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1. Tibial osteochondroma with thick cartilage which mimicked a chondrosarcoma: A case report

Author

Victoria Xie, Yi Yan, Miao Lu, David Perrin, Gregory Garvin, and Laurence Stillwater

Subjects
Osteochondroma, Cartilaginous cap, Chondrosarcoma, Medical physics. Medical radiology. Nuclear medicine, R895-920
Abstract

We report a case of tibial osteochondroma in a 25-year-old female who presented with a palpable calf mass. This mass was associated with a thick cartilaginous cap on cross-sectional imaging, suggesting chondrosarcoma. A CT-guided biopsy was performed, and histology, however, was consistent with osteochondroma. Orthopedic oncology recommended surgical excision due to the potential high sampling error with chondroid lesions. The patient underwent surgical resection, resulting in a final diagnosis of osteochondroma. No post-surgical complications occurred, and a 12-month follow-up showed no evidence of local recurrence. This case highlights the atypical imaging feature of a thick cartilaginous cap in a benign etiology without malignant transformation.

Published
2024
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2. Fourth Annual Summer Research Summit on Health Equity Organized by the Center of Excellence in Health Equity, Training and Research, Baylor College of Medicine, Houston, Texas 77030, USA on May 20, 2021

Author

Aanand Naik, Abbhirami Rajagopal, Adam Floyd, Adriana Gil, Aisha Tepede, Aisha Koroma, Aisha Deslandes, Akua Graf, Alejandra Ruiz-Velasco, Alexa Reyna-Carrillo, Alexandra Alvarenga, Alexia Awoseyi, Alexis Hernandez, Alexis Lawrence, Ali Asghar-Ali, Allyssa Abacan, Alyce Adams, Alyna Khan, Alyson McGregor, Alyssa Hansen, Amari Johnson, Andrea Coj, Andrea Vick, Andria Tatem, Anjali Aggarwal, Anjali Deendyal, Ann Blake, Annabella Awazi, Anne VanHorn, Anuj Marathe, Anusha Jayaram, April Adams, Arabella Hall, Ariana Heredia, Ariana Chavarria, Asha Morrow, Ashley Butler, Asia Hodges, Aura Mejia, Avani Patel, Ayleen Hernandez, Benjamin Akande, Blessing Felix-Okoroji, Brisa Garcia, Buckleitner Jenna, Callie Fischer, Camden Hallmark, Cara Coren, Carlos Ramos, Cecilia Gambala, Charleta Guillory, Chelsea Livingston, Chioma Onyejiaka, Chishinga Callender, Christina Aldrich, Christopher Largaespada, Claire Bocchini, Craig Cochran, Danielle Sherman, Danielle Gonzales, David Venzon, David Wittkower, Debbe Thompson, Deborah Thompson, Debra Eseonu, Deepa Dongarwar, Delia Rospigliosi, Denise Smart, Denisse Velazquez, Derek Lockett, Eberechi Nwogu-Onyemkpa, Elizabeth Byrne, Elyse Lopez, Eric Dybbro, Eric Storch, Erica Onwuegbuchu, Erica Valdes, Erin Donovan, Eunique Williams, Evan Keil, Faith Ihekweazu, Felicia Rosiji, Gabriela Espinoza-Candelaria, Gabriella Chmaitelli, Gabriella Tavera, Gail Oneal, Gal Barbut, Gauvain Tonpouwo, George Carrum, Gina DeFelice, Hamisu Salihu, Heather Haq, Helen Heslop, Houston Lester, Ifeoma Ezenwabachili, Ila Gautham, Jacquelin Powell, Jaime Alleyn, Jasmine King, Jaydira Rivero, Jayer Chung, Jayna Dave, Jean Raphael, Jen Bryan, Jendi Haug, Jennifer Bryan, Jenny Blau, Jerry Bellamy, Jessica Medrano, Jessica Ramirez, Jocelyn Greely, Jonnae Atkinson, Jorge Miranda, Jose Dominguez, Jose Roca, Joseph Mills, Joshua Hamer, Joshua Muñiz, Julliet Ogu, Karen Gibbs, Karen Johnson, Karen Riggins, Karla Fredricks, Keila Lopez, Kellie Williams, Keyishi Peters, Kil Hyein, LaQuisa Hill, Lee Weinstein, Lena Shay, Lentz Lefevre, Lindy Ross, Lisa Noll, Lois Akpati, Lorin Crear, Lucy Puryear, Maame Coleman, Madhuri Vasudevan, Malachi Miller, Maria Vigil-Mallette, Maria Jaramillo, Mariam Chacko, Mariana Baroni, Mariana Murillo, Maricarmen Marroquin, Marina Masciale, Marlene McNeese, Martinez Austin, Matthew Koller, Maya Lee, Maziar Nourian, Megan Abadom, Meghna Sebastian, Meheret Adera, Mei-Lei Laracuente, Michelle Lopez, Michelle Wright, Miguel Montero-Baker, Monica Gonzalez, Morrow Adelene, Mosope Adeyeye, Muzaffar Qazilbash, Namrata Walia, Nancy Shenoi, Natalia Rodriguez, Naya Mukdadi, Neeraj Saini, Norma Olvera, Ololade Chris-Rotimi, Paige Hoyer, Parisa Fallah, Peggy Smith, Premal Lulla, Priscilla Ehieze, Priyanka Murali, Rachel Head, Rachel Nwaneri, Rachelle Wanser, Racquel Lyn, Rammurti Kamble, Ramyar Gilani, Raquel Martinez, Rathi Asaithambi, Reginald Hatter, Rhanna Wilson, Ria Brown, Robert Shulman, Robert Mbilinyi, Robert Levine, Roe Avery, Romil Patel, Roslyn Aduhene-Opoku, Ruth Mizu, Saad Usmani, Sadia Usmani, Saeed Ahmed, Samantha Moore, Samer Hadidi, Sana Erabti, Sana Javed, Sana Younus, Sanders Mar’Quenda, Sandy Samaan, Sara Alam, Sara Welty, Sergio Navarro, Shad Deering, Shaine Morris, Shana Alford, Shangir Siddique, Shantyka Walton, Shayan Bhathena, Shelease O’Bryant, Shital Patel, Sindhu Idicula, Sophia Banu, Sophie Albert, Sophie McCullum, Sophie Lin, Star Okolie, Sunita Agarwal, Susan Gillespie, Syed Hussaini, Sylvia Hysong, Tammy Kang, Tara Everett, Taylor Ottesen, Tiana DiMasi, Tien Nguyen, Toi Harris, Tzu-An Chen, Vicki Mercado, Victoria Michael, Victoria Xie, William Simonds, Yesenya Gonzalez, Yicenia Aviles, Ynhi Thomas, and Zachary Pallister

Subjects
Public aspects of medicine, RA1-1270
Abstract

The fourth annual summer research summit organized by the Center of Excellence (COE) in Health Equity, Training and Research, Baylor College of Medicine (BCM) was held on May 20, 2021. The theme of this year’s summit was ‘Strengthening Our Commitment to Racial and Social Justice to Improve Public Health.’ Given the ongoing pandemic, the summit was conducted virtually through digital platforms. This program was intended for both BCM and external audiences interested in advancing health equity, diversity and inclusion in healthcare among healthcare providers and trainees, biomedical scientists, social workers, nurses, individuals involved in talent acquisition and development such as hiring managers (HR professionals), supervisors, college and hospital affiliate leadership and administrators, as well as diversity and inclusion excellence practitioners. We had attendees from all regions of the United States, India, Pakistan and the Demographic Republic of the Congo. The content in this Book of Abstracts encapsulates a summary of the research efforts by the BCM COE scholars (which includes post-baccalaureate students, medical students, clinical fellows and junior faculty from BCM) as well as the external summit participants. The range of topics in this year’s summit was quite diverse encompassing disparities in relation to maternal and child health (MCH), immigrant heath, cancers, vaccination uptakes and COVID-19 infections. Various solutions were ardently presented to address these disparities including community engagement and partnerships, improvement in health literacy and development of novel technologies and therapeutics. With this summit, BCM continues to build on its long history of educational outreach initiatives to promote diversity in medicine by focusing on programs aimed at increasing the number of diverse and highly qualified medical professionals ready to introduce effective and innovative approaches to reduce or eliminate health disparities. These programs will improve information resources, clinical education, curricula, research and cultural competence as they relate to minority health issues and social determinants of health. The summit received very positive response in terms of zealous participation and outstanding evaluations; and overall, it was a great success. Copyright © 2021 Lopez et al. Published by Global Health and Education Projects, Inc. This is an open-access article distributed under the terms of the Creative Commons Attribution License CC BY 4.0.

Published
2021

3. A-to-I miR-378a-3p editing can prevent melanoma progression via regulation of PARVA expression

Author

Guermarie Velazquez-Torres, Einav Shoshan, Cristina Ivan, Li Huang, Enrique Fuentes-Mattei, Harrison Paret, Sun Jin Kim, Cristian Rodriguez-Aguayo, Victoria Xie, Denise Brooks, Steven J. M. Jones, A. Gordon Robertson, George Calin, Gabriel Lopez-Berenstein, Anil Sood, and Menashe Bar-Eli

Subjects
Science
Abstract

In melanoma, reduced ADAR1 impairs A-to-I microRNA editing. Here, the authors show that miR-378a-3p undergoes this editing in non-metastatic cells and the edited form of miR-378a-3p binds to the PARVA oncogene, inhibiting its expression and preventing melanoma progression and metastasis.

Published
2018
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4. YTHDF3 Induces the Translation of m(6)A-enriched Gene Transcripts to Promote Breast Cancer Brain Metastasis

Author

Sicong Zhang, Chuan He, Yongjie Ma, Li Ma, Suyun Huang, Lixian Zeng, Guoqiang Chang, Jason T. Huse, Lei Shi, Peng Li, Leng Han, Victoria Xie, Lei Huo, Jianwei Zhu, Youqiong Ye, Shweta Tiwary, and Hailing Shi

Subjects
0301 basic medicine, Cancer Research, Adenosine, Angiogenesis, Breast Neoplasms, Article, 03 medical and health sciences, Mice, 0302 clinical medicine, Breast cancer, Cell Line, Tumor, Medicine, Animals, Humans, Autoregulation, Gene Regulatory Networks, Epigenetics, business.industry, Brain Neoplasms, RNA-Binding Proteins, Translation (biology), Cell Biology, medicine.disease, Survival Analysis, Extravasation, Up-Regulation, Gene Expression Regulation, Neoplastic, 030104 developmental biology, Oncology, 030220 oncology & carcinogenesis, Cancer cell, Cancer research, Female, business, 5' Untranslated Regions, Neoplasm Transplantation, Brain metastasis
Abstract

Brain metastasis is a major cause of cancer mortality, but its molecular mechanisms are severely understudied. In addition, little is known regarding the role of m6A reader YTHDF3 in human diseases. Here, we show that YTHDF3 overexpression clinically correlates with brain metastases in breast cancer patients. YTHDF3 promotes cancer cell interactions with brain endothelial cells and astrocytes, blood-brain barrier extravasation, angiogenesis, and outgrow. Mechanistically, YTHDF3 enhances the translation of m6A-enriched transcripts for ST6GALNAC5, GJA1, and EGFR, all associated with brain metastasis. Furthermore, overexpression of YTHDF3 in brain metastases is attributed to increased gene copy number and the autoregulation of YTHDF3 cap-independent translation by binding to m6A residues within its own 5' UTR. Our work uncovers an essential role of YTHDF3 in controlling the interaction between cancer cells and brain microenvironment, thereby inducing brain metastatic competence.

Published
2020

5. Epigenetic regulation of cancer stem cell and tumorigenesis

Author

Kezhou Zhu, Suyun Huang, and Victoria Xie

Subjects
Brain Neoplasms, Biology, DNA Methylation, medicine.disease_cause, Chromatin remodeling, Article, Epigenesis, Genetic, 03 medical and health sciences, 0302 clinical medicine, Cell Transformation, Neoplastic, Histone demethylation, Cancer stem cell, 030220 oncology & carcinogenesis, Cancer cell, DNA methylation, medicine, Cancer research, Neoplastic Stem Cells, Animals, Humans, Epigenetics, Stem cell, Carcinogenesis, Glioblastoma
Abstract

As a unique subpopulation of cancer cells, cancer stem cells (CSCs) acquire the resistance to conventional therapies and appear to be the prime cause of cancer recurrence. Like their normal counterparts, CSCs can renew themselves and generate differentiated progenies. Cancer stem cells are distinguished among heterogenous cancer cells by molecular markers and their capacity of efficiently forming new tumors composed of diverse and heterogenous cancer cells. Tumor heterogeneity can be inter- or intra-tumor, molecularly resulting from the accumulation of genetic and non-genetic alterations. Non-genetic alterations are mainly changes on epigenetic modifications of DNA and histone, and chromatin remodeling. As tumor-initiating cells and contributing to the tumor heterogeneity in the brain, glioblastoma stem cells (GSCs) attract extensive research interests. Epigenetic modifications confer on tumor cells including CSCs reversible and inheritable genomic changes and affect gene expression without alteration in DNA sequence. Here, we will review recent advances in histone demethylation, DNA methylation, RNA methylation and ubiquitination in glioblastomas and their impacts on tumorigenesis with a focus on CSCs.

Published
2020

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