ISSN (online) 1432-0584
    ISSN 0939-5555 ; 0945-8077
    DOI 10.1007/s00277-020-03964-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Treosulfan- versus busulfan-based conditioning in allogeneic hematopoietic cell transplantation for myelodysplastic syndrome: a single-center retrospective propensity score-matched cohort study.

    Pasic, Ivan / Moya, Tommy Alfaro / Remberger, Mats / Chen, Carol / Gerbitz, Armin / Kim, Dennis Dong Hwan / Kumar, Rajat / Lam, Wilson / Law, Arjun Datt / Lipton, Jeffrey H / Michelis, Fotios V / Novitzky-Basso, Igor / Viswabandya, Auro / Mattsson, Jonas

    Transplantation and cellular therapy

    2024  

    Abstract: ... with either fludarabine-treosulfan (FT) (n=46) or fludarabine-busulfan with total body irradiation (FBT200) (n=92 ...

    Abstract Treosulfan has shown promise in allogeneic hematopoietic cell transplantation (HCT) for its myeloablative properties and low toxicity. In this single-center retrospective propensity score-matched cohort study we compared treosulfan- and busulfan-based conditioning in allogeneic HCT for patients with myelodysplastic syndrome (MDS). This study included 138 adults who underwent allogeneic HCT for MDS or chronic myelomonocytic leukemia (CMML) at Princess Margaret Hospital, Toronto 2015-2022. Using propensity score matching, we compared transplant outcomes between two well-matched cohorts who received conditioning with either fludarabine-treosulfan (FT) (n=46) or fludarabine-busulfan with total body irradiation (FBT200) (n=92). A scoring system based on patient age, Karnofsky performance score and hematopoietic cell transplant comorbidity index was used to assign patients based on fitness to low-dose (30 g/m
    Language English
    Publishing date 2024-04-20
    Publishing country United States
    Document type Journal Article
    ZDB-ID 3062231-1
    ISSN 2666-6367
    ISSN (online) 2666-6367
    DOI 10.1016/j.jtct.2024.04.014
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  7. Article ; Online: Hodgkin lymphoma at Groote Schuur Hospital, South Africa: the effect of HIV and bone marrow infiltration.

    Swart, Luhan / Novitzky, Nicolas / Mohamed, Zainab / Opie, Jessica

    Annals of hematology

    2018  Volume 98, Issue 2, Page(s) 381–389

    Abstract: Human immunodeficiency virus (HIV) is associated with an increased risk of developing Hodgkin lymphoma (HL). South Africa (SA) has the highest HIV prevalence rate in the world. There is currently no outcome-based data for HIV-associated HL from SA. A ... ...

    Abstract Human immunodeficiency virus (HIV) is associated with an increased risk of developing Hodgkin lymphoma (HL). South Africa (SA) has the highest HIV prevalence rate in the world. There is currently no outcome-based data for HIV-associated HL from SA. A bone marrow database was compiled of all bone marrow biopsies (BMB) reported at National Health Laboratory Service (NHLS) Groote Schuur Hospital (GSH) between January 2005 and December 2012. Patients who had a BMB performed for staging of HL or where HL was diagnosed on the BMB were included for further analysis. Clinical and laboratory data was extracted from medical and laboratory records. Primary outcome measures included histological subtype, bone marrow infiltration (BMI) by HL, CD4 count, HIV-viral load (HIV-VL), tuberculosis (TB) data, treatment with chemotherapy and 5-year overall survival (OS). The database included 6569 BMB and 219 patients of these had HL and were included for analysis. The median age at presentation (32 years) was similar in the HIV+ and HIV- populations. While males predominated in the HIV- group, females predominated in the HIV+ group (male:female ratio of 1.5:1 vs 0.7:1, respectively). The majority of patients (71%) were HIV negative (HIV-) and 29% were HIV positive (HIV+). The diagnosis of HL was made on BMB in 17% of cases. BMI was seen in 37% (82/219) overall, and was found in more HIV+ patients (61%; 39/64) than HIV- patients (28%; 43/155; p = 0.03). The histological subtype varied according to HIV status with nodular sclerosis classical Hodgkin lymphoma (NSCHL) being most frequent in the HIV- group and classical Hodgkin lymphoma (CHL)-unclassifiable the most frequent in the HIV+ group. HIV+ patients had a median CD4 count of 149 × 10
    MeSH term(s) Adolescent ; Adult ; Aged ; Aged, 80 and over ; Biopsy ; Bone Marrow/metabolism ; Bone Marrow/pathology ; Bone Marrow/virology ; CD4 Lymphocyte Count ; Disease-Free Survival ; Female ; HIV Seropositivity/blood ; HIV Seropositivity/mortality ; HIV Seropositivity/pathology ; HIV Seropositivity/virology ; HIV-1 ; Hodgkin Disease/blood ; Hodgkin Disease/mortality ; Hodgkin Disease/pathology ; Hodgkin Disease/virology ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Sex Factors ; South Africa/epidemiology ; Survival Rate ; Viral Load
    Language English
    Publishing date 2018-11-05
    Publishing country Germany
    Document type Clinical Trial ; Journal Article
    ZDB-ID 1064950-5
    ISSN 1432-0584 ; 0939-5555 ; 0945-8077
    ISSN (online) 1432-0584
    ISSN 0939-5555 ; 0945-8077
    DOI 10.1007/s00277-018-3533-0
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  8. Article ; Online: Outcomes of Antithymocyte Globulin-Post-Transplantation Cyclophosphamide-Cyclosporine-Based versus Antithymocyte Globulin-Based Prophylaxis for 10/10 HLA-Matched Unrelated Donor Allogeneic Hematopoietic Cell Transplantation.

    Salas, Maria Queralt / Alfaro-Moya, Tommy / Atenafu, Eshetu G / Datt Law, Arjun / Lam, Wilson / Pasic, Ivan / Novitzky-Basso, Igor / Santos Carreira, Abel / Chen, Carol / Michelis, Fotios V / Gerbitz, Armin / Howard Lipton, Jeffrey / Kim, Dennis Dong Hwan / Kumar, Rajat / Mattsson, Jonas / Viswabandya, Auro

    Transplantation and cellular therapy

    2024  Volume 30, Issue 5, Page(s) 536.e1–536.e13

    Abstract: ... at our institution who received ATG(4.5)/PTCy (n = 127) or ATG(2)/PTCy (n = 223) with those who received ATG-based ... prophylaxis without PTCy (n = 84). The rates of grade II-IV and grade III-IV acute GVHD (aGVHD) at day +100 ...

    Abstract In 2015, dual T cell depletion with antithymocyte globulin (ATG) and post-transplantation cyclophosphamide (PTCy) combined with cyclosporine A (CsA) replaced our prior institutional graft-versus-host disease (GVHD) prophylaxis regimen of 4.5 mg/kg ATG, CsA, and mycophenolate mofetil (MMF) (ATG-based) in 10/10 HLA-matched unrelated donor (MUD) peripheral blood allogeneic hematopoietic stem cell transplantation (allo-HCT). The initial ATG dose of 4.5 mg/kg [ATG(4.5)/PTCy] was reduced to 2 mg/kg [ATG(2)/PTCy] in 2018. This study compares the results obtained from 444 adults undergoing MUD allo-HCT at our institution who received ATG(4.5)/PTCy (n = 127) or ATG(2)/PTCy (n = 223) with those who received ATG-based prophylaxis without PTCy (n = 84). The rates of grade II-IV and grade III-IV acute GVHD (aGVHD) at day +100 and moderate/severe chronic GVHD (cGVHD) at 1 year were 35.7%, 21.6%, and 14.7%, respectively, in patients receiving ATG-based prophylaxis without PTCy; 16.5%, 4.9%, and 4.3% in patients receiving ATG(4.5)/PTCy; and 23.3% (P = .004), 8.0% (P < .001), and 14.1% (P =.006) in patients receiving ATG(2)/PTCy. One-year overall survival (OS), nonrelapse mortality (NRM), and GVHD-free relapse-free survival (GRFS) were 69.8%, 25.3%, and 52.0%, respectively, for patients receiving ATG-based prophylaxis without PTCy; 82.7%, 17.3%, and 59.8% for patients receiving ATG(4.5)/PTCy; and 78.3% (P = .446), 14.7% (P = 101), and 56.2% (P = .448) for patients receiving ATG(2)/PTCy. On univariate analyses, the use of ATG(2)/PTCy was associated with a lower risk of NRM (hazard ratio, .54; P = .023) compared with the use of ATG-based prophylaxis without PTCy. ATG(2)/PTCy prophylaxis effectively prevents GVHD and is associated with comparable relapse risk, OS, and GRFS as seen with ATG(4.5)/PTCy and ATG-based prophylaxis without PTCy.
    MeSH term(s) Humans ; Antilymphocyte Serum/therapeutic use ; Hematopoietic Stem Cell Transplantation/adverse effects ; Middle Aged ; Male ; Female ; Graft vs Host Disease/prevention & control ; Cyclophosphamide/therapeutic use ; Adult ; Unrelated Donors ; Cyclosporine/therapeutic use ; Cyclosporine/administration & dosage ; Aged ; Transplantation, Homologous ; Immunosuppressive Agents/therapeutic use ; Young Adult ; Treatment Outcome ; HLA Antigens/immunology ; Adolescent ; Retrospective Studies
    Chemical Substances Antilymphocyte Serum ; Cyclophosphamide (8N3DW7272P) ; Cyclosporine (83HN0GTJ6D) ; Immunosuppressive Agents ; HLA Antigens
    Language English
    Publishing date 2024-01-27
    Publishing country United States
    Document type Journal Article ; Comparative Study
    ZDB-ID 3062231-1
    ISSN 2666-6367
    ISSN (online) 2666-6367
    DOI 10.1016/j.jtct.2024.01.075
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  9. Article ; Online: Propensity score matching analysis comparing the efficacy of Ruxolitinib to historical controls in second-line or beyond treatment for chronic GvHD after steroid failure.

    Novitzky-Basso, Igor / Linn, Swe Mar / White, Jennifer / Elemary, Mohamed / Xenocostas, Anargyros / Deotare, Uday / Kelly, Kate / Hamad, Nada / Tan, Sui / Culos, Samantha / Law, Arjun / Kumar, Rajat / Mattsson, Jonas / Kim, Dennis Dong Hwan

    Bone marrow transplantation

    2023  Volume 58, Issue 9, Page(s) 1024–1032

    Abstract: Established first-line therapy for chronic graft-versus-host disease (cGvHD) comprises corticosteroids with/without calcineurin inhibitors, but about half of cGvHD patients are refractory to corticosteroid therapy. The present study retrospectively ... ...

    Abstract Established first-line therapy for chronic graft-versus-host disease (cGvHD) comprises corticosteroids with/without calcineurin inhibitors, but about half of cGvHD patients are refractory to corticosteroid therapy. The present study retrospectively analyzed treatment outcomes in 426 patients and undertook a propensity-score matching (PSM) analysis between ruxolitinib (RUX) treated group and a historical group of cGvHD patients treated with best available treatment (BAT). PSM process adjusted unbalanced risk factors between the 2 groups, including GvHD severity, HCT-CI score, and treatment line, extracting 88 patients (44 in BAT/RUX groups each) for final analysis. In PSM subgroup, RUX group showed 74.7% 12 months' FFS rate vs 19.1% for BAT group (p < 0.001), whereas 12 months' OS rates were 89.2% and 77.7%, respectively. Multivariate analysis for FFS confirmed RUX superiority over BAT together with HCT-CI score 0-2 vs ≥3. For OS, RUX was superior to BAT, while age ≥60 years and severe grade cGvHD adversely impacted OS. In PSM subgroup, at months 0, 3, and 6, 4.5%, 12.2% and 22.2% more patients in RUX group could discontinue prednisone compared to BAT group, respectively. In conclusion, the current study showed that for FFS, RUX was superior to BAT as second-line therapy or beyond in cGvHD patients after therapy failure.
    MeSH term(s) Humans ; Middle Aged ; Graft vs Host Disease/etiology ; Retrospective Studies ; Propensity Score ; Bronchiolitis Obliterans Syndrome ; Prednisone ; Hematopoietic Stem Cell Transplantation/adverse effects
    Chemical Substances ruxolitinib (82S8X8XX8H) ; Prednisone (VB0R961HZT)
    Language English
    Publishing date 2023-06-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 632854-4
    ISSN 1476-5365 ; 0268-3369 ; 0951-3078
    ISSN (online) 1476-5365
    ISSN 0268-3369 ; 0951-3078
    DOI 10.1038/s41409-023-02020-5
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  10. Article ; Online: Nucleosome conformation dictates the histone code.

    Marunde, Matthew R / Fuchs, Harrison A / Burg, Jonathan M / Popova, Irina K / Vaidya, Anup / Hall, Nathan W / Weinzapfel, Ellen N / Meiners, Matthew J / Watson, Rachel / Gillespie, Zachary B / Taylor, Hailey F / Mukhsinova, Laylo / Onuoha, Ugochi C / Howard, Sarah A / Novitzky, Katherine / McAnarney, Eileen T / Krajewski, Krzysztof / Cowles, Martis W / Cheek, Marcus A /
    Sun, Zu-Wen / Venters, Bryan J / Keogh, Michael-C / Musselman, Catherine A

    eLife

    2024  Volume 13

    Abstract: Histone post-translational modifications (PTMs) play a critical role in chromatin regulation. It has been proposed that these PTMs form localized 'codes' that are read by specialized regions (reader domains) in chromatin-associated proteins (CAPs) to ... ...

    Abstract Histone post-translational modifications (PTMs) play a critical role in chromatin regulation. It has been proposed that these PTMs form localized 'codes' that are read by specialized regions (reader domains) in chromatin-associated proteins (CAPs) to regulate downstream function. Substantial effort has been made to define [CAP: histone PTM] specificities, and thus decipher the histone code and guide epigenetic therapies. However, this has largely been done using the reductive approach of isolated reader domains and histone peptides, which cannot account for any higher-order factors. Here, we show that the [BPTF PHD finger and bromodomain: histone PTM] interaction is dependent on nucleosome context. The tandem reader selectively associates with nucleosomal H3K4me3 and H3K14ac or H3K18ac, a combinatorial engagement that despite being in cis is not predicted by peptides. This in vitro specificity of the BPTF tandem reader for PTM-defined nucleosomes is recapitulated in a cellular context. We propose that regulatable histone tail accessibility and its impact on the binding potential of reader domains necessitates we refine the 'histone code' concept and interrogate it at the nucleosome level.
    MeSH term(s) Nucleosomes ; Histones/metabolism ; Histone Code ; Chromatin ; Protein Processing, Post-Translational ; Peptides/metabolism
    Chemical Substances Nucleosomes ; Histones ; Chromatin ; Peptides
    Language English
    Publishing date 2024-02-06
    Publishing country England
    Document type Journal Article
    ZDB-ID 2687154-3
    ISSN 2050-084X ; 2050-084X
    ISSN (online) 2050-084X
    ISSN 2050-084X
    DOI 10.7554/eLife.78866
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