
Welcome to the Spring/Summer 2024 edition of the Institute for the Biology of Stem Cells (IBSC) newsletter
IBSC Hosts Inaugural Industry Day on May 16, 2024

In case you missed it, the IBSC kicked off the first-ever UCSC Industry Day on May 16th. We were thrilled to welcome representatives from over 20 diverse companies and organizations to our campus. They engaged with our graduate students and postdoctoral fellows, participated in panels, and showcased their offerings. The event wasn’t just limited to the registered attendees; everyone strolling through science hill was welcome to attend.
The heart of the action was at the quad area between BioMed and PSB, where exhibitor tables buzzed with activity. Industry experts were on hand to display their products, discuss career paths, and even offer lightning-fast CV reviews. Meanwhile, inside PSB, three Career Development Panel Sessions, expertly moderated by IBSC Postdoctoral Trainees Saran Chattopadhyaya, Tommy Finn and Julien Menedez, provided invaluable insights into the biotech job market. One resounding piece of advice echoed throughout the sessions: connections are key! Every person interested in looking for a job in industry should have a polished LinkedIn page.


During a lively lunchtime chat moderated by Elizabeth Firestone, we had the pleasure of hosting a Female Founder’s Entrepreneurship “Fireside” Chat with special guests Madeline Schade of MantleBio and Tara Holz of CITO Medical. They unpacked the triumphs and difficulties associated with building one’s own business from the ground up. Also happening throughout the day was the poster session, where our trainees had the chance to showcase their research to industry guests.
The feedback from our industry visitors spoke volumes: UCSC graduate student researchers and postdoctoral fellows left an indelible mark. Many walked away with interviews, internships, and even job offers on the spot. Despite an unfortunate interruption from demonstrators later in the day, our visitors praised the meaningful connections they forged and expressed eagerness to participate in future events.


At the IBSC, we’re proud to have shattered the mold of traditional vendor shows and career fairs. Industry Day exemplified the power of collaboration between academia and industry, paving the way for future partnerships and networking.
Industry Day was generously funded by the CIRM and T32 Training Programs which continue to support our mission of advancing scientific research and career development. A special thanks to the Office of Research and especially Andrea Pesce, without whom the event would not have been possible..


We are also grateful to Greg at Togo’s for his generous support.
UC Santa Cruz scientists reveal new path to increasing lactation for nursing mothers
A recent study by UC Santa Cruz researchers has revealed a new way to enhance lactation for nursing mothers. This discovery was made by postdoctoral fellows Rut Molinuevo and Julien Menendez who were interested in understanding how milk producing cells acquire more than the normal DNA content to become polyploid. Polyploidy is usually a condition associated with cancer cells and although this phenomenon in the breast during pregnancy was described over 40 years, the mechanism underlying the process was still unknown. Rut and Julien showed that the tremendous proliferation required during pregnancy to build a milk supply causes DNA damage. This results in the cells switching from normal mitosis, where they make two equivalent daughter cells, to endoreplication, which allows the cells to produce one daughter with twice (or more) of the normal DNA content.
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These researchers further showed that a critical gatekeeper of the cell cycle, the kinase WEE1, is responsible for this regulatory mechanism that harnesses physiological DNA damage to generate these milk-producing cells that are chock full of DNA. In addition to uncovering a fundamental biological process, the study opens the door to a non-hormonal means for increasing milk production. The paper, titled “Physiological DNA damage promotes functional endoreplication of mammary gland alveolar cells during lactation,” was published on April 17th in Nature Communications and featured in the CIRM Newsletter as a “Top CIRM Mention”. For those interested in learning more about how DNA damage enhances milk production, the full manuscript is available via Nature Communications.
This research was conducted by IBSC CIRM Alumni Rut Molinuevo-Llaria; current IBSC T32 Postdoctoral Trainee Julien Menendez; IBSC Program Co-Director and Distinguished Professor Lindsay Hinck; as well as other talented UCSC researchers from the MCD Department and collaborators at Zoetis.



For more information on the Hinck lab and their pioneering research, please visit the Hinck lab page here. If you are interested in learning more about lactation insufficiency which affects 5-15% of breastfeeding women worldwide, you can visit the Low Milk Supply Foundation. Interested in becoming a CIRM or T32 Trainee like Rut or Julien? Learn more and apply by clicking the button below.
IRACDA Fellow Publishes on Novel Educational Tools
Current IRACDA Postdoctoral Trainee Jess Sevetson has made an exciting and novel contribution to the field of STEM education with her recent manuscript “Gamifying cell culture training: The ‘Seru-Otchi’ experience for undergraduates.” This innovative approach to education uses gamification techniques to enhance the learning experience and engagement of undergraduate students for training in cell culture. You can read Jess’s full manuscript on Science Direct.

As an IRACDA Trainee with mentored pedagogical training, Jess’s recent publication highlights the potential benefits of gamified learning tools to revolutionize the way complex scientific concepts are taught. These teaching strategies are particularly important for students in less resourced schools that do not have on-site cell culture facilities. Jess’s work is conducted within the Haussler and Salama labs. You can learn more by visiting their lab webpage here.
Interested in pursuing an academic career with a teaching component, perhaps at a Community College or Undergraduate University (PUI)? If so you can apply to become an IRACDA Postdoctoral Trainee like Jess by applying before August 31st! Learn more and apply by clicking the button below.
IRACDA Trainees and Directors Attend 2024 IRACDA Conference
IRACDA Postdoctoral Trainees headed off to UNC in North Carolina accompanied by program Co-Directors Camilla Forsberg (UCSC), Lindsay Hinck (UCSC), and Aparna Sreenivasan (CSUMB) for the 2024 IRACDA Conference. IRACDA Program Trainees and Directors from the 21 IRACDA Training Programs located throughout the United States met at UNC for a two day conference driven by the theme of “Maximizing Impact through Research and Teaching.”
The conference program included a wide range of activities focused on enhancing research and teaching in higher education. Key events included workshops on inclusive teaching and undergraduate research, multiple breakout sessions on topics such as mental health, mentorship, and resilience in STEM education, as well as poster sessions and networking opportunities. We look forward to seeing our IRACDA colleagues from across the country again next year at the 2025 IRACDA Conference!

IBSC Welcomes new IRACDA and CIRM Fellows
The IBSC is delighted to announce the addition of two new Postdoctoral fellows to our IRACDA and CIRM Postdoctoral Training Programs!

Conrad Fihn has joined us as an IRACDA fellow aiming to pursue an academic career in teaching and research. Conrad has been a Postdoc at UCSC since 2023, having earned his Ph.D. in medicinal chemistry at the University of Minnesota, Minneapolis, and B.S. in chemistry at Occidental College in Los Angeles. Conrad will be working in the Sanchez Lab within the department of Chemistry and Biochemistry, where his research will focus on developing a high-throughput mass spectrometry screening method for assaying mutants generated by directed enzyme evolution.
Mojtaba Zeraatkar joins us as a CIRM fellow eager to pursue research aligned with CIRM’s regenerative and translational medicine priorities. Mojtaba has been a Postdoc at UCSC since 2022, having earned his Ph.D. in mechanical engineering at the Polytechnic University of Bari, Italy where he also worked as a researcher on microfabrication. Mojtaba will be working in the Teodorescu Lab within the Baskin School of Engineering/Genomics Institute, where his research will focus on developing a scalable, automated, and programmable microfluidic system for tissue culture incubators to enhance organoid culture.

We look forward to welcoming Conrad and Mojtaba within the IBSC and hope you take a chance to say hello as you cross paths in the lab and in the halls!
IBSC Welcomes 2024 GAIN Cohort
The IBSC is thrilled to announce and introduce our GAIN 2024 cohort, a group of talented and motivated CSUMB undergraduate students who will participate in a 2-month summer research experience under the mentorship of a UCSC Postdoc and with the support of their lab.

This year’s cohort of CSUMB Students are:
- Sarina Regis
- Hailie Milam
- Lauren Maravilla
- Olivia Brodmerkle
- Lily Nixon
- Lillian Tarantino
- Isaiah Ruvalcaba
These seven students will be mentored by an incredible group of Postdoctoral Mentors, some of whom are existing IRACDA and T32 Postdoctoral Trainees:
- Saran Chattopadhyaya (T32)
- Gerrald Lodewijk
- Nafisehsadat Jafarzadeh
- Estefania Sanchez Vasquez (IRACDA)
- Simon Titen
- Jess Sevetson (IRACDA)
For the next 2 months,these students will come to UCSC daily to work closely with their postdoc mentor as well as other students, postdocs, and faculty. By working in a lab, each student will gain hands-on experience and valuable insights to support their graduate school aspirations. We are excited to see where these students go in the future and how they continue to contribute to STEM and research. You can learn all about the GAIN Program and the resources it provides on the IBSC Website or by clicking the button below.

CIRM Fellow Ryan Hoffman Receives Travel Award for ISSCR Research Conference
We are proud to announce that CIRM Predoctoral Trainee Ryan Hoffman (Salama Lab) has been awarded a travel grant for the upcoming ISSCR conference. His research, titled “Improved cerebral organoid specification using a scalable hydrogel application and physiological glucose culturing,” focuses on enhancing the development and functionality of cerebral organoids with the goal of providing valuable insights into neurological development.

Ryan’s work as a CIRM Trainee focuses on the patterning role of the choroid plexus in human cerebral cortex development and leverages human organoids to investigate neurodevelopmental processes. For more information on the Salama lab and their groundbreaking work, please be sure to visit their lab webpage here. Are you currently pursuing your Ph.D. and interested in becoming a CIRM Predoctoral Trainee like Ryan? Learn more and apply by clicking the button below.
IBSC Co-Director at CSU Monterey Bay Provides Keynote Address at Annual Postdoctoral Symposium
The recent UC Santa Cruz Postdoc Symposium was a resounding success, celebrating the groundbreaking work of our early career researchers. Dr. Aparna Sreenivasan, Co-PI for the IRACDA Training Program and Professor and Department Chair at CSU Monterey Bay served as the symposium’s keynote speaker, providing valuable career advice for all those in attendance. Dr. Sreenivasan leads the pedagogical training activities at CSUMB as part of the IRACDA Training Program; providing UCSC Postdocs and CSUMB Undergrads mutually beneficial training experiences as Postdocs gain valuable teaching experience while undergrads benefit from a fresh approach to instruction, and instructors more closely relatable to them. The IBSC is grateful to our partners at CSUMB for continuing to provide these training experiences.

IBSC Co-Director Receives Distinguished Postdoctoral Scholar Faculty Mentor Award
UCSC is dedicated to promoting postdoctoral scholars who exemplify the university’s mission and high standards. To acknowledge the crucial role that mentors play in the academic and professional development of these scholars, UCSC has established the Distinguished Postdoctoral Scholar Faculty Mentor Award.

Each year, the UCSC Postdoc Organization (USPA) hosts a symposium with this year’s event having taken place at the Seacliff Inn in Aptos. Dr. Camilla Forsberg was honored with the award, having been nominated by her current postdocs. Dr. Lindsay Hinck supported the nomination with a letter from a colleague. At the symposium, Dr. Forsberg’s postdocs accepted the award on her behalf.
IRACDA Postdoctoral Trainees Selected to Attend Competitive Leadership Workshop
We are delighted to announce that two of our current IRACDA Postdoctoral Trainees, Bryce Manso, Ph.D. and Estefania Sanchez-Vasquez Ph.D., have been selected to attend the highly competitive “Inclusive Leadership Workshop” offered through the University of Washington’s Institute for Stem Cell and Regenerative Medicine.


This prestigious workshop is designed to cultivate leadership skills and promote inclusivity within the scientific community. The selection of Bryce and Estefania for this workshop is a testament to their dedication and potential as future academic leaders in their fields. This workshop will provide them with valuable training and networking opportunities and enhance their pedagogical and research training in support of their future academic careers. The IBSC is incredibly proud of their achievements and looks forward to seeing the positive impact they will make on the lives of students and the greater scientific community.

UC-HSI-DDI Doctoral Diversity Fellows Visit CSU Campuses to Speak About Pursuing a Ph.D.

The IBSC’s UC-HSI-DDI Doctoral Diversity Initiative continues to build bridges for undergraduate students to access graduate school. We know from past years that many students are unaware of the opportunities in STEM, and even if they are aware, the application process often seems daunting. Similar to previous years, our “campus tours” were to CSU Monterey Bay, CSU East Bay, San Francisco State University, and CSU Stanislaus. Graduate students Natalie Pedicino, Prajna Hebbar, Ivana Pačar and Sebastian Hernandez provided CSU undergraduate students with invaluable insights and networking connections to help them forge paths to a Ph.D. and beyond
UC-HSI-DDI Fellow Natalie Pedicino shared her experience, stating, “The UC-HSI-DDI program was an excellent opportunity for me to form connections with undergrads and delve into the hidden graduate school curriculum.”


“I was able to have meaningful conversations with students and connect with them on an interpersonal level about my experiences and how best to support their exploration of graduate school. This program provided a unique and valuable platform to meet with students in a group setting and one-on-one and unpack the reality of applying and being in graduate school. It also allowed me to share my experience and empower others to pursue their goals.”
Similarly, UC-HSI-DDI Fellow Prajna Hebbar reflected on her interactions with students, noting, “Talking to the undergrads at CSU Stanislaus and SFSU and being able to share my journey to grad school was wonderful. To me, the best part was to be able to show them that I am not too different from them and that with persistence and confidence they too could get to the grad school of their dreams.”


“A lot of my one-on-one interactions after the presentations showed their dedication toward finding more opportunities and figuring out what exactly they wanted to do, and I am still in touch with a few of them. I’m incredibly glad to have impacted their paths in a tiny way.”
Ivana Pačar, another UC-HSI-DDI Fellow commented that “From working on our presentations and finding the best way to demonstrate that anyone can be on a path to q PhD with the right help to meeting the students in person and realizing how sometimes all it takes is seeing someone with a similar life story in the position you want to reach,”


“Being a part of this year’s UC Doctoral Diversity Initiative cohort has been an all-around rewarding experience. Across all campuses visited, we gave our best to share the resources and inside knowledge we often take for granted, and seeing how many students reached out (either by staying after the talk or via email), I believe that the program was successful in its mission. This opportunity also reminded me to enjoy and celebrate the stage of my academic career I am currently in, together with all the obstacles that led to it. I am grateful for this experience and look forward to seeing the program reach even more students over the next few years.”
Lastly, Sebastian Hernandez, UC-HSI-DDI Fellow also reflected,”My experience felt like a metamorphosis, allowing me to rediscover my own story while encouraging students to be proud of theirs.”


“Each visit and meeting was an opportunity to show them that achieving their goals is possible, regardless of their background. It was deeply fulfilling to provide the support I would have loved to receive when I was younger.”
Research Updates: Publication/Manuscript Roll Call
The IBSC is home to a wide array of research areas that are not limited to stem cell biology. The following preprints and papers have recently been published by our affiliated labs. IBSC trainees are indicated in bold.

- Haussler-Salama Lab
- Voitiuk K, Seiler ST, de Melo MP, Geng J, Hernandez S, Schweiger HE, Sevetson JL, Parks DF, Robbins A, Torres-Montoya S, Ehrlich D, Elliott MAT, Sharf T, Haussler D, Mostajo-Radji MA, Salama SR, Teodorescu M. A feedback-driven IoT microfluidic, electrophysiology, and imaging platform for brain organoid studies. bioRxiv. 2024 Mar 17:2024.03.15.585237. doi: 10.1101/2024.03.15.585237. PMID: 38559212
- Shin D, Kim CN, Ross J, Hennick KM, Wu SR, Paranjape N, Leonard R, Wang JC, Keefe MG, Pavlovic BJ, Donohue KC, Moreau C, Wigdor EM, Larson HH, Allen DE, Cadwell CR, Bhaduri A, Popova G, Bearden CE, Pollen AA, Jacquemont S, Sanders SJ, Haussler D, Wiita AP, Frost NA, Sohal VS, Nowakowski TJ. Thalamocortical organoids enable in vitro modeling of 22q11.2 microdeletion associated with neuropsychiatric disorders. Cell Stem Cell. 2024 Feb 13:S1934-5909(24)00040-7. doi: 10.1016/j.stem.2024.01.010. PMID: 38382530
- Spaeth A, Haussler D, Teodorescu M. Model-Agnostic Neural Mean Field With The Refractory SoftPlus Transfer Function. bioRxiv [Preprint]. 2024 Feb 6:2024.02.05.579047. doi: 10.1101/2024.02.05.579047. PMID: 38370695
- Chen Lab
- Xiaoyi G Liang, Kendy Hoang, Brandon L Meyerink, Pratiksha Kc, Kitt Paraiso, Li Wang, Ian R Jones, Yue Zhang, Sol Katzman, Thomas S Finn, Jeremiah Tsyporin, Fangyuan Qu, Zhaoxu Chen, Axel Visel, Arnold Kriegstein, Yin Shen, Louis-Jan Pilaz, Bin Chen. “A Conserved Molecular Logic for Neurogenesis to Gliogenesis Switch in the Cerebral Cortex.” Proceedings of the National Academy of Sciences, vol. 121, no. 20, 2024, p. e2321711121, doi:10.1073/pnas.2321711121. Accessed 3 June 2024.
- Forsberg Lab
- Bryce A. Manso, Alessandra Rodriguez y Baena, and E. Camilla Forsberg. From Hematopoietic Stem Cells to Platelets: Unifying Differentiation Pathways Identified by Lineage Tracing Mouse Models. Cells, 2024.
- Donna M Poscablo, Atesh K Worthington, Stephanie Smith-Berdan, Marcel GE Rommel, Bryce A Manso, Reheman Adili, Taylor Cool, Lydia Mok, Roman E Reggiardo, Raana Mogharrab, Jenna Myers, Steven Dahmen, Anna E Beaudin, Scott W Boyer, Michael Holinstat, Vanessa D Jonsson, E Camilla Forsberg. An age-specific platelet differentiation path from hematopoietic stem cells causes exacerbated thrombosis. Provisionally accepted in Cell, 2024
- Hinck Lab
- Rut Molinuevo, Julien Menendez, Kora Cadle, Nabeela Ariqat, Marie Klaire Choy, Cayla Lagousis, Gwen Thomas, Catherine Strietzel, J. W. Bubolz & Lindsay Hinck. Physiological DNA damage promotes functional endoreplication of mammary gland alveolar cells during lactation. Nat Commun 15, 3288 (2024). https://doi.org/10.1038/s41467-024-47668-9
2025 Program Year Application Call

After hearing about all of this IRACDA, CIRM, T32, UC-HSI-DDI, and GAIN business, are you interested in learning more about one of the IBSC’s Training Programs and applying? If so, Applications for the upcoming 2025 Program Year are now open!
The deadline to apply is 11:59pm on August 31st. The IBSC’s programs, including IRACDA, CIRM, and T32, offer mentored research training and career development for a variety of career paths and research foci. These programs are designed to support developing a diverse next generation of scientists and researchers, providing them with the skills and experiences needed to excel in their academic, non-profit, industry/biotech, and other scientific careers. Learn more and apply by clicking the button below.