Identification of Novel Drug Targets for Osteoporosis through Characterisation of the Genetic Basis of High Bone Mass

通过表征高骨量的遗传基础鉴定骨质疏松症的新药物靶点

基本信息

  • 批准号:
    MR/V00199X/1
  • 负责人:
  • 金额:
    $ 38.26万
  • 依托单位:
  • 依托单位国家:
    英国
  • 项目类别:
    Fellowship
  • 财政年份:
    2021
  • 资助国家:
    英国
  • 起止时间:
    2021 至 无数据
  • 项目状态:
    未结题

项目摘要

Osteoporosis is a common condition caused by thinning of bones. It worsens with age and makes bones more likely to break (fracture). 1 in 3 women and 1 in 5 men over the age of 50 will break a bone in their lifetime because of osteoporosis. Fractures can have severe consequences on mobility, independence and life expectancy. Most current osteoporosis treatments focus on preventing further bone loss rather than rebuilding bone. Long term use of these treatments has been found to actually increase the risk of certain types of uncommon fractures and can rarely cause damage to the jaw. There is only one treatment available in the UK (teriparatide) which helps to rebuild bone but access to it is restricted due to high costs and it can only be given as daily injections into the skin. More effective, affordable and safe treatments are needed which can be taken by mouth to help rebuild bone and prevent fractures.One approach to finding new osteoporosis treatments is to study people who have High Bone Mass (HBM). HBM is rare, affecting only 0.18% of the population. HBM individuals have thicker/denser bones than normal which means they are less likely to break their bones. HBM runs in families but at present, we do not know all the genes that are responsible for causing HBM. Identifying these genes will help us to develop new treatments which mimic the actions of these genes and help rebuild bone for people suffering with osteoporosis. This approach has already been used successfully in the USA to develop a new osteoporosis treatment to rebuild bone (romosozumab). However, it has been linked to an increased risk of heart attacks, so it is not suitable for everyone. The UK HBM study at the University of Bristol is the largest study of extreme HBM performed to date. Data, blood samples and scans have been gathered from 355 HBM individuals and their relatives from across the UK. Their genetic code (DNA) has been examined and new variations (mutations) in the DNA of 18 families have been identified which may be directly responsible for causing HBM. This research aims to discover these HBM-causing mutations and understand their effects on bone shape, strength and biology. I aim to:i) Discover if the same mutations in UK HBM individuals can be found in the DNA of other people with HBM. This will involve analysing genetic data from several populations, including up to 500,000 people enrolled in the UK Biobank.ii) Examine how the mutation affects HBM individuals and families carrying that mutation, looking in particular for any effects on their bone shape, structure and biology.iii) Establish the function of the genes containing the mutations and their role in bone development using a range of computer-based tools and databases. I will also look at the role of these genes in the zebrafish skeleton. Zebrafish have a very similar bone structure and genetic code to humans, so can give us helpful insights into how these genes might work in humans.iv) Determine how gene mutations might cause HBM using computer-based tools and zebrafish models. The effect on bone development will be measured to predict the likely effects in humans.By understanding the biology of how rare gene mutations cause HBM, I will be able to find new ways to treat osteoporosis. I will work with partners at the University of Bristol, King's College London and the University of Queensland in Australia to help ensure the results of my research lead to the development of new treatments which will directly benefit patients with osteoporosis.
骨质疏松症是一种常见的骨质疏松症。它随着年龄的增长而增加,使骨骼更容易断裂(骨折)。在50岁以上的女性中,有三分之一和五分之一的男性会因为骨质疏松而在一生中骨折。骨折可能对行动能力、独立性和预期寿命造成严重后果。目前大多数骨质疏松症治疗的重点是防止进一步的骨丢失,而不是重建骨。已发现长期使用这些治疗实际上会增加某些类型的不常见骨折的风险,并且很少会对颌骨造成损伤。在英国,只有一种治疗方法(teriparbital)可以帮助重建骨骼,但由于成本高,获得这种治疗方法的机会受到限制,并且只能每天注射到皮肤中。需要更有效,更实惠和更安全的治疗方法,可以通过口服来帮助重建骨骼和预防骨折。寻找新的骨质疏松症治疗方法的一种方法是研究高骨量(HBM)的人。HBM是罕见的,仅影响0.18%的人口。HBM个体的骨骼比正常人更厚/更密,这意味着他们不太可能骨折。HBM在家庭中运行,但目前,我们还不知道导致HBM的所有基因。识别这些基因将有助于我们开发新的治疗方法,模仿这些基因的作用,并帮助骨质疏松症患者重建骨骼。这种方法已经在美国成功地用于开发一种新的骨质疏松症治疗方法来重建骨骼(romosozumab)。然而,它与心脏病发作的风险增加有关,因此它并不适合所有人。英国布里斯托大学的HBM研究是迄今为止最大的极端HBM研究。数据,血液样本和扫描已经收集了来自英国各地的355个HBM个人及其亲属。他们的遗传密码(DNA)已被检查,并在18个家庭的DNA中发现了新的变异(突变),这可能是导致HBM的直接原因。这项研究旨在发现这些HBM引起的突变,并了解它们对骨骼形状,强度和生物学的影响。我的目标是:i)发现英国HBM个体中的相同突变是否可以在其他HBM患者的DNA中发现。这将涉及分析来自多个人群的遗传数据,包括在英国生物银行注册的多达500,000人。ii)检查突变如何影响携带该突变的HBM个体和家庭,特别是寻找对骨骼形状的任何影响,结构和生物学。iii)使用一系列计算机,工具和数据库。我还将研究这些基因在斑马鱼骨骼中的作用。斑马鱼具有与人类非常相似的骨骼结构和遗传密码,因此可以帮助我们了解这些基因如何在人类中发挥作用。iv)使用基于计算机的工具和斑马鱼模型确定基因突变如何导致HBM。通过了解罕见基因突变如何导致HBM的生物学原理,我将能够找到治疗骨质疏松症的新方法。我将与布里斯托大学、伦敦国王学院和澳大利亚昆士兰州大学的合作伙伴合作,帮助确保我的研究成果能够开发出新的治疗方法,使骨质疏松症患者直接受益。

项目成果

期刊论文数量(3)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
High Bone Mass Disorders: New Insights From Connecting the Clinic and the Bench.
  • DOI:
    10.1002/jbmr.4715
  • 发表时间:
    2023-02
  • 期刊:
  • 影响因子:
    6.2
  • 作者:
    Bergen, Dylan J. M.;Maurizi, Antonio;Formosa, Melissa M.;McDonald, Georgina L. K.;El-Gazzar, Ahmed;Hassan, Neelam;Brandi, Maria-Luisa;Riancho, Jose A.;Rivadeneira, Fernando;Ntzani, Evangelia;Duncan, Emma L.;Gregson, Celia L.;Kiel, Douglas P.;Zillikens, M. Carola;Sangiorgi, Luca;Hogler, Wolfgang;Duran, Ivan;Makitie, Outi;Van Hul, Wim;Hendrickx, Gretl
  • 通讯作者:
    Hendrickx, Gretl
Rare and Common Variants in GALNT3 May Affect Bone Mass Independently of Phosphate Metabolism.
  • DOI:
    10.1002/jbmr.4795
  • 发表时间:
    2023-05
  • 期刊:
  • 影响因子:
    6.2
  • 作者:
    Hassan, Neelam;Gregson, Celia L. L.;Tang, Haotian;van der Kamp, Marc;Leo, Paul;McInerney-Leo, Aideen M.;Zheng, Jie;Brandi, Maria Luisa;Tang, Jonathan C. Y.;Fraser, William;Stone, Michael D.;Grundberg, Elin;Brown, Matthew A.;Duncan, Emma L.;Tobias, Jonathan H.
  • 通讯作者:
    Tobias, Jonathan H.
Anabolic treatments for osteoporosis in postmenopausal women.
  • DOI:
    10.12703/r/10-44
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Hassan N;Gregson CL;Tobias JH
  • 通讯作者:
    Tobias JH
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Neelam Hassan其他文献

Phenotyping patterns of left ventricular remodeling and hypertrophy in systemic hypertension by cardiac magnetic resonance (CMR)
  • DOI:
    10.1186/1532-429x-17-s1-p323
  • 发表时间:
    2015-02-03
  • 期刊:
  • 影响因子:
  • 作者:
    Jonathan C Rodrigues;Stephen Lyen;Amardeep Ghosh Dastidar;Neelam Hassan;Amy E Burchell;Laura E Ratcliffe;Emma C Hart;Chiara Bucciarelli-Ducci;Mark Hamilton;Julian F Paton;Angus K Nightingale;Nathan E Manghat
  • 通讯作者:
    Nathan E Manghat
Égalité femmes-hommes dans la pratique clinique, la recherche et la formation : où en est la rhumatologie ?
临床实践、研究和形成中的女性与男性平等:是风湿病学吗?
  • DOI:
  • 发表时间:
    2020
  • 期刊:
  • 影响因子:
    0
  • 作者:
    L. Andréoli;Pavel V. Ovseiko;Neelam Hassan;U. Kiltz;Leonieke J J van Mens;L. Gossec;L. Coates
  • 通讯作者:
    L. Coates
Should we screen for intracranial aneurysms (IAs) in systemic hypertension at the time of cardiac magnetic resonance (CMR)?
  • DOI:
    10.1186/1532-429x-17-s1-p411
  • 发表时间:
    2015-02-03
  • 期刊:
  • 影响因子:
  • 作者:
    Jonathan C Rodrigues;Neelam Hassan;Mandy Williams;Amy E Burchell;Laura E Ratcliffe;Mark Hamilton;Emma C Hart;Angus K Nightingale;Julian F Paton;Nathan E Manghat
  • 通讯作者:
    Nathan E Manghat

Neelam Hassan的其他文献

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