Louise Purton

Key takeaways

Louise Purton belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Louise Purton to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Louise Purton from memory before moving on to harder problems.

Reference excerpt

Louise E. Purton is an Australian biologist who is Professor of Medicine and head of the Stem Cell Regulation Laboratory at St. Vincent's Institute of Medical Research in Melbourne. Her research considers the stem cells responsible for the production of blood cells and the regulations of haematopoietic diseases. She was awarded the International Society for Experimental Hematology McCulloch & Till Award in 2022. She has experienced profound bilateral hearing loss since the age of three and has been recognised for her work supporting Equity and Diversity, particularly amongst women and people with disability, and is a member of the AAMRI Gender, Equity and Diversity and Inclusion group GEDI.

Early life and education Purton was raised in Balranald, New South Wales. At age three she became profoundly deaf after experiencing a life-threatening illness. She had Cochlear implants inserted in 2018 and 2021. Purton was an undergraduate student at the University of Melbourne. She remained there for doctoral research, where she studied the stroll cell types in bone marrow. She moved to the United States for postdoctoral research, where she worked at the Fred Hutchinson Cancer Research Center and identified that the all-trans retinoic acid enhances the renewal of hematopoietic stem cells. She returned to Australia in 2000, when she studied the roles of various retinoic acid receptors and their roles on haematopoiesis. She showed that self-renewal is regulated by Retinoic acid receptor gamma, and loss of this receptor has intrinsic and extrinsic impacts on haematopoiesis. She returned to America in 2004, where she studied cells in the bone marrow microenvironment and how they could regulate myeloproliferative-like disorders.

Research and career Purton's research is focused on processes involved in blood cell production (haematopoietic stem cells (HSCs). In 2008 Purton returned to Australia, where she launched the St. Vincent's Institute of Medical Research Stem Cell Regulation Unity. She investigates the processes involved in haematopoiesis, the production of blood cells. These processes involve hematopoietic stem cells, which can either self-renew or differentiate into more mature types. Issues surrounding the regulation of hematopoietic stem cells can lead to diseases such as leukaemia. Purton investigates the roles of retinoic acid receptors in haematopoiesis. She makes use of mouse models, cell assays and gene transduction. Through these studies, she identified how blood cells are produced in bone marrow, which can impact the downstream treatment of blood cancer. Purton has studied the role of Homeobox A1 (HOXA1) in myelodysplastic syndrome (MDS), a blood cell disease that results in bone marrow failure. Around 30% of patients with MDS progress to acute myeloid leukaemia, and the only treatment is hematopoietic stem cell transplantation. She identified that altered HOXA1 genes impact the ability of haematopoietic stem cells. Purton was appointed Associate Editor of Experimental Hematology in 2020.

Awards and honours 2011 National Health and Medical Research Council Senior Research Fellowship 2016 SVI Foundation Award 2019 University of Melbourne Professorial Fellow 2022 International Society for Experimental Hematology McCulloch & Till Award 2022 Chair, ASH Scientific Committee on Stem Cells and Regenerative Medicine. 2023 Member, Scientific Program Committee, International Society for Experimental Hematology, Member, ASH Committee for Scientific Affairs. 2023 ISEH award for Leadership in Diversity, Equity and Inclusion.

Academic service Purton has worked to improve diversity within the scientific community. She identified and publicised inequality in the rates of funding for men and women in Australia. For example, she identified that the National Health and Medical Research Council awarded men 23% more grants ($95 million more funding) than their female counterparts. She worked with Jessica Borger to launch a petition calling for a strategic overhaul of the NHMRC funding body.

Selected publications

Carl R Walkley; Gemma Haines Olsen; Sebastian Dworkin; et al. (1 June 2007). "A microenvironment-induced myeloproliferative syndrome caused by retinoic acid receptor gamma deficiency". Cell. 129 (6): 1097–1110. doi:10.1016/j.cell.2007.05.014. ISSN 0092-8674. PMC 1974882. PMID 17574023. Wikidata Q35987653. Carl R Walkley; Jeremy M Shea; Natalie A. Sims; Louise E Purton; Stuart H Orkin (1 June 2007). "Rb regulates interactions between hematopoietic stem cells and their bone marrow microenvironment". Cell. 129 (6): 1081–1095. doi:10.1016/j.cell.2007.03.055. ISSN 0092-8674. PMC 2768301. PMID 17574022. Wikidata Q41883433. B. Varnum-Finney; L. E. Purton; M. Yu; et al. (1 June 1998). "The Notch ligand, Jagged-1, influences the development of primitive hematopoietic precursor cells". Blood. 91 (11): 4084–4091. ISSN 0006-4971. PMID 9596653. Wikidata Q42829850.

References

External links Louise Purton publications indexed by Google Scholar

Illustrations

Worked examples

Example 1 — a first encounter with Louise Purton

Start with the simplest possible case. Write down what Louise Purton claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Louise Purton before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Louise Purton ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Louise Purton

In research: Louise Purton appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Louise Purton in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Louise Purton is common in secondary-school and first-year university syllabi. It links to neighbouring topics Australian biologists, Australian women scientists, Living people, so understanding it makes those chapters shorter.
In everyday life: Look for Louise Purton outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

How to study Louise Purton in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Louise Purton means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Louise Purton out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Louise Purton in simple terms?

Louise E. Purton is an Australian biologist who is Professor of Medicine and head of the Stem Cell Regulation Laboratory at St.

Why does Louise Purton matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Louise Purton?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Louise Purton.